From patchwork Wed Jan 23 04:42:46 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3.5.y.z, extended, stable] Patch "regulator: max8998: Use uV in voltage_map_desc" has been added to staging queue Date: Tue, 22 Jan 2013 18:42:46 -0000 From: Herton Ronaldo Krzesinski X-Patchwork-Id: 214761 Message-Id: <1358916166-22923-1-git-send-email-herton.krzesinski@canonical.com> To: Axel Lin Cc: kernel-team@lists.ubuntu.com, Mark Brown This is a note to let you know that I have just added a patch titled regulator: max8998: Use uV in voltage_map_desc to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ >From ce6303022de7a107c9bf03d276314611c5286dec Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 28 Dec 2012 17:10:20 +0800 Subject: [PATCH] regulator: max8998: Use uV in voltage_map_desc commit adf6178ad5552a7f2f742a8c85343c50f080c412 upstream. Integer division may truncate. This happens when pdata->buckx_voltagex setting is not align with 1000 uV. Thus use uV in voltage_map_desc, this ensures the selected voltage won't less than pdata buckx_voltagex settings. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Signed-off-by: Herton Ronaldo Krzesinski --- drivers/regulator/max8998.c | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) -- 1.7.9.5 diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index a1fa266..5e56df0 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -51,39 +51,39 @@ struct voltage_map_desc { int step; }; -/* Voltage maps */ +/* Voltage maps in uV*/ static const struct voltage_map_desc ldo23_voltage_map_desc = { - .min = 800, .step = 50, .max = 1300, + .min = 800000, .step = 50000, .max = 1300000, }; static const struct voltage_map_desc ldo456711_voltage_map_desc = { - .min = 1600, .step = 100, .max = 3600, + .min = 1600000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc ldo8_voltage_map_desc = { - .min = 3000, .step = 100, .max = 3600, + .min = 3000000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc ldo9_voltage_map_desc = { - .min = 2800, .step = 100, .max = 3100, + .min = 2800000, .step = 100000, .max = 3100000, }; static const struct voltage_map_desc ldo10_voltage_map_desc = { - .min = 950, .step = 50, .max = 1300, + .min = 95000, .step = 50000, .max = 1300000, }; static const struct voltage_map_desc ldo1213_voltage_map_desc = { - .min = 800, .step = 100, .max = 3300, + .min = 800000, .step = 100000, .max = 3300000, }; static const struct voltage_map_desc ldo1415_voltage_map_desc = { - .min = 1200, .step = 100, .max = 3300, + .min = 1200000, .step = 100000, .max = 3300000, }; static const struct voltage_map_desc ldo1617_voltage_map_desc = { - .min = 1600, .step = 100, .max = 3600, + .min = 1600000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc buck12_voltage_map_desc = { - .min = 750, .step = 25, .max = 1525, + .min = 750000, .step = 25000, .max = 1525000, }; static const struct voltage_map_desc buck3_voltage_map_desc = { - .min = 1600, .step = 100, .max = 3600, + .min = 1600000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc buck4_voltage_map_desc = { - .min = 800, .step = 100, .max = 2300, + .min = 800000, .step = 100000, .max = 2300000, }; static const struct voltage_map_desc *ldo_voltage_map[] = { @@ -445,7 +445,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, if (max8998->iodev->type == TYPE_MAX8998 && !(val & MAX8998_ENRAMP)) return 0; - difference = (new_selector - old_selector) * desc->step; + difference = (new_selector - old_selector) * desc->step / 1000; if (difference > 0) return difference / ((val & 0x0f) + 1); @@ -708,7 +708,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage1 / 1000)) + < pdata->buck1_voltage1) i++; max8998->buck1_vol[0] = i; ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE1, i); @@ -719,7 +719,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage2 / 1000)) + < pdata->buck1_voltage2) i++; max8998->buck1_vol[1] = i; @@ -731,7 +731,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage3 / 1000)) + < pdata->buck1_voltage3) i++; max8998->buck1_vol[2] = i; @@ -743,7 +743,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage4 / 1000)) + < pdata->buck1_voltage4) i++; max8998->buck1_vol[3] = i; @@ -769,7 +769,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck2_voltage1 / 1000)) + < pdata->buck2_voltage1) i++; max8998->buck2_vol[0] = i; ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE1, i); @@ -780,7 +780,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck2_voltage2 / 1000)) + < pdata->buck2_voltage2) i++; max8998->buck2_vol[1] = i; ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE2, i); @@ -798,8 +798,8 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev) int count = (desc->max - desc->min) / desc->step + 1; regulators[index].n_voltages = count; - regulators[index].min_uV = desc->min * 1000; - regulators[index].uV_step = desc->step * 1000; + regulators[index].min_uV = desc->min; + regulators[index].uV_step = desc->step; } config.dev = max8998->dev;