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SubjectRe: [PATCH 2/2] AM35xx-Craneboard:Display: Add DVI and TV Support
Hello.

On 29-04-2011 15:41, srinath@mistralsolutions.com wrote:

> From: Srinath <srinath@mistralsolutions.com>

> Added Display (DVI and TV) support for CraneBoard.

> Signed-off-by: Srinath <srinath@mistralsolutions.com>
[...]

> diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
> index 05867b5..83fe85b 100644
> --- a/arch/arm/mach-omap2/board-am3517crane.c
> +++ b/arch/arm/mach-omap2/board-am3517crane.c
[...]
> @@ -66,11 +69,83 @@ static struct usbhs_omap_board_data usbhs_bdata __initdata = {
> .reset_gpio_port[2] = -EINVAL
> };
>
> +static void __init am3517_crane_display_init(void)
> +{
> + int ret;
> +
> + ret = omap_mux_init_gpio(GPIO_DVI_ENABLE, OMAP_PIN_OUTPUT);
> + if (ret< 0) {
> + pr_err("Can not configure mux for GPIO_DVI_ENABLE %d\n",
> + GPIO_DVI_ENABLE);
> + return;
> + }
> +
> + ret = gpio_request(GPIO_DVI_ENABLE, "dvi_enable");
> + if (ret< 0) {
> + pr_err("Can not request GPIO %d\n", GPIO_DVI_ENABLE);
> + return;
> + }
> +
> + ret = gpio_direction_output(GPIO_DVI_ENABLE, 1);
> + if (ret< 0) {
> + gpio_free(GPIO_DVI_ENABLE);
> + pr_err("Unable to enable DVI\n");
> + return;
> + }

You can use gpio_request_one() ISO gpio_request()/gpio_direction_output().

WBR, Sergei


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