From: Chen-Yu Tsai <wenst@chromium.org> To: Lee Jones <lee@kernel.org>, 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 RESEND v2 5/7] regulator: mt6358: Add output voltage fine tuning to fixed regulators Date: Fri, 21 Jul 2023 16:28:57 +0800 [thread overview] Message-ID: <20230721082903.2038975-6-wenst@chromium.org> (raw) In-Reply-To: <20230721082903.2038975-1-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> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> --- 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 a1eae45f5fee..b34ad85db771 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, -- 2.41.0.487.g6d72f3e995-goog
WARNING: multiple messages have this Message-ID (diff)
From: Chen-Yu Tsai <wenst@chromium.org> To: Lee Jones <lee@kernel.org>, 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 RESEND v2 5/7] regulator: mt6358: Add output voltage fine tuning to fixed regulators Date: Fri, 21 Jul 2023 16:28:57 +0800 [thread overview] Message-ID: <20230721082903.2038975-6-wenst@chromium.org> (raw) In-Reply-To: <20230721082903.2038975-1-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> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> --- 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 a1eae45f5fee..b34ad85db771 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, -- 2.41.0.487.g6d72f3e995-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-07-21 8:30 UTC|newest] Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-07-21 8:28 [PATCH RESEND v2 0/7] regulator: mt6358: Remove bogus regulators and improvements Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:28 ` [PATCH RESEND v2 1/7] mfd: mt6358: Add missing registers for LDO voltage calibration Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:28 ` [PATCH RESEND v2 2/7] regulator: mt6358: Sync VCN33_* enable status after checking ID Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:28 ` [PATCH RESEND v2 3/7] regulator: mt6358: Fix incorrect VCN33 sync error message Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:28 ` [PATCH RESEND v2 4/7] regulator: mt6358: Fail probe on unknown chip ID Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:28 ` Chen-Yu Tsai [this message] 2023-07-21 8:28 ` [PATCH RESEND v2 5/7] regulator: mt6358: Add output voltage fine tuning to fixed regulators Chen-Yu Tsai 2023-07-21 8:28 ` [PATCH RESEND v2 6/7] regulator: mt6358: Add output voltage fine tuning to variable LDOs Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 18:47 ` kernel test robot 2023-07-21 19:59 ` kernel test robot 2023-07-21 8:28 ` [PATCH RESEND v2 7/7] arm64: dts: mediatek: mt6358: Merge ldo_vcn33_* regulators Chen-Yu Tsai 2023-07-21 8:28 ` Chen-Yu Tsai 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-21 8:53 ` AngeloGioacchino Del Regno 2023-07-24 12:14 ` (subset) [PATCH RESEND v2 0/7] regulator: mt6358: Remove bogus regulators and improvements Mark Brown
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