target/linux/ixp4xx/patches-2.6.23/020-ixp4xx_i2c_gpio.patch

   1 Migrate all ixp4xx devices to the bitbanging I2C bus driver utilizing
   2 the arch-neutral GPIO API (linux/i2c-gpio.h).
   3
   4 Tested by the nslu2-linux and openwrt projects in public firmware releases.
   5
   6 Acked-by: Rod Whitby <rod@whitby.id.au>
   7 Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk>
   8
   9 Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/nslu2-setup.c
  10 ===================================================================
  11 --- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/nslu2-setup.c
  12 +++ linux-2.6.23.17/arch/arm/mach-ixp4xx/nslu2-setup.c
  13 @@ -18,6 +18,7 @@
  14  #include <linux/serial.h>
  15  #include <linux/serial_8250.h>
  16  #include <linux/leds.h>
  17 +#include <linux/i2c-gpio.h>
  18
  19  #include <asm/mach-types.h>
  20  #include <asm/mach/arch.h>
  21 @@ -41,7 +42,7 @@ static struct platform_device nslu2_flas
  22         .resource               = &nslu2_flash_resource,
  23  };
  24
  25 -static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
  26 +static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
  27         .sda_pin                = NSLU2_SDA_PIN,
  28         .scl_pin                = NSLU2_SCL_PIN,
  29  };
  30 @@ -82,11 +83,12 @@ static struct platform_device nslu2_leds
  31  };
  32  #endif
  33
  34 -static struct platform_device nslu2_i2c_controller = {
  35 -       .name                   = "IXP4XX-I2C",
  36 +static struct platform_device nslu2_i2c_gpio = {
  37 +       .name                   = "i2c-gpio",
  38         .id                     = 0,
  39 -       .dev.platform_data      = &nslu2_i2c_gpio_pins,
  40 -       .num_resources          = 0,
  41 +       .dev     = {
  42 +               .platform_data  = &nslu2_i2c_gpio_data,
  43 +       },
  44  };
  45
  46  static struct platform_device nslu2_beeper = {
  47 @@ -139,7 +141,7 @@ static struct platform_device nslu2_uart
  48  };
  49
  50  static struct platform_device *nslu2_devices[] __initdata = {
  51 -       &nslu2_i2c_controller,
  52 +       &nslu2_i2c_gpio,
  53         &nslu2_flash,
  54         &nslu2_beeper,
  55  #ifdef CONFIG_LEDS_IXP4XX
  56 Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-setup.c
  57 ===================================================================
  58 --- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/nas100d-setup.c
  59 +++ linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-setup.c
  60 @@ -16,6 +16,7 @@
  61  #include <linux/serial.h>
  62  #include <linux/serial_8250.h>
  63  #include <linux/leds.h>
  64 +#include <linux/i2c-gpio.h>
  65
  66  #include <asm/mach-types.h>
  67  #include <asm/mach/arch.h>
  68 @@ -68,16 +69,17 @@ static struct platform_device nas100d_le
  69  };
  70  #endif
  71
  72 -static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
  73 +static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
  74         .sda_pin                = NAS100D_SDA_PIN,
  75         .scl_pin                = NAS100D_SCL_PIN,
  76  };
  77
  78 -static struct platform_device nas100d_i2c_controller = {
  79 -       .name                   = "IXP4XX-I2C",
  80 +static struct platform_device nas100d_i2c_gpio = {
  81 +       .name                   = "i2c-gpio",
  82         .id                     = 0,
  83 -       .dev.platform_data      = &nas100d_i2c_gpio_pins,
  84 -       .num_resources          = 0,
  85 +       .dev     = {
  86 +               .platform_data  = &nas100d_i2c_gpio_data,
  87 +       },
  88  };
  89
  90  static struct resource nas100d_uart_resources[] = {
  91 @@ -124,7 +126,7 @@ static struct platform_device nas100d_ua
  92  };
  93
  94  static struct platform_device *nas100d_devices[] __initdata = {
  95 -       &nas100d_i2c_controller,
  96 +       &nas100d_i2c_gpio,
  97         &nas100d_flash,
  98  #ifdef CONFIG_LEDS_IXP4XX
  99         &nas100d_leds,
 100 Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/avila-setup.c
 101 ===================================================================
 102 --- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/avila-setup.c
 103 +++ linux-2.6.23.17/arch/arm/mach-ixp4xx/avila-setup.c
 104 @@ -18,6 +18,7 @@
 105  #include <linux/tty.h>
 106  #include <linux/serial_8250.h>
 107  #include <linux/slab.h>
 108 +#include <linux/i2c-gpio.h>
 109
 110  #include <asm/types.h>
 111  #include <asm/setup.h>
 112 @@ -47,18 +48,17 @@ static struct platform_device avila_flas
 113         .resource       = &avila_flash_resource,
