* [PATCH 0/2] "no-hpd" support in CDNS DP bridge driver @ 2023-03-16 14:08 Jayesh Choudhary 2023-03-16 14:08 ` [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property Jayesh Choudhary 2023-03-16 14:08 ` [PATCH 2/2] drm: bridge: cdns-mhdp8546: Add support for no-hpd Jayesh Choudhary 0 siblings, 2 replies; 9+ messages in thread From: Jayesh Choudhary @ 2023-03-16 14:08 UTC (permalink / raw) To: dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, j-choudhary In J721s2 EVM, DP0 HPD is not connected to correct HPD pin on SOC which results in HPD detect as always connnected, so when display is not connected driver continuously retries to read EDID and DPCD registers. To handle such cases add support for no hpd configuration in cdns-mhdp driver. DT changes for display in j721s2 will be posted once we have no-hpd support and multilink DP support[1] merged. [1]: <https://lore.kernel.org/all/20230227133104.29788-1-sjakhade@cadence.com/> Rahul T R (2): dt-bindings: drm/bridge: Add no-hpd property drm: bridge: cdns-mhdp8546: Add support for no-hpd .../display/bridge/cdns,mhdp8546.yaml | 6 +++ .../drm/bridge/cadence/cdns-mhdp8546-core.c | 37 ++++++++++++++++--- .../drm/bridge/cadence/cdns-mhdp8546-core.h | 1 + 3 files changed, 39 insertions(+), 5 deletions(-) -- 2.25.1 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-16 14:08 [PATCH 0/2] "no-hpd" support in CDNS DP bridge driver Jayesh Choudhary @ 2023-03-16 14:08 ` Jayesh Choudhary 2023-03-17 12:38 ` Krzysztof Kozlowski 2023-03-16 14:08 ` [PATCH 2/2] drm: bridge: cdns-mhdp8546: Add support for no-hpd Jayesh Choudhary 1 sibling, 1 reply; 9+ messages in thread From: Jayesh Choudhary @ 2023-03-16 14:08 UTC (permalink / raw) To: dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, j-choudhary From: Rahul T R <r-ravikumar@ti.com> Add no-hpd property to the bindings, to disable hpd when not connected or unusable Signed-off-by: Rahul T R <r-ravikumar@ti.com> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com> --- .../devicetree/bindings/display/bridge/cdns,mhdp8546.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml index b2e8bc6da9d0..69d381195218 100644 --- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml @@ -57,6 +57,12 @@ properties: interrupts: maxItems: 1 + cdns,no-hpd: + type: boolean + description: + Set if the HPD line on the bridge isn't hooked up to anything or is + otherwise unusable. + ports: $ref: /schemas/graph.yaml#/properties/ports -- 2.25.1 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-16 14:08 ` [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property Jayesh Choudhary @ 2023-03-17 12:38 ` Krzysztof Kozlowski 2023-03-21 12:02 ` Jayesh Choudhary 0 siblings, 1 reply; 9+ messages in thread From: Krzysztof Kozlowski @ 2023-03-17 12:38 UTC (permalink / raw) To: Jayesh Choudhary, dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar On 16/03/2023 15:08, Jayesh Choudhary wrote: > From: Rahul T R <r-ravikumar@ti.com> > > Add no-hpd property to the bindings, to disable > hpd when not connected or unusable > > Signed-off-by: Rahul T R <r-ravikumar@ti.com> > Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com> > --- > .../devicetree/bindings/display/bridge/cdns,mhdp8546.yaml | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml > index b2e8bc6da9d0..69d381195218 100644 > --- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml > @@ -57,6 +57,12 @@ properties: > interrupts: > maxItems: 1 > > + cdns,no-hpd: There is already no-hpd property. > + type: boolean > + description: > + Set if the HPD line on the bridge isn't hooked up to anything or is > + otherwise unusable. It's the property of the panel, not bridge. Unless you want to say that bridge physically does not have HPD? Does it follow the standard in such case? Best regards, Krzysztof ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-17 12:38 ` Krzysztof Kozlowski @ 2023-03-21 12:02 ` Jayesh Choudhary 2023-03-21 12:38 ` Krzysztof Kozlowski 0 siblings, 1 reply; 9+ messages in thread From: Jayesh Choudhary @ 2023-03-21 12:02 UTC (permalink / raw) To: Krzysztof Kozlowski, dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, a-bhatia1 Hello Krzysztof, On 17/03/23 18:08, Krzysztof Kozlowski wrote: > On 16/03/2023 15:08, Jayesh Choudhary wrote: >> From: Rahul T R <r-ravikumar@ti.com> >> >> Add no-hpd property to the bindings, to disable >> hpd when not