| Message ID | 20220311164628.378849-6-gengcixi@gmail.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | iio: adc: sc27xx: adjust structure and add PMIC's support | expand |
On Sat, Mar 12, 2022 at 12:47 AM Cixi Geng <gengcixi@gmail.com> wrote: > > From: Cixi Geng <cixi.geng1@unisoc.com> > > sc2730 is the product of sc27xx series. > > Signed-off-by: Yuming Zhu <yuming.zhu1@unisoc.com> > Signed-off-by: Cixi Geng <cixi.geng1@unisoc.com> > --- > drivers/iio/adc/sc27xx_adc.c | 108 ++++++++++++++++++++++++++++++++++- > 1 file changed, 107 insertions(+), 1 deletion(-) > > diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c > index 2603ce313b07..b89637c051ac 100644 > --- a/drivers/iio/adc/sc27xx_adc.c > +++ b/drivers/iio/adc/sc27xx_adc.c > @@ -13,9 +13,11 @@ > #include <linux/slab.h> > > /* PMIC global registers definition */ > +#define SC2730_MODULE_EN 0x1808 > #define SC2731_MODULE_EN 0xc08 > #define SC27XX_MODULE_ADC_EN BIT(5) > #define SC2721_ARM_CLK_EN 0xc0c > +#define SC2730_ARM_CLK_EN 0x180c > #define SC2731_ARM_CLK_EN 0xc10 > #define SC27XX_CLK_ADC_EN BIT(5) > #define SC27XX_CLK_ADC_CLK_EN BIT(6) > @@ -293,6 +295,80 @@ static int sc2721_adc_get_ratio(int channel, int scale) > return SC27XX_VOLT_RATIO(1, 1); > } > > +static int sc2730_adc_get_ratio(int channel, int scale) > +{ > + switch (channel) { > + case 14: > + switch (scale) { > + case 0: > + return SC27XX_VOLT_RATIO(68, 900); > + case 1: > + return SC27XX_VOLT_RATIO(68, 1760); > + case 2: > + return SC27XX_VOLT_RATIO(68, 2327); > + case 3: > + return SC27XX_VOLT_RATIO(68, 3654); > + default: > + return SC27XX_VOLT_RATIO(1, 1); > + } > + case 15: > + switch (scale) { > + case 0: > + return SC27XX_VOLT_RATIO(1, 3); > + case 1: > + return SC27XX_VOLT_RATIO(1000, 5865); > + case 2: > + return SC27XX_VOLT_RATIO(500, 3879); > + case 3: > + return SC27XX_VOLT_RATIO(500, 6090); > + default: > + return SC27XX_VOLT_RATIO(1, 1); > + } > + case 16: > + switch (scale) { > + case 0: > + return SC27XX_VOLT_RATIO(48, 100); > + case 1: > + return SC27XX_VOLT_RATIO(480, 1955); > + case 2: > + return SC27XX_VOLT_RATIO(480, 2586); > + case 3: > + return SC27XX_VOLT_RATIO(48, 406); > + default: > + return SC27XX_VOLT_RATIO(1, 1); > + } > + case 21: > + case 22: > + case 23: > + switch (scale) { > + case 0: > + return SC27XX_VOLT_RATIO(3, 8); > + case 1: > + return SC27XX_VOLT_RATIO(375, 1955); > + case 2: > + return SC27XX_VOLT_RATIO(375, 2586); > + case 3: > + return SC27XX_VOLT_RATIO(300, 3248); > + default: > + return SC27XX_VOLT_RATIO(1, 1); > + } > + default: > + switch (scale) { > + case 0: > + return SC27XX_VOLT_RATIO(1, 1); > + case 1: > + return SC27XX_VOLT_RATIO(1000, 1955); > + case 2: > + return SC27XX_VOLT_RATIO(1000, 2586); > + case 3: > + return SC27XX_VOLT_RATIO(1000, 4060); > + default: > + return SC27XX_VOLT_RATIO(1, 1); > + } > + } > + return SC27XX_VOLT_RATIO(1, 1); > +} > + > static int sc2731_adc_get_ratio(int channel, int scale) > { > switch (channel) { > @@ -349,6 +425,22 @@ static void sc2720_adc_scale_init(struct sc27xx_adc_data *data) > } > } > > +static void sc2730_adc_scale_init(struct sc27xx_adc_data *data) > +{ > + int i; > + > + for (i = 0; i < SC27XX_ADC_CHANNEL_MAX; i++) { > + if (i == 5 || i == 10 || i == 19 || i == 30 || i == 31) > + data->channel_scale[i] = 3; > + else if (i == 7 || i == 9) > + data->channel_scale[i] = 2; > + else if (i == 13) > + data->channel_scale[i] = 1; > + else > + data->channel_scale[i] = 0; > + } > +} > + > static void sc2731_adc_scale_init(struct sc27xx_adc_data *data) > { > int i; > @@ -449,7 +541,8 @@ static int sc27xx_adc_read(struct sc27xx_adc_data *data, int channel, > SC27XX_ADC_REFVOL_VDD28, > SC27XX_ADC_REFVOL_VDD28); > if (ret_volref) { > - dev_err(data->dev, "failed to set the volref 2.8V, ret_volref = 0x%x\n,ret_volref"); > + dev_err(data->dev, "failed to set the volref 2.8V, ret_volref = 0x%x\n", > + ret_volref); Do not add unrelated changes in this patch.
diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c index 2603ce313b07..b89637c051ac 100644 --- a/drivers/iio/adc/sc27xx_adc.c +++ b/drivers/iio/adc/sc27xx_adc.c @@ -13,9 +13,11 @@ #include <linux/slab.h> /* PMIC global registers definition */ +#define SC2730_MODULE_EN 0x1808 #define SC2731_MODULE_EN 0xc08 #define SC27XX_MODULE_ADC_EN BIT(5) #define SC2721_ARM_CLK_EN 0xc0c +#define SC2730_ARM_CLK_EN 0x180c #define SC2731_ARM_CLK_EN 0xc10 #define SC27XX_CLK_ADC_EN BIT(5) #define SC27XX_CLK_ADC_CLK_EN BIT(6) @@ -293,6 +295,80 @@ static int sc2721_adc_get_ratio(int channel, int scale) return SC27XX_VOLT_RATIO(1, 1); } +static int sc2730_adc_get_ratio(int channel, int scale) +{ + switch (channel) { + case 14: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(68, 900); + case 1: + return SC27XX_VOLT_RATIO(68, 1760); + case 2: + return SC27XX_VOLT_RATIO(68, 2327); + case 3: + return SC27XX_VOLT_RATIO(68, 3654); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + case 15: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(1, 3); + case 1: + return SC27XX_VOLT_RATIO(1000, 5865); + case 2: + return SC27XX_VOLT_RATIO(500, 3879); + case 3: + return SC27XX_VOLT_RATIO(500, 6090); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + case 16: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(48, 100); + case 1: + return SC27XX_VOLT_RATIO(480, 1955); + case 2: + return SC27XX_VOLT_RATIO(480, 2586); + case 3: + return SC27XX_VOLT_RATIO(48, 406); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + case 21: + case 22: + case 23: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(3, 8); + case 1: + return SC27XX_VOLT_RATIO(375, 1955); + case 2: + return SC27XX_VOLT_RATIO(375, 2586); + case 3: + return SC27XX_VOLT_RATIO(300, 3248); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + default: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(1, 1); + case 1: + return SC27XX_VOLT_RATIO(1000, 1955); + case 2: + return SC27XX_VOLT_RATIO(1000, 2586); + case 3: + return SC27XX_VOLT_RATIO(1000, 4060); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + } + return SC27XX_VOLT_RATIO(1, 1); +} + static int sc2731_adc_get_ratio(int channel, int scale) { switch (channel) { @@ -349,6 +425,22 @@ static void sc2720_adc_scale_init(struct sc27xx_adc_data *data) } } +static void sc2730_adc_scale_init(struct sc27xx_adc_data *data) +{ + int i; + + for (i = 0; i < SC27XX_ADC_CHANNEL_MAX; i++) { + if (i == 5 || i == 10 || i == 19 || i == 30 || i == 31) + data->channel_scale[i] = 3; + else if (i == 7 || i == 9) + data->channel_scale[i] = 2; + else if (i == 13) + data->channel_scale[i] = 1; + else + data->channel_scale[i] = 0; + } +} + static void sc2731_adc_scale_init(struct sc27xx_adc_data *data) { int i; @@ -449,7 +541,8 @@ static int sc27xx_adc_read(struct sc27xx_adc_data *data, int channel, SC27XX_ADC_REFVOL_VDD28, SC27XX_ADC_REFVOL_VDD28); if (ret_volref) { - dev_err(data->dev, "failed to set the volref 2.8V, ret_volref = 0x%x\n,ret_volref"); + dev_err(data->dev, "failed to set the volref 2.8V, ret_volref = 0x%x\n", + ret_volref); ret = ret || ret_volref; } } @@ -695,6 +788,18 @@ static const struct sc27xx_adc_variant_data sc2731_data = { .get_ratio = sc2731_adc_get_ratio, }; +static const struct sc27xx_adc_variant_data sc2730_data = { + .pmic_type = SC27XX_ADC, + .module_en = SC2730_MODULE_EN, + .clk_en = SC2730_ARM_CLK_EN, + .scale_shift = SC27XX_ADC_SCALE_SHIFT, + .scale_mask = SC27XX_ADC_SCALE_MASK, + .bscale_cal = &big_scale_graph_calib, + .sscale_cal = &small_scale_graph_calib, + .init_scale = sc2730_adc_scale_init, + .get_ratio = sc2730_adc_get_ratio, +}; + static const struct sc27xx_adc_variant_data sc2721_data = { .pmic_type = SC2721_ADC, .module_en = SC2731_MODULE_EN, @@ -809,6 +914,7 @@ static int sc27xx_adc_probe(struct platform_device *pdev) static const struct of_device_id sc27xx_adc_of_match[] = { { .compatible = "sprd,sc2731-adc", .data = &sc2731_data}, + { .compatible = "sprd,sc2730-adc", .data = &sc2730_data}, { .compatible = "sprd,sc2721-adc", .data = &sc2721_data}, { .compatible = "sprd,sc2720-adc", .data = &sc2720_data}, { }