diff options
Diffstat (limited to 'drivers/spmi')
| -rw-r--r-- | drivers/spmi/spmi-pmic-arb.c | 964 | ||||
| -rw-r--r-- | drivers/spmi/spmi.c | 2 |
2 files changed, 592 insertions, 374 deletions
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 937c153245..791cdc160c 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -13,6 +13,8 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/spmi.h> @@ -94,6 +96,8 @@ enum pmic_arb_channel { PMIC_ARB_CHANNEL_OBS, }; +#define PMIC_ARB_MAX_BUSES 2 + /* Maximum number of support PMIC peripherals */ #define PMIC_ARB_MAX_PERIPHS 512 #define PMIC_ARB_MAX_PERIPHS_V7 1024 @@ -125,64 +129,84 @@ struct apid_data { u8 irq_ee; }; +struct spmi_pmic_arb; + /** - * struct spmi_pmic_arb - SPMI PMIC Arbiter object + * struct spmi_pmic_arb_bus - SPMI PMIC Arbiter Bus object * - * @rd_base: on v1 "core", on v2 "observer" register base off DT. - * @wr_base: on v1 "core", on v2 "chnls" register base off DT. + * @pmic_arb: the SPMI PMIC Arbiter the bus belongs to. + * @domain: irq domain object for PMIC IRQ domain * @intr: address of the SPMI interrupt control registers. * @cnfg: address of the PMIC Arbiter configuration registers. + * @spmic: spmi controller registered for this bus * @lock: lock to synchronize accesses. - * @channel: execution environment channel to use for accesses. - * @irq: PMIC ARB interrupt. - * @ee: the current Execution Environment - * @bus_instance: on v7: 0 = primary SPMI bus, 1 = secondary SPMI bus - * @min_apid: minimum APID (used for bounding IRQ search) - * @max_apid: maximum APID * @base_apid: on v7: minimum APID associated with the particular SPMI * bus instance * @apid_count: on v5 and v7: number of APIDs associated with the * particular SPMI bus instance * @mapping_table: in-memory copy of PPID -> APID mapping table. - * @domain: irq domain object for PMIC IRQ domain - * @spmic: SPMI controller object - * @ver_ops: version dependent operations. + * @mapping_table_valid:bitmap containing valid-only periphs * @ppid_to_apid: in-memory copy of PPID -> APID mapping table. * @last_apid: Highest value APID in use * @apid_data: Table of data for all APIDs - * @max_periphs: Number of elements in apid_data[] + * @min_apid: minimum APID (used for bounding IRQ search) + * @max_apid: maximum APID + * @irq: PMIC ARB interrupt. + * @id: unique ID of the bus */ -struct spmi_pmic_arb { - void __iomem *rd_base; - void __iomem *wr_base; +struct spmi_pmic_arb_bus { + struct spmi_pmic_arb *pmic_arb; + struct irq_domain *domain; void __iomem *intr; void __iomem *cnfg; - void __iomem *core; - resource_size_t core_size; + struct spmi_controller *spmic; raw_spinlock_t lock; - u8 channel; - int irq; - u8 ee; - u32 bus_instance; - u16 min_apid; - u16 max_apid; u16 base_apid; int apid_count; u32 *mapping_table; DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS); - struct irq_domain *domain; - struct spmi_controller *spmic; - const struct pmic_arb_ver_ops *ver_ops; u16 *ppid_to_apid; u16 last_apid; struct apid_data *apid_data; + u16 min_apid; + u16 max_apid; + int irq; + u8 id; +}; + +/** + * struct spmi_pmic_arb - SPMI PMIC Arbiter object + * + * @rd_base: on v1 "core", on v2 "observer" register base off DT. + * @wr_base: on v1 "core", on v2 "chnls" register base off DT. + * @core: core register base for v2 and above only (see above) + * @core_size: core register base size + * @channel: execution environment channel to use for accesses. + * @ee: the current Execution Environment + * @ver_ops: version dependent operations. + * @max_periphs: Number of elements in apid_data[] + * @buses: per arbiter buses instances + * @buses_available: number of buses registered + */ +struct spmi_pmic_arb { + void __iomem *rd_base; + void __iomem *wr_base; + void __iomem *core; + resource_size_t core_size; + u8 channel; + u8 ee; + const struct pmic_arb_ver_ops *ver_ops; int max_periphs; + struct spmi_pmic_arb_bus *buses[PMIC_ARB_MAX_BUSES]; + int buses_available; }; /** * struct pmic_arb_ver_ops - version dependent functionality. * * @ver_str: version string. + * @get_core_resources: initializes the core, observer and channels + * @init_apid: finds the apid base and count * @ppid_to_apid: finds the apid for a given ppid. * @non_data_cmd: on v1 issues an spmi non-data command. * on v2 no HW support, returns -EOPNOTSUPP. @@ -202,20 +226,22 @@ struct spmi_pmic_arb { */ struct pmic_arb_ver_ops { const char *ver_str; - int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid); + int (*get_core_resources)(struct platform_device *pdev, void __iomem *core); + int (*init_apid)(struct spmi_pmic_arb_bus *bus, int index); + int (*ppid_to_apid)(struct spmi_pmic_arb_bus *bus, u16 ppid); /* spmi commands (read_cmd, write_cmd, cmd) functionality */ - int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, - enum pmic_arb_channel ch_type); + int (*offset)(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr, + enum pmic_arb_channel ch_type); u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc); int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid); /* Interrupts controller functionality (offset of PIC registers) */ - void __iomem *(*owner_acc_status)(struct spmi_pmic_arb *pmic_arb, u8 m, + void __iomem *(*owner_acc_status)(struct spmi_pmic_arb_bus *bus, u8 m, u16 n); - void __iomem *(*acc_enable)(struct spmi_pmic_arb *pmic_arb, u16 n); - void __iomem *(*irq_status)(struct spmi_pmic_arb *pmic_arb, u16 n); - void __iomem *(*irq_clear)(struct spmi_pmic_arb *pmic_arb, u16 n); + void __iomem *(*acc_enable)(struct spmi_pmic_arb_bus *bus, u16 n); + void __iomem *(*irq_status)(struct spmi_pmic_arb_bus *bus, u16 n); + void __iomem *(*irq_clear)(struct spmi_pmic_arb_bus *bus, u16 n); u32 (*apid_map_offset)(u16 n); - void __iomem *(*apid_owner)(struct spmi_pmic_arb *pmic_arb, u16 n); + void __iomem *(*apid_owner)(struct spmi_pmic_arb_bus *bus, u16 n); }; static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb, @@ -232,6 +258,7 @@ static inline void pmic_arb_set_rd_cmd(struct spmi_pmic_arb *pmic_arb, /** * pmic_arb_read_data: reads pmic-arb's register and copy 1..4 bytes to buf + * @pmic_arb: the SPMI PMIC arbiter * @bc: byte count -1. range: 0..3 * @reg: register's address * @buf: output parameter, length must be bc + 1 @@ -246,6 +273,7 @@ pmic_arb_read_data(struct spmi_pmic_arb *pmic_arb, u8 *buf, u32 reg, u8 bc) /** * pmic_arb_write_data: write 1..4 bytes from buf to pmic-arb's register + * @pmic_arb: the SPMI PMIC arbiter * @bc: byte-count -1. range: 0..3. * @reg: register's address. * @buf: buffer to write. length must be bc + 1. @@ -263,13 +291,14 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl, void __iomem *base, u8 sid, u16 addr, enum pmic_arb_channel