connected or unusable >> >> Signed-off-by: Rahul T R <r-ravikumar@ti.com> >> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com> >> --- >> .../devicetree/bindings/display/bridge/cdns,mhdp8546.yaml | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml >> index b2e8bc6da9d0..69d381195218 100644 >> --- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml >> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml >> @@ -57,6 +57,12 @@ properties: >> interrupts: >> maxItems: 1 >> >> + cdns,no-hpd: > > There is already no-hpd property. > >> + type: boolean >> + description: >> + Set if the HPD line on the bridge isn't hooked up to anything or is >> + otherwise unusable. > > It's the property of the panel, not bridge. Unless you want to say that > bridge physically does not have HPD? Does it follow the standard in such > case? MHDP does have hpd. But the mhdp driver should handle the cases when the hpd pin of bridge is not connected to that of the DP-connector. This is to add support for that. (optional property) -Jayesh > > Best regards, > Krzysztof > ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-21 12:02 ` Jayesh Choudhary @ 2023-03-21 12:38 ` Krzysztof Kozlowski 2023-03-21 14:28 ` Jayesh Choudhary 0 siblings, 1 reply; 9+ messages in thread From: Krzysztof Kozlowski @ 2023-03-21 12:38 UTC (permalink / raw) To: Jayesh Choudhary, dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, a-bhatia1 On 21/03/2023 13:02, Jayesh Choudhary wrote: >> >>> + type: boolean >>> + description: >>> + Set if the HPD line on the bridge isn't hooked up to anything or is >>> + otherwise unusable. >> >> It's the property of the panel, not bridge. Unless you want to say that >> bridge physically does not have HPD? Does it follow the standard in such >> case? > > MHDP does have hpd. But the mhdp driver should handle the cases when the This is about bindings, not driver. Your driver can still handle this as it wishes. > hpd pin of bridge is not connected to that of the DP-connector. This is > to add support for that. (optional property) Which is indicated by panel no-hpd, right? Or you mean now that HPD physically cannot go to panel because it is cut on the bridge side? But isn't this the same case (from hardware/bindings point, not driver) as panel would not have HPD? Best regards, Krzysztof ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-21 12:38 ` Krzysztof Kozlowski @ 2023-03-21 14:28 ` Jayesh Choudhary 2023-03-21 15:17 ` Krzysztof Kozlowski 0 siblings, 1 reply; 9+ messages in thread From: Jayesh Choudhary @ 2023-03-21 14:28 UTC (permalink / raw) To: Krzysztof Kozlowski, dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, a-bhatia1 On 21/03/23 18:08, Krzysztof Kozlowski wrote: > On 21/03/2023 13:02, Jayesh Choudhary wrote: >>> >>>> + type: boolean >>>> + description: >>>> + Set if the HPD line on the bridge isn't hooked up to anything or is >>>> + otherwise unusable. >>> >>> It's the property of the panel, not bridge. Unless you want to say that >>> bridge physically does not have HPD? Does it follow the standard in such >>> case? >> >> MHDP does have hpd. But the mhdp driver should handle the cases when the > > This is about bindings, not driver. Your driver can still handle this as > it wishes. > >> hpd pin of bridge is not connected to that of the DP-connector. This is >> to add support for that. (optional property) > > Which is indicated by panel no-hpd, right? Actually no panel is involved in this. For TI SoC J721S2, the data pipeline involves the bridge whose endpoint is directly the DP connector with compatible 'dp-connector'. And in the binding dp-connector.yaml, there isn't any 'no-hpd' property for this indication. Does this clarifies the issue? Or did I misinterpret your comment? > Or you mean now that HPD > physically cannot go to panel because it is cut on the bridge side? But > isn't this the same case (from hardware/bindings point, not driver) as > panel would not have HPD? Warm Regards, -Jayesh ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-21 14:28 ` Jayesh Choudhary @ 2023-03-21 15:17 ` Krzysztof Kozlowski 2023-03-23 12:26 ` Jayesh Choudhary 0 siblings, 1 reply; 9+ messages in thread From: Krzysztof Kozlowski @ 2023-03-21 15:17 UTC (permalink / raw) To: Jayesh Choudhary, dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, a-bhatia1 On 21/03/2023 15:28, Jayesh Choudhary wrote: > > > On 21/03/23 18:08, Krzysztof Kozlowski wrote: >> On 21/03/2023 13:02, Jayesh Choudhary wrote: >>>> >>>>> + type: boolean >>>>> + description: >>>>> + Set if the HPD line on the bridge isn't hooked up to anything or is >>>>> + otherwise unusable. >>>> >>>> It's the property of the panel, not bridge. Unless you want to say that >>>> bridge physically does not have HPD? Does it follow the standard in such >>>> case? >>> >>> MHDP does have hpd. But the mhdp driver should handle the cases when the >> >> This is about bindings, not driver. Your driver can still handle this as >> it wishes. >> >>> hpd pin of bridge is not connected to that of the DP-connector. This is >>> to add support for that. (optional property) >> >> Which is indicated by panel no-hpd, right? > > Actually no panel is involved in this. For TI SoC J721S2, the data > pipeline involves the bridge whose endpoint is directly the DP connector > with compatible 'dp-connector'. And in the binding dp-connector.yaml, > there isn't any 'no-hpd' property for this indication. > > Does this clarifies the issue? Or did I misinterpret your comment? Yes, then you only need to narrow which hardware does not have HPD hooked up. Or at least clarify that it is not about driver having or not having HPD control... Best regards, Krzysztof ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property 2023-03-21 15:17 ` Krzysztof Kozlowski @ 2023-03-23 12:26 ` Jayesh Choudhary 0 siblings, 0 replies; 9+ messages in thread From: Jayesh Choudhary @ 2023-03-23 12:26 UTC (permalink / raw) To: Krzysztof Kozlowski, dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, a-bhatia1, tomi.valkeinen On 21/03/23 20:47, Krzysztof Kozlowski wrote: > On 21/03/2023 15:28, Jayesh Choudhary wrote: >> >> >> On 21/03/23 18:08, Krzysztof Kozlowski wrote: >>> On 21/03/2023 13:02, Jayesh Choudhary wrote: >>>>> >>>>>> + type: boolean >>>>>> + description: >>>>>> + Set if the HPD line on the bridge isn't hooked up to anything or is >>>>>> + otherwise unusable. >>>>> >>>>> It's the property of the panel, not bridge. Unless you want to say that >>>>> bridge physically does not have HPD? Does it follow the standard in such >>>>> case? >>>> >>>> MHDP does have hpd. But the mhdp driver should handle the cases when the >>> >>> This is about bindings, not driver. Your driver can still handle this as >>> it wishes. >>> >>>> hpd pin of bridge is not connected to that of the DP-connector. This is >>>> to add support for that. (optional property) >>> >>> Which is indicated by panel no-hpd, right? >> >> Actually no panel is involved in this. For TI SoC J721S2, the data >> pipeline involves the bridge whose endpoint is directly the DP connector >> with compatible 'dp-connector'. And in the binding dp-connector.yaml, >> there isn't any 'no-hpd' property for this indication. >> >> Does this clarifies the issue? Or did I misinterpret your comment? > > Yes, then you only need to narrow which hardware does not have HPD > hooked up. Or at least clarify that it is not about driver having or not > having HPD control... > Okay. I will edit the commit message in v2. (after further review of the driver changes for this series) I will mention that the mhdp bridge can work without its HPD pin hooked up to the connector, but the current bridge driver throws an error when hpd line is not connected to the connector. For such cases, using this optional property, we can bypass the hpd detection and instead use the auxiliary channels connected to the DP connector to confirm the connection. Thanks, -Jayesh ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 2/2] drm: bridge: cdns-mhdp8546: Add support for no-hpd 2023-03-16 14:08 [PATCH 0/2] "no-hpd" support in CDNS DP bridge driver Jayesh Choudhary 2023-03-16 14:08 ` [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property Jayesh Choudhary @ 2023-03-16 14:08 ` Jayesh Choudhary 1 sibling, 0 replies; 9+ messages in thread From: Jayesh Choudhary @ 2023-03-16 14:08 UTC (permalink / raw) To: dri-devel, devicetree, linux-kernel Cc: andrzej.hajda, neil.armstrong, rfoss, Laurent.pinchart, jonas, jernej.skrabec, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, sam, jani.nikula, tzimmermann, javierm, ville.syrjala, r-ravikumar, lyude, alexander.deucher, sjakhade, yamonkar, j-choudhary From: Rahul T R <r-ravikumar@ti.com> In J721S2 EVMs DP0 hpd is not connected to