ENGR00139383-3 MX53 SMD:Support ISL29023 light sensor

This patch adds ISL29023 light sensor support.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>

diff --git a/arch/arm/mach-mx5/board-mx53_smd.c b/arch/arm/mach-mx5/board-mx53_smd.c
index d1b597cf81cf7d59476a6a7bc82938f051f918ef..9ca2023ccdff26ddc8607cf0cd8e43785023244e 100755 (executable)
--- a/arch/arm/mach-mx5/board-mx53_smd.c
+++ b/arch/arm/mach-mx5/board-mx53_smd.c
@@ -60,6 +60,7 @@
 #define MX53_SMD_OSC_CKIH1_EN  IMX_GPIO_NR(6, 11)
 #define MX53_SMD_DCDC1V8_EN    IMX_GPIO_NR(3, 1)
 #define MX53_SMD_DCDC5V_BB_EN  IMX_GPIO_NR(4, 14)
+#define MX53_SMD_ALS_INT       IMX_GPIO_NR(3, 22)
 
 extern int mx53_smd_init_da9052(void);
 
@@ -250,6 +251,10 @@ static struct fsl_mxc_camera_platform_data camera_data = {
        .csi = 0,
 };
 
+static struct fsl_mxc_lightsensor_platform_data ls_data = {
+       .rext = 700,    /* calibration: 499K->700K */
+};
+
 static struct i2c_board_info mxc_i2c0_board_info[] __initdata = {
        {
        .type = "mma8451",
@@ -260,6 +265,7 @@ static struct i2c_board_info mxc_i2c0_board_info[] __initdata = {
        .addr = 0x3C,
        .platform_data = (void *)&camera_data,
        },
+
 };
 
 static u16 smd_touchkey_martix[4] = {
@@ -339,6 +345,13 @@ static struct i2c_board_info mxc_i2c2_board_info[] __initdata = {
                I2C_BOARD_INFO("p1003_ts", 0x41),
                .irq = gpio_to_irq(MX53_SMD_CAP_TCH_INT1),
        },
+       {
+       .type = "isl29023",
+       .addr = 0x44,
+       .irq  = gpio_to_irq(MX53_SMD_ALS_INT),
+       .platform_data = &ls_data,
+       },
+
 };
 
 /* HW Initialization, if return 0, initialization is successful. */
@@ -563,6 +576,10 @@ static void __init mx53_smd_board_init(void)
        gpio_request(MX53_SMD_DCDC1V8_EN, "dcdc1v8-en");
        gpio_direction_output(MX53_SMD_DCDC1V8_EN, 1);
 
+       /* ambient light sensor */
+       gpio_request(MX53_SMD_ALS_INT, "als int");
+       gpio_direction_input(MX53_SMD_ALS_INT);
+
        mxc_register_device(&smd_audio_device, &smd_audio_data);
        imx53_add_imx_ssi(1, &smd_ssi_pdata);
 }