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authorEric Miao <eric.miao@marvell.com>2009-02-06 16:49:23 +0800
committerEric Miao <eric.miao@marvell.com>2009-04-27 11:45:53 +0800
commit3e36c0deea118e277f4ff9fa947bcde5f88426ca (patch)
treeda650c6368cf1bbce39666466998a39b53880368 /arch
parent36b5437f33fb95196bef2345dede39fdcab3e431 (diff)
[ARM] pxa: make ads7846 on corgi and spitz to sync on HSYNC
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-pxa/corgi.c10
-rw-r--r--arch/arm/mach-pxa/spitz.c10
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index cdf21dd135b..930e364ccde 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -427,12 +427,22 @@ static struct pxa2xx_spi_master corgi_spi_info = {
.num_chipselect = 3,
};
+static void corgi_wait_for_hsync(void)
+{
+ while (gpio_get_value(CORGI_GPIO_HSYNC))
+ cpu_relax();
+
+ while (!gpio_get_value(CORGI_GPIO_HSYNC))
+ cpu_relax();
+}
+
static struct ads7846_platform_data corgi_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.gpio_pendown = CORGI_GPIO_TP_INT,
+ .wait_for_sync = corgi_wait_for_hsync,
};
static void corgi_ads7846_cs(u32 command)
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 8c61ddac119..c18e34acafc 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)