| Message ID | 20180309222327.18689-4-enric.balletbo@collabora.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
Am Freitag, 9. März 2018, 23:22:54 CET schrieb Enric Balletbo i Serra: > From: zain wang <wzz@rock-chips.com> > > There is a race between AUX CH bring-up and enabling bridge which will > cause link training to fail. To avoid hitting it, don't change psr state > while enabling the bridge. > > Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> > Cc: Sean Paul <seanpaul@chromium.org> > Signed-off-by: zain wang <wzz@rock-chips.com> > Signed-off-by: Caesar Wang <wxt@rock-chips.com> > [seanpaul fixed up the commit message a bit and renamed *_supported to > *_enabled] Signed-off-by: Sean Paul <seanpaul@chromium.org> > Signed-off-by: Thierry Escande <thierry.escande@collabora.com> > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> > Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Saturday 10 March 2018 03:52 AM, Enric Balletbo i Serra wrote: > From: zain wang <wzz@rock-chips.com> > > There is a race between AUX CH bring-up and enabling bridge which will > cause link training to fail. To avoid hitting it, don't change psr state > while enabling the bridge. Reviewed-by: Archit Taneja <architt@codeaurora.org> > > Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> > Cc: Sean Paul <seanpaul@chromium.org> > Signed-off-by: zain wang <wzz@rock-chips.com> > Signed-off-by: Caesar Wang <wxt@rock-chips.com> > [seanpaul fixed up the commit message a bit and renamed *_supported to *_enabled] > Signed-off-by: Sean Paul <seanpaul@chromium.org> > Signed-off-by: Thierry Escande <thierry.escande@collabora.com> > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> > Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> > --- > > drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 15 ++++++++------- > drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 2 +- > drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 2 +- > include/drm/bridge/analogix_dp.h | 2 +- > 4 files changed, 11 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > index e738aa6de1af..ee00d3d920e0 100644 > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > @@ -98,18 +98,18 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) > return 0; > } > > -int analogix_dp_psr_supported(struct analogix_dp_device *dp) > +int analogix_dp_psr_enabled(struct analogix_dp_device *dp) > { > > - return dp->psr_support; > + return dp->psr_enable; > } > -EXPORT_SYMBOL_GPL(analogix_dp_psr_supported); > +EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled); > > int analogix_dp_enable_psr(struct analogix_dp_device *dp) > { > struct edp_vsc_psr psr_vsc; > > - if (!dp->psr_support) > + if (!dp->psr_enable) > return 0; > > /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ > @@ -131,7 +131,7 @@ int analogix_dp_disable_psr(struct analogix_dp_device *dp) > struct edp_vsc_psr psr_vsc; > int ret; > > - if (!dp->psr_support) > + if (!dp->psr_enable) > return 0; > > /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ > @@ -871,8 +871,8 @@ static void analogix_dp_commit(struct analogix_dp_device *dp) > /* Enable video */ > analogix_dp_start_video(dp); > > - dp->psr_support = analogix_dp_detect_sink_psr(dp); > - if (dp->psr_support) > + dp->psr_enable = analogix_dp_detect_sink_psr(dp); > + if (dp->psr_enable) > analogix_dp_enable_sink_psr(dp); > } > > @@ -1117,6 +1117,7 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge) > if (ret) > DRM_ERROR("failed to setup the panel ret = %d\n", ret); > > + dp->psr_enable = false; > dp->dpms_mode = DRM_MODE_DPMS_OFF; > } > > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > index b039b28d8fcc..e135a42cb19e 100644 > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > @@ -170,7 +170,7 @@ struct analogix_dp_device { > int dpms_mode; > int hpd_gpio; > bool force_hpd; > - bool psr_support; > + bool psr_enable; > > struct mutex panel_lock; > bool panel_is_modeset; > diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > index 36334839a3f8..3e8bf79bea58 100644 > --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > @@ -82,7 +82,7 @@ static void analogix_dp_psr_set(struct drm_encoder *encoder, bool enabled) > struct rockchip_dp_device *dp = to_dp(encoder); > int ret; > > - if (!analogix_dp_psr_supported(dp->adp)) > + if (!analogix_dp_psr_enabled(dp->adp)) > return; > > DRM_DEV_DEBUG(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit"); > diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h > index 711fff9b6803..e9a1116d2f8e 100644 > --- a/include/drm/bridge/analogix_dp.h > +++ b/include/drm/bridge/analogix_dp.h > @@ -41,7 +41,7 @@ struct analogix_dp_plat_data { > struct drm_connector *); > }; > > -int analogix_dp_psr_supported(struct analogix_dp_device *dp); > +int analogix_dp_psr_enabled(struct analogix_dp_device *dp); > int analogix_dp_enable_psr(struct analogix_dp_device *dp); > int analogix_dp_disable_psr(struct analogix_dp_device *dp); > > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Am Freitag, 9. März 2018, 23:22:54 CET schrieb Enric Balletbo i Serra: > From: zain wang <wzz@rock-chips.com> > > There is a race between AUX CH bring-up and enabling bridge which will > cause link training to fail. To avoid hitting it, don't change psr state > while enabling the bridge. > > Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> > Cc: Sean Paul <seanpaul@chromium.org> > Signed-off-by: zain wang <wzz@rock-chips.com> > Signed-off-by: Caesar Wang <wxt@rock-chips.com> > [seanpaul fixed up the commit message a bit and renamed *_supported to > *_enabled] Signed-off-by: Sean Paul <seanpaul@chromium.org> > Signed-off-by: Thierry Escande <thierry.escande@collabora.com> > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> > Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> applied to drm-misc-next Thanks Heiko -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index e738aa6de1af..ee00d3d920e0 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -98,18 +98,18 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) return 0; } -int analogix_dp_psr_supported(struct analogix_dp_device *dp) +int analogix_dp_psr_enabled(struct analogix_dp_device *dp) { - return dp->psr_support; + return dp->psr_enable; } -EXPORT_SYMBOL_GPL(analogix_dp_psr_supported); +EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled); int analogix_dp_enable_psr(struct analogix_dp_device *dp) { struct edp_vsc_psr psr_vsc; - if (!dp->psr_support) + if (!dp->psr_enable) return 0; /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ @@ -131,7 +131,7 @@ int analogix_dp_disable_psr(struct analogix_dp_device *dp) struct edp_vsc_psr psr_vsc; int ret; - if (!dp->psr_support) + if (!dp->psr_enable) return 0; /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ @@ -871,8 +871,8 @@ static void analogix_dp_commit(struct analogix_dp_device *dp) /* Enable video */ analogix_dp_start_video(dp); - dp->psr_support = analogix_dp_detect_sink_psr(dp); - if (dp->psr_support) + dp->psr_enable = analogix_dp_detect_sink_psr(dp); + if (dp->psr_enable) analogix_dp_enable_sink_psr(dp); } @@ -1117,6 +1117,7 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge) if (ret) DRM_ERROR("failed to setup the panel ret = %d\n", ret); + dp->psr_enable = false; dp->dpms_mode = DRM_MODE_DPMS_OFF; } diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h index b039b28d8fcc..e135a42cb19e 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h @@ -170,7 +170,7 @@ struct analogix_dp_device { int dpms_mode; int hpd_gpio; bool force_hpd; - bool psr_support; + bool psr_enable; struct mutex panel_lock; bool panel_is_modeset; diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index 36334839a3f8..3e8bf79bea58 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -82,7 +82,7 @@ static void analogix_dp_psr_set(struct drm_encoder *encoder, bool enabled) struct rockchip_dp_device *dp = to_dp(encoder); int ret; - if (!analogix_dp_psr_supported(dp->adp)) + if (!analogix_dp_psr_enabled(dp->adp)) return; DRM_DEV_DEBUG(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit"); diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h index 711fff9b6803..e9a1116d2f8e 100644 --- a/include/drm/bridge/analogix_dp.h +++ b/include/drm/bridge/analogix_dp.h @@ -41,7 +41,7 @@ struct analogix_dp_plat_data { struct drm_connector *); }; -int analogix_dp_psr_supported(struct analogix_dp_device *dp); +int analogix_dp_psr_enabled(struct analogix_dp_device *dp); int analogix_dp_enable_psr(struct analogix_dp_device *dp); int analogix_dp_disable_psr(struct analogix_dp_device *dp);