[PATCH v7 0/2] *** IT6505 driver read dt properties ***

[PATCH v7 0/2] *** IT6505 driver read dt properties ***

[allen]

This series let driver can read properties from dt to restrict dp output
bandwidth.

Changes in v3:
-Rename property name.

Changes in v4:
-Use data-lanes and link-frequencies instead of "ite,dp-output-data-lane-count" and "ite,dp-output-max-pixel-clock-mhz".

Changes in v5:
-Add a port and a endpoint.
-Move data-lanes property to the output endpoint.

Changes in v6:
-Modified data-lanes description by suggestion.

Changes in v7:
-Add commit messages to explain reason for breaking users.

allen chen (2):
  dt-bindings: it6505: add properties to restrict output bandwidth
  drm/bridge: add it6505 driver to read data-lanes and link-frequencies
    from dt

 .../bindings/display/bridge/ite,it6505.yaml   | 68 ++++++++++++++--
 drivers/gpu/drm/bridge/ite-it6505.c           | 80 ++++++++++++++++++-
 2 files changed, 139 insertions(+), 9 deletions(-)

-- 
2.25.1

[PATCH v7 1/2] dt-bindings: it6505: add properties to restrict output bandwidth

[allen]

From: allen chen <allen.chen@ite.com.tw>

Currently there are no "upstream" users. So, no existing users to break.
Add properties to restrict dp output data-lanes and clock.

Signed-off-by: Pin-Yen Lin <treapking@chromium.org>
Signed-off-by: Allen Chen <allen.chen@ite.com.tw>
---
 .../bindings/display/bridge/ite,it6505.yaml   | 68 +++++++++++++++++--
 1 file changed, 62 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
index 833d11b2303a7..b16a9d9127ddb 100644
--- a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
@@ -52,9 +52,49 @@ properties:
     maxItems: 1
     description: extcon specifier for the Power Delivery
 
-  port:
-    $ref: /schemas/graph.yaml#/properties/port
-    description: A port node pointing to DPI host port node
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: A port node pointing to DPI host port node
+
+        properties:
+          endpoint:
+            $ref: /schemas/graph.yaml#/$defs/endpoint-base
+            unevaluatedProperties: false
+
+            properties:
+              link-frequencies:
+                minItems: 1
+                maxItems: 1
+                description: Allowed max link frequencies in Hz
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: Video port for DP output
+
+        properties:
+          endpoint:
+            $ref: /schemas/graph.yaml#/$defs/endpoint-base
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                minItems: 1
+                uniqueItems: true
+                items:
+                  - enum: [ 0, 1 ]
+                  - const: 1
+                  - const: 2
+                  - const: 3
+
+    required:
+      - port@0
+      - port@1
 
 required:
   - compatible
@@ -63,6 +103,7 @@ required:
   - interrupts
   - reset-gpios
   - extcon
+  - ports
 
 additionalProperties: false
 
@@ -85,9 +126,24 @@ examples:
             reset-gpios = <&pio 179 1>;
             extcon = <&usbc_extcon>;
 
-            port {
-                it6505_in: endpoint {
-                    remote-endpoint = <&dpi_out>;
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    it6505_in: endpoint {
+                        remote-endpoint = <&dpi_out>;
+                        link-frequencies = /bits/ 64 <150000000>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    it6505_out: endpoint {
+                        remote-endpoint = <&dp_in>;
+                        data-lanes = <0 1>;
+                    };
                 };
             };
         };
-- 
2.25.1

[PATCH v7 2/2] drm/bridge: add it6505 driver to read data-lanes and link-frequencies from dt

[allen]

From: allen chen <allen.chen@ite.com.tw>

Add driver to read data-lanes and link-frequencies from dt property to
restrict output bandwidth.

