Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   wangyan wang <wangyan.wang@mediatek.com>
To:     Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>, CK Hu <ck.hu@mediatek.com>
CC:     wangyan wang <wangyan.wang@mediatek.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        chunhui dai <chunhui.dai@mediatek.com>,
        Colin Ian King <colin.king@canonical.com>,
        Sean Wang <sean.wang@mediatek.com>,
        Ryder Lee <ryder.lee@mediatek.com>,
        <linux-clk@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        <dri-devel@lists.freedesktop.org>, <srv_heupstream@mediatek.com>
Subject: [PATCH V7 5/6] drm/mediatek: using new factor for tvdpll in MT2701
Date:   Wed, 27 Mar 2019 17:19:28 +0800
Message-ID: <20190327091929.73162-6-wangyan.wang@mediatek.com>
In-Reply-To: <20190327091929.73162-1-wangyan.wang@mediatek.com>
References: <20190327091929.73162-1-wangyan.wang@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: chunhui dai <chunhui.dai@mediatek.com>

The factor depends on the divider of DPI in MT2701, therefore,
we should fix this factor to the right and new one.

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: wangyan wang <wangyan.wang@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 69c6e42dad6b..4a2f4a650494 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -662,13 +662,11 @@ static unsigned int mt8173_calculate_factor(int clock)
 static unsigned int mt2701_calculate_factor(int clock)
 {
 	if (clock <= 64000)
-		return 16;
-	else if (clock <= 128000)
-		return 8;
-	else if (clock <= 256000)
 		return 4;
-	else
+	else if (clock <= 128000)
 		return 2;
+	else
+		return 1;
 }
 
 static const struct mtk_dpi_conf mt8173_conf = {
-- 
2.14.1