 114  };
 115
 116 -static struct ixp4xx_i2c_pins avila_i2c_gpio_pins = {
 117 +static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
 118         .sda_pin        = AVILA_SDA_PIN,
 119         .scl_pin        = AVILA_SCL_PIN,
 120  };
 121
 122 -static struct platform_device avila_i2c_controller = {
 123 -       .name           = "IXP4XX-I2C",
 124 +static struct platform_device avila_i2c_gpio = {
 125 +       .name           = "i2c-gpio",
 126         .id             = 0,
 127 -       .dev            = {
 128 -               .platform_data = &avila_i2c_gpio_pins,
 129 +       .dev     = {
 130 +               .platform_data  = &avila_i2c_gpio_data,
 131         },
 132 -       .num_resources  = 0
 133  };
 134
 135  static struct resource avila_uart_resources[] = {
 136 @@ -133,7 +133,7 @@ static struct platform_device avila_pata
 137  };
 138
 139  static struct platform_device *avila_devices[] __initdata = {
 140 -       &avila_i2c_controller,
 141 +       &avila_i2c_gpio,
 142         &avila_flash,
 143         &avila_uart
 144  };
 145 Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/dsmg600-setup.c
 146 ===================================================================
 147 --- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/dsmg600-setup.c
 148 +++ linux-2.6.23.17/arch/arm/mach-ixp4xx/dsmg600-setup.c
 149 @@ -14,6 +14,7 @@
 150  #include <linux/kernel.h>
 151  #include <linux/serial.h>
 152  #include <linux/serial_8250.h>
 153 +#include <linux/i2c-gpio.h>
 154
 155  #include <asm/mach-types.h>
 156  #include <asm/mach/arch.h>
 157 @@ -37,15 +38,17 @@ static struct platform_device dsmg600_fl
 158         .resource               = &dsmg600_flash_resource,
 159  };
 160
 161 -static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = {
 162 +static struct i2c_gpio_platform_data dsmg600_i2c_gpio_data = {
 163         .sda_pin                = DSMG600_SDA_PIN,
 164         .scl_pin                = DSMG600_SCL_PIN,
 165  };
 166
 167 -static struct platform_device dsmg600_i2c_controller = {
 168 -       .name                   = "IXP4XX-I2C",
 169 +static struct platform_device dsmg600_i2c_gpio = {
 170 +       .name                   = "i2c-gpio",
 171         .id                     = 0,
 172 -       .dev.platform_data      = &dsmg600_i2c_gpio_pins,
 173 +       .dev     = {
 174 +               .platform_data  = &dsmg600_i2c_gpio_data,
 175 +       },
 176  };
 177
 178  #ifdef CONFIG_LEDS_CLASS
 179 @@ -116,7 +119,7 @@ static struct platform_device dsmg600_ua
 180  };
 181
 182  static struct platform_device *dsmg600_devices[] __initdata = {
 183 -       &dsmg600_i2c_controller,
 184 +       &dsmg600_i2c_gpio,
 185         &dsmg600_flash,
 186  };
 187
 188 Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/ixdp425-setup.c
 189 ===================================================================
 190 --- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/ixdp425-setup.c
 191 +++ linux-2.6.23.17/arch/arm/mach-ixp4xx/ixdp425-setup.c
 192 @@ -15,6 +15,7 @@
 193  #include <linux/tty.h>
 194  #include <linux/serial_8250.h>
 195  #include <linux/slab.h>
 196 +#include <linux/i2c-gpio.h>
 197  #include <linux/io.h>
 198  #include <linux/mtd/mtd.h>
 199  #include <linux/mtd/nand.h>
 200 @@ -120,18 +121,17 @@ static struct platform_device ixdp425_fl
 201  };
 202  #endif /* CONFIG_MTD_NAND_PLATFORM */
 203
 204 -static struct ixp4xx_i2c_pins ixdp425_i2c_gpio_pins = {
 205 +static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
 206         .sda_pin        = IXDP425_SDA_PIN,
 207         .scl_pin        = IXDP425_SCL_PIN,
 208  };
 209
 210 -static struct platform_device ixdp425_i2c_controller = {
 211 -       .name           = "IXP4XX-I2C",
 212 +static struct platform_device ixdp425_i2c_gpio = {
 213 +       .name           = "i2c-gpio",
 214         .id             = 0,
 215 -       .dev            = {
 216 -               .platform_data = &ixdp425_i2c_gpio_pins,
 217 +       .dev     = {
 218 +               .platform_data  = &ixdp425_i2c_gpio_data,
 219         },
 220 -       .num_resources  = 0
 221  };
 222
 223  static struct resource ixdp425_uart_resources[] = {
 224 @@ -178,7 +178,7 @@ static struct platform_device ixdp425_ua
 225  };
 226
 227  static struct platform_device *ixdp425_devices[] __initdata = {
 228 -       &ixdp425_i2c_controller,
 229 +       &ixdp425_i2c_gpio,
 230         &ixdp425_flash,
 231  #if defined(CONFIG_MTD_NAND_PLATFORM) || \
 232      defined(CONFIG_MTD_NAND_PLATFORM_MODULE)