[PATCH 09/33] drm/omap: tpd12s015: CT_CP_HPD as optional gpio

Tomi Valkeinen tomi.valkeinen at ti.com
Fri Feb 19 09:47:44 UTC 2016

From: Manisha Agrawal <manisha.agrawal at ti.com>

tpd12s015 HW has LS_OE, CT_CP_HPD and HPD gpios. Out of these gpios,
driver only handled LS_OE as optional. The CT_CP_HPD gpio should also
be treated as optional gpio as it is just a power saving feature. Some
boards hardwire this gpio to be always enable. In this patch, all access
to CT_CP_HPD gpio is made optional.

Signed-off-by: Manisha Agrawal <manisha.agrawal at ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
 drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c b/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
index 7fa80f5b4c6b..916a89978387 100644
--- a/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
+++ b/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
@@ -236,7 +236,7 @@ static int tpd_probe(struct platform_device *pdev)
 		return r;
-	gpio = devm_gpiod_get_index(&pdev->dev, NULL, 0,
+	gpio = devm_gpiod_get_index_optional(&pdev->dev, NULL, 0,
 	if (IS_ERR(gpio))
 		goto err_gpio;

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