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[14/40] pm2301-charger: Die temp thermal protection

Message ID 1360932310-30065-15-git-send-email-lee.jones@linaro.org
State Accepted
Commit da9e83d496039458fe9863540cf52b3f9b450675
Headers show

Commit Message

Lee Jones Feb. 15, 2013, 12:44 p.m. UTC 
From: Rupesh Kumar <rupesh.kumar@stericsson.com>

This patch adds support for die temperature thermal protection
in pm2301 driver.

Signed-off-by: Rupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Hakan BERG <hakan.berg@stericsson.com>
Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
---
 drivers/power/pm2301_charger.c |   22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index 4cb8f7f..ec51026 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -876,7 +876,27 @@  static void pm2xxx_charger_check_hw_failure_work(struct work_struct *work)
 static void pm2xxx_charger_check_main_thermal_prot_work(
 	struct work_struct *work)
 {
-};
+	int ret;
+	u8 val;
+
+	struct pm2xxx_charger *pm2 = container_of(work, struct pm2xxx_charger,
+					check_main_thermal_prot_work);
+
+	/* Check if die temp warning is still active */
+	ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT5, &val);
+	if (ret < 0) {
+		dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__);
+		return;
+	}
+	if (val & (PM2XXX_INT5_S_ITTHERMALWARNINGRISE
+			| PM2XXX_INT5_S_ITTHERMALSHUTDOWNRISE))
+		pm2->flags.main_thermal_prot = true;
+	else if (val & (PM2XXX_INT5_S_ITTHERMALWARNINGFALL
+				| PM2XXX_INT5_S_ITTHERMALSHUTDOWNFALL))
+		pm2->flags.main_thermal_prot = false;
+
+	power_supply_changed(&pm2->ac_chg.psy);
+}
 
 static struct pm2xxx_interrupts pm2xxx_int = {
 	.handler[0] = pm2_int_reg0,