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From: Andrzej Hajda <a.hajda@samsung.com>
To: Inki Dae <inki.dae@samsung.com>,
	dri-devel@lists.freedesktop.org,
	linux-samsung-soc@vger.kernel.org
Cc: Andrzej Hajda <a.hajda@samsung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>
Subject: [PATCH] drm/exynos/dsi: make te-gpios optional
Date: Mon, 13 Mar 2017 16:30:22 +0100	[thread overview]
Message-ID: <1489419022-20501-1-git-send-email-a.hajda@samsung.com> (raw)
In-Reply-To: CGME20170313153029eucas1p114f034a5dea7374f6d14d4d1636d0b68@eucas1p1.samsung.com

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

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 812e2ec..f95fac5 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1349,9 +1349,8 @@ 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");
-- 
2.7.4

       reply	other threads:[~2017-03-13 15:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20170313153029eucas1p114f034a5dea7374f6d14d4d1636d0b68@eucas1p1.samsung.com>
2017-03-13 15:30 ` Andrzej Hajda [this message]
2017-03-15  3:48   ` [PATCH] drm/exynos/dsi: make te-gpios optional Inki Dae
2017-03-15  7:58     ` Andrzej Hajda
2017-03-15  9:07       ` Inki Dae

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