[V8 PATCH 5/5] MX53 Enable the AHCI SATA on MX53 SMD board
Sergei Shtylyov
sshtylyov at mvista.com
Thu Sep 22 07:42:07 EDT 2011
Hello.
On 22-09-2011 14:14, Richard Zhu wrote:
> Signed-off-by: Richard Zhu<richard.zhu at linaro.org>
> ---
> 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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