ch_type) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u32 status = 0; u32 timeout = PMIC_ARB_TIMEOUT_US; u32 offset; int rc; - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, ch_type); + rc = pmic_arb->ver_ops->offset(bus, sid, addr, ch_type); if (rc < 0) return rc; @@ -287,8 +316,8 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl, } if (status & PMIC_ARB_STATUS_FAILURE) { - dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x)\n", - __func__, sid, addr, status); + dev_err(&ctrl->dev, "%s: %#x %#x: transaction failed (%#x) reg: 0x%x\n", + __func__, sid, addr, status, offset); WARN_ON(1); return -EIO; } @@ -304,32 +333,33 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl, udelay(1); } - dev_err(&ctrl->dev, "%s: %#x %#x: timeout, status %#x\n", - __func__, sid, addr, status); + dev_err(&ctrl->dev, "%s: %#x %#x %#x: timeout, status %#x\n", + __func__, bus->id, sid, addr, status); return -ETIMEDOUT; } static int pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; unsigned long flags; u32 cmd; int rc; u32 offset; - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, PMIC_ARB_CHANNEL_RW); + rc = pmic_arb->ver_ops->offset(bus, sid, 0, PMIC_ARB_CHANNEL_RW); if (rc < 0) return rc; offset = rc; cmd = ((opc | 0x40) << 27) | ((sid & 0xf) << 20); - raw_spin_lock_irqsave(&pmic_arb->lock, flags); + raw_spin_lock_irqsave(&bus->lock, flags); pmic_arb_base_write(pmic_arb, offset + PMIC_ARB_CMD, cmd); rc = pmic_arb_wait_for_done(ctrl, pmic_arb->wr_base, sid, 0, PMIC_ARB_CHANNEL_RW); - raw_spin_unlock_irqrestore(&pmic_arb->lock, flags); + raw_spin_unlock_irqrestore(&bus->lock, flags); return rc; } @@ -354,20 +384,21 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid) return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid); } -static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, u8 sid, +static int pmic_arb_fmt_read_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid, u16 addr, size_t len, u32 *cmd, u32 *offset) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u8 bc = len - 1; int rc; - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, + rc = pmic_arb->ver_ops->offset(bus, sid, addr, PMIC_ARB_CHANNEL_OBS); if (rc < 0) return rc; *offset = rc; if (bc >= PMIC_ARB_MAX_TRANS_BYTES) { - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested", + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested", PMIC_ARB_MAX_TRANS_BYTES, len); return -EINVAL; } @@ -391,7 +422,8 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd, u32 offset, u8 sid, u16 addr, u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u8 bc = len - 1; int rc; @@ -413,38 +445,39 @@ static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd, static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid, u16 addr, u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); unsigned long flags; u32 cmd, offset; int rc; - rc = pmic_arb_fmt_read_cmd(pmic_arb, opc, sid, addr, len, &cmd, + rc = pmic_arb_fmt_read_cmd(bus, opc, sid, addr, len, &cmd, &offset); if (rc) return rc; - raw_spin_lock_irqsave(&pmic_arb->lock, flags); + raw_spin_lock_irqsave(&bus->lock, flags); rc = pmic_arb_read_cmd_unlocked(ctrl, cmd, offset, sid, addr, buf, len); - raw_spin_unlock_irqrestore(&pmic_arb->lock, flags); + raw_spin_unlock_irqrestore(&bus->lock, flags); return rc; } -static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb *pmic_arb, u8 opc, +static int pmic_arb_fmt_write_cmd(struct spmi_pmic_arb_bus *bus, u8 opc, u8 sid, u16 addr, size_t len, u32 *cmd, u32 *offset) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u8 bc = len - 1; int rc; - rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, + rc = pmic_arb->ver_ops->offset(bus, sid, addr, PMIC_ARB_CHANNEL_RW); if (rc < 0) return rc; *offset = rc; if (bc >= PMIC_ARB_MAX_TRANS_BYTES) { - dev_err(&pmic_arb->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested", + dev_err(&bus->spmic->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested", PMIC_ARB_MAX_TRANS_BYTES, len); return -EINVAL; } @@ -470,7 +503,8 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd, u32 offset, u8 sid, u16 addr, const u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u8 bc = len - 1; /* Write data to FIFOs */ @@ -489,20 +523,20 @@ static int pmic_arb_write_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd, static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid, u16 addr, const u8 *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); unsigned long flags; u32 cmd, offset; int rc; - rc = pmic_arb_fmt_write_cmd(pmic_arb, opc, sid, addr, len, &cmd, + rc = pmic_arb_fmt_write_cmd(bus, opc, sid, addr, len, &cmd, &offset); if (rc) return rc; - raw_spin_lock_irqsave(&pmic_arb->lock, flags); + raw_spin_lock_irqsave(&bus->lock, flags); rc = pmic_arb_write_cmd_unlocked(ctrl, cmd, offset, sid, addr, buf, len); - raw_spin_unlock_irqrestore(&pmic_arb->lock, flags); + raw_spin_unlock_irqrestore(&bus->lock, flags); return rc; } @@ -510,23 +544,23 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid, static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16 addr, const u8 *buf, const u8 *mask, size_t len) { - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); + struct spmi_pmic_arb_bus *bus = spmi_controller_get_drvdata(ctrl); u32 read_cmd, read_offset, write_cmd, write_offset; u8 temp[PMIC_ARB_MAX_TRANS_BYTES]; unsigned long flags; int rc, i; - rc = pmic_arb_fmt_read_cmd(pmic_arb, SPMI_CMD_EXT_READL, sid, addr, len, + rc = pmic_arb_fmt_read_cmd(bus, SPMI_CMD_EXT_READL, sid, addr, len, &read_cmd, &read_offset); if (rc) return rc; - rc = pmic_arb_fmt_write_cmd(pmic_arb, SPMI_CMD_EXT_WRITEL, sid, addr, + rc = pmic_arb_fmt_write_cmd(bus, SPMI_CMD_EXT_WRITEL, sid, addr, len, &write_cmd, &write_offset); if (rc) return rc; - raw_spin_lock_irqsave(&pmic_arb->lock, flags); + raw_spin_lock_irqsave(&bus->lock, flags); rc = pmic_arb_read_cmd_unlocked(ctrl, read_cmd, read_offset, sid, addr, temp, len); if (rc) @@ -538,7 +572,7 @@ static int pmic_arb_masked_write(struct spmi_controller *ctrl, u8 sid, u16 addr, rc = pmic_arb_write_cmd_unlocked(ctrl, write_cmd, write_offset, sid, addr, temp, len); done: - raw_spin_unlock_irqrestore(&pmic_arb->lock, flags); + raw_spin_unlock_irqrestore(&bus->lock, flags); return rc; } @@ -564,25 +598,25 @@ struct spmi_pmic_arb_qpnpint_type { static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); u8 sid = hwirq_to_sid(d->hwirq); u8 per = hwirq_to_per(d->hwirq); - if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid, + if (pmic_arb_write_cmd(bus->spmic, SPMI_CMD_EXT_WRITEL, sid, (per << 8) + reg, buf, len)) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n", + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n", d->irq); } static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); u8 