omap3: rx51: Use wl1251 in SPI mode 3
[linux-2.6.git] / arch / arm / mach-omap2 / board-rx51-peripherals.c
index c1af532..bf26ad3 100644 (file)
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/input.h>
+#include <linux/input/matrix_keypad.h>
 #include <linux/spi/spi.h>
+#include <linux/spi/wl12xx.h>
 #include <linux/i2c.h>
 #include <linux/i2c/twl4030.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/regulator/machine.h>
 #include <linux/gpio.h>
+#include <linux/gpio_keys.h>
 #include <linux/mmc/host.h>
 
-#include <mach/mcspi.h>
-#include <mach/mux.h>
-#include <mach/board.h>
-#include <mach/common.h>
-#include <mach/dma.h>
-#include <mach/gpmc.h>
-#include <mach/keypad.h>
-#include <mach/onenand.h>
-#include <mach/gpmc-smc91x.h>
+#include <plat/mcspi.h>
+#include <plat/mux.h>
+#include <plat/board.h>
+#include <plat/common.h>
+#include <plat/dma.h>
+#include <plat/gpmc.h>
+#include <plat/onenand.h>
+#include <plat/gpmc-smc91x.h>
 
+#include "mux.h"
 #include "mmc-twl4030.h"
 
 #define SYSTEM_REV_B_USES_VAUX3        0x1699
 #define SYSTEM_REV_S_USES_VAUX3 0x8
 
+#define RX51_WL1251_POWER_GPIO         87
+#define RX51_WL1251_IRQ_GPIO           42
+
+/* list all spi devices here */
+enum {
+       RX51_SPI_WL1251,
+};
+
+static struct wl12xx_platform_data wl1251_pdata;
+
+static struct omap2_mcspi_device_config wl1251_mcspi_config = {
+       .turbo_mode     = 0,
+       .single_channel = 1,
+};
+
+static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
+       [RX51_SPI_WL1251] = {
+               .modalias               = "wl1251",
+               .bus_num                = 4,
+               .chip_select            = 0,
+               .max_speed_hz           = 48000000,
+               .mode                   = SPI_MODE_3,
+               .controller_data        = &wl1251_mcspi_config,
+               .platform_data          = &wl1251_pdata,
+       },
+};
+
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+
+#define RX51_GPIO_CAMERA_LENS_COVER    110
+#define RX51_GPIO_CAMERA_FOCUS         68
+#define RX51_GPIO_CAMERA_CAPTURE       69
+#define RX51_GPIO_KEYPAD_SLIDE         71
+#define RX51_GPIO_LOCK_BUTTON          113
+#define RX51_GPIO_PROXIMITY            89
+
+#define RX51_GPIO_DEBOUNCE_TIMEOUT     10
+
+static struct gpio_keys_button rx51_gpio_keys[] = {
+       {
+               .desc                   = "Camera Lens Cover",
+               .type                   = EV_SW,
+               .code                   = SW_CAMERA_LENS_COVER,
+               .gpio                   = RX51_GPIO_CAMERA_LENS_COVER,
+               .active_low             = 1,
+               .debounce_interval      = RX51_GPIO_DEBOUNCE_TIMEOUT,
+       }, {
+               .desc                   = "Camera Focus",
+               .type                   = EV_KEY,
+               .code                   = KEY_CAMERA_FOCUS,
+               .gpio                   = RX51_GPIO_CAMERA_FOCUS,
+               .active_low             = 1,
+               .debounce_interval      = RX51_GPIO_DEBOUNCE_TIMEOUT,
+       }, {
+               .desc                   = "Camera Capture",
+               .type                   = EV_KEY,
+               .code                   = KEY_CAMERA,
+               .gpio                   = RX51_GPIO_CAMERA_CAPTURE,
+               .active_low             = 1,
+               .debounce_interval      = RX51_GPIO_DEBOUNCE_TIMEOUT,
+       }, {
+               .desc                   = "Lock Button",
+               .type                   = EV_KEY,
+               .code                   = KEY_SCREENLOCK,
+               .gpio                   = RX51_GPIO_LOCK_BUTTON,
+               .active_low             = 1,
+               .debounce_interval      = RX51_GPIO_DEBOUNCE_TIMEOUT,
+       }, {
+               .desc                   = "Keypad Slide",
+               .type                   = EV_SW,
+               .code                   = SW_KEYPAD_SLIDE,
+               .gpio                   = RX51_GPIO_KEYPAD_SLIDE,
+               .active_low             = 1,
+               .debounce_interval      = RX51_GPIO_DEBOUNCE_TIMEOUT,
+       }, {
+               .desc                   = "Proximity Sensor",
+               .type                   = EV_SW,
+               .code                   = SW_FRONT_PROXIMITY,
+               .gpio                   = RX51_GPIO_PROXIMITY,
+               .active_low             = 0,
+               .debounce_interval      = RX51_GPIO_DEBOUNCE_TIMEOUT,
+       }
+};
+
+static struct gpio_keys_platform_data rx51_gpio_keys_data = {
+       .buttons        = rx51_gpio_keys,
+       .nbuttons       = ARRAY_SIZE(rx51_gpio_keys),
+};
+
+static struct platform_device rx51_gpio_keys_device = {
+       .name   = "gpio-keys",
+       .id     = -1,
+       .dev    = {
+               .platform_data  = &rx51_gpio_keys_data,
+       },
+};
+
+static void __init rx51_add_gpio_keys(void)
+{
+       platform_device_register(&rx51_gpio_keys_device);
+}
+#else
+static void __init rx51_add_gpio_keys(void)
+{
+}
+#endif /* CONFIG_KEYBOARD_GPIO || CONFIG_KEYBOARD_GPIO_MODULE */
+
 static int board_keymap[] = {
        KEY(0, 0, KEY_Q),
        KEY(0, 1, KEY_O),
@@ -444,7 +554,7 @@ static int __init rx51_i2c_init(void)
                rx51_twldata.vaux3 = &rx51_vaux3_cam;
                rx51_twldata.vmmc2 = &rx51_vmmc2;
        }
-       omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
+       omap_register_i2c_bus(1, 2200, rx51_peripherals_i2c_board_info_1,
                        ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
        omap_register_i2c_bus(2, 100, NULL, 0);
        omap_register_i2c_bus(3, 400, NULL, 0);
@@ -521,9 +631,9 @@ static struct omap_smc91x_platform_data board_smc91x_data = {
 
