drm/exynos/dsi: make te-gpios optional

In case of HW-TRIGGER te-gpios interrupt is not necessary. With this
patch we can get rid of 60 interrupt callbacks per second.

Change-Id: Ifbe6b55eefe41e5de63e0be58c7c34054d8e73be
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 51c21b2ae4f00b569d73bd9a78c1367d17c2e2c3..36618c03ff008e5625127ab3cc5be0b03989deca 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1318,9 +1318,8 @@ static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi)
 
        dsi->te_gpio = of_get_named_gpio(dsi->panel_node, "te-gpios", 0);
        if (!gpio_is_valid(dsi->te_gpio)) {
-               dev_err(dsi->dev, "no te-gpios specified\n");
-               ret = dsi->te_gpio;
-               goto out;
+               dev_info(dsi->dev, "no te-gpios specified\n");
+               return 0;
        }
 
        ret = gpio_request(dsi->te_gpio, "te_gpio");