From a74d4c577c60b27fc57ea734ef8275921ae8dcb2 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Fri, 9 Jun 2023 16:29:58 +0800 Subject: [PATCH 1/6] regulator: dt-bindings: mt6358: Merge ldo_vcn33_* regulators The ldo_vcn33_bt and ldo_vcn33_wifi regulators are actually the same regulator, having the same voltage setting and output pin. There are simply two enable bits that are ORed together to enable the regulator. Having two regulators representing the same output pin is misleading from a design matching standpoint, and also error-prone in driver implementations. Merge the two as ldo_vcn33. Neither vcn33 regulators are referenced in upstream device trees. As far as hardware designs go, none of the Chromebooks using MT8183 w/ MT6358 use this output. Signed-off-by: Chen-Yu Tsai Acked-by: Krzysztof Kozlowski Reviewed-by: Matthias Brugger Link: https://lore.kernel.org/r/20230609083009.2822259-2-wenst@chromium.org Signed-off-by: Mark Brown --- .../bindings/regulator/mt6358-regulator.txt | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt index 7034cdca54e0..b22b956d1cbe 100644 --- a/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt @@ -15,8 +15,7 @@ LDO: ldo_vcamd, ldo_vcn18, ldo_vfe28, ldo_vsram_proc11, ldo_vcn28, ldo_vsram_others, ldo_vsram_others_sshub, ldo_vsram_gpu, ldo_vxo22, ldo_vefuse, ldo_vaux18, ldo_vmch, ldo_vbif28, ldo_vsram_proc12, ldo_vcama1, ldo_vemc, ldo_vio28, ldo_va12, - ldo_vrf18, ldo_vcn33_bt, ldo_vcn33_wifi, ldo_vcama2, ldo_vmc, ldo_vldo28, ldo_vaud28, - ldo_vsim2 + ldo_vrf18, ldo_vcn33, ldo_vcama2, ldo_vmc, ldo_vldo28, ldo_vaud28, ldo_vsim2 Example: @@ -305,15 +304,8 @@ Example: regulator-enable-ramp-delay = <120>; }; - mt6358_vcn33_bt_reg: ldo_vcn33_bt { - regulator-name = "vcn33_bt"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3500000>; - regulator-enable-ramp-delay = <270>; - }; - - mt6358_vcn33_wifi_reg: ldo_vcn33_wifi { - regulator-name = "vcn33_wifi"; + mt6358_vcn33_reg: ldo_vcn33 { + regulator-name = "vcn33"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3500000>; regulator-enable-ramp-delay = <270>; From 82f305b18eb0505444eab8ac86bfa134b67cb38e Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Fri, 9 Jun 2023 16:29:59 +0800 Subject: [PATCH 2/6] regulator: dt-bindings: mt6358: Drop *_sshub regulators The *_sshub regulators are actually alternate configuration interfaces for their non *_sshub counterparts. They are not separate regulator outputs. These registers are intended for the companion processor to use to configure the power rails while the main processor is sleeping. They are not intended for the main operating system to use. Since they are not real outputs they shouldn't be modeled separately. Remove them. Luckily no device tree actually uses them. Signed-off-by: Chen-Yu Tsai Reviewed-by: Matthias Brugger Acked-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20230609083009.2822259-3-wenst@chromium.org Signed-off-by: Mark Brown --- .../bindings/regulator/mt6358-regulator.txt | 22 +++++-------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt index b22b956d1cbe..b6384306db5c 100644 --- a/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/mt6358-regulator.txt @@ -8,14 +8,14 @@ Documentation/devicetree/bindings/regulator/regulator.txt. The valid names for regulators are:: BUCK: - buck_vdram1, buck_vcore, buck_vcore_sshub, buck_vpa, buck_vproc11, - buck_vproc12, buck_vgpu, buck_vs2, buck_vmodem, buck_vs1 + buck_vdram1, buck_vcore, buck_vpa, buck_vproc11, buck_vproc12, buck_vgpu, + buck_vs2, buck_vmodem, buck_vs1 LDO: ldo_vdram2, ldo_vsim1, ldo_vibr, ldo_vrf12, ldo_vio18, ldo_vusb, ldo_vcamio, ldo_vcamd, ldo_vcn18, ldo_vfe28, ldo_vsram_proc11, ldo_vcn28, ldo_vsram_others, - ldo_vsram_others_sshub, ldo_vsram_gpu, ldo_vxo22, ldo_vefuse, ldo_vaux18, - ldo_vmch, ldo_vbif28, ldo_vsram_proc12, ldo_vcama1, ldo_vemc, ldo_vio28, ldo_va12, - ldo_vrf18, ldo_vcn33, ldo_vcama2, ldo_vmc, ldo_vldo28, ldo_vaud28, ldo_vsim2 + ldo_vsram_gpu, ldo_vxo22, ldo_vefuse, ldo_vaux18, ldo_vmch, ldo_vbif28, + ldo_vsram_proc12, ldo_vcama1, ldo_vemc, ldo_vio28, ldo_va12, ldo_vrf18, + ldo_vcn33, ldo_vcama2, ldo_vmc, ldo_vldo28, ldo_vaud28, ldo_vsim2 Example: @@ -346,17 +346,5 @@ Example: regulator-max-microvolt = <3100000>; regulator-enable-ramp-delay = <540>; }; - - mt6358_vcore_sshub_reg: buck_vcore_sshub { - regulator-name = "vcore_sshub"; - regulator-min-microvolt = <500000>; - regulator-max-microvolt = <1293750>; - }; - - mt6358_vsram_others_sshub_reg: ldo_vsram_others_sshub { - regulator-name = "vsram_others_sshub"; - regulator-min-microvolt = <500000>; - regulator-max-microvolt = <1293750>; - }; }; }; From 65bae54e08c109ddbbf121bb00058cf3b3fb7b8e Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Fri, 9 Jun 2023 16:30:00 +0800 Subject: [PATCH 3/6] regulator: mt6358: Merge VCN33_* regulators The VCN33_BT and VCN33_WIFI regulators are actually the same regulator, having the same voltage setting and output pin. There are simply two enable bits that are ORed together to enable the regulator. Having two regulators representing the same output pin is misleading from a design matching standpoint, and also error-prone in driver implementations. If consumers try to set different voltages on either regulator, the one set later would override the one set before. There are ways around this, such as chaining them together and having the downstream one act as a switch. But given there's only one output pin, such a workaround doesn't match reality. Remove the VCN33_WIFI regulator. During the probe phase, have the driver sync the enable status of VCN33_WIFI to VCN33_BT. Also drop the suffix so that the regulator name matches the pin name in the datasheet. Signed-off-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20230609083009.2822259-4-wenst@chromium.org Signed-off-by: Mark Brown --- drivers/regulator/mt6358-regulator.c | 65 +++++++++++++++++----- include/linux/regulator/mt6358-regulator.h | 6 +- 2 files changed, 52 insertions(+), 19 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index c9e16bd092f6..faf6b0757019 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -277,7 +277,7 @@ static const unsigned int vcama_voltages[] = { 2800000, 2900000, 3000000, }; -static const unsigned int vcn33_bt_wifi_voltages[] = { +static const unsigned int vcn33_voltages[] = { 3300000, 3400000, 3500000, }; @@ -321,7 +321,7 @@ static const u32 vcama_idx[] = { 0, 7, 9, 10, 11, 12, }; -static const u32 vcn33_bt_wifi_idx[] = { +static const u32 vcn33_idx[] = { 1, 2, 3, }; @@ -566,12 +566,8 @@ static struct mt6358_regulator_info mt6358_regulators[] = { MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00), MT6358_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx, MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700), - MT6358_LDO("ldo_vcn33_bt", VCN33_BT, vcn33_bt_wifi_voltages, - vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_0, - 0, MT6358_VCN33_ANA_CON0, 0x300), - MT6358_LDO("ldo_vcn33_wifi", VCN33_WIFI, vcn33_bt_wifi_voltages, - vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_1, - 0, MT6358_VCN33_ANA_CON0, 0x300), + MT6358_LDO("ldo_vcn33", VCN33, vcn33_voltages, vcn33_idx, + MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300), MT6358_LDO("ldo_vcama2", VCAMA2, vcama_voltages, vcama_idx, MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00), MT6358_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx, @@ -662,12 +658,8 @@ static struct mt6358_regulator_info mt6366_regulators[] = { MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700), MT6366_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx, MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700), - MT6366_LDO("ldo_vcn33_bt", VCN33_BT, vcn33_bt_wifi_voltages, - vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_0, - 0, MT6358_VCN33_ANA_CON0, 0x300), - MT6366_LDO("ldo_vcn33_wifi", VCN33_WIFI, vcn33_bt_wifi_voltages, - vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_1, - 0, MT6358_VCN33_ANA_CON0, 0x300), + MT6366_LDO("ldo_vcn33", VCN33, vcn33_voltages, vcn33_idx, + MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300), MT6366_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx, MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00), MT6366_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx, @@ -690,13 +682,56 @@ static struct