[PATCH] msm: complete implementation of gpio utility functions.
From: Gregory Bean <hidden>
Date: 2010-07-26 20:38:05
Also in:
linux-arm-msm, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Implement the second half of the gpio_request_enable and gpio_disable_free gpio/tlmm utility functions, now that gpiolib has found its way to the MSM/QSD. Now these functions actually request and free, like they claim to. Signed-off-by: Gregory Bean <redacted> --- arch/arm/mach-msm/gpio.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-msm/gpio.c b/arch/arm/mach-msm/gpio.c
index bc32c84..796990f 100644
--- a/arch/arm/mach-msm/gpio.c
+++ b/arch/arm/mach-msm/gpio.c@@ -71,15 +71,47 @@ void msm_gpios_disable(const struct msm_gpio *table, int size) } EXPORT_SYMBOL(msm_gpios_disable); +int msm_gpios_request(const struct msm_gpio *table, int size) +{ + int i, result; + + for (i = 0; i < size; ++i) { + result = gpio_request(GPIO_PIN(table[i].gpio_cfg), + table[i].label); + if (result < 0) + goto err; + } + + return 0; +err: + msm_gpios_free(table, i); + return result; +} +EXPORT_SYMBOL(msm_gpios_request); + +void msm_gpios_free(const struct msm_gpio *table, int size) +{ + int i; + + for (i = 0; i < size; ++i) + gpio_free(GPIO_PIN(table[i].gpio_cfg)); +} +EXPORT_SYMBOL(msm_gpios_free); + int msm_gpios_request_enable(const struct msm_gpio *table, int size) { int rc = msm_gpios_enable(table, size); + + if (rc == 0) + rc = msm_gpios_request(table, size); + return rc; } EXPORT_SYMBOL(msm_gpios_request_enable); void msm_gpios_disable_free(const struct msm_gpio *table, int size) { + msm_gpios_free(table, size); msm_gpios_disable(table, size); } EXPORT_SYMBOL(msm_gpios_disable_free);
--
1.7.0.4
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