From 7fe9089bd7a76548bd6161561062a133b5d473da Mon Sep 17 00:00:00 2001 From: Chris Healy Date: Mon, 30 Jan 2023 15:14:02 -0800 Subject: [PATCH] net: phy: meson-gxl: Add generic dummy stubs for MMD register access commit afc2336f89dc0fc0ef25b92366814524b0fd90fb upstream. The Meson G12A Internal PHY does not support standard IEEE MMD extended register access, therefore add generic dummy stubs to fail the read and write MMD calls. This is necessary to prevent the core PHY code from erroneously believing that EEE is supported by this PHY even though this PHY does not support EEE, as MMD register access returns all FFFFs. Fixes: 5c3407abb338 ("net: phy: meson-gxl: add g12a support") Reviewed-by: Heiner Kallweit Signed-off-by: Chris Healy Reviewed-by: Jerome Brunet Link: https://lore.kernel.org/r/20230130231402.471493-1-cphealy@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/phy/meson-gxl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/phy/meson-gxl.c b/drivers/net/phy/meson-gxl.c index b6436e7dabbc..75546829b86b 100644 --- a/drivers/net/phy/meson-gxl.c +++ b/drivers/net/phy/meson-gxl.c @@ -258,6 +258,8 @@ static struct phy_driver meson_gxl_phy[] = { .config_intr = meson_gxl_config_intr, .suspend = genphy_suspend, .resume = genphy_resume, + .read_mmd = genphy_read_mmd_unsupported, + .write_mmd = genphy_write_mmd_unsupported, }, };