diff options
Diffstat (limited to 'target/linux/ipq806x/patches-5.15/108-v5.14-net-stmmac-explicitly-deassert-gmac-ahb-reset.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.15/108-v5.14-net-stmmac-explicitly-deassert-gmac-ahb-reset.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/target/linux/ipq806x/patches-5.15/108-v5.14-net-stmmac-explicitly-deassert-gmac-ahb-reset.patch b/target/linux/ipq806x/patches-5.15/108-v5.14-net-stmmac-explicitly-deassert-gmac-ahb-reset.patch deleted file mode 100644 index dd1e506e5b..0000000000 --- a/target/linux/ipq806x/patches-5.15/108-v5.14-net-stmmac-explicitly-deassert-gmac-ahb-reset.patch +++ /dev/null @@ -1,75 +0,0 @@ -From e67f325e9cd67562b761e884680c0fec03a6f404 Mon Sep 17 00:00:00 2001 -From: Matthew Hagan <mnhagan88@gmail.com> -Date: Tue, 8 Jun 2021 19:59:06 +0100 -Subject: net: stmmac: explicitly deassert GMAC_AHB_RESET - -We are currently assuming that GMAC_AHB_RESET will already be deasserted -by the bootloader. However if this has not been done, probing of the GMAC -will fail. To remedy this we must ensure GMAC_AHB_RESET has been deasserted -prior to probing. - -v2 changes: - - remove NULL condition check for stmmac_ahb_rst in stmmac_main.c - - unwrap dev_err() message in stmmac_main.c - - add PTR_ERR() around plat->stmmac_ahb_rst in stmmac_platform.c - -v3 changes: - - add error pointer to dev_err() output - - add reset_control_assert(stmmac_ahb_rst) in stmmac_dvr_remove - - revert PTR_ERR() around plat->stmmac_ahb_rst since this is performed - on the returned value of ret by the calling function - -Signed-off-by: Matthew Hagan <mnhagan88@gmail.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 +++++ - drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 6 ++++++ - include/linux/stmmac.h | 1 + - 3 files changed, 12 insertions(+) - ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c -@@ -5021,6 +5021,10 @@ int stmmac_dvr_probe(struct device *devi - reset_control_reset(priv->plat->stmmac_rst); - } - -+ ret = reset_control_deassert(priv->plat->stmmac_ahb_rst); -+ if (ret == -ENOTSUPP) -+ dev_err(priv->device, "unable to bring out of ahb reset\n"); -+ - /* Init MAC and get the capabilities */ - ret = stmmac_hw_init(priv); - if (ret) -@@ -5245,6 +5249,7 @@ int stmmac_dvr_remove(struct device *dev - phylink_destroy(priv->phylink); - if (priv->plat->stmmac_rst) - reset_control_assert(priv->plat->stmmac_rst); -+ reset_control_assert(priv->plat->stmmac_ahb_rst); - pm_runtime_put(dev); - pm_runtime_disable(dev); - if (priv->hw->pcs != STMMAC_PCS_TBI && ---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c -+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c -@@ -617,6 +617,12 @@ stmmac_probe_config_dt(struct platform_d - plat->stmmac_rst = NULL; - } - -+ plat->stmmac_ahb_rst = devm_reset_control_get_optional_shared( -+ &pdev->dev, "ahb"); -+ if (IS_ERR(plat->stmmac_ahb_rst)) -+ if (PTR_ERR(plat->stmmac_ahb_rst) == -EPROBE_DEFER) -+ goto error_hw_init; -+ - return plat; - - error_hw_init: ---- a/include/linux/stmmac.h -+++ b/include/linux/stmmac.h -@@ -192,6 +192,7 @@ struct plat_stmmacenet_data { - unsigned int clk_ref_rate; - s32 ptp_max_adj; - struct reset_control *stmmac_rst; -+ struct reset_control *stmmac_ahb_rst; - struct stmmac_axi *axi; - int has_gmac4; - bool has_sun8i; |