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From 1f3e1c682a0b5273e3ee8799b54319971f426e6a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Wed, 29 Jan 2014 18:06:52 +0100
Subject: [RFC V2][PATCH] MIPS: BCM47XX: Add new file for device specific workarounds
---
V2: Drop pr_debug for devices we don't need workarounds for. It was too
load and not useful at all.
---
arch/mips/bcm47xx/Makefile | 2 +-
arch/mips/bcm47xx/bcm47xx_private.h | 3 +++
arch/mips/bcm47xx/setup.c | 1 +
arch/mips/bcm47xx/workarounds.c | 25 +++++++++++++++++++++++++
4 files changed, 30 insertions(+), 1 deletion(-)
create mode 100644 arch/mips/bcm47xx/workarounds.c
--- a/arch/mips/bcm47xx/Makefile
+++ b/arch/mips/bcm47xx/Makefile
@@ -4,4 +4,4 @@
#
obj-y += irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
-obj-y += board.o buttons.o leds.o
+obj-y += board.o buttons.o leds.o workarounds.o
--- a/arch/mips/bcm47xx/bcm47xx_private.h
+++ b/arch/mips/bcm47xx/bcm47xx_private.h
@@ -9,4 +9,7 @@ int __init bcm47xx_buttons_register(void
/* leds.c */
void __init bcm47xx_leds_register(void);
+/* workarounds.c */
+void __init bcm47xx_workarounds(void);
+
#endif
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -286,6 +286,7 @@ static int __init bcm47xx_register_bus_c
}
bcm47xx_buttons_register();
bcm47xx_leds_register();
+ bcm47xx_workarounds();
fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
return 0;
--- /dev/null
+++ b/arch/mips/bcm47xx/workarounds.c
@@ -0,0 +1,31 @@
+#include "bcm47xx_private.h"
+
+#include <linux/gpio.h>
+#include <bcm47xx_board.h>
+#include <bcm47xx.h>
+
+static void __init bcm47xx_workarounds_netgear_wnr3500l(void)
+{
+ const int usb_power = 12;
+ int err;
+
+ err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
+ if (err)
+ pr_err("Failed to request USB power gpio: %d\n", err);
+ else
+ gpio_free(usb_power);
+}
+
+void __init bcm47xx_workarounds(void)
+{
+ enum bcm47xx_board board = bcm47xx_board_get();
+
+ switch (board) {
+ case BCM47XX_BOARD_NETGEAR_WNR3500L:
+ bcm47xx_workarounds_netgear_wnr3500l();
+ break;
+ default:
+ /* No workaround(s) needed */
+ break;
+ }
+}
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