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-rw-r--r--drivers/pinctrl/qcom/pinctrl-msm.h157
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h
new file mode 100644
index 000000000..dd0d949f7
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-msm.h
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2013, Sony Mobile Communications AB.
+ */
+#ifndef __PINCTRL_MSM_H__
+#define __PINCTRL_MSM_H__
+
+struct pinctrl_pin_desc;
+
+/**
+ * struct msm_function - a pinmux function
+ * @name: Name of the pinmux function.
+ * @groups: List of pingroups for this function.
+ * @ngroups: Number of entries in @groups.
+ */
+struct msm_function {
+ const char *name;
+ const char * const *groups;
+ unsigned ngroups;
+};
+
+/**
+ * struct msm_pingroup - Qualcomm pingroup definition
+ * @name: Name of the pingroup.
+ * @pins: A list of pins assigned to this pingroup.
+ * @npins: Number of entries in @pins.
+ * @funcs: A list of pinmux functions that can be selected for
+ * this group. The index of the selected function is used
+ * for programming the function selector.
+ * Entries should be indices into the groups list of the
+ * struct msm_pinctrl_soc_data.
+ * @ctl_reg: Offset of the register holding control bits for this group.
+ * @io_reg: Offset of the register holding input/output bits for this group.
+ * @intr_cfg_reg: Offset of the register holding interrupt configuration bits.
+ * @intr_status_reg: Offset of the register holding the status bits for this group.
+ * @intr_target_reg: Offset of the register specifying routing of the interrupts
+ * from this group.
+ * @mux_bit: Offset in @ctl_reg for the pinmux function selection.
+ * @pull_bit: Offset in @ctl_reg for the bias configuration.
+ * @drv_bit: Offset in @ctl_reg for the drive strength configuration.
+ * @od_bit: Offset in @ctl_reg for controlling open drain.
+ * @oe_bit: Offset in @ctl_reg for controlling output enable.
+ * @in_bit: Offset in @io_reg for the input bit value.
+ * @out_bit: Offset in @io_reg for the output bit value.
+ * @intr_enable_bit: Offset in @intr_cfg_reg for enabling the interrupt for this group.
+ * @intr_status_bit: Offset in @intr_status_reg for reading and acking the interrupt
+ * status.
+ * @intr_target_bit: Offset in @intr_target_reg for configuring the interrupt routing.
+ * @intr_target_kpss_val: Value in @intr_target_bit for specifying that the interrupt from
+ * this gpio should get routed to the KPSS processor.
+ * @intr_raw_status_bit: Offset in @intr_cfg_reg for the raw status bit.
+ * @intr_polarity_bit: Offset in @intr_cfg_reg for specifying polarity of the interrupt.
+ * @intr_detection_bit: Offset in @intr_cfg_reg for specifying interrupt type.
+ * @intr_detection_width: Number of bits used for specifying interrupt type,
+ * Should be 2 for SoCs that can detect both edges in hardware,
+ * otherwise 1.
+ */
+struct msm_pingroup {
+ const char *name;
+ const unsigned *pins;
+ unsigned npins;
+
+ unsigned *funcs;
+ unsigned nfuncs;
+
+ u32 ctl_reg;
+ u32 io_reg;
+ u32 intr_cfg_reg;
+ u32 intr_status_reg;
+ u32 intr_target_reg;
+
+ unsigned int tile:2;
+
+ unsigned mux_bit:5;
+
+ unsigned pull_bit:5;
+ unsigned drv_bit:5;
+
+ unsigned od_bit:5;
+ unsigned egpio_enable:5;
+ unsigned egpio_present:5;
+ unsigned oe_bit:5;
+ unsigned in_bit:5;
+ unsigned out_bit:5;
+
+ unsigned intr_enable_bit:5;
+ unsigned intr_status_bit:5;
+ unsigned intr_ack_high:1;
+
+ unsigned intr_target_bit:5;
+ unsigned intr_target_kpss_val:5;
+ unsigned intr_raw_status_bit:5;
+ unsigned intr_polarity_bit:5;
+ unsigned intr_detection_bit:5;
+ unsigned intr_detection_width:5;
+};
+
+/**
+ * struct msm_gpio_wakeirq_map - Map of GPIOs and their wakeup pins
+ * @gpio: The GPIOs that are wakeup capable
+ * @wakeirq: The interrupt at the always-on interrupt controller
+ */
+struct msm_gpio_wakeirq_map {
+ unsigned int gpio;
+ unsigned int wakeirq;
+};
+
+/**
+ * struct msm_pinctrl_soc_data - Qualcomm pin controller driver configuration
+ * @pins: An array describing all pins the pin controller affects.
+ * @npins: The number of entries in @pins.
+ * @functions: An array describing all mux functions the SoC supports.
+ * @nfunctions: The number of entries in @functions.
+ * @groups: An array describing all pin groups the pin SoC supports.
+ * @ngroups: The numbmer of entries in @groups.
+ * @ngpio: The number of pingroups the driver should expose as GPIOs.
+ * @pull_no_keeper: The SoC does not support keeper bias.
+ * @wakeirq_map: The map of wakeup capable GPIOs and the pin at PDC/MPM
+ * @nwakeirq_map: The number of entries in @wakeirq_map
+ * @wakeirq_dual_edge_errata: If true then GPIOs using the wakeirq_map need
+ * to be aware that their parent can't handle dual
+ * edge interrupts.
+ * @gpio_func: Which function number is GPIO (usually 0).
+ * @egpio_func: If non-zero then this SoC supports eGPIO. Even though in
+ * hardware this is a mux 1-level above the TLMM, we'll treat
+ * it as if this is just another mux state of the TLMM. Since
+ * it doesn't really map to hardware, we'll allocate a virtual
+ * function number for eGPIO and any time we see that function
+ * number used we'll treat it as a request to mux away from
+ * our TLMM towards another owner.
+ */
+struct msm_pinctrl_soc_data {
+ const struct pinctrl_pin_desc *pins;
+ unsigned npins;
+ const struct msm_function *functions;
+ unsigned nfunctions;
+ const struct msm_pingroup *groups;
+ unsigned ngroups;
+ unsigned ngpios;
+ bool pull_no_keeper;
+ const char *const *tiles;
+ unsigned int ntiles;
+ const int *reserved_gpios;
+ const struct msm_gpio_wakeirq_map *wakeirq_map;
+ unsigned int nwakeirq_map;
+ bool wakeirq_dual_edge_errata;
+ unsigned int gpio_func;
+ unsigned int egpio_func;
+};
+
+extern const struct dev_pm_ops msm_pinctrl_dev_pm_ops;
+
+int msm_pinctrl_probe(struct platform_device *pdev,
+ const struct msm_pinctrl_soc_data *soc_data);
+int msm_pinctrl_remove(struct platform_device *pdev);
+
+#endif