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Date: Tue, 3 May 2022 12:39:37 -0700 From: Stephen Boyd <swboyd@...omium.org> To: Jonathan Cameron <jic23@...nel.org> Cc: linux-kernel@...r.kernel.org, patches@...ts.linux.dev, devicetree@...r.kernel.org, linux-iio@...r.kernel.org, Gwendal Grignou <gwendal@...omium.org>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org> Subject: [PATCH v2 2/2] iio: sx9324: Add setting for CS idle mode Based on device tree setting, set the CS idle mode. Reviewed-by: Gwendal Grignou <gwendal@...omium.org> Signed-off-by: Stephen Boyd <swboyd@...omium.org> --- drivers/iio/proximity/sx9324.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/iio/proximity/sx9324.c b/drivers/iio/proximity/sx9324.c index 7f367f63e362..c7fc75f7badc 100644 --- a/drivers/iio/proximity/sx9324.c +++ b/drivers/iio/proximity/sx9324.c @@ -57,6 +57,11 @@ GENMASK(SX9324_REG_AFE_CTRL0_RINT_SHIFT + 1, \ SX9324_REG_AFE_CTRL0_RINT_SHIFT) #define SX9324_REG_AFE_CTRL0_RINT_LOWEST 0x00 +#define SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT 4 +#define SX9324_REG_AFE_CTRL0_CSIDLE_MASK \ + GENMASK(SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT + 1, \ + SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT) +#define SX9324_REG_AFE_CTRL0_RINT_LOWEST 0x00 #define SX9324_REG_AFE_CTRL1 0x21 #define SX9324_REG_AFE_CTRL2 0x22 #define SX9324_REG_AFE_CTRL3 0x23 @@ -872,6 +877,8 @@ sx9324_get_default_reg(struct device *dev, int idx, { static const char * const sx9324_rints[] = { "lowest", "low", "high", "highest" }; + static const char * const sx9324_csidle[] = { "hi-z", "hi-z", "gnd", + "vdd" }; #define SX9324_PIN_DEF "semtech,ph0-pin" #define SX9324_RESOLUTION_DEF "semtech,ph01-resolution" #define SX9324_PROXRAW_DEF "semtech,ph01-proxraw-strength" @@ -901,6 +908,15 @@ sx9324_get_default_reg(struct device *dev, int idx, reg_def->def = raw; break; case SX9324_REG_AFE_CTRL0: + ret = device_property_read_string(dev, + "semtech,cs-idle-sleep", &res); + if (!ret) + ret = match_string(sx9324_csidle, ARRAY_SIZE(sx9324_csidle), res); + if (ret >= 0) { + reg_def->def &= ~SX9324_REG_AFE_CTRL0_CSIDLE_MASK; + reg_def->def |= ret << SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT; + } + ret = device_property_read_string(dev, "semtech,int-comp-resistor", &res); if (ret) -- https://chromeos.dev
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