From 4214cc550bf9d986699a072988503e33d3d3155d Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Fri, 9 Jun 2017 17:11:46 +0800
Subject: [PATCH] r8152: check if disabling ALDPS is finished
Git-commit: 4214cc550bf9d986699a072988503e33d3d3155d
Patch-mainline: v4.13-rc1
References: bsc#1119749
Use PLA 0xe000 bit 8 to check if disabling ALDPS is finished.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/usb/r8152.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index f43b7a8ecfff..204f4b2155ae 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;
+ }
}
}
--
2.19.2