From: Charulatha V <charu@xxxxxx>
Reset GPIO (OMAP_GPIO_152) for QUART in zoom2/zoom3 debug-board is
not requested at all. This would lead to problems if this GPIO is
wrongly requested. Hence request OMAP GPIO 152 for QUART RESET but
do not apply a reset pulse as it would reset QUART and
disturb the QUART settings.
Signed-off-by: Charulatha V <charu@xxxxxx>
Acked-by: Kevin Hilman <khilman@xxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Cc: Kevin Hilman <khilman@xxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
---
arch/arm/mach-omap2/board-zoom-debugboard.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c
index 007ebdc..a5f62f8 100644
--- a/arch/arm/mach-omap2/board-zoom-debugboard.c
+++ b/arch/arm/mach-omap2/board-zoom-debugboard.c
@@ -22,6 +22,7 @@
#define ZOOM_SMSC911X_GPIO 158
#define ZOOM_QUADUART_CS 3
#define ZOOM_QUADUART_GPIO 102
+#define ZOOM_QUADUART_RST_GPIO 152
#define QUART_CLK 1843200
#define DEBUG_BASE 0x08000000
#define ZOOM_ETHR_START DEBUG_BASE
@@ -110,6 +111,14 @@ static inline void __init zoom_init_quaduart(void)
unsigned long cs_mem_base;
int quart_gpio = 0;
+ if (gpio_request_one(ZOOM_QUADUART_RST_GPIO,
+ GPIOF_OUT_INIT_LOW,
+ "TL16CP754C GPIO") < 0) {
+ pr_err("Failed to request GPIO%d for TL16CP754C\n",
+ ZOOM_QUADUART_RST_GPIO);
+ return;
+ }
+
quart_cs = ZOOM_QUADUART_CS;
if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
--
1.6.0.4
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