Signed-off-by: Allen chen <allen.chen@ite.com.tw>
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
---
 drivers/gpu/drm/bridge/ite-it6505.c | 80 +++++++++++++++++++++++++++--
 1 file changed, 77 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index a4302492cf8df..ed4536cde3140 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -437,6 +437,8 @@ struct it6505 {
 	bool powered;
 	bool hpd_state;
 	u32 afe_setting;
+	u32 max_dpi_pixel_clock;
+	u32 max_lane_count;
 	enum hdcp_state hdcp_status;
 	struct delayed_work hdcp_work;
 	struct work_struct hdcp_wait_ksv_list;
@@ -1476,7 +1478,8 @@ static void it6505_parse_link_capabilities(struct it6505 *it6505)
 	it6505->lane_count = link->num_lanes;
 	DRM_DEV_DEBUG_DRIVER(dev, "Sink support %d lanes training",
 			     it6505->lane_count);
-	it6505->lane_count = min_t(int, it6505->lane_count, MAX_LANE_COUNT);
+	it6505->lane_count = min_t(int, it6505->lane_count,
+				   it6505->max_lane_count);
 
 	it6505->branch_device = drm_dp_is_branch(it6505->dpcd);
 	DRM_DEV_DEBUG_DRIVER(dev, "Sink %sbranch device",
@@ -2912,7 +2915,7 @@ it6505_bridge_mode_valid(struct drm_bridge *bridge,
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 		return MODE_NO_INTERLACE;
 
-	if (mode->clock > DPI_PIXEL_CLK_MAX)
+	if (mode->clock > it6505->max_dpi_pixel_clock)
 		return MODE_CLOCK_HIGH;
 
 	it6505->video_info.clock = mode->clock;
@@ -3099,10 +3102,32 @@ static int it6505_init_pdata(struct it6505 *it6505)
 	return 0;
 }
 
+static int it6505_get_data_lanes_count(const struct device_node *endpoint,
+				       const unsigned int min,
+				       const unsigned int max)
+{
+	int ret;
+
+	ret = of_property_count_u32_elems(endpoint, "data-lanes");
+	if (ret < 0)
+		return ret;
+
+	if (ret < min || ret > max)
+		return -EINVAL;
+
+	return ret;
+}
+
 static void it6505_parse_dt(struct it6505 *it6505)
 {
 	struct device *dev = &it6505->client->dev;
+	struct device_node *np = dev->of_node, *ep = NULL;
+	int len;
+	u64 link_frequencies;
+	u32 data_lanes[4];
 	u32 *afe_setting = &it6505->afe_setting;
+	u32 *max_lane_count = &it6505->max_lane_count;
+	u32 *max_dpi_pixel_clock = &it6505->max_dpi_pixel_clock;
 
 	it6505->lane_swap_disabled =
 		device_property_read_bool(dev, "no-laneswap");
@@ -3118,7 +3143,56 @@ static void it6505_parse_dt(struct it6505 *it6505)
 	} else {
 		*afe_setting = 0;
 	}
-	DRM_DEV_DEBUG_DRIVER(dev, "using afe_setting: %d", *afe_setting);
+
+	ep = of_graph_get_endpoint_by_regs(np, 1, 0);
+	of_node_put(ep);
+
+	if (ep) {
+		len = it6505_get_data_lanes_count(ep, 1, 4);
+
+		if (len > 0 && len != 3) {
+			of_property_read_u32_array(ep, "data-lanes",
+						   data_lanes, len);
+			*max_lane_count = len;
+		} else {
+			*max_lane_count = MAX_LANE_COUNT;
+			dev_err(dev, "error data-lanes, use default");
+		}
+	} else {
+		*max_lane_count = MAX_LANE_COUNT;
+		dev_err(dev, "error endpoint, use default");
+	}
+
+	ep = of_graph_get_endpoint_by_regs(np, 0, 0);
+	of_node_put(ep);
+
+	if (ep) {
+		len = of_property_read_variable_u64_array(ep,
+							  "link-frequencies",
+							  &link_frequencies, 0,
+							  1);
+		if (len >= 0) {
+			do_div(link_frequencies, 1000);
+			if (link_frequencies > 297000) {
+				dev_err(dev,
+					"max pixel clock error, use default");
+				*max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
+			} else {
+				*max_dpi_pixel_clock = link_frequencies;
+			}
+		} else {
+			dev_err(dev, "error link frequencies, use default");
+			*max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
+		}
+	} else {
+		dev_err(dev, "error endpoint, use default");
+		*max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
+	}
+
+	DRM_DEV_DEBUG_DRIVER(dev, "using afe_setting: %u, max_lane_count: %u",
+			     it6505->afe_setting, it6505->max_lane_count);
+	DRM_DEV_DEBUG_DRIVER(dev, "using max_dpi_pixel_clock: %u kHz",
+			     it6505->max_dpi_pixel_clock);
 }
 
