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authorIgor Grinberg <grinberg@compulab.co.il>2012-06-21 01:36:02 -0700
committerTony Lindgren <tony@atomide.com>2012-06-21 01:36:02 -0700
commit97ee9f01d6f26a69847d7a0ea07be756fe9f8eb6 (patch)
treedbfbf8bc99130470ba4561f23afe1fad5831a4f3 /arch/arm/mach-omap2/common-board-devices.c
parent485802a6c524e62b5924849dd727ddbb1497cc71 (diff)
ARM: OMAP: fix the ads7846 init code
In case a board provides the gpio_pendown and not board_pdata, the GPIO debounce is not taken care of. Fix this by taking care of GPIO debounce in any case. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/common-board-devices.c')
-rw-r--r--arch/arm/mach-omap2/common-board-devices.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/arch/arm/mach-omap2/common-board-devices.c b/arch/arm/mach-omap2/common-board-devices.c
index 1706ebcec08..c1875862679 100644
--- a/arch/arm/mach-omap2/common-board-devices.c
+++ b/arch/arm/mach-omap2/common-board-devices.c
@@ -63,28 +63,30 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce,
struct spi_board_info *spi_bi = &ads7846_spi_board_info;
int err;
- if (board_pdata && board_pdata->get_pendown_state) {
- err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
- if (err) {
- pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
- return;
- }
- gpio_export(gpio_pendown, 0);
-
- if (gpio_debounce)
- gpio_set_debounce(gpio_pendown, gpio_debounce);
+ err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
+ if (err) {
+ pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
+ return;
}
+ if (gpio_debounce)
+ gpio_set_debounce(gpio_pendown, gpio_debounce);
+
spi_bi->bus_num = bus_num;
spi_bi->irq = gpio_to_irq(gpio_pendown);
if (board_pdata) {
board_pdata->gpio_pendown = gpio_pendown;
spi_bi->platform_data = board_pdata;
+ if (board_pdata->get_pendown_state)
+ gpio_export(gpio_pendown, 0);
} else {
ads7846_config.gpio_pendown = gpio_pendown;
}
+ if (!board_pdata || (board_pdata && !board_pdata->get_pendown_state))
+ gpio_free(gpio_pendown);
+
spi_register_board_info(&ads7846_spi_board_info, 1);
}
#else