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-rw-r--r--arch/arm/mach-pxa/spitz.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 8c61ddac119e..c18e34acafcb 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -299,12 +299,22 @@ static struct pxa2xx_spi_master spitz_spi_info = {
.num_chipselect = 3,
};
+static void spitz_wait_for_hsync(void)
+{
+ while (gpio_get_value(SPITZ_GPIO_HSYNC))
+ cpu_relax();
+
+ while (!gpio_get_value(SPITZ_GPIO_HSYNC))
+ cpu_relax();
+}
+
static struct ads7846_platform_data spitz_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.gpio_pendown = SPITZ_GPIO_TP_INT,
+ .wait_for_sync = spitz_wait_for_hsync,
};
static void spitz_ads7846_cs(u32 command)