 static ssize_t receive_timing_debugfs_show(struct file *file, char __user *buf,
-- 
2.25.1

Re: [PATCH v7 1/2] dt-bindings: it6505: add properties to restrict output bandwidth

[Krzysztof Kozlowski]

On 03/11/2022 05:12, allen wrote:
> From: allen chen <allen.chen@ite.com.tw>
> 
> Currently there are no "upstream" users. So, no existing users to break.
> Add properties to restrict dp output data-lanes and clock.
> 
> Signed-off-by: Pin-Yen Lin <treapking@chromium.org>
> Signed-off-by: Allen Chen <allen.chen@ite.com.tw>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH v7 2/2] drm/bridge: add it6505 driver to read data-lanes and link-frequencies from dt

[Pin-yen Lin]

Hi all,
Friendly ping on this patch.

Regards,
Pin-yen

On Thu, Nov 3, 2022 at 5:13 PM allen <allen.chen@ite.com.tw> wrote:
>
> From: allen chen <allen.chen@ite.com.tw>
>
> Add driver to read data-lanes and link-frequencies from dt property to
> restrict output bandwidth.
>
> Signed-off-by: Allen chen <allen.chen@ite.com.tw>
> Signed-off-by: Pin-yen Lin <treapking@chromium.org>
> ---
>  drivers/gpu/drm/bridge/ite-it6505.c | 80 +++++++++++++++++++++++++++--
>  1 file changed, 77 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
> index a4302492cf8df..ed4536cde3140 100644
> --- a/drivers/gpu/drm/bridge/ite-it6505.c
> +++ b/drivers/gpu/drm/bridge/ite-it6505.c
> @@ -437,6 +437,8 @@ struct it6505 {
>         bool powered;
>         bool hpd_state;
>         u32 afe_setting;
> +       u32 max_dpi_pixel_clock;
> +       u32 max_lane_count;
>         enum hdcp_state hdcp_status;
>         struct delayed_work hdcp_work;
>         struct work_struct hdcp_wait_ksv_list;
> @@ -1476,7 +1478,8 @@ static void it6505_parse_link_capabilities(struct it6505 *it6505)
>         it6505->lane_count = link->num_lanes;
>         DRM_DEV_DEBUG_DRIVER(dev, "Sink support %d lanes training",
>                              it6505->lane_count);
> -       it6505->lane_count = min_t(int, it6505->lane_count, MAX_LANE_COUNT);
> +       it6505->lane_count = min_t(int, it6505->lane_count,
> +                                  it6505->max_lane_count);
>
>         it6505->branch_device = drm_dp_is_branch(it6505->dpcd);
>         DRM_DEV_DEBUG_DRIVER(dev, "Sink %sbranch device",
> @@ -2912,7 +2915,7 @@ it6505_bridge_mode_valid(struct drm_bridge *bridge,
>         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
>                 return MODE_NO_INTERLACE;
>
> -       if (mode->clock > DPI_PIXEL_CLK_MAX)
> +       if (mode->clock > it6505->max_dpi_pixel_clock)
>                 return MODE_CLOCK_HIGH;
>
>         it6505->video_info.clock = mode->clock;
> @@ -3099,10 +3102,32 @@ static int it6505_init_pdata(struct it6505 *it6505)
>         return 0;
>  }
>
> +static int it6505_get_data_lanes_count(const struct device_node *endpoint,
> +                                      const unsigned int min,
> +                                      const unsigned int max)
> +{
> +       int ret;
> +
> +       ret = of_property_count_u32_elems(endpoint, "data-lanes");
> +       if (ret < 0)
> +               return ret;
> +
> +       if (ret < min || ret > max)
> +               return -EINVAL;
> +
> +       return ret;
> +}
> +
>  static void it6505_parse_dt(struct it6505 *it6505)
