omap: rx51: Platform support for lp5523 led chip

Platform support for lp5523 led chip

Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 5e559dda3cc3..c1938dffb946 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -39,6 +39,7 @@
 #include <sound/tpa6130a2-plat.h>
 #include <media/radio-si4713.h>
 #include <media/si4713.h>
+#include <linux/leds-lp5523.h>
 
 #include <../drivers/staging/iio/light/tsl2563.h>
 
@@ -53,6 +54,7 @@
 #define RX51_WL1251_IRQ_GPIO            42
 #define RX51_FMTX_RESET_GPIO            163
 #define RX51_FMTX_IRQ                   53
+#define RX51_LP5523_CHIP_EN_GPIO        41
 
 #define RX51_USB_TRANSCEIVER_RST_GPIO   67
 
@@ -71,6 +73,64 @@ static struct tsl2563_platform_data rx51_tsl2563_platform_data = {
 };
 #endif
 
+#if defined(CONFIG_LEDS_LP5523) || defined(CONFIG_LEDS_LP5523_MODULE)
+static struct lp5523_led_config rx51_lp5523_led_config[] = {
+        {
+                .chan_nr        = 0,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 1,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 2,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 3,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 4,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 5,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 6,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 7,
+                .led_current    = 50,
+        }, {
+                .chan_nr        = 8,
+                .led_current    = 50,
+        }
+};
+
+static int rx51_lp5523_setup(void)
+{
+        return gpio_request_one(RX51_LP5523_CHIP_EN_GPIO, GPIOF_DIR_OUT,
+                        "lp5523_enable");
+}
+
+static void rx51_lp5523_release(void)
+{
+        gpio_free(RX51_LP5523_CHIP_EN_GPIO);
+}
+
+static void rx51_lp5523_enable(bool state)
+{
+        gpio_set_value(RX51_LP5523_CHIP_EN_GPIO, !!state);
+}
+
+static struct lp5523_platform_data rx51_lp5523_platform_data = {
+        .led_config             = rx51_lp5523_led_config,
+        .num_channels           = ARRAY_SIZE(rx51_lp5523_led_config),
+        .clock_mode             = LP5523_CLOCK_AUTO,
+        .setup_resources        = rx51_lp5523_setup,
+        .release_resources      = rx51_lp5523_release,
+        .enable                 = rx51_lp5523_enable,
+};
+#endif
+
 static struct omap2_mcspi_device_config wl1251_mcspi_config = {
         .turbo_mode     = 0,
         .single_channel = 1,
@@ -833,6 +893,12 @@ static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_2[] = {
                 .platform_data = &rx51_tsl2563_platform_data,
         },
 #endif
+#if defined(CONFIG_LEDS_LP5523) || defined(CONFIG_LEDS_LP5523_MODULE)
+        {
+                I2C_BOARD_INFO("lp5523", 0x32),
+                .platform_data  = &rx51_lp5523_platform_data,
+        },
+#endif
         {
                 I2C_BOARD_INFO("tpa6130a2", 0x60),
                 .platform_data = &rx51_tpa6130a2_data,