Merge "hwmon: qpnp-adc-common: Clamp voltage value" (e7f64f18) · Commits · e / devices / android_kernel_sony_msm8998

drivers/hwmon/qpnp-adc-common.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,8 @@
		#define PMI_CHG_SCALE_2 391750000000
		#define QPNP_VADC_HC_VREF_CODE 0x4000
		#define QPNP_VADC_HC_VDD_REFERENCE_MV 1875
		/* Clamp negative ADC code to 0 */
		#define QPNP_VADC_HC_MAX_CODE 0x7FFF

		/* Units for temperature below (on x axis) is in 0.1DegC as
		required by the battery driver. Note the resolution used
		@@ -752,6 +754,8 @@ int32_t qpnp_adc_scale_pmic_therm(struct qpnp_vadc_chip *vadc,

		if (adc_properties->adc_hc) {
		/* (ADC code * vref_vadc (1.875V)) / 0x4000 */
		if (adc_code > QPNP_VADC_HC_MAX_CODE)
		adc_code = 0;
		pmic_voltage = (int64_t) adc_code;
		pmic_voltage *= (int64_t) (adc_properties->adc_vdd_reference
		* 1000);
		@@ -862,6 +866,8 @@ int32_t qpnp_adc_tdkntcg_therm(struct qpnp_vadc_chip *chip,

		if (adc_properties->adc_hc) {
		/* (ADC code * vref_vadc (1.875V) * 1000) / (0x4000 * 1000) */
		if (adc_code > QPNP_VADC_HC_MAX_CODE)
		adc_code = 0;
		xo_thm_voltage = (int64_t) adc_code;
		xo_thm_voltage *= (int64_t) (adc_properties->adc_vdd_reference
		* 1000);
		@@ -1059,6 +1065,8 @@ int32_t qpnp_adc_scale_therm_pu2(struct qpnp_vadc_chip *chip,

		if (adc_properties->adc_hc) {
		/* (ADC code * vref_vadc (1.875V) * 1000) / (0x4000 * 1000) */
		if (adc_code > QPNP_VADC_HC_MAX_CODE)
		adc_code = 0;
		therm_voltage = (int64_t) adc_code;
		therm_voltage *= (int64_t) (adc_properties->adc_vdd_reference
		* 1000);
		@@ -1094,6 +1102,8 @@ int32_t qpnp_adc_tm_scale_voltage_therm_pu2(struct qpnp_vadc_chip *chip,

		if (adc_properties->adc_hc) {
		/* (ADC code * vref_vadc (1.875V)) / 0x4000 */
		if (reg > QPNP_VADC_HC_MAX_CODE)
		reg = 0;
		adc_voltage = (int64_t) reg;
		adc_voltage *= QPNP_VADC_HC_VDD_REFERENCE_MV;
		adc_voltage = div64_s64(adc_voltage,
		@@ -1228,6 +1238,8 @@ int32_t qpnp_adc_scale_default(struct qpnp_vadc_chip *vadc,

		if (adc_properties->adc_hc) {
		/* (ADC code * vref_vadc (1.875V)) / 0x4000 */
		if (adc_code > QPNP_VADC_HC_MAX_CODE)
		adc_code = 0;
		scale_voltage = (int64_t) adc_code;
		scale_voltage = (adc_properties->adc_vdd_reference 1000);
		scale_voltage = div64_s64(scale_voltage,