>  {
>         struct device *dev = &it6505->client->dev;
> +       struct device_node *np = dev->of_node, *ep = NULL;
> +       int len;
> +       u64 link_frequencies;
> +       u32 data_lanes[4];
>         u32 *afe_setting = &it6505->afe_setting;
> +       u32 *max_lane_count = &it6505->max_lane_count;
> +       u32 *max_dpi_pixel_clock = &it6505->max_dpi_pixel_clock;
>
>         it6505->lane_swap_disabled =
>                 device_property_read_bool(dev, "no-laneswap");
> @@ -3118,7 +3143,56 @@ static void it6505_parse_dt(struct it6505 *it6505)
>         } else {
>                 *afe_setting = 0;
>         }
> -       DRM_DEV_DEBUG_DRIVER(dev, "using afe_setting: %d", *afe_setting);
> +
> +       ep = of_graph_get_endpoint_by_regs(np, 1, 0);
> +       of_node_put(ep);
> +
> +       if (ep) {
> +               len = it6505_get_data_lanes_count(ep, 1, 4);
> +
> +               if (len > 0 && len != 3) {
> +                       of_property_read_u32_array(ep, "data-lanes",
> +                                                  data_lanes, len);
> +                       *max_lane_count = len;
> +               } else {
> +                       *max_lane_count = MAX_LANE_COUNT;
> +                       dev_err(dev, "error data-lanes, use default");
> +               }
> +       } else {
> +               *max_lane_count = MAX_LANE_COUNT;
> +               dev_err(dev, "error endpoint, use default");
> +       }
> +
> +       ep = of_graph_get_endpoint_by_regs(np, 0, 0);
> +       of_node_put(ep);
> +
> +       if (ep) {
> +               len = of_property_read_variable_u64_array(ep,
> +                                                         "link-frequencies",
> +                                                         &link_frequencies, 0,
> +                                                         1);
> +               if (len >= 0) {
> +                       do_div(link_frequencies, 1000);
> +                       if (link_frequencies > 297000) {
> +                               dev_err(dev,
> +                                       "max pixel clock error, use default");
> +                               *max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
> +                       } else {
> +                               *max_dpi_pixel_clock = link_frequencies;
> +                       }
> +               } else {
> +                       dev_err(dev, "error link frequencies, use default");
> +                       *max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
> +               }
> +       } else {
> +               dev_err(dev, "error endpoint, use default");
> +               *max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
> +       }
> +
> +       DRM_DEV_DEBUG_DRIVER(dev, "using afe_setting: %u, max_lane_count: %u",
> +                            it6505->afe_setting, it6505->max_lane_count);
> +       DRM_DEV_DEBUG_DRIVER(dev, "using max_dpi_pixel_clock: %u kHz",
> +                            it6505->max_dpi_pixel_clock);
>  }
>
>  static ssize_t receive_timing_debugfs_show(struct file *file, char __user *buf,
> --
> 2.25.1
>

Re: [PATCH v7 2/2] drm/bridge: add it6505 driver to read data-lanes and link-frequencies from dt

[Pin-yen Lin]

Friendly ping.

