From: Chen-Yu Tsai <wenst@chromium.org> To: Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Mark Brown <broonie@kernel.org>, Liam Girdwood <lgirdwood@gmail.com>, Matthias Brugger <matthias.bgg@gmail.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Chen-Yu Tsai <wenst@chromium.org>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 7/9] regulator: mt6358: Add output voltage fine tuning to fixed regulators Date: Fri, 9 Jun 2023 16:30:04 +0800 [thread overview] Message-ID: <20230609083009.2822259-8-wenst@chromium.org> (raw) In-Reply-To: <20230609083009.2822259-1-wenst@chromium.org> The "fixed" LDO regulators found on the MT6358 and MT6366 PMICs have either no voltage selection register, or only one valid setting. However these do have a fine voltage calibration setting that can slightly boost the output voltage from 0 mV to 100 mV, in 10 mV increments. Add support for this by changing these into linear range regulators. Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> --- drivers/regulator/mt6358-regulator.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index 31a16fb28ecd..26060909cf90 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -123,10 +123,13 @@ struct mt6358_regulator_info { .type = REGULATOR_VOLTAGE, \ .id = MT6358_ID_##vreg, \ .owner = THIS_MODULE, \ - .n_voltages = 1, \ + .n_voltages = 11, \ + .vsel_reg = MT6358_##vreg##_ANA_CON0, \ + .vsel_mask = GENMASK(3, 0), \ .enable_reg = enreg, \ .enable_mask = BIT(enbit), \ .min_uV = volt, \ + .uV_step = 10000, \ }, \ .status_reg = MT6358_LDO_##vreg##_CON1, \ .qi = BIT(15), \ @@ -219,10 +222,13 @@ struct mt6358_regulator_info { .type = REGULATOR_VOLTAGE, \ .id = MT6366_ID_##vreg, \ .owner = THIS_MODULE, \ - .n_voltages = 1, \ + .n_voltages = 11, \ + .vsel_reg = MT6358_##vreg##_ANA_CON0, \ + .vsel_mask = GENMASK(3, 0), \ .enable_reg = enreg, \ .enable_mask = BIT(enbit), \ .min_uV = volt, \ + .uV_step = 10000, \ }, \ .status_reg = MT6358_LDO_##vreg##_CON1, \ .qi = BIT(15), \ @@ -476,8 +482,13 @@ static const struct regulator_ops mt6358_volt_table_ops = { .get_status = mt6358_get_status, }; +/* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */ static const struct regulator_ops mt6358_volt_fixed_ops = { .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, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, -- 2.41.0.162.gfafddb0af9-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Chen-Yu Tsai <wenst@chromium.org> To: Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Mark Brown <broonie@kernel.org>, Liam Girdwood <lgirdwood@gmail.com>, Matthias Brugger <matthias.bgg@gmail.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Chen-Yu Tsai <wenst@chromium.org>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 7/9] regulator: mt6358: Add output voltage fine tuning to fixed regulators Date: Fri, 9 Jun 2023 16:30:04 +0800 [thread overview] Message-ID: <20230609083009.2822259-8-wenst@chromium.org> (raw) In-Reply-To: <20230609083009.2822259-1-wenst@chromium.org> The "fixed" LDO regulators found on the MT6358 and MT6366 PMICs have either no voltage selection register, or only one valid setting. However these do have a fine voltage calibration setting that can slightly boost the output voltage from 0 mV to 100 mV, in 10 mV increments. Add support for this by changing these into linear range regulators. Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> --- drivers/regulator/mt6358-regulator.