rk30:phone:Solve the power button interrupt failure

[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-rk30 / board-rk30-phone-twl60xx.c

diff --git a/arch/arm/mach-rk30/board-rk30-phone-twl60xx.c b/arch/arm/mach-rk30/board-rk30-phone-twl60xx.c
index aa12cf7d701534eb205ba3f993439ed9bb52e314..e4b54ef1577a9fe60847621bd129949dffee5894 100755 (executable)
--- a/arch/arm/mach-rk30/board-rk30-phone-twl60xx.c
+++ b/arch/arm/mach-rk30/board-rk30-phone-twl60xx.c
@@ -743,14 +743,16 @@ static struct twl4030_power_data tps80032_scripts_data __initdata = {
 void twl60xx_pmu_early_suspend(struct regulator_dev *rdev)
 {
        printk("%s\n", __func__);
-       
-       twl_reg_write(REG_INT_MSK_STS_A,TWL_MODULE_PIH, 0x00); //open vlow interrupt
+       int ret;
+       ret = twl_reg_read(REG_INT_MSK_STS_A,TWL_MODULE_PIH);
+       twl_reg_write(REG_INT_MSK_STS_A,TWL_MODULE_PIH, ret & (~(1 << 2))); //open vlow interrupt
 }
 void twl60xx_pmu_early_resume(struct regulator_dev *rdev)
 {
        printk("%s\n", __func__);
-
-       twl_reg_write(REG_INT_MSK_STS_A,TWL_MODULE_PIH, 0x04); //close vlow interrupt
+       int ret;
+       ret = twl_reg_read(REG_INT_MSK_STS_A,TWL_MODULE_PIH);
+       twl_reg_write(REG_INT_MSK_STS_A,TWL_MODULE_PIH, ret |(1 << 2)); //close vlow interrupt
 }
 #else
 void twl60xx_pmu_early_suspend(struct regulator_dev *rdev)