Pin-yen


Pin-yen

On Mon, Nov 21, 2022 at 1:39 PM Pin-yen Lin <treapking@chromium.org> wrote:
>
> Hi all,
> Friendly ping on this patch.
>
> Regards,
> Pin-yen
>
> On Thu, Nov 3, 2022 at 5:13 PM allen <allen.chen@ite.com.tw> wrote:
> >
> > From: allen chen <allen.chen@ite.com.tw>
> >
> > Add driver to read data-lanes and link-frequencies from dt property to
> > restrict output bandwidth.
> >
> > Signed-off-by: Allen chen <allen.chen@ite.com.tw>
> > Signed-off-by: Pin-yen Lin <treapking@chromium.org>
> > ---
> >  drivers/gpu/drm/bridge/ite-it6505.c | 80 +++++++++++++++++++++++++++--
> >  1 file changed, 77 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
> > index a4302492cf8df..ed4536cde3140 100644
> > --- a/drivers/gpu/drm/bridge/ite-it6505.c
> > +++ b/drivers/gpu/drm/bridge/ite-it6505.c
> > @@ -437,6 +437,8 @@ struct it6505 {
> >         bool powered;
> >         bool hpd_state;
> >         u32 afe_setting;
> > +       u32 max_dpi_pixel_clock;
> > +       u32 max_lane_count;
> >         enum hdcp_state hdcp_status;
> >         struct delayed_work hdcp_work;
> >         struct work_struct hdcp_wait_ksv_list;
> > @@ -1476,7 +1478,8 @@ static void it6505_parse_link_capabilities(struct it6505 *it6505)
> >         it6505->lane_count = link->num_lanes;
> >         DRM_DEV_DEBUG_DRIVER(dev, "Sink support %d lanes training",
> >                              it6505->lane_count);
> > -       it6505->lane_count = min_t(int, it6505->lane_count, MAX_LANE_COUNT);
> > +       it6505->lane_count = min_t(int, it6505->lane_count,
> > +                                  it6505->max_lane_count);
> >
> >         it6505->branch_device = drm_dp_is_branch(it6505->dpcd);
> >         DRM_DEV_DEBUG_DRIVER(dev, "Sink %sbranch device",
> > @@ -2912,7 +2915,7 @@ it6505_bridge_mode_valid(struct drm_bridge *bridge,
> >         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
> >                 return MODE_NO_INTERLACE;
> >
> > -       if (mode->clock > DPI_PIXEL_CLK_MAX)
> > +       if (mode->clock > it6505->max_dpi_pixel_clock)
> >                 return MODE_CLOCK_HIGH;
> >
> >         it6505->video_info.clock = mode->clock;
> > @@ -3099,10 +3102,32 @@ static int it6505_init_pdata(struct it6505 *it6505)
> >         return 0;
> >  }
> >
> > +static int it6505_get_data_lanes_count(const struct device_node *endpoint,
> > +                                      const unsigned int min,
> > +                                      const unsigned int max)
> > +{
> > +       int ret;
> > +
> > +       ret = of_property_count_u32_elems(endpoint, "data-lanes");
> > +       if (ret < 0)
> > +               return ret;
> > +
> > +       if (ret < min || ret > max)
> > +               return -EINVAL;
> > +
> > +       return ret;
> > +}
> > +
> >  static void it6505_parse_dt(struct it6505 *it6505)
> >  {
> >         struct device *dev = &it6505->client->dev;
> > +       struct device_node *np = dev->of_node, *ep = NULL;
> > +       int len;
> > +       u64 link_frequencies;
> > +       u32 data_lanes[4];
> >         u32 *afe_setting = &it6505->afe_setting;
> > +       u32 *max_lane_count = &it6505->max_lane_count;
> > +       u32 *max_dpi_pixel_clock = &it6505->max_dpi_pixel_clock;
> >
> >         it6505->lane_swap_disabled =
> >                 device_property_read_bool(dev, "no-laneswap");
> > @@ -3118,7 +3143,56 @@ static void it6505_parse_dt(struct it6505 *it6505)
> >         } else {
> >                 *afe_setting = 0;
> >         }
> > -       DRM_DEV_DEBUG_DRIVER(dev, "using afe_setting: %d", *afe_setting);
> > +