correct hpd pin on SOC, to handle such cases, Add support for "no-hpd" property in the device tree node to disable hpd Also change the log level for dpcd read failuers to debug, since framework retries 32 times for each read Signed-off-by: Rahul T R <r-ravikumar@ti.com> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com> --- .../drm/bridge/cadence/cdns-mhdp8546-core.c | 37 ++++++++++++++++--- .../drm/bridge/cadence/cdns-mhdp8546-core.h | 1 + 2 files changed, 33 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c index f6822dfa3805..e177794b069d 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c @@ -54,6 +54,8 @@ #include "cdns-mhdp8546-hdcp.h" #include "cdns-mhdp8546-j721e.h" +static int cdns_mhdp_update_link_status(struct cdns_mhdp_device *mhdp); + static int cdns_mhdp_mailbox_read(struct cdns_mhdp_device *mhdp) { int ret, empty; @@ -749,7 +751,7 @@ static int cdns_mhdp_fw_activate(const struct firmware *fw, * MHDP_HW_STOPPED happens only due to driver removal when * bridge should already be detached. */ - if (mhdp->bridge_attached) + if (mhdp->bridge_attached && !mhdp->no_hpd) writel(~(u32)CDNS_APB_INT_MASK_SW_EVENT_INT, mhdp->regs + CDNS_APB_INT_MASK); @@ -845,7 +847,7 @@ static ssize_t cdns_mhdp_transfer(struct drm_dp_aux *aux, ret = cdns_mhdp_dpcd_read(mhdp, msg->address, msg->buffer, msg->size); if (ret) { - dev_err(mhdp->dev, + dev_dbg(mhdp->dev, "Failed to read DPCD addr %u\n", msg->address); @@ -1738,6 +1740,19 @@ static int cdns_mhdp_attach(struct drm_bridge *bridge, spin_unlock(&mhdp->start_lock); + if (mhdp->no_hpd) { + ret = wait_event_timeout(mhdp->fw_load_wq, + mhdp->hw_state == MHDP_HW_READY, + msecs_to_jiffies(100)); + if (ret == 0) { + dev_err(mhdp->dev, "%s: Timeout waiting for fw loading\n", + __func__); + return -ETIMEDOUT; + } + + cdns_mhdp_update_link_status(mhdp); + return 0; + } /* Enable SW event interrupts */ if (hw_ready) writel(~(u32)CDNS_APB_INT_MASK_SW_EVENT_INT, @@ -2256,7 +2271,16 @@ static int cdns_mhdp_update_link_status(struct cdns_mhdp_device *mhdp) mutex_lock(&mhdp->link_mutex); - mhdp->plugged = cdns_mhdp_detect_hpd(mhdp, &hpd_pulse); + if (mhdp->no_hpd) { + ret = drm_dp_dpcd_read_link_status(&mhdp->aux, status); + hpd_pulse = false; + if (ret < 0) + mhdp->plugged = false; + else + mhdp->plugged = true; + } else { + mhdp->plugged = cdns_mhdp_detect_hpd(mhdp, &hpd_pulse); + } if (!mhdp->plugged) { cdns_mhdp_link_down(mhdp); @@ -2451,6 +2475,8 @@ static int cdns_mhdp_probe(struct platform_device *pdev) mhdp->aux.dev = dev; mhdp->aux.transfer = cdns_mhdp_transfer; + mhdp->no_hpd = of_property_read_bool(dev->of_node, "cdns,no-hpd"); + mhdp->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(mhdp->regs)) { dev_err(dev, "Failed to get memory resource\n"); @@ -2526,8 +2552,9 @@ static int cdns_mhdp_probe(struct platform_device *pdev) mhdp->bridge.of_node = pdev->dev.of_node; mhdp->bridge.funcs = &cdns_mhdp_bridge_funcs; - mhdp->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | - DRM_BRIDGE_OP_HPD; + mhdp->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID; + if (!mhdp->no_hpd) + mhdp->bridge.ops |= DRM_BRIDGE_OP_HPD; mhdp->bridge.type = DRM_MODE_CONNECTOR_DisplayPort; if (mhdp->info) mhdp->bridge.timings = mhdp->info->timings; diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.h b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.h index bedddd510d17..6786ccb51387 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.h +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.h @@ -388,6 +388,7 @@ struct cdns_mhdp_device { bool link_up; bool plugged; + bool no_hpd; /* * "start_lock" protects the access to bridge_attached and -- 2.25.1 ^ permalink raw reply related [flat|nested] 9+ messages in thread
end of thread, other threads:[~2023-03-23 12:27 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-03-16 14:08 [PATCH 0/2] "no-hpd" support in CDNS DP bridge driver Jayesh Choudhary 2023-03-16 14:08 ` [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property Jayesh Choudhary 2023-03-17 12:38 ` Krzysztof Kozlowski 2023-03-21 12:02 ` Jayesh Choudhary 2023-03-21 12:38 ` Krzysztof Kozlowski 2023-03-21 14:28 ` Jayesh Choudhary 2023-03-21 15:17 ` Krzysztof Kozlowski 2023-03-23 12:26 ` Jayesh Choudhary 2023-03-16 14:08 ` [PATCH 2/2] drm: bridge: cdns-mhdp8546: Add support for no-hpd Jayesh Choudhary
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