AT91: add touchscreen support for at91sam9g45ekes

[pandora-kernel.git] / arch / arm / mach-at91 / at91sam9g45_devices.c

diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 332b784..a5a4eb1 100644 (file)
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -809,6 +809,57 @@ static void __init at91_add_device_rtc(void) {}
 #endif
 
 
+/* --------------------------------------------------------------------
+ *  Touchscreen
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
+static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
+static struct at91_tsadcc_data tsadcc_data;
+
+static struct resource tsadcc_resources[] = {
+       [0] = {
+               .start  = AT91SAM9G45_BASE_TSC,
+               .end    = AT91SAM9G45_BASE_TSC + SZ_16K - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       [1] = {
+               .start  = AT91SAM9G45_ID_TSC,
+               .end    = AT91SAM9G45_ID_TSC,
+               .flags  = IORESOURCE_IRQ,
+       }
+};
+
+static struct platform_device at91sam9g45_tsadcc_device = {
+       .name           = "atmel_tsadcc",
+       .id             = -1,
+       .dev            = {
+                               .dma_mask               = &tsadcc_dmamask,
+                               .coherent_dma_mask      = DMA_BIT_MASK(32),
+                               .platform_data          = &tsadcc_data,
+       },
+       .resource       = tsadcc_resources,
+       .num_resources  = ARRAY_SIZE(tsadcc_resources),
+};
+
+void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
+{
+       if (!data)
+               return;
+
+       at91_set_gpio_input(AT91_PIN_PD20, 0);  /* AD0_XR */
+       at91_set_gpio_input(AT91_PIN_PD21, 0);  /* AD1_XL */
+       at91_set_gpio_input(AT91_PIN_PD22, 0);  /* AD2_YT */
+       at91_set_gpio_input(AT91_PIN_PD23, 0);  /* AD3_TB */
+
+       tsadcc_data = *data;
+       platform_device_register(&at91sam9g45_tsadcc_device);
+}
+#else
+void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  RTT
  * -------------------------------------------------------------------- */