From ca12806457d1863ec4d4bf23e62213c40769506a Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Tue, 10 Sep 2019 12:03:32 +0800 Subject: [PATCH 280/484] iio: adc: axp20x_adc: allow to set TS pin to GPADC mode The TS pin of AXP PMICs can be set to GPADC mode. In this situation, it doesn't affect battery charging. Add the code to do the mode setting. Signed-off-by: Icenowy Zheng --- drivers/iio/adc/axp20x_adc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c index 9fd7027623d0..50eef565df2c 100644 --- a/drivers/iio/adc/axp20x_adc.c +++ b/drivers/iio/adc/axp20x_adc.c @@ -58,6 +58,7 @@ #define AXP813_TS_GPIO0_ADC_RATE_HZ(x) AXP20X_ADC_RATE_HZ(x) #define AXP813_V_I_ADC_RATE_HZ(x) ((ilog2((x) / 100) << 4) & AXP813_V_I_ADC_RATE_MASK) #define AXP813_ADC_RATE_HZ(x) (AXP20X_ADC_RATE_HZ(x) | AXP813_V_I_ADC_RATE_HZ(x)) +#define AXP20X_TS_FUNCTION_GPADC BIT(2) #define AXP20X_ADC_CHANNEL(_channel, _name, _type, _reg) \ { \ @@ -1131,6 +1132,11 @@ static int axp20x_probe(struct platform_device *pdev) regmap_set_bits(info->regmap, info->data->adc_en2, info->data->adc_en2_mask); + if (of_property_read_bool(pdev->dev.of_node, "x-powers,ts-as-gpadc")) + regmap_update_bits(info->regmap, AXP20X_ADC_RATE, + AXP20X_TS_FUNCTION_GPADC, + AXP20X_TS_FUNCTION_GPADC); + /* Configure ADCs rate */ if (info->data->adc_rate) info->data->adc_rate(info, 100); -- 2.49.0