| Message ID | 20190416145848.11932-4-frank-w@public-files.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | make hdmi work on bananapi-r2 | expand |
Hi, Frank: On Tue, 2019-04-16 at 16:58 +0200, Frank Wunderlich wrote: > From: chunhui dai <chunhui.dai@mediatek.com> > > - 1080 plg in/out with ng/ok > - support other resolutions like 1280x1024 The description is so simple and I could not understand why pll_default_off could fix this problem. And why only MT2701 has this problem? Please describe more clear about this patch. Regards, CK > > Signed-off-by: chunhui dai <chunhui.dai@mediatek.com> > Signed-off-by: Frank Wunderlich <frank-w@public-files.de> > Tested-by: Frank Wunderlich <frank-w@public-files.de> > --- > drivers/gpu/drm/mediatek/mtk_hdmi_phy.c | 3 +++ > drivers/gpu/drm/mediatek/mtk_hdmi_phy.h | 1 + > drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c | 1 + > 3 files changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c > index 5223498502c4..edadb7a700f1 100644 > --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c > +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c > @@ -184,6 +184,9 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev) > return PTR_ERR(phy_provider); > } > > + if (hdmi_phy->conf->pll_default_off) > + hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy); > + > return of_clk_add_provider(dev->of_node, of_clk_src_simple_get, > hdmi_phy->pll); > } > diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h > index 2d8b3182470d..f472fdeb63dc 100644 > --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h > +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h > @@ -22,6 +22,7 @@ struct mtk_hdmi_phy; > struct mtk_hdmi_phy_conf { > bool tz_disabled; > unsigned long flags; > + bool pll_default_off; > const struct clk_ops *hdmi_phy_clk_ops; > void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy); > void (*hdmi_phy_disable_tmds)(struct mtk_hdmi_phy *hdmi_phy); > diff --git a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c > index d3cc4022e988..6fbedacfc1e8 100644 > --- a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c > +++ b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c > @@ -239,6 +239,7 @@ static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy) > struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = { > .tz_disabled = true, > .flags = CLK_SET_RATE_GATE, > + .pll_default_off = true, > .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops, > .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds, > .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds, > -- > 2.17.1 >
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c index 5223498502c4..edadb7a700f1 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c @@ -184,6 +184,9 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev) return PTR_ERR(phy_provider); } + if (hdmi_phy->conf->pll_default_off) + hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy); + return of_clk_add_provider(dev->of_node, of_clk_src_simple_get, hdmi_phy->pll); } diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h index 2d8b3182470d..f472fdeb63dc 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h @@ -22,6 +22,7 @@ struct mtk_hdmi_phy; struct mtk_hdmi_phy_conf { bool tz_disabled; unsigned long flags; + bool pll_default_off; const struct clk_ops *hdmi_phy_clk_ops; void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy); void (*hdmi_phy_disable_tmds)(struct mtk_hdmi_phy *hdmi_phy); diff --git a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c index d3cc4022e988..6fbedacfc1e8 100644 --- a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c +++ b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c @@ -239,6 +239,7 @@ static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy) struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = { .tz_disabled = true, .flags = CLK_SET_RATE_GATE, + .pll_default_off = true, .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops, .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds, .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,