mt6358_regulator_info mt6366_regulators[] = { MT6358_LDO_VSRAM_CON1, 0x7f), }; +static int mt6358_sync_vcn33_setting(struct device *dev) +{ + struct mt6397_chip *mt6397 = dev_get_drvdata(dev->parent); + unsigned int val; + int ret; + + /* + * VCN33_WIFI and VCN33_BT are two separate enable bits for the same + * regulator. They share the same voltage setting and output pin. + * Instead of having two potentially conflicting regulators, just have + * one VCN33 regulator. Sync the two enable bits and only use one in + * the regulator device. + */ + ret = regmap_read(mt6397->regmap, MT6358_LDO_VCN33_CON0_1, &val); + if (ret) { + dev_err(dev, "Failed to read VCN33_WIFI setting\n"); + return ret; + } + + if (!(val & BIT(0))) + return 0; + + /* Sync VCN33_WIFI enable status to VCN33_BT */ + ret = regmap_update_bits(mt6397->regmap, MT6358_LDO_VCN33_CON0_0, BIT(0), BIT(0)); + if (ret) { + dev_err(dev, "Failed to sync VCN33_WIFI setting to VCN33_BT\n"); + return ret; + } + + /* Disable VCN33_WIFI */ + ret = regmap_update_bits(mt6397->regmap, MT6358_LDO_VCN33_CON0_1, BIT(0), 0); + if (ret) { + dev_err(dev, "Failed to disable VCN33_BT\n"); + return ret; + } + + return 0; +} + static int mt6358_regulator_probe(struct platform_device *pdev) { struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = {}; struct regulator_dev *rdev; struct mt6358_regulator_info *mt6358_info; - int i, max_regulator; + int i, max_regulator, ret; + + ret = mt6358_sync_vcn33_setting(&pdev->dev); + if (ret) + return ret; if (mt6397->chip_id == MT6366_CHIP_ID) { max_regulator = MT6366_MAX_REGULATOR; diff --git a/include/linux/regulator/mt6358-regulator.h b/include/linux/regulator/mt6358-regulator.h index bdcf83cd719e..a4307cd9edd6 100644 --- a/include/linux/regulator/mt6358-regulator.h +++ b/include/linux/regulator/mt6358-regulator.h @@ -41,8 +41,7 @@ enum { MT6358_ID_VIO28, MT6358_ID_VA12, MT6358_ID_VRF18, - MT6358_ID_VCN33_BT, - MT6358_ID_VCN33_WIFI, + MT6358_ID_VCN33, MT6358_ID_VCAMA2, MT6358_ID_VMC, MT6358_ID_VLDO28, @@ -85,8 +84,7 @@ enum { MT6366_ID_VIO28, MT6366_ID_VA12, MT6366_ID_VRF18, - MT6366_ID_VCN33_BT, - MT6366_ID_VCN33_WIFI, + MT6366_ID_VCN33, MT6366_ID_VMC, MT6366_ID_VAUD28, MT6366_ID_VSIM2, From 04ba665248ed91576d326041108e5fc2ec2254eb Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Fri, 9 Jun 2023 16:30:01 +0800 Subject: [PATCH 4/6] regulator: mt6358: Drop *_SSHUB regulators The *_SSHUB regulators are actually alternate configuration interfaces for their non *_SSHUB counterparts. They are not separate regulator outputs. These registers are intended for the companion processor to use to configure the power rails while the main processor is sleeping. They are not intended for the main operating system to use. Since they are not real outputs they shouldn't be modeled separately. Remove them. Luckily no device tree actually uses them. Signed-off-by: Chen-Yu Tsai Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Matthias Brugger Link: https://lore.kernel.org/r/20230609083009.2822259-5-wenst@chromium.org Signed-off-by: Mark Brown --- drivers/regulator/mt6358-regulator.c | 14 -------------- include/linux/regulator/mt6358-regulator.h | 4 ---- 2 files changed, 18 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index faf6b0757019..946a251a8b3a 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -505,9 +505,6 @@ static struct mt6358_regulator_info mt6358_regulators[] = { MT6358_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250, buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1), - MT6358_BUCK("buck_vcore_sshub", VCORE_SSHUB, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_SSHUB_ELR0, 0x7f, - MT6358_VCORE_VGPU_ANA_CON0, 1), MT6358_BUCK("buck_vpa", VPA, 500000, 3650000, 50000, buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3), @@ -583,10 +580,6 @@ static struct mt6358_regulator_info mt6358_regulators[] = { MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250, buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f), - MT6358_LDO1("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB, 500000, - 1293750, 