sid = hwirq_to_sid(d->hwirq); u8 per = hwirq_to_per(d->hwirq); - if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid, + if (pmic_arb_read_cmd(bus->spmic, SPMI_CMD_EXT_READL, sid, (per << 8) + reg, buf, len)) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n", + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x\n", d->irq); } @@ -590,47 +624,49 @@ static int qpnpint_spmi_masked_write(struct irq_data *d, u8 reg, const void *buf, const void *mask, size_t len) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); u8 sid = hwirq_to_sid(d->hwirq); u8 per = hwirq_to_per(d->hwirq); int rc; - rc = pmic_arb_masked_write(pmic_arb->spmic, sid, (per << 8) + reg, buf, + rc = pmic_arb_masked_write(bus->spmic, sid, (per << 8) + reg, buf, mask, len); if (rc) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x rc=%d\n", + dev_err_ratelimited(&bus->spmic->dev, "failed irqchip transaction on %x rc=%d\n", d->irq, rc); return rc; } -static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id) +static void cleanup_irq(struct spmi_pmic_arb_bus *bus, u16 apid, int id) { - u16 ppid = pmic_arb->apid_data[apid].ppid; + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; + u16 ppid = bus->apid_data[apid].ppid; u8 sid = ppid >> 8; u8 per = ppid & 0xFF; u8 irq_mask = BIT(id); - dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n", - __func__, apid, sid, per, id); - writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid)); + dev_err_ratelimited(&bus->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n", + __func__, apid, sid, per, id); + writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(bus, apid)); } -static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) +static int periph_interrupt(struct spmi_pmic_arb_bus *bus, u16 apid) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; unsigned int irq; u32 status, id; int handled = 0; - u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF; - u8 per = pmic_arb->apid_data[apid].ppid & 0xFF; + u8 sid = (bus->apid_data[apid].ppid >> 8) & 0xF; + u8 per = bus->apid_data[apid].ppid & 0xFF; - status = readl_relaxed(pmic_arb->ver_ops->irq_status(pmic_arb, apid)); + status = readl_relaxed(pmic_arb->ver_ops->irq_status(bus, apid)); while (status) { id = ffs(status) - 1; status &= ~BIT(id); - irq = irq_find_mapping(pmic_arb->domain, - spec_to_hwirq(sid, per, id, apid)); + irq = irq_find_mapping(bus->domain, + spec_to_hwirq(sid, per, id, apid)); if (irq == 0) { - cleanup_irq(pmic_arb, apid, id); + cleanup_irq(bus, apid, id); continue; } generic_handle_irq(irq); @@ -642,16 +678,17 @@ static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) static void pmic_arb_chained_irq(struct irq_desc *desc) { - struct spmi_pmic_arb *pmic_arb = irq_desc_get_handler_data(desc); + struct spmi_pmic_arb_bus *bus = irq_desc_get_handler_data(desc); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops; struct irq_chip *chip = irq_desc_get_chip(desc); - int first = pmic_arb->min_apid; - int last = pmic_arb->max_apid; + int first = bus->min_apid; + int last = bus->max_apid; /* * acc_offset will be non-zero for the secondary SPMI bus instance on * v7 controllers. */ - int acc_offset = pmic_arb->base_apid >> 5; + int acc_offset = bus->base_apid >> 5; u8 ee = pmic_arb->ee; u32 status, enable, handled = 0; int i, id, apid; @@ -662,7 +699,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) chained_irq_enter(chip, desc); for (i = first >> 5; i <= last >> 5; ++i) { - status = readl_relaxed(ver_ops->owner_acc_status(pmic_arb, ee, i - acc_offset)); + status = readl_relaxed(ver_ops->owner_acc_status(bus, ee, i - acc_offset)); if (status) acc_valid = true; @@ -676,9 +713,9 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) continue; } enable = readl_relaxed( - ver_ops->acc_enable(pmic_arb, apid)); + ver_ops->acc_enable(bus, apid)); if (enable & SPMI_PIC_ACC_ENABLE_BIT) - if (periph_interrupt(pmic_arb, apid) != 0) + if (periph_interrupt(bus, apid) != 0) handled++; } } @@ -687,19 +724,19 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) if (!acc_valid) { for (i = first; i <= last; i++) { /* skip if APPS is not irq owner */ - if (pmic_arb->apid_data[i].irq_ee != pmic_arb->ee) + if (bus->apid_data[i].irq_ee != pmic_arb->ee) continue; irq_status = readl_relaxed( - ver_ops->irq_status(pmic_arb, i)); + ver_ops->irq_status(bus, i)); if (irq_status) { enable = readl_relaxed( - ver_ops->acc_enable(pmic_arb, i)); + ver_ops->acc_enable(bus, i)); if (enable & SPMI_PIC_ACC_ENABLE_BIT) { - dev_dbg(&pmic_arb->spmic->dev, + dev_dbg(&bus->spmic->dev, "Dispatching IRQ for apid=%d status=%x\n", i, irq_status); - if (periph_interrupt(pmic_arb, i) != 0) + if (periph_interrupt(bus, i) != 0) handled++; } } @@ -714,12 +751,13 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) static void qpnpint_irq_ack(struct irq_data *d) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u8 irq = hwirq_to_irq(d->hwirq); u16 apid = hwirq_to_apid(d->hwirq); u8 data; - writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(pmic_arb, apid)); + writel_relaxed(BIT(irq), pmic_arb->ver_ops->irq_clear(bus, apid)); data = BIT(irq); qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1); @@ -735,14 +773,15 @@ static void qpnpint_irq_mask(struct irq_data *d) static void qpnpint_irq_unmask(struct irq_data *d) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops; u8 irq = hwirq_to_irq(d->hwirq); u16 apid = hwirq_to_apid(d->hwirq); u8 buf[2]; writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT, - ver_ops->acc_enable(pmic_arb, apid)); + ver_ops->acc_enable(bus, apid)); qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1); if (!(buf[0] & BIT(irq))) { @@ -799,9 +838,9 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type) static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); - return irq_set_irq_wake(pmic_arb->irq, on); + return irq_set_irq_wake(bus->irq, on); } static int qpnpint_get_irqchip_state(struct irq_data *d, @@ -823,17 +862,18 @@ static int qpnpint_get_irqchip_state(struct irq_data *d, static int qpnpint_irq_domain_activate(struct irq_domain *domain, struct irq_data *d, bool reserve) { - struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb_bus *bus = irq_data_get_irq_chip_data(d); + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u16 periph = hwirq_to_per(d->hwirq); u16 apid = hwirq_to_apid(d->hwirq); u16 sid = hwirq_to_sid(d->hwirq); u16 irq = hwirq_to_irq(d->hwirq); u8 buf; - if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) { - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n", + if (bus->apid_data[apid].irq_ee != pmic_arb->ee) { + dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n", sid, periph, irq, pmic_arb->ee, - pmic_arb->apid_data[apid].irq_ee); + bus->apid_data[apid].irq_ee); return -ENODEV; } @@ -860,15 +900,16 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d, unsigned long *out_hwirq, unsigned int *out_type) { - struct spmi_pmic_arb *pmic_arb = d->host_data; + struct spmi_pmic_arb_bus *bus = d->host_data; + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u32 *intspec = fwspec->param; u16 apid, ppid; int rc; - dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n", + dev_dbg(&bus->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n", intspec[0], intspec[1], intspec[2]); - if (irq_domain_get_of_node(d) != pmic_arb->spmic->dev.of_node) + if (irq_domain_get_of_node(d) != bus->spmic->dev.of_node) return -EINVAL; if (fwspec->param_count != 4) return -EINVAL; @@ -876,37 +917,37 @@ static int qpnpint_irq_domain_translate(struct irq_domain *d, return -EINVAL; ppid = intspec[0] << 8 | intspec[1]; - rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid); + rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid); if (rc < 0) { - dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n", - intspec[0], intspec[1], intspec[2], rc); + dev_err(&bus->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u rc = %d\n", + intspec[0], intspec[1], intspec[2], rc); return rc; } apid = rc; /* Keep track of {max,min}_apid for bounding search during interrupt */ - if (apid > pmic_arb->max_apid) - pmic_arb->max_apid = apid; - if (apid < pmic_arb->min_apid) - pmic_arb->min_apid = apid; + if (apid > bus->max_apid) + bus->max_apid = apid; + if (apid < bus->min_apid) + bus->min_apid = apid; *out_hwirq = spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid); *out_type = intspec[3] & IRQ_TYPE_SENSE_MASK; - dev_dbg(&pmic_arb->spmic->dev, "out_hwirq = %lu\n", *out_hwirq); + dev_dbg(&bus->spmic->dev, "out_hwirq = %lu\n", *out_hwirq); return 0; } static struct lock_class_key qpnpint_irq_lock_class, qpnpint_irq_request_class; -static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb, +static void qpnpint_irq_domain_map(struct spmi_pmic_arb_bus *bus, struct irq_domain *domain, unsigned int virq, irq_hw_number_t hwirq, unsigned int type) { irq_flow_handler_t handler; - dev_dbg(&pmic_arb->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n", + dev_dbg(&bus->spmic->dev, "virq = %u, hwirq = %lu, type = %u\n", virq, hwirq, type); if (type & IRQ_TYPE_EDGE_BOTH) @@ -917,7 +958,7 @@ static void qpnpint_irq_domain_map(struct spmi_pmic_arb *pmic_arb, irq_set_lockdep_class(virq, &qpnpint_irq_lock_class, &qpnpint_irq_request_class); - irq_domain_set_info(domain, virq, hwirq, &pmic_arb_irqchip, pmic_arb, + irq_domain_set_info(domain, virq, hwirq, &pmic_arb_irqchip, bus, handler, NULL, NULL); } @@ -925,7 +966,7 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs, void *data) { - struct spmi_pmic_arb *pmic_arb = domain->host_data; + struct spmi_pmic_arb_bus *bus = domain->host_data; struct irq_fwspec *fwspec = data; irq_hw_number_t hwirq; unsigned int type; @@ -936,29 +977,77 @@ static int qpnpint_irq_domain_alloc(struct irq_domain *domain, return ret; for (i = 0; i < nr_irqs; i++) - qpnpint_irq_domain_map(pmic_arb, domain, virq + i, hwirq + i, + qpnpint_irq_domain_map(bus, domain, virq + i, hwirq + i, type); return 0; } -static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid) +static int pmic_arb_init_apid_min_max(struct spmi_pmic_arb_bus *bus) { - u32 *mapping_table = pmic_arb->mapping_table; + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; + + /* + * Initialize max_apid/min_apid to the opposite bounds, during + * the irq domain translation, we are sure to update these + */ + bus->max_apid = 0; + bus->min_apid = pmic_arb->max_periphs - 1; + + return 0; +} + +static int pmic_arb_get_core_resources_v1(struct platform_device *pdev, + void __iomem *core) +{ + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev); + + pmic_arb->wr_base = core; + pmic_arb->rd_base = core; + + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS; + + return 0; +} + +static int pmic_arb_init_apid_v1(struct spmi_pmic_arb_bus *bus, int index) +{ + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; + u32 *mapping_table; + + if (index) { + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n", + index); + return -EINVAL; + } + + mapping_table = devm_kcalloc(&bus->spmic->dev, pmic_arb->max_periphs, + sizeof(*mapping_table), GFP_KERNEL); + if (!mapping_table) + return -ENOMEM; + + bus->mapping_table = mapping_table; + + return pmic_arb_init_apid_min_max(bus); +} + +static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb_bus *bus, u16 ppid) +{ + u32 *mapping_table = bus->mapping_table; int index = 0, i; u16 apid_valid; u16 apid; u32 data; - apid_valid = pmic_arb->ppid_to_apid[ppid]; + apid_valid = bus->ppid_to_apid[ppid]; if (apid_valid & PMIC_ARB_APID_VALID) { apid = apid_valid & ~PMIC_ARB_APID_VALID; return apid; } for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) { - if (!test_and_set_bit(index, pmic_arb->mapping_table_valid)) - mapping_table[index] = readl_relaxed(pmic_arb->cnfg + + if (!test_and_set_bit(index, bus->mapping_table_valid)) + mapping_table[index] = readl_relaxed(bus->cnfg + SPMI_MAPPING_TABLE_REG(index)); data = mapping_table[index]; @@ -968,9 +1057,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid) index = SPMI_MAPPING_BIT_IS_1_RESULT(data); } else { apid = SPMI_MAPPING_BIT_IS_1_RESULT(data); - pmic_arb->ppid_to_apid[ppid] + bus->ppid_to_apid[ppid] = apid | PMIC_ARB_APID_VALID; - pmic_arb->apid_data[apid].ppid = ppid; + bus->apid_data[apid].ppid = ppid; return apid; } } else { @@ -978,9 +1067,9 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid) index = SPMI_MAPPING_BIT_IS_0_RESULT(data); } else { apid = SPMI_MAPPING_BIT_IS_0_RESULT(data); - pmic_arb->ppid_to_apid[ppid] + bus->ppid_to_apid[ppid] = apid | PMIC_ARB_APID_VALID; - pmic_arb->apid_data[apid].ppid = ppid; + bus->apid_data[apid].ppid = ppid; return apid; } } @@ -990,24 +1079,26 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid) } /* v1 offset per ee */ -static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v1(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return 0x800 + 0x80 * pmic_arb->channel; } -static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid) +static u16 pmic_arb_find_apid(struct spmi_pmic_arb_bus *bus, u16 ppid) { - struct apid_data *apidd = &pmic_arb->apid_data[pmic_arb->last_apid]; + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; + struct apid_data *apidd = &bus->apid_data[bus->last_apid]; u32 regval, offset; u16 id, apid; - for (apid = pmic_arb->last_apid; ; apid++, apidd++) { + for (apid = bus->last_apid; ; apid++, apidd++) { offset = pmic_arb->ver_ops->apid_map_offset(apid); if (offset >= pmic_arb->core_size) break; - regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb, + regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, apid)); apidd->irq_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval); apidd->write_ee = apidd->irq_ee; @@ -1017,33 +1108,61 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid) continue; id = (regval >> 8) & PMIC_ARB_PPID_MASK; - pmic_arb->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID; + bus->ppid_to_apid[id] = apid | PMIC_ARB_APID_VALID; apidd->ppid = id; if (id == ppid) { apid |= PMIC_ARB_APID_VALID; break; } } - pmic_arb->last_apid = apid & ~PMIC_ARB_APID_VALID; + bus->last_apid = apid & ~PMIC_ARB_APID_VALID; return apid; } -static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid) +static int pmic_arb_get_obsrvr_chnls_v2(struct platform_device *pdev) +{ + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev); + + pmic_arb->rd_base = devm_platform_ioremap_resource_byname(pdev, "obsrvr"); + if (IS_ERR(pmic_arb->rd_base)) + return PTR_ERR(pmic_arb->rd_base); + + pmic_arb->wr_base = devm_platform_ioremap_resource_byname(pdev, "chnls"); + if (IS_ERR(pmic_arb->wr_base)) + return PTR_ERR(pmic_arb->wr_base); + + return 0; +} + +static int pmic_arb_get_core_resources_v2(struct platform_device *pdev, + void __iomem *core) +{ + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev); + + pmic_arb->core = core; + + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS; + + return pmic_arb_get_obsrvr_chnls_v2(pdev); +} + +static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb_bus *bus, u16 ppid) { u16 apid_valid; - apid_valid = pmic_arb->ppid_to_apid[ppid]; + apid_valid = bus->ppid_to_apid[ppid]; if (!(apid_valid & PMIC_ARB_APID_VALID)) - apid_valid = pmic_arb_find_apid(pmic_arb, ppid); + apid_valid = pmic_arb_find_apid(bus, ppid); if (!(apid_valid & PMIC_ARB_APID_VALID)) return -ENODEV; return apid_valid & ~PMIC_ARB_APID_VALID; } -static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb) +static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb_bus *bus) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; struct apid_data *apidd; struct apid_data *prev_apidd; u16 i, apid, ppid, apid_max; @@ -1065,9 +1184,9 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb) * where N = number of APIDs supported by the primary bus and * M = number of APIDs supported by the secondary bus */ - apidd = &pmic_arb->apid_data[pmic_arb->base_apid]; - apid_max = pmic_arb->base_apid + pmic_arb->apid_count; - for (i = pmic_arb->base_apid; i < apid_max; i++, apidd++) { + apidd = &bus->apid_data[bus->base_apid]; + apid_max = bus->base_apid + bus->apid_count; + for (i = bus->base_apid; i < apid_max; i++, apidd++) { offset = pmic_arb->ver_ops->apid_map_offset(i); if (offset >= pmic_arb->core_size) break; @@ -1078,19 +1197,18 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb) ppid = (regval >> 8) & PMIC_ARB_PPID_MASK; is_irq_ee = PMIC_ARB_CHAN_IS_IRQ_OWNER(regval); - regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(pmic_arb, - i)); + regval = readl_relaxed(pmic_arb->ver_ops->apid_owner(bus, i)); apidd->write_ee = SPMI_OWNERSHIP_PERIPH2OWNER(regval); apidd->irq_ee = is_irq_ee ? apidd->write_ee : INVALID_EE; - valid = pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID; - apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; - prev_apidd = &pmic_arb->apid_data[apid]; + valid = bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID; + apid = bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; + prev_apidd = &bus->apid_data[apid]; if (!valid || apidd->write_ee == pmic_arb->ee) { /* First PPID mapping or one for this EE */ - pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID; + bus->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID; } else if (valid && is_irq_ee && prev_apidd->write_ee == pmic_arb->ee) { /* @@ -1101,42 +1219,43 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb) } apidd->ppid = ppid; - pmic_arb->last_apid = i; + bus->last_apid = i; } /* Dump the mapping table for debug purposes. */ - dev_dbg(&pmic_arb->spmic->dev, "PPID APID Write-EE IRQ-EE\n"); + dev_dbg(&bus->spmic->dev, "PPID APID Write-EE IRQ-EE\n"); for (ppid = 0; ppid < PMIC_ARB_MAX_PPID; ppid++) { - apid = pmic_arb->ppid_to_apid[ppid]; + apid = bus->ppid_to_apid[ppid]; if (apid & PMIC_ARB_APID_VALID) { apid &= ~PMIC_ARB_APID_VALID; - apidd = &pmic_arb->apid_data[apid]; - dev_dbg(&pmic_arb->spmic->dev, "%#03X %3u %2u %2u\n", - ppid, apid, apidd->write_ee, apidd->irq_ee); + apidd = &bus->apid_data[apid]; + dev_dbg(&bus->spmic->dev, "%#03X %3u %2u %2u\n", + ppid, apid, apidd->write_ee, apidd->irq_ee); } } return 0; } -static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb *pmic_arb, u16 ppid) +static int pmic_arb_ppid_to_apid_v5(struct spmi_pmic_arb_bus *bus, u16 ppid) { - if (!(pmic_arb->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID)) + if (!(bus->ppid_to_apid[ppid] & PMIC_ARB_APID_VALID)) return -ENODEV; - return pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; + return bus->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID; } /* v2 offset per ppid and per ee */ -static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v2(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u16 apid; u16 ppid; int rc; ppid = sid << 8 | ((addr >> 8) & 0xFF); - rc = pmic_arb_ppid_to_apid_v2(pmic_arb, ppid); + rc = pmic_arb_ppid_to_apid_v2(bus, ppid); if (rc < 0) return rc; @@ -1144,19 +1263,55 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, return 0x1000 * pmic_arb->ee + 0x8000 * apid; } +static int pmic_arb_init_apid_v5(struct spmi_pmic_arb_bus *bus, int index) +{ + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; + int ret; + + if (index) { + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n", + index); + return -EINVAL; + } + + bus->base_apid = 0; + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) & + PMIC_ARB_FEATURES_PERIPH_MASK; + + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) { + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n", + bus->base_apid + bus->apid_count); + return -EINVAL; + } + + ret = pmic_arb_init_apid_min_max(bus); + if (ret) + return ret; + + ret = pmic_arb_read_apid_map_v5(bus); + if (ret) { + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n", + ret); + return ret; + } + + return 0; +} + /* * v5 offset per ee and per apid for observer channels and per apid for * read/write channels. */ -static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v5(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u16 apid; int rc; u32 offset = 0; u16 ppid = (sid << 8) | (addr >> 8); - rc = pmic_arb_ppid_to_apid_v5(pmic_arb, ppid); + rc = pmic_arb_ppid_to_apid_v5(bus, ppid); if (rc < 