diff mbox

[net-next,09/11] r8152: check if disabling ALDPS is finished

Message ID 1394712342-15778-269-Taiwan-albertk@realtek.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Hayes Wang June 9, 2017, 9:11 a.m. UTC 
Use PLA 0xe000 bit 8 to check if disabling ALDPS is finished.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
---
 drivers/net/usb/r8152.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index f43b7a8..204f4b2 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2836,9 +2836,15 @@  static void r8153_aldps_en(struct r8152 *tp, bool enable)
 		data |= EN_ALDPS;
 		ocp_reg_write(tp, OCP_POWER_CFG, data);
 	} else {
+		int i;
+
 		data &= ~EN_ALDPS;
 		ocp_reg_write(tp, OCP_POWER_CFG, data);
-		msleep(20);
+		for (i = 0; i < 20; i++) {
+			usleep_range(1000, 2000);
+			if (ocp_read_word(tp, MCU_TYPE_PLA, 0xe000) & 0x0100)
+				break;
+		}
 	}
 }