diff mbox series

[v2,net] net: phy: meson-gxl: use MMD access dummy stubs for GXL, internal PHY

Message ID 84432fe4-0be4-bc82-4e5c-557206b40f56@gmail.com (mailing list archive)
State New, archived
Headers show
Series [v2,net] net: phy: meson-gxl: use MMD access dummy stubs for GXL, internal PHY | expand

Commit Message

Heiner Kallweit Feb. 2, 2023, 8:45 p.m. UTC
Jerome provided the information that also the GXL internal PHY doesn't
support MMD register access and EEE. MMD reads return 0xffff, what
results in e.g. completely wrong ethtool --show-eee output.
Therefore use the MMD dummy stubs.

v2:
- Change Fixes tag to the actually offending commit. As 4.9 is EOL
  this fix will apply on all stable versions.

Fixes: d853d145ea3e ("net: phy: add an option to disable EEE advertisement")
Suggested-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/phy/meson-gxl.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

patchwork-bot+netdevbpf@kernel.org Feb. 4, 2023, 4 a.m. UTC | #1
Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Thu, 2 Feb 2023 21:45:36 +0100 you wrote:
> Jerome provided the information that also the GXL internal PHY doesn't
> support MMD register access and EEE. MMD reads return 0xffff, what
> results in e.g. completely wrong ethtool --show-eee output.
> Therefore use the MMD dummy stubs.
> 
> v2:
> - Change Fixes tag to the actually offending commit. As 4.9 is EOL
>   this fix will apply on all stable versions.
> 
> [...]

Here is the summary with links:
  - [v2,net] net: phy: meson-gxl: use MMD access dummy stubs for GXL, internal PHY
    https://git.kernel.org/netdev/net/c/69ff53e4a4c9

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/phy/meson-gxl.c b/drivers/net/phy/meson-gxl.c
index c49062ad7..fbf5f2416 100644
--- a/drivers/net/phy/meson-gxl.c
+++ b/drivers/net/phy/meson-gxl.c
@@ -261,6 +261,8 @@  static struct phy_driver meson_gxl_phy[] = {
 		.handle_interrupt = meson_gxl_handle_interrupt,
 		.suspend        = genphy_suspend,
 		.resume         = genphy_resume,
+		.read_mmd	= genphy_read_mmd_unsupported,
+		.write_mmd	= genphy_write_mmd_unsupported,
 	}, {
 		PHY_ID_MATCH_EXACT(0x01803301),
 		.name		= "Meson G12A Internal PHY",