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index 31a16fb28ecd..26060909cf90 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -123,10 +123,13 @@ struct mt6358_regulator_info { .type = REGULATOR_VOLTAGE, \ .id = MT6358_ID_##vreg, \ .owner = THIS_MODULE, \ - .n_voltages = 1, \ + .n_voltages = 11, \ + .vsel_reg = MT6358_##vreg##_ANA_CON0, \ + .vsel_mask = GENMASK(3, 0), \ .enable_reg = enreg, \ .enable_mask = BIT(enbit), \ .min_uV = volt, \ + .uV_step = 10000, \ }, \ .status_reg = MT6358_LDO_##vreg##_CON1, \ .qi = BIT(15), \ @@ -219,10 +222,13 @@ struct mt6358_regulator_info { .type = REGULATOR_VOLTAGE, \ .id = MT6366_ID_##vreg, \ .owner = THIS_MODULE, \ - .n_voltages = 1, \ + .n_voltages = 11, \ + .vsel_reg = MT6358_##vreg##_ANA_CON0, \ + .vsel_mask = GENMASK(3, 0), \ .enable_reg = enreg, \ .enable_mask = BIT(enbit), \ .min_uV = volt, \ + .uV_step = 10000, \ }, \ .status_reg = MT6358_LDO_##vreg##_CON1, \ .qi = BIT(15), \ @@ -476,8 +482,13 @@ static const struct regulator_ops mt6358_volt_table_ops = { .get_status = mt6358_get_status, }; +/* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */ static const struct regulator_ops mt6358_volt_fixed_ops = { .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, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, -- 2.41.0.162.gfafddb0af9-goog
next prev parent reply other threads:[~2023-06-09 8:31 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-06-09 8:29 [PATCH 0/9] regulator: mt6358: Remove bogus regulators and improvements Chen-Yu Tsai 2023-06-09 8:29 ` Chen-Yu Tsai 2023-06-09 8:29 ` [PATCH 1/9] regulator: dt-bindings: mt6358: Merge ldo_vcn33_* regulators Chen-Yu Tsai 2023-06-09 8:29 ` Chen-Yu Tsai 2023-06-09 15:47 ` Matthias Brugger 2023-06-09 15:47 ` Matthias Brugger 2023-06-09 16:02 ` Krzysztof Kozlowski 2023-06-09 16:02 ` Krzysztof Kozlowski 2023-06-09 8:29 ` [PATCH 2/9] regulator: dt-bindings: mt6358: Drop *_sshub regulators Chen-Yu Tsai 2023-06-09 8:29 ` Chen-Yu Tsai 2023-06-09 15:47 ` Matthias Brugger 2023-06-09 15:47 ` Matthias Brugger 2023-06-09 16:02 ` Krzysztof Kozlowski 2023-06-09 16:02 ` Krzysztof Kozlowski 2023-06-09 8:30 ` [PATCH 3/9] regulator: mt6358: Merge VCN33_* regulators Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai 2023-06-09 8:58 ` AngeloGioacchino Del Regno 2023-06-09 8:58 ` AngeloGioacchino Del Regno 2023-06-12 3:41 ` Chen-Yu Tsai 2023-06-09 15:56 ` Conor Dooley 2023-06-09 15:56 ` Conor Dooley 2023-06-10 15:28 ` Conor Dooley 2023-06-12 4:19 ` Chen-Yu Tsai 2023-06-12 17:34 ` Conor Dooley 2023-06-12 17:34 ` Conor Dooley 2023-06-12 10:56 ` Fei Shao 2023-06-15 7:37 ` Chen-Yu Tsai 2023-06-15 7:37 ` Chen-Yu Tsai 2023-06-09 8:30 ` [PATCH 4/9] regulator: mt6358: Drop *_SSHUB regulators Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai 2023-06-09 9:03 ` AngeloGioacchino Del Regno 2023-06-09 9:03 ` AngeloGioacchino Del Regno 2023-06-12 4:45 ` Chen-Yu Tsai 2023-06-12 18:13 ` Mark Brown 2023-06-12 18:13 ` Mark Brown 2023-06-14 7:39 ` AngeloGioacchino Del Regno 2023-06-14 7:39 ` AngeloGioacchino Del Regno 2023-06-09 15:52 ` Matthias Brugger 2023-06-09 15:52 ` Matthias Brugger 2023-06-09 8:30 ` [PATCH 5/9] regulator: mt6358: Const-ify mt6358_regulator_info data structures Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai 2023-06-09 8:30 ` [PATCH 6/9] regulator: mt6358: Use linear voltage helpers for single range regulators Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai [this message] 2023-06-09 8:30 ` [PATCH 7/9] regulator: mt6358: Add output voltage fine tuning to fixed regulators Chen-Yu Tsai 2023-06-09 10:03 ` AngeloGioacchino Del Regno 2023-06-09 10:03 ` AngeloGioacchino Del Regno 2023-06-14 16:14 ` Mark Brown 2023-06-14 16:14 ` Mark Brown 2023-06-15 3:24 ` Chen-Yu Tsai 2023-06-15 3:24 ` Chen-Yu Tsai 2023-06-09 8:30 ` [PATCH 8/9] regulator: mt6358: Add output voltage fine tuning to variable LDOs Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai 2023-06-09 10:03 ` AngeloGioacchino Del Regno 2023-06-09 10:03 ` AngeloGioacchino Del Regno 2023-06-09 8:30 ` [PATCH 9/9] arm64: dts: mediatek: mt6358: Merge ldo_vcn33_* regulators Chen-Yu Tsai 2023-06-09 8:30 ` Chen-Yu Tsai 2023-06-14 18:58 ` (subset) [PATCH 0/9] regulator: mt6358: Remove bogus regulators and improvements Mark Brown 2023-06-14 18:58 ` Mark Brown 2023-06-09 14:05 [PATCH 7/9] regulator: mt6358: Add output voltage fine tuning to fixed regulators kernel test robot
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