 static void __init board_smc91x_init(void)
 {
-       omap_cfg_reg(U8_34XX_GPIO54_DOWN);
-       omap_cfg_reg(G25_34XX_GPIO86_OUT);
-       omap_cfg_reg(H19_34XX_GPIO164_OUT);
+       omap_mux_init_gpio(54, OMAP_PIN_INPUT_PULLDOWN);
+       omap_mux_init_gpio(86, OMAP_PIN_OUTPUT);
+       omap_mux_init_gpio(164, OMAP_PIN_OUTPUT);
 
        gpmc_smc91x_init(&board_smc91x_data);
 }
@@ -536,10 +646,64 @@ static inline void board_smc91x_init(void)
 
 #endif
 
+static void rx51_wl1251_set_power(bool enable)
+{
+       gpio_set_value(RX51_WL1251_POWER_GPIO, enable);
+}
+
+static void __init rx51_init_wl1251(void)
+{
+       int irq, ret;
+
+       ret = gpio_request(RX51_WL1251_POWER_GPIO, "wl1251 power");
+       if (ret < 0)
+               goto error;
+
+       ret = gpio_direction_output(RX51_WL1251_POWER_GPIO, 0);
+       if (ret < 0)
+               goto err_power;
+
+       ret = gpio_request(RX51_WL1251_IRQ_GPIO, "wl1251 irq");
+       if (ret < 0)
+               goto err_power;
+
+       ret = gpio_direction_input(RX51_WL1251_IRQ_GPIO);
+       if (ret < 0)
+               goto err_irq;
+
+       irq = gpio_to_irq(RX51_WL1251_IRQ_GPIO);
+       if (irq < 0)
+               goto err_irq;
+
+       wl1251_pdata.set_power = rx51_wl1251_set_power;
+       rx51_peripherals_spi_board_info[RX51_SPI_WL1251].irq = irq;
+
+       return;
+
+err_irq:
+       gpio_free(RX51_WL1251_IRQ_GPIO);
+
+err_power:
+       gpio_free(RX51_WL1251_POWER_GPIO);
+
+error:
+       printk(KERN_ERR "wl1251 board initialisation failed\n");
+       wl1251_pdata.set_power = NULL;
+
+       /*
+        * Now rx51_peripherals_spi_board_info[1].irq is zero and
+        * set_power is null, and wl1251_probe() will fail.
+        */
+}
+
 void __init rx51_peripherals_init(void)
 {
        rx51_i2c_init();
        board_onenand_init();
        board_smc91x_init();
+       rx51_add_gpio_keys();
+       rx51_init_wl1251();
+       spi_register_board_info(rx51_peripherals_spi_board_info,
+                               ARRAY_SIZE(rx51_peripherals_spi_board_info));
 }