6250, buck_volt_range1, - MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f, - MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f), MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250, buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f), @@ -603,9 +596,6 @@ static struct mt6358_regulator_info mt6366_regulators[] = { MT6366_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250, buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1), - MT6366_BUCK("buck_vcore_sshub", VCORE_SSHUB, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_SSHUB_ELR0, 0x7f, - MT6358_VCORE_VGPU_ANA_CON0, 1), MT6366_BUCK("buck_vpa", VPA, 500000, 3650000, 50000, buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3), @@ -670,10 +660,6 @@ static struct mt6358_regulator_info mt6366_regulators[] = { MT6366_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250, buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f), - MT6366_LDO1("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB, 500000, - 1293750, 6250, buck_volt_range1, - MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f, - MT6358_LDO_VSRAM_OTHERS_SSHUB_CON1, 0x7f), MT6366_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250, buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f), diff --git a/include/linux/regulator/mt6358-regulator.h b/include/linux/regulator/mt6358-regulator.h index a4307cd9edd6..c71a6a9fce7a 100644 --- a/include/linux/regulator/mt6358-regulator.h +++ b/include/linux/regulator/mt6358-regulator.h @@ -47,8 +47,6 @@ enum { MT6358_ID_VLDO28, MT6358_ID_VAUD28, MT6358_ID_VSIM2, - MT6358_ID_VCORE_SSHUB, - MT6358_ID_VSRAM_OTHERS_SSHUB, MT6358_ID_RG_MAX, }; @@ -88,8 +86,6 @@ enum { MT6366_ID_VMC, MT6366_ID_VAUD28, MT6366_ID_VSIM2, - MT6366_ID_VCORE_SSHUB, - MT6366_ID_VSRAM_OTHERS_SSHUB, MT6366_ID_RG_MAX, }; From 1ff35e66cae53f7090a671afddaee45d4ccd9396 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Fri, 9 Jun 2023 16:30:02 +0800 Subject: [PATCH 5/6] regulator: mt6358: Const-ify mt6358_regulator_info data structures In the MT6358 regulator driver, each regulator is described by a |struct regulator_desc| wrapped by a |struct mt6358_regulator_info|. The latter was tied to the regulator device using the config's driver_data field, which meant that the variables could not be constant. Since each regulator device has a pointer to its regulator_desc, and mt6358_regulator_info wraps that, the driver could use container_of() to retrieve it instead. Switch to using container_of(), drop tha driver_data setting, and const-ify all the regulator descriptions. Signed-off-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20230609083009.2822259-6-wenst@chromium.org Signed-off-by: Mark Brown --- drivers/regulator/mt6358-regulator.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index 946a251a8b3a..2851ef53ac63 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -34,6 +34,8 @@ struct mt6358_regulator_info { u32 modeset_mask; }; +#define to_regulator_info(x) container_of((x), struct mt6358_regulator_info, desc) + #define MT6358_BUCK(match, vreg, min, max, step, \ volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask, \ _modeset_reg, _modeset_shift) \ @@ -342,9 +344,9 @@ static unsigned int mt6358_map_mode(unsigned int mode) static int mt6358_set_voltage_sel(struct regulator_dev *rdev, unsigned int selector) { + const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc); int idx, ret; const u32 *pvol; - struct mt6358_regulator_info *info = rdev_get_drvdata(rdev); pvol = info->index_table; @@ -358,9 +360,9 @@ static int mt6358_set_voltage_sel(struct regulator_dev *rdev, static int mt6358_get_voltage_sel(struct regulator_dev *rdev) { + const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc); int idx, ret; u32 selector; - struct mt6358_regulator_info *info = rdev_get_drvdata(rdev); const u32 *pvol; ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector); @@ -384,8 +386,8 @@ static int mt6358_get_voltage_sel(struct regulator_dev *rdev) static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev) { + const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc); int ret, regval; - struct mt6358_regulator_info *info = rdev_get_drvdata(rdev); ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val); if (ret != 0) { @@ -402,9 +404,9 @@ static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev) static int mt6358_get_status(struct regulator_dev *rdev) { + const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc); int ret; u32 regval; - struct mt6358_regulator_info *info = rdev_get_drvdata(rdev); ret = regmap_read(rdev->regmap, info->status_reg, ®val); if (ret != 0) { @@ -418,7 +420,7 @@ static int mt6358_get_status(struct regulator_dev *rdev) static int mt6358_regulator_set_mode(struct regulator_dev *rdev, unsigned int mode) { - struct mt6358_regulator_info *info = rdev_get_drvdata(rdev); + const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc); int val; switch (mode) { @@ -443,7 +445,7 @@ static int mt6358_regulator_set_mode(struct regulator_dev *rdev, static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev) { - struct mt6358_regulator_info *info = rdev_get_drvdata(rdev); + const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc); int ret, regval; ret = regmap_read(rdev->regmap, info->modeset_reg, ®val); @@ -498,7 +500,7 @@ static const struct regulator_ops mt6358_volt_fixed_ops = { }; /* The array is indexed by id(MT6358_ID_XXX) */ -static struct mt6358_regulator_info mt6358_regulators[] = { +static const struct mt6358_regulator_info mt6358_regulators[] = { MT6358_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500, buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8), @@ -589,7 +591,7 @@ static struct mt6358_regulator_info mt6358_regulators[] = { }; /* The array is indexed by id(MT6366_ID_XXX) */ -static struct mt6358_regulator_info mt6366_regulators[] = { +static const struct mt6358_regulator_info mt6366_regulators[] = { MT6366_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500, buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8), @@ -712,7 +714,7 @@ static int mt6358_regulator_probe(struct platform_device *pdev) struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = {}; struct regulator_dev *rdev; - struct mt6358_regulator_info *mt6358_info; + const struct mt6358_regulator_info *mt6358_info; int i, max_regulator, ret; ret = mt6358_sync_vcn33_setting(&pdev->dev); @@ -729,7 +731,6 @@ static int mt6358_regulator_probe(struct platform_device *pdev) for (i = 0; i < max_regulator; i++) { config.dev = &pdev->dev; - config.driver_data = &mt6358_info[i]; config.regmap = mt6397->regmap; rdev = devm_regulator_register(&pdev->dev, From ea861df772fd8cca715d43f62fe13c09c975f7a2 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Fri, 9 Jun 2023 16:30:03 +0800 Subject: [PATCH 6/6] regulator: mt6358: Use linear voltage helpers for single range regulators Some of the regulators on the MT6358/MT6366 PMICs have just one linear voltage range. These are the bulk regulators and VSRAM_* LDOs. Currently they are modeled with one linear range, but also have their minimum, maximum, and step voltage described. Convert them to the linear voltage helpers. These helpers are a bit simpler, and we can also drop the linear range definitions. Also reflow the touched lines now that they are shorter. Signed-off-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20230609083009.2822259-7-wenst@chromium.org Signed-off-by: Mark Brown --- drivers/regulator/mt6358-regulator.c | 121 +++++++++------------------ 1 file changed, 40 insertions(+), 81 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index 2851ef53ac63..31a16fb28ecd 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -37,7 +37,7 @@ struct mt6358_regulator_info { #define to_regulator_info(x) container_of((x), struct mt6358_regulator_info, desc) #define MT6358_BUCK(match, vreg, min, max, step, \ - volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask, \ + vosel_mask, _da_vsel_reg, _da_vsel_mask, \ _modeset_reg, _modeset_shift) \ [MT6358_ID_##vreg] = { \ .desc = { \ @@ -48,8 +48,8 @@ struct mt6358_regulator_info { .id = MT6358_ID_##vreg, \ .owner = THIS_MODULE, \ .n_voltages = ((max) - (min)) / (step) + 1, \ - .linear_ranges = volt_ranges, \ - .