From: YT Shen <yt.shen@mediatek.com>
To: <dri-devel@lists.freedesktop.org>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>,
Matthias Brugger <matthias.bgg@gmail.com>,
YT Shen <yt.shen@mediatek.com>,
Daniel Kurtz <djkurtz@chromium.org>,
Mao Huang <littlecvr@chromium.org>, CK Hu <ck.hu@mediatek.com>,
Bibby Hsieh <bibby.hsieh@mediatek.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Thierry Reding <thierry.reding@gmail.com>,
Jie Qiu <jie.qiu@mediatek.com>,
Maxime Ripard <maxime.ripard@free-electrons.com>,
Chris Wilson <chris@chris-wilson.co.uk>,
shaoming chen <shaoming.chen@mediatek.com>,
Jitao Shi <jitao.shi@mediatek.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Dan Carpenter <dan.carpenter@oracle.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <srv_heupstream@mediatek.com>,
Sascha Hauer <kernel@pengutronix.de>, <yingjoe.chen@mediatek.com>,
<emil.l.velikov@gmail.com>
Subject: [PATCH v10 09/13] drm/mediatek: add mipi_tx data rate check
Date: Fri, 25 Nov 2016 18:34:32 +0800 [thread overview]
Message-ID: <1480070076-6196-10-git-send-email-yt.shen@mediatek.com> (raw)
In-Reply-To: <1480070076-6196-1-git-send-email-yt.shen@mediatek.com>
modify data rate limitation (>lGbps/lane) for mipitx
Signed-off-by: shaoming chen <shaoming.chen@mediatek.com>
Signed-off-by: YT Shen <yt.shen@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_mipi_tx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
index fd84914..1ef00ac 100644
--- a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
+++ b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
@@ -177,7 +177,9 @@ static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
dev_dbg(mipi_tx->dev, "prepare: %u Hz\n", mipi_tx->data_rate);
- if (mipi_tx->data_rate >= 500000000) {
+ if (mipi_tx->data_rate > 1250000000) {
+ return -EINVAL;
+ } else if (mipi_tx->data_rate >= 500000000) {
txdiv = 1;
txdiv0 = 0;
txdiv1 = 0;
--
1.9.1
next prev parent reply other threads:[~2016-11-25 10:43 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-25 10:34 [PATCH v10 00/13] MT2701 DRM support YT Shen
2016-11-25 10:34 ` [PATCH v10 01/13] drm/mediatek: add helpers for coverting from the generic components YT Shen
2016-11-25 10:34 ` [PATCH v10 02/13] drm/mediatek: add *driver_data for different hardware settings YT Shen
2016-11-30 6:42 ` Daniel Kurtz
2016-12-05 12:50 ` YT Shen
2016-11-25 10:34 ` [PATCH v10 03/13] drm/mediatek: add shadow register support YT Shen
2016-11-25 10:34 ` [PATCH v10 04/13] drm/mediatek: add BLS component YT Shen
2016-11-25 10:34 ` [PATCH v10 05/13] drm/mediatek: update display module connections YT Shen
2016-11-25 10:34 ` [PATCH v10 06/13] drm/mediatek: cleaning up and refine YT Shen
2016-11-25 10:34 ` [PATCH v10 07/13] drm/mediatek: add dsi interrupt control YT Shen
2016-11-25 10:34 ` [PATCH v10 08/13] drm/mediatek: add dsi transfer function YT Shen
2016-11-25 10:34 ` YT Shen [this message]
2016-11-30 11:05 ` [PATCH v10 09/13] drm/mediatek: add mipi_tx data rate check CK Hu
2016-11-25 10:34 ` [PATCH v10 10/13] drm/mediatek: add dsi ulp mode control YT Shen
2016-12-01 1:10 ` CK Hu
2016-11-25 10:34 ` [PATCH v10 11/13] drm/mediatek: add dsi rxtx control YT Shen
2016-11-30 10:47 ` CK Hu
2016-11-25 10:34 ` [PATCH v10 12/13] drm/mediatek: update DSI sub driver flow for sending commands to panel YT Shen
2016-11-30 7:58 ` CK Hu
2016-12-05 12:43 ` YT Shen
2016-11-25 10:34 ` [PATCH v10 13/13] drm/mediatek: add support for Mediatek SoC MT2701 YT Shen
2016-11-30 14:03 ` Matthias Brugger
2016-12-05 13:01 ` YT Shen
2016-11-30 8:59 ` [PATCH v10 00/13] MT2701 DRM support CK Hu
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