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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
commit | 01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch) | |
tree | b406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c | |
parent | Adding upstream version 6.7.12. (diff) | |
download | linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip |
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c')
-rw-r--r-- | drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c | 166 |
1 files changed, 62 insertions, 104 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c index a623f092b1..a43e20abb1 100644 --- a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c +++ b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c @@ -37,56 +37,28 @@ #define EUSB2_TUNE_EUSB_EQU 0x5A #define EUSB2_TUNE_EUSB_HS_COMP_CUR 0x5B -#define QCOM_EUSB2_REPEATER_INIT_CFG(r, v) \ - { \ - .reg = r, \ - .val = v, \ - } - -enum reg_fields { - F_TUNE_EUSB_HS_COMP_CUR, - F_TUNE_EUSB_EQU, - F_TUNE_EUSB_SLEW, - F_TUNE_USB2_HS_COMP_CUR, - F_TUNE_USB2_PREEM, - F_TUNE_USB2_EQU, - F_TUNE_USB2_SLEW, - F_TUNE_SQUELCH_U, - F_TUNE_HSDISC, - F_TUNE_RES_FSDIF, - F_TUNE_IUSB2, - F_TUNE_USB2_CROSSOVER, - F_NUM_TUNE_FIELDS, - - F_FORCE_VAL_5 = F_NUM_TUNE_FIELDS, - F_FORCE_EN_5, - - F_EN_CTL1, - - F_RPTR_STATUS, - F_NUM_FIELDS, -}; - -static struct reg_field eusb2_repeater_tune_reg_fields[F_NUM_FIELDS] = { - [F_TUNE_EUSB_HS_COMP_CUR] = REG_FIELD(EUSB2_TUNE_EUSB_HS_COMP_CUR, 0, 1), - [F_TUNE_EUSB_EQU] = REG_FIELD(EUSB2_TUNE_EUSB_EQU, 0, 1), - [F_TUNE_EUSB_SLEW] = REG_FIELD(EUSB2_TUNE_EUSB_SLEW, 0, 1), - [F_TUNE_USB2_HS_COMP_CUR] = REG_FIELD(EUSB2_TUNE_USB2_HS_COMP_CUR, 0, 1), - [F_TUNE_USB2_PREEM] = REG_FIELD(EUSB2_TUNE_USB2_PREEM, 0, 2), - [F_TUNE_USB2_EQU] = REG_FIELD(EUSB2_TUNE_USB2_EQU, 0, 1), - [F_TUNE_USB2_SLEW] = REG_FIELD(EUSB2_TUNE_USB2_SLEW, 0, 1), - [F_TUNE_SQUELCH_U] = REG_FIELD(EUSB2_TUNE_SQUELCH_U, 0, 2), - [F_TUNE_HSDISC] = REG_FIELD(EUSB2_TUNE_HSDISC, 0, 2), - [F_TUNE_RES_FSDIF] = REG_FIELD(EUSB2_TUNE_RES_FSDIF, 0, 2), - [F_TUNE_IUSB2] = REG_FIELD(EUSB2_TUNE_IUSB2, 0, 3), - [F_TUNE_USB2_CROSSOVER] = REG_FIELD(EUSB2_TUNE_USB2_CROSSOVER, 0, 2), - - [F_FORCE_VAL_5] = REG_FIELD(EUSB2_FORCE_VAL_5, 0, 7), - [F_FORCE_EN_5] = REG_FIELD(EUSB2_FORCE_EN_5, 0, 7), - - [F_EN_CTL1] = REG_FIELD(EUSB2_EN_CTL1, 0, 7), - - [F_RPTR_STATUS] = REG_FIELD(EUSB2_RPTR_STATUS, 0, 7), +enum eusb2_reg_layout { + TUNE_EUSB_HS_COMP_CUR, + TUNE_EUSB_EQU, + TUNE_EUSB_SLEW, + TUNE_USB2_HS_COMP_CUR, + TUNE_USB2_PREEM, + TUNE_USB2_EQU, + TUNE_USB2_SLEW, + TUNE_SQUELCH_U, + TUNE_HSDISC, + TUNE_RES_FSDIF, + TUNE_IUSB2, + TUNE_USB2_CROSSOVER, + NUM_TUNE_FIELDS, + + FORCE_VAL_5 = NUM_TUNE_FIELDS, + FORCE_EN_5, + + EN_CTL1, + + RPTR_STATUS, + LAYOUT_SIZE, }; struct eusb2_repeater_cfg { @@ -98,10 +70,11 @@ struct eusb2_repeater_cfg { struct eusb2_repeater { struct device *dev; - struct regmap_field *regs[F_NUM_FIELDS]; + struct regmap *regmap; struct phy *phy; struct regulator_bulk_data *vregs; const struct eusb2_repeater_cfg *cfg; + u32 base; enum phy_mode mode; }; @@ -109,10 +82,10 @@ static const char * const pm8550b_vreg_l[] = { "vdd18", "vdd3", }; -static const u32 pm8550b_init_tbl[F_NUM_TUNE_FIELDS] = { - [F_TUNE_IUSB2] = 0x8, - [F_TUNE_SQUELCH_U] = 0x3, - [F_TUNE_USB2_PREEM] = 0x5, +static const u32 pm8550b_init_tbl[NUM_TUNE_FIELDS] = { + [TUNE_IUSB2] = 0x8, + [TUNE_SQUELCH_U] = 0x3, + [TUNE_USB2_PREEM] = 0x5, }; static const struct eusb2_repeater_cfg pm8550b_eusb2_cfg = { @@ -140,47 +113,42 @@ static int eusb2_repeater_init_vregs(struct eusb2_repeater *rptr) static int eusb2_repeater_init(struct phy *phy) { - struct reg_field *regfields = eusb2_repeater_tune_reg_fields; struct eusb2_repeater *rptr = phy_get_drvdata(phy); struct device_node *np = rptr->dev->of_node; - u32 init_tbl[F_NUM_TUNE_FIELDS] = { 0 }; - u8 override; + struct regmap *regmap = rptr->regmap; + const u32 *init_tbl = rptr->cfg->init_tbl; + u8 tune_usb2_preem = init_tbl[TUNE_USB2_PREEM]; + u8 tune_hsdisc = init_tbl[TUNE_HSDISC]; + u8 tune_iusb2 = init_tbl[TUNE_IUSB2]; + u32 base = rptr->base; u32 val; int ret; - int i; + + of_property_read_u8(np, "qcom,tune-usb2-amplitude", &tune_iusb2); + of_property_read_u8(np, "qcom,tune-usb2-disc-thres", &tune_hsdisc); + of_property_read_u8(np, "qcom,tune-usb2-preem", &tune_usb2_preem); ret = regulator_bulk_enable(rptr->cfg->num_vregs, rptr->vregs); if (ret) return ret; - regmap_field_update_bits(rptr->regs[F_EN_CTL1], EUSB2_RPTR_EN, EUSB2_RPTR_EN); + regmap_write(regmap, base + EUSB2_EN_CTL1, EUSB2_RPTR_EN); - for (i = 0; i < F_NUM_TUNE_FIELDS; i++) { - if (init_tbl[i]) { - regmap_field_update_bits(rptr->regs[i], init_tbl[i], init_tbl[i]); - } else { - /* Write 0 if there's no value set */ - u32 mask = GENMASK(regfields[i].msb, regfields[i].lsb); - - regmap_field_update_bits(rptr->regs[i], mask, 0); - } - } - memcpy(init_tbl, rptr->cfg->init_tbl, sizeof(init_tbl)); + regmap_write(regmap, base + EUSB2_TUNE_EUSB_HS_COMP_CUR, init_tbl[TUNE_EUSB_HS_COMP_CUR]); + regmap_write(regmap, base + EUSB2_TUNE_EUSB_EQU, init_tbl[TUNE_EUSB_EQU]); + regmap_write(regmap, base + EUSB2_TUNE_EUSB_SLEW, init_tbl[TUNE_EUSB_SLEW]); + regmap_write(regmap, base + EUSB2_TUNE_USB2_HS_COMP_CUR, init_tbl[TUNE_USB2_HS_COMP_CUR]); + regmap_write(regmap, base + EUSB2_TUNE_USB2_EQU, init_tbl[TUNE_USB2_EQU]); + regmap_write(regmap, base + EUSB2_TUNE_USB2_SLEW, init_tbl[TUNE_USB2_SLEW]); + regmap_write(regmap, base + EUSB2_TUNE_SQUELCH_U, init_tbl[TUNE_SQUELCH_U]); + regmap_write(regmap, base + EUSB2_TUNE_RES_FSDIF, init_tbl[TUNE_RES_FSDIF]); + regmap_write(regmap, base + EUSB2_TUNE_USB2_CROSSOVER, init_tbl[TUNE_USB2_CROSSOVER]); - if (!of_property_read_u8(np, "qcom,tune-usb2-amplitude", &override)) - init_tbl[F_TUNE_IUSB2] = override; + regmap_write(regmap, base + EUSB2_TUNE_USB2_PREEM, tune_usb2_preem); + regmap_write(regmap, base + EUSB2_TUNE_HSDISC, tune_hsdisc); + regmap_write(regmap, base + EUSB2_TUNE_IUSB2, tune_iusb2); - if (!of_property_read_u8(np, "qcom,tune-usb2-disc-thres", &override)) - init_tbl[F_TUNE_HSDISC] = override; - - if (!of_property_read_u8(np, "qcom,tune-usb2-preem", &override)) - init_tbl[F_TUNE_USB2_PREEM] = override; - - for (i = 0; i < F_NUM_TUNE_FIELDS; i++) - regmap_field_update_bits(rptr->regs[i], init_tbl[i], init_tbl[i]); - - ret = regmap_field_read_poll_timeout(rptr->regs[F_RPTR_STATUS], - val, val & RPTR_OK, 10, 5); + ret = regmap_read_poll_timeout(regmap, base + EUSB2_RPTR_STATUS, val, val & RPTR_OK, 10, 5); if (ret) dev_err(rptr->dev, "initialization timed-out\n"); @@ -191,6 +159,8 @@ static int eusb2_repeater_set_mode(struct phy *phy, enum phy_mode mode, int submode) { struct eusb2_repeater *rptr = phy_get_drvdata(phy); + struct regmap *regmap = rptr->regmap; + u32 base = rptr->base; switch (mode) { case PHY_MODE_USB_HOST: @@ -199,10 +169,8 @@ static int eusb2_repeater_set_mode(struct phy *phy, * per eUSB 1.2 Spec. Below implement software workaround until * PHY and controller is fixing seen observation. */ - regmap_field_update_bits(rptr->regs[F_FORCE_EN_5], - F_CLK_19P2M_EN, F_CLK_19P2M_EN); - regmap_field_update_bits(rptr->regs[F_FORCE_VAL_5], - V_CLK_19P2M_EN, V_CLK_19P2M_EN); + regmap_write(regmap, base + EUSB2_FORCE_EN_5, F_CLK_19P2M_EN); + regmap_write(regmap, base + EUSB2_FORCE_VAL_5, V_CLK_19P2M_EN); break; case PHY_MODE_USB_DEVICE: /* @@ -211,10 +179,8 @@ static int eusb2_repeater_set_mode(struct phy *phy, * repeater doesn't clear previous value due to shared * regulators (say host <-> device mode switch). */ - regmap_field_update_bits(rptr->regs[F_FORCE_EN_5], - F_CLK_19P2M_EN, 0); - regmap_field_update_bits(rptr->regs[F_FORCE_VAL_5], - V_CLK_19P2M_EN, 0); + regmap_write(regmap, base + EUSB2_FORCE_EN_5, 0); + regmap_write(regmap, base + EUSB2_FORCE_VAL_5, 0); break; default: return -EINVAL; @@ -243,9 +209,8 @@ static int eusb2_repeater_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct phy_provider *phy_provider; struct device_node *np = dev->of_node; - struct regmap *regmap; - int i, ret; u32 res; + int ret; rptr = devm_kzalloc(dev, sizeof(*rptr), GFP_KERNEL); if (!rptr) @@ -258,22 +223,15 @@ static int eusb2_repeater_probe(struct platform_device *pdev) if (!rptr->cfg) return -EINVAL; - regmap = dev_get_regmap(dev->parent, NULL); - if (!regmap) + rptr->regmap = dev_get_regmap(dev->parent, NULL); + if (!rptr->regmap) return -ENODEV; ret = of_property_read_u32(np, "reg", &res); if (ret < 0) return ret; - for (i = 0; i < F_NUM_FIELDS; i++) - eusb2_repeater_tune_reg_fields[i].reg += res; - - ret = devm_regmap_field_bulk_alloc(dev, regmap, rptr->regs, - eusb2_repeater_tune_reg_fields, - F_NUM_FIELDS); - if (ret) - return ret; + rptr->base = res; ret = eusb2_repeater_init_vregs(rptr); if (ret < 0) { |