> > +       ep = of_graph_get_endpoint_by_regs(np, 1, 0);
> > +       of_node_put(ep);
> > +
> > +       if (ep) {
> > +               len = it6505_get_data_lanes_count(ep, 1, 4);
> > +
> > +               if (len > 0 && len != 3) {
> > +                       of_property_read_u32_array(ep, "data-lanes",
> > +                                                  data_lanes, len);
> > +                       *max_lane_count = len;
> > +               } else {
> > +                       *max_lane_count = MAX_LANE_COUNT;
> > +                       dev_err(dev, "error data-lanes, use default");
> > +               }
> > +       } else {
> > +               *max_lane_count = MAX_LANE_COUNT;
> > +               dev_err(dev, "error endpoint, use default");
> > +       }
> > +
> > +       ep = of_graph_get_endpoint_by_regs(np, 0, 0);
> > +       of_node_put(ep);
> > +
> > +       if (ep) {
> > +               len = of_property_read_variable_u64_array(ep,
> > +                                                         "link-frequencies",
> > +                                                         &link_frequencies, 0,
> > +                                                         1);
> > +               if (len >= 0) {
> > +                       do_div(link_frequencies, 1000);
> > +                       if (link_frequencies > 297000) {
> > +                               dev_err(dev,
> > +                                       "max pixel clock error, use default");
> > +                               *max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
> > +                       } else {
> > +                               *max_dpi_pixel_clock = link_frequencies;
> > +                       }
> > +               } else {
> > +                       dev_err(dev, "error link frequencies, use default");
> > +                       *max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
> > +               }
> > +       } else {
> > +               dev_err(dev, "error endpoint, use default");
> > +               *max_dpi_pixel_clock = DPI_PIXEL_CLK_MAX;
> > +       }
> > +
> > +       DRM_DEV_DEBUG_DRIVER(dev, "using afe_setting: %u, max_lane_count: %u",
> > +                            it6505->afe_setting, it6505->max_lane_count);
> > +       DRM_DEV_DEBUG_DRIVER(dev, "using max_dpi_pixel_clock: %u kHz",
> > +                            it6505->max_dpi_pixel_clock);
> >  }
> >
> >  static ssize_t receive_timing_debugfs_show(struct file *file, char __user *buf,
> > --
> > 2.25.1
> >

Re: [PATCH v7 0/2] *** IT6505 driver read dt properties ***

[Robert Foss]

On Thu, 3 Nov 2022 17:12:41 +0800, allen wrote:
> This series let driver can read properties from dt to restrict dp output
> bandwidth.
> 
> Changes in v3:
> -Rename property name.
> 
> Changes in v4:
> -Use data-lanes and link-frequencies instead of "ite,dp-output-data-lane-count" and "ite,dp-output-max-pixel-clock-mhz".
> 
> [...]

Allen: The email name you use must exactly match Signed-off-by string,
or there will be issues like the below when applying the patch.

-:139: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email name mismatch: 'From: allen chen <allen.chen@ite.com.tw>' != 'Signed-off-by: Allen chen <allen.chen@ite.com.tw>'


With that fixed, applied!

Repo: https://cgit.freedesktop.org/drm/drm-misc/


[1/2] dt-bindings: it6505: add properties to restrict output bandwidth
      commit: 380d920b582d0f83852ac6885af868d93c38095b
[2/2] drm/bridge: add it6505 driver to read data-lanes and link-frequencies from dt
      commit: 380d920b582d0f83852ac6885af868d93c38095b



Rob