brcm63xx: fix platform gpio lookups for gpios < 32

Overwriting static strings is never a good idea, especially expecting
identical strings to be stored in different memory locations.

This caused the lookups to always return the second chip's name. Fix
this by just initializing the lookup with the right values, so we
don't need to modify the strings at all.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48303 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 20 insertions, 38 deletions

diff --git a/target/linux/brcm63xx/patches-4.1/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch b/target/linux/brcm63xx/patches-4.1/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch
index 0cbb4f52ab..15a714bfd5 100644
--- a/target/linux/brcm63xx/patches-4.1/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch
+++ b/target/linux/brcm63xx/patches-4.1/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch
@@ -42,7 +42,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  }
 --- a/arch/mips/bcm63xx/gpio.c
 +++ b/arch/mips/bcm63xx/gpio.c
-@@ -8,15 +8,24 @@
+@@ -8,15 +8,23 @@
   * Copyright (C) Jonas Gorski <jogo@openwrt.org>
   */
  
@@ -58,24 +58,15 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  #include <bcm63xx_gpio.h>
  #include <bcm63xx_regs.h>
  
-+/* for registering lookups; make them large enough to hold OF names */
-+static char *gpio_chip_labels[] = {
-+	"xxxxxxxx.gpio-controller",
-+	"xxxxxxxx.gpio-controller",
++static const char * const gpio_chip_labels[] = {
++	"bcm63xx-gpio.0",
++	"bcm63xx-gpio.1",
 +};
 +
  static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio)
  {
  	struct resource res[2];
-@@ -40,6 +49,7 @@ static void __init bcm63xx_gpio_init_one
- 	pdata.base = id * 32;
- 	pdata.ngpio = ngpio;
- 
-+	sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
- 	platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2,
- 					  &pdata, sizeof(pdata));
- }
-@@ -64,3 +74,25 @@ int __init bcm63xx_gpio_init(void)
+@@ -64,3 +72,25 @@ int __init bcm63xx_gpio_init(void)
  	return 0;
  
  }
diff --git a/target/linux/brcm63xx/patches-4.1/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch b/target/linux/brcm63xx/patches-4.1/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch
index 2faf0dea29..af6eaff075 100644
--- a/target/linux/brcm63xx/patches-4.1/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch
+++ b/target/linux/brcm63xx/patches-4.1/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch
@@ -17,13 +17,13 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  
 +#include "boards/board_common.h"
 +
- /* for registering lookups; make them large enough to hold OF names */
- static char *gpio_chip_labels[] = {
- 	"xxxxxxxx.gpio-controller",
-@@ -50,8 +52,9 @@ static void __init bcm63xx_gpio_init_one
+ static const char * const gpio_chip_labels[] = {
+ 	"bcm63xx-gpio.0",
+ 	"bcm63xx-gpio.1",
+@@ -48,8 +50,9 @@ static void __init bcm63xx_gpio_init_one
+ 	pdata.base = id * 32;
  	pdata.ngpio = ngpio;
  
- 	sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
 -	platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2,
 -					  &pdata, sizeof(pdata));
 +	if (!board_of_device_present("gpio0"))
diff --git a/target/linux/brcm63xx/patches-4.4/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch b/target/linux/brcm63xx/patches-4.4/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch
index bd5f5e8f47..61a6056ed2 100644
--- a/target/linux/brcm63xx/patches-4.4/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch
+++ b/target/linux/brcm63xx/patches-4.4/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch
@@ -42,7 +42,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  }
 --- a/arch/mips/bcm63xx/gpio.c
 +++ b/arch/mips/bcm63xx/gpio.c
-@@ -8,15 +8,24 @@
+@@ -8,15 +8,23 @@
   * Copyright (C) Jonas Gorski <jogo@openwrt.org>
   */
  
@@ -58,24 +58,15 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  #include <bcm63xx_gpio.h>
  #include <bcm63xx_regs.h>
  
-+/* for registering lookups; make them large enough to hold OF names */
-+static char *gpio_chip_labels[] = {
-+	"xxxxxxxx.gpio-controller",
-+	"xxxxxxxx.gpio-controller",
++static const char * const gpio_chip_labels[] = {
++	"bcm63xx-gpio.0",
++	"bcm63xx-gpio.1",
 +};
 +
  static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio)
  {
  	struct resource res[2];
-@@ -40,6 +49,7 @@ static void __init bcm63xx_gpio_init_one
- 	pdata.base = id * 32;
- 	pdata.ngpio = ngpio;
- 
-+	sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
- 	platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2,
- 					  &pdata, sizeof(pdata));
- }
-@@ -64,3 +74,25 @@ int __init bcm63xx_gpio_init(void)
+@@ -64,3 +72,25 @@ int __init bcm63xx_gpio_init(void)
  	return 0;
  
  }
diff --git a/target/linux/brcm63xx/patches-4.4/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch b/target/linux/brcm63xx/patches-4.4/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch
index 2faf0dea29..af6eaff075 100644
--- a/target/linux/brcm63xx/patches-4.4/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch
+++ b/target/linux/brcm63xx/patches-4.4/378-MIPS-BCM63XX-do-not-register-gpio-controller-if-pres.patch
@@ -17,13 +17,13 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  
 +#include "boards/board_common.h"
 +
- /* for registering lookups; make them large enough to hold OF names */
- static char *gpio_chip_labels[] = {
- 	"xxxxxxxx.gpio-controller",
-@@ -50,8 +52,9 @@ static void __init bcm63xx_gpio_init_one
+ static const char * const gpio_chip_labels[] = {
+ 	"bcm63xx-gpio.0",
+ 	"bcm63xx-gpio.1",
+@@ -48,8 +50,9 @@ static void __init bcm63xx_gpio_init_one
+ 	pdata.base = id * 32;
  	pdata.ngpio = ngpio;
  
- 	sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
 -	platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2,
 -					  &pdata, sizeof(pdata));
 +	if (!board_of_device_present("gpio0"))