ARM: mach-shmobile: ap4evb: Add SW43, SW3 tiny document

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 10 insertions, 6 deletions

diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index b10431451f39..0a7eb29cd7ca 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -82,12 +82,16 @@
  */
 
 /*
- * KEYSC
+ * LCD / IRQ / KEYSC / IrDA
  *
- * SW43         KEYSC
- * -------------------------
- * ON           enable
- * OFF          disable
+ * IRQ = IRQ26 (TS), IRQ27 (VIO), IRQ28 (TouchScreen)
+ * LCD = 2nd LCDC
+ *
+ *              |               SW43                    |
+ * SW3          |       ON              |       OFF     |
+ * -------------+-----------------------+---------------+
+ * ON           | KEY / IrDA            | LCD           |
+ * OFF          | KEY / IrDA / IRQ      | IRQ           |
  */
 
 /* MTD */
@@ -236,7 +240,7 @@ static struct platform_device *ap4evb_devices[] __initdata = {
         &sdhi0_device,
 };
 
-/* TouchScreen */
+/* TouchScreen (Needs SW3 set to OFF) */
 #define IRQ28   396
 struct tsc2007_platform_data tsc2007_info = {
         .model                  = 2007,