From 0f8ae37bd2dc047dcbe90971a16dfff65af4510b Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 3 Mar 2017 19:19:59 +0200 Subject: [PATCH] FROMLIST: drm: bridge: dw-hdmi: Move CSC configuration out of PHY code The color space converter isn't part of the PHY, move its configuration out of PHY code. Signed-off-by: Laurent Pinchart Tested-by: Neil Armstrong Reviewed-by: Jose Abreu Signed-off-by: Archit Taneja Link: http://patchwork.freedesktop.org/patch/msgid/20170303172007.26541-3-laurent.pinchart+renesas@ideasonboard.com Change-Id: Ieea06dcb4a73e77e183901206014a42a4e6a460d Signed-off-by: Zheng Yang (am from https://patchwork.kernel.org/patch/9603291/) --- drivers/gpu/drm/bridge/dw-hdmi.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c index 0fe31e216814..3ed35b51793b 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/dw-hdmi.c @@ -1193,7 +1193,7 @@ static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable) HDMI_PHY_CONF0_SELDIPIF_MASK); } -static int hdmi_phy_configure(struct dw_hdmi *hdmi, int cscon) +static int hdmi_phy_configure(struct dw_hdmi *hdmi) { u8 val, msec, tmds_cfg; const struct dw_hdmi_plat_data *pdata = hdmi->plat_data; @@ -1225,14 +1225,6 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi, int cscon) return -EINVAL; } - /* Enable csc path */ - if (cscon) - val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH; - else - val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS; - - hdmi_writeb(hdmi, val, HDMI_MC_FLOWCTRL); - /* gen2 tx power off */ dw_hdmi_phy_gen2_txpwron(hdmi, 0); @@ -1332,10 +1324,6 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi, int cscon) static int dw_hdmi_phy_init(struct dw_hdmi *hdmi) { int i, ret; - bool cscon; - - /*check csc whether needed activated in HDMI mode */ - cscon = hdmi->sink_is_hdmi && is_color_space_conversion(hdmi); /* HDMI Phy spec says to do the phy initialization sequence twice */ for (i = 0; i < 2; i++) { @@ -1344,8 +1332,7 @@ static int dw_hdmi_phy_init(struct dw_hdmi *hdmi) dw_hdmi_phy_enable_tmds(hdmi, 0); dw_hdmi_phy_enable_powerdown(hdmi, true); - /* Enable CSC */ - ret = hdmi_phy_configure(hdmi, cscon); + ret = hdmi_phy_configure(hdmi); if (ret) return ret; } @@ -1717,6 +1704,14 @@ static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi) clkdis &= ~HDMI_MC_CLKDIS_PREPCLK_DISABLE; hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS); } + + /* Enable color space conversion if needed (for HDMI sinks only). */ + if (hdmi->sink_is_hdmi && is_color_space_conversion(hdmi)) + hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH, + HDMI_MC_FLOWCTRL); + else + hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS, + HDMI_MC_FLOWCTRL); } static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi) -- 2.34.1