[ARM] pxa/vpac270: Add touchscreen support

This adds support for the UCB1400 touchscreen found in the VPAC270 device.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index 56cc24575999..fa428ca54902 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -22,11 +22,13 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/dm9000.h>
+#include <linux/ucb1400.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
 #include <mach/pxa27x.h>
+#include <mach/audio.h>
 #include <mach/vpac270.h>
 #include <mach/mmc.h>
 #include <mach/pxafb.h>
@@ -121,6 +123,15 @@ static unsigned long vpac270_pin_config[] __initdata = {
 
         /* Ethernet */
         GPIO114_GPIO,   /* IRQ */
+
+        /* AC97 */
+        GPIO28_AC97_BITCLK,
+        GPIO29_AC97_SDATA_IN_0,
+        GPIO30_AC97_SDATA_OUT,
+        GPIO31_AC97_SYNC,
+        GPIO95_AC97_nRESET,
+        GPIO98_AC97_SYSCLK,
+        GPIO113_GPIO,   /* TS IRQ */
 };
 
 /******************************************************************************
@@ -357,6 +368,36 @@ static inline void vpac270_eth_init(void) {}
 #endif
 
 /******************************************************************************
+ * Audio and Touchscreen
+ ******************************************************************************/
+#if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
+        defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
+static pxa2xx_audio_ops_t vpac270_ac97_pdata = {
+        .reset_gpio     = 95,
+};
+
+static struct ucb1400_pdata vpac270_ucb1400_pdata = {
+        .irq            = IRQ_GPIO(113),
+};
+
+static struct platform_device vpac270_ucb1400_device = {
+        .name           = "ucb1400_core",
+        .id             = -1,
+        .dev            = {
+                .platform_data = &vpac270_ucb1400_pdata,
+        },
+};
+
+static void __init vpac270_ts_init(void)
+{
+        pxa_set_ac97_info(&vpac270_ac97_pdata);
+        platform_device_register(&vpac270_ucb1400_device);
+}
+#else
+static inline void vpac270_ts_init(void) {}
+#endif
+
+/******************************************************************************
  * Framebuffer
  ******************************************************************************/
 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
@@ -439,6 +480,7 @@ static void __init vpac270_init(void)
         vpac270_uhc_init();
         vpac270_udc_init();
         vpac270_eth_init();
+        vpac270_ts_init();
 }
 
 MACHINE_START(VPAC270, "Voipac PXA270")