brcm63xx: add linux 4.4 support

[openwrt.git] / target / linux / brcm63xx / patches-4.4 / 376-net-bcm63xx_enet-use-named-gpio-for-ephy-reset-gpio.patch

diff --git a/target/linux/brcm63xx/patches-4.4/376-net-bcm63xx_enet-use-named-gpio-for-ephy-reset-gpio.patch b/target/linux/brcm63xx/patches-4.4/376-net-bcm63xx_enet-use-named-gpio-for-ephy-reset-gpio.patch
new file mode 100644 (file)
index 0000000..db3fc5b
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.4/376-net-bcm63xx_enet-use-named-gpio-for-ephy-reset-gpio.patch
@@ -0,0 +1,46 @@
+From ec905f2ea78ec40602a685ede31c5e4f9893d196 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sat, 21 Feb 2015 16:35:07 +0100
+Subject: [PATCH 3/6] net: bcm63xx_enet: use named gpio for ephy reset gpio
+
+Allow using a named optional gpio for ephy reset gpio registration.
+---
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c |    9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -30,6 +30,7 @@
+ #include <linux/dma-mapping.h>
+ #include <linux/platform_device.h>
+ #include <linux/if_vlan.h>
++#include <linux/gpio/consumer.h>
+ 
+ #include <bcm63xx_dev_enet.h>
+ #include "bcm63xx_enet.h"
+@@ -2851,10 +2852,15 @@ static int bcm_enet_shared_probe(struct
+ {
+       struct resource *res;
+       void __iomem *p[3];
++      struct gpio_desc *ephy_reset;
+       unsigned int i;
+ 
+       memset(bcm_enet_shared_base, 0, sizeof(bcm_enet_shared_base));
+ 
++      ephy_reset = devm_gpiod_get_optional(&pdev->dev, "ephy-reset", GPIOD_ASIS);
++      if (IS_ERR(ephy_reset))
++              return PTR_ERR(ephy_reset);
++
+       for (i = 0; i < 3; i++) {
+               res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+               p[i] = devm_ioremap_resource(&pdev->dev, res);
+@@ -2864,6 +2870,9 @@ static int bcm_enet_shared_probe(struct
+ 
+       memcpy(bcm_enet_shared_base, p, sizeof(bcm_enet_shared_base));
+ 
++      if (ephy_reset)
++              gpiod_direction_output(ephy_reset, 0);
++
+       return 0;
+ }
+