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .min_uV = (min), \ + .uV_step = (step), \ .vsel_reg = MT6358_BUCK_##vreg##_ELR0, \ .vsel_mask = vosel_mask, \ .enable_reg = MT6358_BUCK_##vreg##_CON0, \ @@ -89,7 +89,7 @@ struct mt6358_regulator_info { } #define MT6358_LDO1(match, vreg, min, max, step, \ - volt_ranges, _da_vsel_reg, _da_vsel_mask, \ + _da_vsel_reg, _da_vsel_mask, \ vosel, vosel_mask) \ [MT6358_ID_##vreg] = { \ .desc = { \ @@ -100,8 +100,8 @@ struct mt6358_regulator_info { .id = MT6358_ID_##vreg, \ .owner = THIS_MODULE, \ .n_voltages = ((max) - (min)) / (step) + 1, \ - .linear_ranges = volt_ranges, \ - .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .min_uV = (min), \ + .uV_step = (step), \ .vsel_reg = vosel, \ .vsel_mask = vosel_mask, \ .enable_reg = MT6358_LDO_##vreg##_CON0, \ @@ -133,7 +133,7 @@ struct mt6358_regulator_info { } #define MT6366_BUCK(match, vreg, min, max, step, \ - volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask, \ + vosel_mask, _da_vsel_reg, _da_vsel_mask, \ _modeset_reg, _modeset_shift) \ [MT6366_ID_##vreg] = { \ .desc = { \ @@ -144,8 +144,8 @@ struct mt6358_regulator_info { .id = MT6366_ID_##vreg, \ .owner = THIS_MODULE, \ .n_voltages = ((max) - (min)) / (step) + 1, \ - .linear_ranges = volt_ranges, \ - .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .min_uV = (min), \ + .uV_step = (step), \ .vsel_reg = MT6358_BUCK_##vreg##_ELR0, \ .vsel_mask = vosel_mask, \ .enable_reg = MT6358_BUCK_##vreg##_CON0, \ @@ -185,7 +185,7 @@ struct mt6358_regulator_info { } #define MT6366_LDO1(match, vreg, min, max, step, \ - volt_ranges, _da_vsel_reg, _da_vsel_mask, \ + _da_vsel_reg, _da_vsel_mask, \ vosel, vosel_mask) \ [MT6366_ID_##vreg] = { \ .desc = { \ @@ -196,8 +196,8 @@ struct mt6358_regulator_info { .id = MT6366_ID_##vreg, \ .owner = THIS_MODULE, \ .n_voltages = ((max) - (min)) / (step) + 1, \ - .linear_ranges = volt_ranges, \ - .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .min_uV = (min), \ + .uV_step = (step), \ .vsel_reg = vosel, \ .vsel_mask = vosel_mask, \ .enable_reg = MT6358_LDO_##vreg##_CON0, \ @@ -228,21 +228,6 @@ struct mt6358_regulator_info { .qi = BIT(15), \ } -static const struct linear_range buck_volt_range1[] = { - REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250), -}; - -static const struct linear_range buck_volt_range2[] = { - REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500), -}; - -static const struct linear_range buck_volt_range3[] = { - REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000), -}; - -static const struct linear_range buck_volt_range4[] = { - REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500), -}; static const unsigned int vdram2_voltages[] = { 600000, 1800000, @@ -466,8 +451,8 @@ static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev) } static const struct regulator_ops mt6358_volt_range_ops = { - .list_voltage = regulator_list_voltage_linear_range, - .map_voltage = regulator_map_voltage_linear_range, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = mt6358_get_buck_voltage_sel, .set_voltage_time_sel = regulator_set_voltage_time_sel, @@ -502,32 +487,23 @@ static const struct regulator_ops mt6358_volt_fixed_ops = { /* The array is indexed by id(MT6358_ID_XXX) */ static const struct mt6358_regulator_info mt6358_regulators[] = { MT6358_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500, - buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, - MT6358_VDRAM1_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8), MT6358_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, - MT6358_VCORE_VGPU_ANA_CON0, 1), + 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1), MT6358_BUCK("buck_vpa", VPA, 500000, 3650000, 50000, - buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, - MT6358_VPA_ANA_CON0, 3), + 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3), MT6358_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, - MT6358_VPROC_ANA_CON0, 1), + 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1), MT6358_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, - MT6358_VPROC_ANA_CON0, 2), + 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2), MT6358_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, - MT6358_VCORE_VGPU_ANA_CON0, 2), + 