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r8152: check if disabling ALDPS is finished 

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>
hifive-unleashed-5.1
hayeswang 2017-06-09 17:11:46 +08:00 committed by David S. Miller
parent befb2de181
commit 4214cc550b
1 changed files with 7 additions and 1 deletions
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8
drivers/net/usb/r8152.c
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@ -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;
}
}
}