Merge "power: qpnp-linear-charger: Add over temperature irq handler" (3da6a81e) · Commits · e / devices / android_kernel_sony_msm8994

drivers/power/qpnp-linear-charger.c

+31 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@
		/* Interrupt offsets */
		#define INT_RT_STS_REG 0x10
		#define FAST_CHG_ON_IRQ BIT(5)
		#define OVERTEMP_ON_IRQ BIT(4)
		#define BAT_TEMP_OK_IRQ BIT(1)
		#define BATT_PRES_IRQ BIT(0)

		@@ -1788,6 +1789,33 @@ static irqreturn_t qpnp_lbc_vbatdet_lo_irq_handler(int irq, void *_chip)
		return IRQ_HANDLED;
		}

		static int qpnp_lbc_is_overtemp(struct qpnp_lbc_chip *chip)
		{
		u8 reg_val;
		int rc;

		rc = qpnp_lbc_read(chip, chip->usb_chgpth_base + INT_RT_STS_REG,
		&reg_val, 1);
		if (rc) {
		pr_err("Failed to read interrupt status rc=%d\n", rc);
		return rc;
		}

		pr_debug("OVERTEMP rt status %x\n", reg_val);
		return (reg_val & OVERTEMP_ON_IRQ) ? 1 : 0;
		}

		static irqreturn_t qpnp_lbc_usb_overtemp_irq_handler(int irq, void *_chip)
		{
		struct qpnp_lbc_chip *chip = _chip;
		int overtemp = qpnp_lbc_is_overtemp(chip);

		pr_warn_ratelimited("charger %s temperature limit !!!\n",
		overtemp ? "exceeds" : "within");

		return IRQ_HANDLED;
		}

		#define SPMI_REQUEST_IRQ(chip, idx, rc, irq_name, threaded, flags, wake)\
		do { \
		if (rc) \
		@@ -1854,6 +1882,9 @@ static int qpnp_lbc_request_irqs(struct qpnp_lbc_chip *chip)
		SPMI_REQUEST_IRQ(chip, USBIN_VALID, rc, usbin_valid, 0,
		IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING, 1);

		SPMI_REQUEST_IRQ(chip, USB_OVER_TEMP, rc, usb_overtemp, 0,
		IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING, 0);

		return 0;
		}