From: Zheng Yang <zhengyang@rock-chips.com>
Date: Tue, 25 Aug 2015 07:59:54 +0000 (+0800)
Subject: hdmi:rk3288/rk3368: No need to reset tmdsclk in uboot mode.
X-Git-Tag: firefly_0821_release~3825
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=079c8ab2b4e484b5f9b73a23f7734e9bb910be23;p=firefly-linux-kernel-4.4.55.git

hdmi:rk3288/rk3368: No need to reset tmdsclk in uboot mode.

If hdcp is enalbed, reset tmdsclk in uboot mode will make hdcp unstable,
which make sink check hdcp failed and show black picture.

Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
---

diff --git a/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c b/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
index ae940159c670..5d8cec285582 100755
--- a/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
+++ b/drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
@@ -690,8 +690,9 @@ static int rockchip_hdmiv2_video_framecomposer(struct hdmi *hdmi_drv,
 	 */
 	hdmi_writel(hdmi_dev, FC_EXCTRLSPAC,
 		    (hdmi_dev->tmdsclk/1000) * 50 / (256 * 512));
-	hdmi_msk_reg(hdmi_dev, MC_SWRSTZREQ,
-		     m_TMDS_SWRST, v_TMDS_SWRST(0));
+	if (!hdmi_drv->uboot)
+		hdmi_msk_reg(hdmi_dev, MC_SWRSTZREQ,
+			     m_TMDS_SWRST, v_TMDS_SWRST(0));
 #if 0
 	/*Set PreambleFilter*/
 	for (i = 0; i < 3; i++) {