[AVR32] leds-gpio for stk1000

Add GPIO led support: J2 to either block of LEDs on the STK1000.

This uses the new LEDS_GPIO driver, and sets up a heartbeat trigger by
default ... either bright (!!) amber, or a more interesting purple.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
index 71bc7d364fb7c17ee8f1884f6f58d64732aedfa2..718578f640691c2e9b692c1b98acf53e6d7b5ca1 100644 (file)
--- a/arch/avr32/boards/atstk1000/Kconfig
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -50,4 +50,30 @@ config BOARD_ATSTK1002_SPI1
          GPIO lines and accessed through the J1 jumper block.  Say "y"
          here to configure that SPI controller.
 
          GPIO lines and accessed through the J1 jumper block.  Say "y"
          here to configure that SPI controller.
 

+config BOARD_ATSTK1002_J2_LED
+       bool
+       default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB
+
+choice
+       prompt "LEDs connected to J2:"
+       depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM
+       optional
+       help
+         Select this if you have jumpered the J2 jumper block to the
+         LED0..LED7 amber leds, or to the RGB leds, using a ten-pin
+         IDC cable.  A default "heartbeat" trigger is provided, but
+         you can of course override this.
+
+config BOARD_ATSTK1002_J2_LED8
+       bool "LED0..LED7"
+       help
+         Select this if J2 is jumpered to LED0..LED7 amber leds.
+
+config BOARD_ATSTK1002_J2_RGB
+       bool "RGB leds"
+       help
+         Select this if J2 is jumpered to the RGB leds.
+
+endchoice
+

 endif  # stk 1002
 endif  # stk 1002

diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index cb93eabb9c6c4145947df0bda8afaefd0d734340..c9981b731efa58e1d20aecee60222081ed813b06 100644 (file)
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -11,6 +11,7 @@
 #include <linux/etherdevice.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/etherdevice.h>
 #include <linux/init.h>
 #include <linux/kernel.h>

+#include <linux/leds.h>

 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/types.h>


@@ -120,6 +121,65 @@ static void __init set_hw_addr(struct platform_device *pdev)
        clk_put(pclk);
 }
 
        clk_put(pclk);
 }
 

+#ifdef CONFIG_BOARD_ATSTK1002_J2_LED
+
+static struct gpio_led stk_j2_led[] = {
+#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8
+#define LEDSTRING "J2 jumpered to LED8"
+       { .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
+       { .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
+       { .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
+       { .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
+       { .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
+       { .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
+       { .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
+       { .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
+                       .default_trigger = "heartbeat", },
+#else  /* RGB */
+#define LEDSTRING "J2 jumpered to RGB LEDs"
+       { .name = "r1:red",     .gpio = GPIO_PIN_PB( 8), },
+       { .name = "g1:green",   .gpio = GPIO_PIN_PB(10), },
+       { .name = "b1:blue",    .gpio = GPIO_PIN_PB(14), },
+
+       { .name = "r2:red",     .gpio = GPIO_PIN_PB( 9),
+                       .default_trigger = "heartbeat", },
+       { .name = "g2:green",   .gpio = GPIO_PIN_PB(13), },
+       { .name = "b2:blue",    .gpio = GPIO_PIN_PB(15),
+                       .default_trigger = "heartbeat", },
+       /* PB16, PB30 unused */
+#endif
+};
+
+static struct gpio_led_platform_data stk_j2_led_data = {
+       .num_leds       = ARRAY_SIZE(stk_j2_led),
+       .leds           = stk_j2_led,
+};
+
+static struct platform_device stk_j2_led_dev = {
+       .name           = "leds-gpio",
+       .id             = 2,    /* gpio block J2 */
+       .dev            = {
+               .platform_data  = &stk_j2_led_data,
+       },
+};
+
+static void setup_j2_leds(void)
+{
+       unsigned        i;
+
+       for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++)
+               at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
+
+       printk("STK1002: " LEDSTRING "\n");
+       platform_device_register(&stk_j2_led_dev);
+}
+
+#else
+static void setup_j2_leds(void)
+{
+}
+#endif
+

 void __init setup_board(void)
 {
 #ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
 void __init setup_board(void)
 {
 #ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM


@@ -185,6 +245,8 @@ static int __init atstk1002_init(void)
        at32_add_device_ssc(0, ATMEL_SSC_TX);
 #endif
 
        at32_add_device_ssc(0, ATMEL_SSC_TX);
 #endif
 

+       setup_j2_leds();
+

        return 0;
 }
 postcore_initcall(atstk1002_init);
        return 0;
 }
 postcore_initcall(atstk1002_init);