0) return rc; @@ -1166,8 +1321,8 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, offset = 0x10000 * pmic_arb->ee + 0x80 * apid; break; case PMIC_ARB_CHANNEL_RW: - if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) { - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n", + if (bus->apid_data[apid].write_ee != pmic_arb->ee) { + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n", sid, addr); return -EPERM; } @@ -1178,19 +1333,76 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, return offset; } +static int pmic_arb_get_core_resources_v7(struct platform_device *pdev, + void __iomem *core) +{ + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev); + + pmic_arb->core = core; + + pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7; + + return pmic_arb_get_obsrvr_chnls_v2(pdev); +} + +/* + * Only v7 supports 2 buses. Each bus will get a different apid count, read + * from different registers. + */ +static int pmic_arb_init_apid_v7(struct spmi_pmic_arb_bus *bus, int index) +{ + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; + int ret; + + if (index == 0) { + bus->base_apid = 0; + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) & + PMIC_ARB_FEATURES_PERIPH_MASK; + } else if (index == 1) { + bus->base_apid = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES) & + PMIC_ARB_FEATURES_PERIPH_MASK; + bus->apid_count = readl_relaxed(pmic_arb->core + PMIC_ARB_FEATURES1) & + PMIC_ARB_FEATURES_PERIPH_MASK; + } else { + dev_err(&bus->spmic->dev, "Unsupported buses count %d detected\n", + bus->id); + return -EINVAL; + } + + if (bus->base_apid + bus->apid_count > pmic_arb->max_periphs) { + dev_err(&bus->spmic->dev, "Unsupported APID count %d detected\n", + bus->base_apid + bus->apid_count); + return -EINVAL; + } + + ret = pmic_arb_init_apid_min_max(bus); + if (ret) + return ret; + + ret = pmic_arb_read_apid_map_v5(bus); + if (ret) { + dev_err(&bus->spmic->dev, "could not read APID->PPID mapping table, rc= %d\n", + ret); + return ret; + } + + return 0; +} + /* * v7 offset per ee and per apid for observer channels and per apid for * read/write channels. */ -static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, - enum pmic_arb_channel ch_type) +static int pmic_arb_offset_v7(struct spmi_pmic_arb_bus *bus, u8 sid, u16 addr, + enum pmic_arb_channel ch_type) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; u16 apid; int rc; u32 offset = 0; u16 ppid = (sid << 8) | (addr >> 8); - rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid); + rc = pmic_arb->ver_ops->ppid_to_apid(bus, ppid); if (rc < 0) return rc; @@ -1200,8 +1412,8 @@ static int pmic_arb_offset_v7(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, offset = 0x8000 * pmic_arb->ee + 0x20 * apid; break; case PMIC_ARB_CHANNEL_RW: - if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) { - dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n", + if (bus->apid_data[apid].write_ee != pmic_arb->ee) { + dev_err(&bus->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n", sid, addr); return -EPERM; } @@ -1223,104 +1435,110 @@ static u32 pmic_arb_fmt_cmd_v2(u8 opc, u8 sid, u16 addr, u8 bc) } static void __iomem * -pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v1(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x20 * m + 0x4 * n; + return bus->intr + 0x20 * m + 0x4 * n; } static void __iomem * -pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v2(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x100000 + 0x1000 * m + 0x4 * n; + return bus->intr + 0x100000 + 0x1000 * m + 0x4 * n; } static void __iomem * -pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v3(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x200000 + 0x1000 * m + 0x4 * n; + return bus->intr + 0x200000 + 0x1000 * m + 0x4 * n; } static void __iomem * -pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v5(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x10000 * m + 0x4 * n; + return bus->intr + 0x10000 * m + 0x4 * n; } static void __iomem * -pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb *pmic_arb, u8 m, u16 n) +pmic_arb_owner_acc_status_v7(struct spmi_pmic_arb_bus *bus, u8 m, u16 n) { - return pmic_arb->intr + 0x1000 * m + 0x4 * n; + return bus->intr + 0x1000 * m + 0x4 * n; } static void __iomem * -pmic_arb_acc_enable_v1(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v1(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x200 + 0x4 * n; + return bus->intr + 0x200 + 0x4 * n; } static void __iomem * -pmic_arb_acc_enable_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x1000 * n; + return bus->intr + 0x1000 * n; } static void __iomem * -pmic_arb_acc_enable_v5(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v5(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return pmic_arb->wr_base + 0x100 + 0x10000 * n; } static void __iomem * -pmic_arb_acc_enable_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_acc_enable_v7(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return pmic_arb->wr_base + 0x100 + 0x1000 * n; } static void __iomem * -pmic_arb_irq_status_v1(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v1(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x600 + 0x4 * n; + return bus->intr + 0x600 + 0x4 * n; } static void __iomem * -pmic_arb_irq_status_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x4 + 0x1000 * n; + return bus->intr + 0x4 + 0x1000 * n; } static void __iomem * -pmic_arb_irq_status_v5(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v5(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return pmic_arb->wr_base + 0x104 + 0x10000 * n; } static void __iomem * -pmic_arb_irq_status_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_status_v7(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return pmic_arb->wr_base + 0x104 + 0x1000 * n; } static void __iomem * -pmic_arb_irq_clear_v1(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v1(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0xA00 + 0x4 * n; + return bus->intr + 0xA00 + 0x4 * n; } static void __iomem * -pmic_arb_irq_clear_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->intr + 0x8 + 0x1000 * n; + return bus->intr + 0x8 + 0x1000 * n; } static void __iomem * -pmic_arb_irq_clear_v5(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v5(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return pmic_arb->wr_base + 0x108 + 0x10000 * n; } static void __iomem * -pmic_arb_irq_clear_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_irq_clear_v7(struct spmi_pmic_arb_bus *bus, u16 n) { + struct spmi_pmic_arb *pmic_arb = bus->pmic_arb; return pmic_arb->wr_base + 0x108 + 0x1000 * n; } @@ -1340,9 +1558,9 @@ static u32 pmic_arb_apid_map_offset_v7(u16 n) } static void __iomem * -pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_apid_owner_v2(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->cnfg + 0x700 + 0x4 * n; + return bus->cnfg + 0x700 + 0x4 * n; } /* @@ -1351,13 +1569,15 @@ pmic_arb_apid_owner_v2(struct spmi_pmic_arb *pmic_arb, u16 n) * 0. */ static void __iomem * -pmic_arb_apid_owner_v7(struct spmi_pmic_arb *pmic_arb, u16 n) +pmic_arb_apid_owner_v7(struct spmi_pmic_arb_bus *bus, u16 n) { - return pmic_arb->cnfg + 0x4 * (n - pmic_arb->base_apid); + return bus->cnfg + 0x4 * (n - bus->base_apid); } static const struct pmic_arb_ver_ops pmic_arb_v1 = { .ver_str = "v1", + .get_core_resources = pmic_arb_get_core_resources_v1, + .init_apid = pmic_arb_init_apid_v1, .ppid_to_apid = pmic_arb_ppid_to_apid_v1, .non_data_cmd = pmic_arb_non_data_cmd_v1, .offset = pmic_arb_offset_v1, @@ -1372,6 +1592,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v1 = { static const struct pmic_arb_ver_ops pmic_arb_v2 = { .ver_str = "v2", + .get_core_resources = pmic_arb_get_core_resources_v2, + .init_apid = pmic_arb_init_apid_v1, .ppid_to_apid = pmic_arb_ppid_to_apid_v2, .non_data_cmd = pmic_arb_non_data_cmd_v2, .offset = pmic_arb_offset_v2, @@ -1386,6 +1608,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v2 = { static const struct pmic_arb_ver_ops pmic_arb_v3 = { .ver_str = "v3", + .get_core_resources = pmic_arb_get_core_resources_v2, + .init_apid = pmic_arb_init_apid_v1, .ppid_to_apid = pmic_arb_ppid_to_apid_v2, .non_data_cmd = pmic_arb_non_data_cmd_v2, .offset = pmic_arb_offset_v2, @@ -1400,6 +1624,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v3 = { static const struct pmic_arb_ver_ops pmic_arb_v5 = { .ver_str = "v5", + .get_core_resources = pmic_arb_get_core_resources_v2, + .init_apid = pmic_arb_init_apid_v5, .ppid_to_apid = pmic_arb_ppid_to_apid_v5, .non_data_cmd = pmic_arb_non_data_cmd_v2, .offset = pmic_arb_offset_v5, @@ -1414,6 +1640,8 @@ static const struct pmic_arb_ver_ops pmic_arb_v5 = { static const struct pmic_arb_ver_ops pmic_arb_v7 = { .ver_str = "v7", + .get_core_resources = pmic_arb_get_core_resources_v7, + .init_apid = pmic_arb_init_apid_v7, .ppid_to_apid = pmic_arb_ppid_to_apid_v5, .non_data_cmd = pmic_arb_non_data_cmd_v2, .offset = pmic_arb_offset_v7, @@ -1433,145 +1661,181 @@ static const struct irq_domain_ops pmic_arb_irq_domain_ops = { .translate = qpnpint_irq_domain_translate, }; -static int spmi_pmic_arb_probe(struct platform_device *pdev) +static int spmi_pmic_arb_bus_init(struct platform_device *pdev, + struct device_node *node, + struct spmi_pmic_arb *pmic_arb) { - struct spmi_pmic_arb *pmic_arb; + int bus_index = pmic_arb->buses_available; + struct spmi_pmic_arb_bus *bus; + struct device *dev = &pdev->dev; struct spmi_controller *ctrl; - struct resource *res; - void __iomem *core; - u32 *mapping_table; - u32 channel, ee, hw_ver; - int err; + void __iomem *intr; + void __iomem *cnfg; + int index, ret; + int irq; - ctrl = devm_spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb)); + ctrl = devm_spmi_controller_alloc(dev, sizeof(*bus)); if (IS_ERR(ctrl)) return PTR_ERR(ctrl); - pmic_arb = spmi_controller_get_drvdata(ctrl); - pmic_arb->spmic = ctrl; + ctrl->cmd = pmic_arb_cmd; + ctrl->read_cmd = pmic_arb_read_cmd; + ctrl->write_cmd = pmic_arb_write_cmd; - /* - * Please don't replace this with devm_platform_ioremap_resource() or - * devm_ioremap_resource(). These both result in a call to - * devm_request_mem_region() which prevents multiple mappings of this - * register address range. SoCs with PMIC arbiter v7 may define two - * arbiter devices, for the two physical SPMI interfaces, which share - * some register address ranges (i.e. "core", "obsrvr", and "chnls"). - * Ensure that both devices probe successfully by calling devm_ioremap() - * which does not result in a devm_request_mem_region() call. - */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core"); - core = devm_ioremap(&ctrl->dev, res->start, resource_size(res)); - if (!core) - return -ENOMEM; + bus = spmi_controller_get_drvdata(ctrl); - pmic_arb->core_size = resource_size(res); + pmic_arb->buses[bus_index] = bus; + + raw_spin_lock_init(&bus->lock); - pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID, - sizeof(*pmic_arb->ppid_to_apid), - GFP_KERNEL); - if (!pmic_arb->ppid_to_apid) + bus->ppid_to_apid = devm_kcalloc(dev, PMIC_ARB_MAX_PPID, + sizeof(*bus->ppid_to_apid), + GFP_KERNEL); + if (!bus->ppid_to_apid) return -ENOMEM; - hw_ver = readl_relaxed(core + PMIC_ARB_VERSION); + bus->apid_data = devm_kcalloc(dev, pmic_arb->max_periphs, + sizeof(*bus->apid_data), + GFP_KERNEL); + if (!bus->apid_data) + return -ENOMEM; - if (hw_ver < PMIC_ARB_VERSION_V2_MIN) { - pmic_arb->ver_ops = &pmic_arb_v1; - pmic_arb->wr_base = core; - pmic_arb->rd_base = core; - } else { - pmic_arb->core = core; - - if (hw_ver < PMIC_ARB_VERSION_V3_MIN) - pmic_arb->ver_ops = &pmic_arb_v2; - else if (hw_ver < PMIC_ARB_VERSION_V5_MIN) - pmic_arb->ver_ops = &pmic_arb_v3; - else if (hw_ver < PMIC_ARB_VERSION_V7_MIN) - pmic_arb->ver_ops = &pmic_arb_v5; - else - pmic_arb->ver_ops = &pmic_arb_v7; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "obsrvr"); - pmic_arb->rd_base = devm_ioremap(&ctrl->dev, res->start, - resource_size(res)); - if (!pmic_arb->rd_base) - return -ENOMEM; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "chnls"); - pmic_arb->wr_base = devm_ioremap(&ctrl->dev, res->start, - resource_size(res)); - if (!pmic_arb->wr_base) - return -ENOMEM; + index = of_property_match_string(node, "reg-names", "cnfg"); + if (index < 0) { + dev_err(dev, "cnfg reg region missing"); + return -EINVAL; } - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS; + cnfg = devm_of_iomap(dev, node, index, NULL); + if (IS_ERR(cnfg)) + return PTR_ERR(cnfg); - if (hw_ver >= PMIC_ARB_VERSION_V7_MIN) { - pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS_V7; - /* Optional property for v7: */ - of_property_read_u32(pdev->dev.of_node, "qcom,bus-id", - &pmic_arb->bus_instance); - if (pmic_arb->bus_instance > 1) { - dev_err(&pdev->dev, "invalid bus instance (%u) specified\n", - pmic_arb->bus_instance); - return -EINVAL; - } + index = of_property_match_string(node, "reg-names", "intr"); + if (index < 0) { + dev_err(dev, "intr reg region missing"); + return -EINVAL; + } - if (pmic_arb->bus_instance == 0) { - pmic_arb->base_apid = 0; - pmic_arb->apid_count = - readl_relaxed(core + PMIC_ARB_FEATURES) & - PMIC_ARB_FEATURES_PERIPH_MASK; - } else { - pmic_arb->base_apid = - readl_relaxed(core + PMIC_ARB_FEATURES) & - PMIC_ARB_FEATURES_PERIPH_MASK; - pmic_arb->apid_count = - readl_relaxed(core + PMIC_ARB_FEATURES1) & - PMIC_ARB_FEATURES_PERIPH_MASK; - } + intr = devm_of_iomap(dev, node, index, NULL); + if (IS_ERR(intr)) + return PTR_ERR(intr); - if (pmic_arb->base_apid + pmic_arb->apid_count > pmic_arb->max_periphs) { - dev_err(&pdev->dev, "Unsupported APID count %d detected\n", - pmic_arb->base_apid + pmic_arb->apid_count); - return -EINVAL; - } - } else if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) { - pmic_arb->base_apid = 0; - pmic_arb->apid_count = readl_relaxed(core + PMIC_ARB_FEATURES) & - PMIC_ARB_FEATURES_PERIPH_MASK; + irq = of_irq_get_byname(node, "periph_irq"); + if (irq <= 0) + return irq ?: -ENXIO; - if (pmic_arb->apid_count > pmic_arb->max_periphs) { - dev_err(&pdev->dev, "Unsupported APID count %d detected\n", - pmic_arb->apid_count); - return -EINVAL; + bus->pmic_arb = pmic_arb; + bus->intr = intr; + bus->cnfg = cnfg; + bus->irq = irq; + bus->spmic = ctrl; + bus->id = bus_index; + + ret = pmic_arb->ver_ops->init_apid(bus, bus_index); + if (ret) + return ret; + + dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index); + + bus->domain = irq_domain_add_tree(dev->of_node, + &pmic_arb_irq_domain_ops, bus); + if (!bus->domain) { + dev_err(&pdev->dev, "unable to create irq_domain\n"); + return -ENOMEM; + } + + irq_set_chained_handler_and_data(bus->irq, + pmic_arb_chained_irq, bus); + + ctrl->dev.of_node = node; + dev_set_name(&ctrl->dev, "spmi-%d", bus_index); + + ret = devm_spmi_controller_add(dev, ctrl); + if (ret) + return ret; + + pmic_arb->buses_available++; + + return 0; +} + +static int spmi_pmic_arb_register_buses(struct spmi_pmic_arb *pmic_arb, + struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct device_node *child; + int ret; + + /* legacy mode doesn't provide child node for the bus */ + if (of_device_is_compatible(node, "qcom,spmi-pmic-arb")) + return spmi_pmic_arb_bus_init(pdev, node, pmic_arb); + + for_each_available_child_of_node(node, child) { + if (of_node_name_eq(child, "spmi")) { + ret = spmi_pmic_arb_bus_init(pdev, child, pmic_arb); + if (ret) + return ret; } } - pmic_arb->apid_data = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs, - sizeof(*pmic_arb->apid_data), - GFP_KERNEL); - if (!pmic_arb->apid_data) + return ret; +} + +static void spmi_pmic_arb_deregister_buses(struct spmi_pmic_arb *pmic_arb) +{ + int i; + + for (i = 0; i < pmic_arb->buses_available; i++) { + struct spmi_pmic_arb_bus *bus = pmic_arb->buses[i]; + + irq_set_chained_handler_and_data(bus->irq, + NULL, NULL); + irq_domain_remove(bus->domain); + } +} + +static int spmi_pmic_arb_probe(struct platform_device *pdev) +{ + struct spmi_pmic_arb *pmic_arb; + struct device *dev = &pdev->dev; + struct resource *res; + void __iomem *core; + u32 channel, ee, hw_ver; + int err; + + pmic_arb = devm_kzalloc(dev, sizeof(*pmic_arb), GFP_KERNEL); + if (!pmic_arb) return -ENOMEM; - dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n", - pmic_arb->ver_ops->ver_str, hw_ver); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core"); + core = devm_ioremap(dev, res->start, resource_size(res)); + if (!core) + return -ENOMEM; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr"); - pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res); - if (IS_ERR(pmic_arb->intr)) - return PTR_ERR(pmic_arb->intr); + pmic_arb->core_size = resource_size(res); + + platform_set_drvdata(pdev, pmic_arb); + + hw_ver = readl_relaxed(core + PMIC_ARB_VERSION); - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg"); - pmic_arb->cnfg = devm_ioremap_resource(&ctrl->dev, res); - if (IS_ERR(pmic_arb->cnfg)) - return PTR_ERR(pmic_arb->cnfg); + if (hw_ver < PMIC_ARB_VERSION_V2_MIN) + pmic_arb->ver_ops = &pmic_arb_v1; + else if (hw_ver < PMIC_ARB_VERSION_V3_MIN) + pmic_arb->ver_ops = &pmic_arb_v2; + else if (hw_ver < PMIC_ARB_VERSION_V5_MIN) + pmic_arb->ver_ops = &pmic_arb_v3; + else if (hw_ver < PMIC_ARB_VERSION_V7_MIN) + pmic_arb->ver_ops = &pmic_arb_v5; + else + pmic_arb->ver_ops = &pmic_arb_v7; + + err = pmic_arb->ver_ops->get_core_resources(pdev, core); + if (err) + return err; - pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq"); - if (pmic_arb->irq < 0) - return pmic_arb->irq; + dev_info(dev, "PMIC arbiter version %s (0x%x)\n", + pmic_arb->ver_ops->ver_str, hw_ver); err = of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel); if (err) { @@ -1599,66 +1863,20 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev) } pmic_arb->ee = ee; - mapping_table = devm_kcalloc(&ctrl->dev, pmic_arb->max_periphs, - sizeof(*mapping_table), GFP_KERNEL); - if (!mapping_table) - return -ENOMEM; - pmic_arb->mapping_table = mapping_table; - /* Initialize max_apid/min_apid to the opposite bounds, during - * the irq domain translation, we are sure to update these */ - pmic_arb->max_apid = 0; - pmic_arb->min_apid = pmic_arb->max_periphs - 1; - - platform_set_drvdata(pdev, ctrl); - raw_spin_lock_init(&pmic_arb->lock); - - ctrl->cmd = pmic_arb_cmd; - ctrl->read_cmd = pmic_arb_read_cmd; - ctrl->write_cmd = pmic_arb_write_cmd; - - if (hw_ver >= PMIC_ARB_VERSION_V5_MIN) { - err = pmic_arb_read_apid_map_v5(pmic_arb); - if (err) { - dev_err(&pdev->dev, "could not read APID->PPID mapping table, rc= %d\n", - err); - return err; - } - } - - dev_dbg(&pdev->dev, "adding irq domain\n"); - pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node, - &pmic_arb_irq_domain_ops, pmic_arb); - if (!pmic_arb->domain) { - dev_err(&pdev->dev, "unable to create irq_domain\n"); - return -ENOMEM; - } - - irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq, - pmic_arb); - err = spmi_controller_add(ctrl); - if (err) - goto err_domain_remove; - - return 0; - -err_domain_remove: - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); - irq_domain_remove(pmic_arb->domain); - return err; + return spmi_pmic_arb_register_buses(pmic_arb, pdev); } static void spmi_pmic_arb_remove(struct platform_device *pdev) { - struct spmi_controller *ctrl = platform_get_drvdata(pdev); - struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); - spmi_controller_remove(ctrl); - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); - irq_domain_remove(pmic_arb->domain); + struct spmi_pmic_arb *pmic_arb = platform_get_drvdata(pdev); + + spmi_pmic_arb_deregister_buses(pmic_arb); } static const struct of_device_id spmi_pmic_arb_match_table[] = { { .compatible = "qcom,spmi-pmic-arb", }, + { .compatible = "qcom,x1e80100-spmi-pmic-arb", }, {}, }; MODULE_DEVICE_TABLE(of, spmi_pmic_arb_match_table); diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c index 3a60fd2e09..667085cb19 100644 --- a/drivers/spmi/spmi.c +++ b/drivers/spmi/spmi.c @@ -378,7 +378,7 @@ static int spmi_drv_uevent(const struct device *dev, struct kobj_uevent_env *env return 0; } -static struct bus_type spmi_bus_type = { +static const struct bus_type spmi_bus_type = { .name = "spmi", .match = spmi_device_match, .probe = spmi_drv_probe, |