linux-kernel - [PATCH v13 10/12] drm/mediatek: add non-continuous clock mode and EOT packet control

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Date:   Fri, 31 Mar 2017 19:30:37 +0800
From:   YT Shen <yt.shen@...iatek.com>
To:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>
CC:     David Airlie <airlied@...ux.ie>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <yingjoe.chen@...iatek.com>,
        <emil.l.velikov@...il.com>, <thierry.reding@...il.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        YT Shen <yt.shen@...iatek.com>,
        shaoming chen <shaoming.chen@...iatek.com>
Subject: [PATCH v13 10/12] drm/mediatek: add non-continuous clock mode and EOT packet control

This patch will update dsi clock control method.
1. dsi non-continue clock mode will enhance antistatic effect for panel
2. EOT packet control will judge whether dsi send end of packet or not
by customize

Signed-off-by: shaoming chen <shaoming.chen@...iatek.com>
Signed-off-by: YT Shen <yt.shen@...iatek.com>
Acked-by: CK Hu <ck.hu@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dsi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 2e2cc3a..09528e2 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -431,6 +431,9 @@ static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi)
 		break;
 	}
 
+	tmp_reg |= (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) << 6;
+	tmp_reg |= (dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET) >> 3;
+
 	writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL);
 }
 
-- 
1.9.1