openwrt/target/linux/mvebu/patches-4.9/404-net-phy-restart-phy-autonegotiation-after-EEE-advert.patch
Koen Vandeputte cd54b2d42b kernel: update kernel 4.9 to 4.9.37
- Refreshed all patches
- Removed upstreamed
- Adapted 4 patches:

473-fix-marvell-phy-initialization-issues.patch
-----------------------------------------------
Removed hunk 5 which got upstreamed

403-net-phy-avoid-setting-unsupported-EEE-advertisments.patch
404-net-phy-restart-phy-autonegotiation-after-EEE-advert.patch
--------------------------------------------------------------
Adapted these 2 RFC patches, merging the delta's from an upstream commit
(see below) which made it before these 2.

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-
stable.git/commit/?h=v4.9.36&id=97ace183074d306942b903a148aebd5d061758f0

180-usb-xhci-add-support-for-performing-fake-doorbell.patch
-----------------------------------------------------------
- Moved fake_doorbell bitmask due to new item

Compile tested on: cns3xxx, imx6
Run tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-07-15 00:13:05 +02:00

54 lines
1.4 KiB
Diff

From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Jan 2017 12:21:09 +0000
Subject: [PATCH] net: phy: restart phy autonegotiation after EEE
advertisment change
When the EEE advertisment is changed, we should restart autonegotiation
to update the link partner with the new EEE settings. Add this trigger
but only if the advertisment has changed.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1343,19 +1343,36 @@ EXPORT_SYMBOL(phy_ethtool_get_eee);
*/
int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
{
- int cap, adv;
+ int cap, old_adv, adv, ret;
/* Get Supported EEE */
cap = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
if (cap < 0)
return cap;
+ old_adv = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
+ if (old_adv < 0)
+ return old_adv;
+
adv = ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap;
/* Mask prohibited EEE modes */
adv &= ~phydev->eee_broken_modes;
- return phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
+ if (old_adv != adv) {
+ ret = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
+ if (ret < 0)
+ return ret;
+
+ /* Restart autonegotiation so the new modes get sent to the
+ * link partner.
+ */
+ ret = phy_restart_aneg(phydev);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
}
EXPORT_SYMBOL(phy_ethtool_set_eee);