Hello.
On 22-09-2011 14:14, Richard Zhu wrote:
Signed-off-by: Richard Zhu<richard.zhu@xxxxxxxxxx>
---
arch/arm/mach-mx5/board-mx53_smd.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-mx5/board-mx53_smd.c b/arch/arm/mach-mx5/board-mx53_smd.c
index bc02894..9d06fbe 100644
--- a/arch/arm/mach-mx5/board-mx53_smd.c
+++ b/arch/arm/mach-mx5/board-mx53_smd.c
[...]
@@ -111,6 +112,19 @@ static const struct imxi2c_platform_data mx53_smd_i2c_data __initconst = {
.bitrate = 100000,
};
+static inline void mx53_smd_ahci_pwr_on(void)
+{
+ int ret;
+
+ /* Enable SATA PWR */
+ ret = gpio_request(MX53_SMD_SATA_PWR_EN, "ahci-sata-pwr");
+ if (ret) {
+ printk(KERN_ERR "failed to get SATA_PWR_EN: %d\n", ret);
+ return;
+ }
+ gpio_direction_output(MX53_SMD_SATA_PWR_EN, 1);
You can use gpio_request_one() instead of gpio_request()/gpio_direction_*().
WBR, Sergei
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