linux-kernel - [PATCH v10 10/13] drm/mediatek: add dsi ulp mode control

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Date:   Fri, 25 Nov 2016 18:34:33 +0800
From:   YT Shen <yt.shen@...iatek.com>
To:     <dri-devel@...ts.freedesktop.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
CC:     David Airlie <airlied@...ux.ie>,
        Matthias Brugger <matthias.bgg@...il.com>,
        YT Shen <yt.shen@...iatek.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Mao Huang <littlecvr@...omium.org>, CK Hu <ck.hu@...iatek.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Thierry Reding <thierry.reding@...il.com>,
        Jie Qiu <jie.qiu@...iatek.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        shaoming chen <shaoming.chen@...iatek.com>,
        Jitao Shi <jitao.shi@...iatek.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <srv_heupstream@...iatek.com>,
        Sascha Hauer <kernel@...gutronix.de>,
        <yingjoe.chen@...iatek.com>, <emil.l.velikov@...il.com>
Subject: [PATCH v10 10/13] drm/mediatek: add dsi ulp mode control

modify dsi enter ultra low power mode method

Signed-off-by: shaoming chen <shaoming.chen@...iatek.com>
Signed-off-by: YT Shen <yt.shen@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index d03a0f1..01df829 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -289,7 +289,7 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi)
 static void mtk_dsi_clk_ulp_mode_enter(struct mtk_dsi *dsi)
 {
 	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, 0);
-	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_ULPM_EN, 0);
+	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_ULPM_EN, LC_ULPM_EN);
 }
 
 static void mtk_dsi_clk_ulp_mode_leave(struct mtk_dsi *dsi)
@@ -302,7 +302,7 @@ static void mtk_dsi_clk_ulp_mode_leave(struct mtk_dsi *dsi)
 static void mtk_dsi_lane0_ulp_mode_enter(struct mtk_dsi *dsi)
 {
 	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_HS_TX_EN, 0);
-	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_ULPM_EN, 0);
+	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_ULPM_EN, LD0_ULPM_EN);
 }
 
 static void mtk_dsi_lane0_ulp_mode_leave(struct mtk_dsi *dsi)
-- 
1.9.1