Re: [PATCH 2/4] OMAPDSS: panel-sharp-ls037v7dw01: update to use gpiod

Tomi Valkeinen
2014-05-07T08:15:12Z

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On 30/04/14 02:52, Tony Lindgren wrote:
> Using gpiod will make it easier to add device tree support
> for this panel in the following patches.
>
> Note that all the GPIOs for this panel are optional, any
> of the the GPIOs could be configured with external pulls
> instead of GPIOs, so let's not error out if GPIOs are not
> found to make the panel more generic.
>
> Signed-off-by: Tony Lindgren <tony@atomide.com>
> ---
> .../omap2/displays-new/panel-sharp-ls037v7dw01.c | 92 +++++++++-------------
> 1 file changed, 38 insertions(+), 54 deletions(-)

<snip>

> +static struct gpio_desc *
> +sharp_ls_get_gpio(struct device *dev, int gpio, unsigned long flags,
> + char *desc)
> +{
> + int r;
> +
> + r = devm_gpio_request_one(dev, gpio, flags, desc);
> + if (r) {
> + dev_err(dev, "no %s gpio\n", desc);

As it's fine to not have a gpio, I guess this error print should be removed.

Also, if the error is EPROBE_DEFER, the driver should fail and return
that. The same goes for the DT version in the next patch.

Tomi

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