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2), MT6358_BUCK("buck_vs2", VS2, 500000, 2087500, 12500, - buck_volt_range2, 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, - MT6358_VS2_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8), MT6358_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, - MT6358_VMODEM_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8), MT6358_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500, - buck_volt_range4, 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, - MT6358_VS1_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8), MT6358_REG_FIXED("ldo_vrf12", VRF12, MT6358_LDO_VRF12_CON0, 0, 1200000), MT6358_REG_FIXED("ldo_vio18", VIO18, @@ -577,48 +553,35 @@ static const struct mt6358_regulator_info mt6358_regulators[] = { MT6358_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx, MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00), MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON0, 0x7f), + MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f), MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON2, 0x7f), + MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f), MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON3, 0x7f), + MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f), MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON1, 0x7f), + MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f), }; /* The array is indexed by id(MT6366_ID_XXX) */ static const struct mt6358_regulator_info mt6366_regulators[] = { MT6366_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500, - buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, - MT6358_VDRAM1_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8), MT6366_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, - MT6358_VCORE_VGPU_ANA_CON0, 1), + 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1), MT6366_BUCK("buck_vpa", VPA, 500000, 3650000, 50000, - buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, - MT6358_VPA_ANA_CON0, 3), + 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3), MT6366_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, - MT6358_VPROC_ANA_CON0, 1), + 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1), MT6366_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, - MT6358_VPROC_ANA_CON0, 2), + 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2), MT6366_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, - MT6358_VCORE_VGPU_ANA_CON0, 2), + 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2), MT6366_BUCK("buck_vs2", VS2, 500000, 2087500, 12500, - buck_volt_range2, 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, - MT6358_VS2_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8), MT6366_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250, - buck_volt_range1, 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, - MT6358_VMODEM_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8), MT6366_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500, - buck_volt_range4, 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, - MT6358_VS1_ANA_CON0, 8), + 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8), MT6366_REG_FIXED("ldo_vrf12", VRF12, MT6358_LDO_VRF12_CON0, 0, 1200000), MT6366_REG_FIXED("ldo_vio18", VIO18, @@ -657,17 +620,13 @@ static const struct mt6358_regulator_info mt6366_regulators[] = { MT6366_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx, MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00), MT6366_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON0, 0x7f), + MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f), MT6366_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON2, 0x7f), + MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f), MT6366_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON3, 0x7f), + MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f), MT6366_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250, - buck_volt_range1, MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, - MT6358_LDO_VSRAM_CON1, 0x7f), + MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f), }; static int mt6358_sync_vcn33_setting(struct device *dev)