[PATCH] power: pmic: rk8xx: Don't set RK817_POWER_EN_SAVE bits

[Chris Morgan <macroalpha82@gmail.com>]

From: Chris Morgan <macromorgan@hotmail.com>

Don't set the RK817_POWER_EN_SAVE0 or RK817_POWER_EN_SAVE1 bits. These
bits are not used by mainline Linux and actively setting them in U-boot
interferes with their function for BSP kernels, causing systems to
hang when regulators are enabled or disabled incorrectly. [1]

[1] https://gist.github.com/fr0z3n-cs/047b24a6fd430e816fe02a877ad7ab8c

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 drivers/power/pmic/rk8xx.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c
index 95b71d2fe49..16b3dc7cb1c 100644
--- a/drivers/power/pmic/rk8xx.c
+++ b/drivers/power/pmic/rk8xx.c
@@ -251,8 +251,6 @@ static int rk8xx_probe(struct udevice *dev)
 	int ret = 0, i, show_variant;
 	u8 msb, lsb, id_msb, id_lsb;
 	u8 on_source = 0, off_source = 0;
-	u8 power_en0, power_en1, power_en2, power_en3;
-	u8 value;
 
 	/* read Chip variant */
 	if (device_is_compatible(dev, "rockchip,rk817") ||
@@ -293,15 +291,6 @@ static int rk8xx_probe(struct udevice *dev)
 		off_source = RK817_OFF_SOURCE;
 		init_data = rk817_init_reg;
 		init_data_num = ARRAY_SIZE(rk817_init_reg);
-		power_en0 = pmic_reg_read(dev, RK817_POWER_EN0);
-		power_en1 = pmic_reg_read(dev, RK817_POWER_EN1);
-		power_en2 = pmic_reg_read(dev, RK817_POWER_EN2);
-		power_en3 = pmic_reg_read(dev, RK817_POWER_EN3);
-
-		value = (power_en0 & 0x0f) | ((power_en1 & 0x0f) << 4);
-		pmic_reg_write(dev, RK817_POWER_EN_SAVE0, value);
-		value = (power_en2 & 0x0f) | ((power_en3 & 0x0f) << 4);
-		pmic_reg_write(dev, RK817_POWER_EN_SAVE1, value);
 		break;
 	case RK806_ID: {
 		u32 rst_fun = 2;
-- 
2.53.0