diff options
Diffstat (limited to 'target/linux/sunxi/patches-3.13/151-8-stmmac-fixup-8.patch')
| -rw-r--r-- | target/linux/sunxi/patches-3.13/151-8-stmmac-fixup-8.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/sunxi/patches-3.13/151-8-stmmac-fixup-8.patch b/target/linux/sunxi/patches-3.13/151-8-stmmac-fixup-8.patch new file mode 100644 index 0000000..b4ffecb --- /dev/null +++ b/target/linux/sunxi/patches-3.13/151-8-stmmac-fixup-8.patch @@ -0,0 +1,50 @@ +From db88f10ad6a84c5bcb71bf51f0988a4bb1733bea Mon Sep 17 00:00:00 2001 +From: Srinivas Kandagatla <srinivas.kandagatla@st.com> +Date: Thu, 16 Jan 2014 10:52:52 +0000 +Subject: [PATCH] net: stmmac: restore pinstate in pm resume. + +This patch adds code to restore default pinstate of the pins when it +comes back from low power state. Without this patch the state of the +pins would be unknown and the driver would not work. + +This patch also adds code to put the pins in to sleep state when the +driver enters low power state. + +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> +Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +index c1298a0..df7d8d6 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +@@ -43,6 +43,7 @@ + #include <linux/dma-mapping.h> + #include <linux/slab.h> + #include <linux/prefetch.h> ++#include <linux/pinctrl/consumer.h> + #ifdef CONFIG_STMMAC_DEBUG_FS + #include <linux/debugfs.h> + #include <linux/seq_file.h> +@@ -2864,6 +2865,7 @@ int stmmac_suspend(struct net_device *ndev) + priv->hw->mac->pmt(priv->ioaddr, priv->wolopts); + else { + stmmac_set_mac(priv->ioaddr, false); ++ pinctrl_pm_select_sleep_state(priv->device); + /* Disable clock in case of PWM is off */ + clk_disable_unprepare(priv->stmmac_clk); + } +@@ -2890,6 +2892,7 @@ int stmmac_resume(struct net_device *ndev) + if (device_may_wakeup(priv->device)) { + priv->hw->mac->pmt(priv->ioaddr, 0); + } else { ++ pinctrl_pm_select_default_state(priv->device); + /* enable the clk prevously disabled */ + clk_prepare_enable(priv->stmmac_clk); + /* reset the phy so that it's ready */ +-- +1.8.5.5 + |