Blackfin arch: add note about newer ezkits using PB4 for AD7877 instead of PJ11

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index d22515d080a0c3601c0c12383d5ae348a6797af1..628f21889e22cc87b84da41e355a4ac28451ed89 100644 (file)
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -559,7 +559,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 {
        .modalias               = "ad7877",
        .platform_data          = &bfin_ad7877_ts_info,
-       .irq                    = IRQ_PJ11,
+       .irq                    = IRQ_PJ11,     /* newer boards (Rev 1.4+) use IRQ_PB4 */
        .max_speed_hz           = 12500000,     /* max spi clock (SCK) speed in HZ */
        .bus_num                = 0,
        .chip_select            = 2,