[ARM] 5260/1: [AT91] Touchscreen on AT91SAM9RL
This patch adds initialization of the Touchscreen controller for the
AT91SAM9RL processor.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Signed-off-by: Dan Liang <dan.liang@atmel.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 3f9fed4..87deb1e 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -527,6 +527,51 @@
/* --------------------------------------------------------------------
+ * Touchscreen
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
+static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
+
+static struct resource tsadcc_resources[] = {
+ [0] = {
+ .start = AT91SAM9RL_BASE_TSC,
+ .end = AT91SAM9RL_BASE_TSC + SZ_16K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = AT91SAM9RL_ID_TSC,
+ .end = AT91SAM9RL_ID_TSC,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device at91sam9rl_tsadcc_device = {
+ .name = "atmel_tsadcc",
+ .id = -1,
+ .dev = {
+ .dma_mask = &tsadcc_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = tsadcc_resources,
+ .num_resources = ARRAY_SIZE(tsadcc_resources),
+};
+
+void __init at91_add_device_tsadcc(void)
+{
+ at91_set_A_periph(AT91_PIN_PA17, 0); /* AD0_XR */
+ at91_set_A_periph(AT91_PIN_PA18, 0); /* AD1_XL */
+ at91_set_A_periph(AT91_PIN_PA19, 0); /* AD2_YT */
+ at91_set_A_periph(AT91_PIN_PA20, 0); /* AD3_TB */
+
+ platform_device_register(&at91sam9rl_tsadcc_device);
+}
+#else
+void __init at91_add_device_tsadcc(void) {}
+#endif
+
+
+/* --------------------------------------------------------------------
* RTC
* -------------------------------------------------------------------- */