[RFCv1 4/8] mfd: rk808: use syscore for RK818 PMIC shutdown

[Anand Moon <linux.amoon@gmail.com>]

Use common syscore_shutdown for RK818 PMIC to do
clean I2C shutdown, drop the unused pm_pwroff_fn
function pointers.

Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/mfd/rk808.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 0a098fbdf112..4b3b90dad4f8 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -467,11 +467,6 @@ static void rk808_update_bits(unsigned int reg, unsigned int mask,
 			"can't write to register 0x%x: %x!\n", reg, ret);
 }
 
-static void rk818_device_shutdown(void)
-{
-	rk808_update_bits(RK818_DEVCTRL_REG, DEV_OFF, DEV_OFF);
-}
-
 static void rk8xx_syscore_shutdown(void)
 {
 	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
@@ -494,6 +489,9 @@ static void rk8xx_syscore_shutdown(void)
 			rk808_update_bits(RK817_SYS_CFG(3),
 					RK817_SLPPIN_FUNC_MSK, SLPPIN_DN_FUN);
 			break;
+		case RK818_ID:
+			rk808_update_bits(RK818_DEVCTRL_REG, DEV_OFF, DEV_OFF);
+			break;
 		default:
 			break;
 		}
@@ -583,7 +581,6 @@ static int rk808_probe(struct i2c_client *client,
 		nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
 		cells = rk818s;
 		nr_cells = ARRAY_SIZE(rk818s);
-		rk808->pm_pwroff_fn = rk818_device_shutdown;
 		break;
 	case RK809_ID:
 	case RK817_ID:
-- 
2.24.0