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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2017-03-03 20:19:59 +0300
committerArchit Taneja <architt@codeaurora.org>2017-03-10 11:53:54 +0300
commit8b9e1c0de3d81c7b2118f8c403a84fad758c3305 (patch)
tree2e6a10814c4e8156daa03d9e9acc1fdff268b0c2
parent12a3a328eeb1467ef7170b9a710c0b53ee0273eb (diff)
downloadlinux-8b9e1c0de3d81c7b2118f8c403a84fad758c3305.tar.xz
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 <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Jose Abreu <joabreu@synopsys.com> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170303172007.26541-3-laurent.pinchart+renesas@ideasonboard.com
-rw-r--r--drivers/gpu/drm/bridge/dw-hdmi.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
index ce7496399ccf..906583beb08b 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw-hdmi.c
@@ -914,7 +914,7 @@ 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;
const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
@@ -946,14 +946,6 @@ 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);
@@ -1028,10 +1020,6 @@ 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++) {
@@ -1040,8 +1028,7 @@ 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;
}
@@ -1303,6 +1290,14 @@ static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi)
clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_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)