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authorHayes Wang <hayeswang@realtek.com>2020-01-22 16:02:11 +0800
committerDavid S. Miller <davem@davemloft.net>2020-01-23 11:20:57 +0100
commita0246dafe684a6d5ad31ccd59af0334ccf0cc7b2 (patch)
tree80fc7ee2c75e7c3f84231ca346cbd11a89040fe4 /drivers/net/usb
parentd7f1b59655efb5a285d227c8f9853a98eab5c2fd (diff)
downloadlinux-a0246dafe684a6d5ad31ccd59af0334ccf0cc7b2.tar.bz2
r8152: don't enable U1U2 with USB_SPEED_HIGH for RTL8153B
For certain platforms, it causes USB reset periodically. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
-rw-r--r--drivers/net/usb/r8152.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 7efeddad1fc8..b1a00f29455b 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3391,7 +3391,8 @@ static void rtl8153b_runtime_enable(struct r8152 *tp, bool enable)
r8153b_ups_en(tp, false);
r8153_queue_wake(tp, false);
rtl_runtime_suspend_enable(tp, false);
- r8153b_u1u2en(tp, true);
+ if (tp->udev->speed != USB_SPEED_HIGH)
+ r8153b_u1u2en(tp, true);
}
}
@@ -5024,7 +5025,9 @@ static void rtl8153b_up(struct r8152 *tp)
ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
r8153_aldps_en(tp, true);
- r8153b_u1u2en(tp, true);
+
+ if (tp->udev->speed != USB_SPEED_HIGH)
+ r8153b_u1u2en(tp, true);
}
static void rtl8153b_down(struct r8152 *tp)
@@ -5527,7 +5530,9 @@ static void r8153b_init(struct r8152 *tp)
ocp_data &= ~CUR_LINK_OK;
ocp_data |= POLL_LINK_CHG;
ocp_write_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS, ocp_data);
- r8153b_u1u2en(tp, true);
+
+ if (tp->udev->speed != USB_SPEED_HIGH)
+ r8153b_u1u2en(tp, true);
usb_enable_lpm(tp->udev);
/* MAC clock speed down */