diff mbox series

[v11,01/12] dt-bindings: mediatek,dpi: Add DP_INTF compatible

Message ID 20220613064841.10481-2-rex-bc.chen@mediatek.com (mailing list archive)
State New, archived
Headers show
Series drm/mediatek: Add MT8195 dp_intf driver | expand

Commit Message

Rex-BC Chen (陳柏辰) June 13, 2022, 6:48 a.m. UTC 
From: Markus Schneider-Pargmann <msp@baylibre.com>

DP_INTF is similar to DPI but does not have the exact same feature set
or register layouts.

DP_INTF is the sink of the display pipeline that is connected to the
DisplayPort controller and encoder unit. It takes the same clocks as
DPI.

In this patch, we also do these string replacement:
- s/mediatek/MediaTek/ in title.
- s/Mediatek/MediaTek/ in description.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
---
 .../bindings/display/mediatek/mediatek,dpi.yaml     | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

Comments

Rob Herring (Arm) June 13, 2022, 1:33 p.m. UTC | #1 
On Mon, 13 Jun 2022 14:48:30 +0800, Bo-Chen Chen wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
> 
> DP_INTF is similar to DPI but does not have the exact same feature set
> or register layouts.
> 
> DP_INTF is the sink of the display pipeline that is connected to the
> DisplayPort controller and encoder unit. It takes the same clocks as
> DPI.
> 
> In this patch, we also do these string replacement:
> - s/mediatek/MediaTek/ in title.
> - s/Mediatek/MediaTek/ in description.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> ---
>  .../bindings/display/mediatek/mediatek,dpi.yaml     | 13 ++++++++-----
>  1 file changed, 8 insertions(+), 5 deletions(-)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.example.dtb: dpi@1401d000: clocks: [[4294967295, 40], [4294967295, 41], [4294967295, 8]] is too short
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.example.dtb: dpi@1401d000: clock-names: ['pixel', 'engine', 'pll'] is too short
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.
CK Hu (胡俊光) June 14, 2022, 3:05 a.m. UTC | #2 
Hi, Bo-Chen:

On Mon, 2022-06-13 at 14:48 +0800, Bo-Chen Chen wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
> 
> DP_INTF is similar to DPI but does not have the exact same feature
> set
> or register layouts.
> 
> DP_INTF is the sink of the display pipeline that is connected to the
> DisplayPort controller and encoder unit. It takes the same clocks as
> DPI.
> 
> In this patch, we also do these string replacement:
> - s/mediatek/MediaTek/ in title.
> - s/Mediatek/MediaTek/ in description.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> ---
>  .../bindings/display/mediatek/mediatek,dpi.yaml     | 13 ++++++++---
> --
>  1 file changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git
> a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yam
> l
> b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yam
> l
> index 77ee1b923991..ca1b48e78581 100644
> ---
> a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yam
> l
> +++
> b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yam
> l
> @@ -4,16 +4,16 @@
>  $id: 
> http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: mediatek DPI Controller Device Tree Bindings
> +title: MediaTek DPI and DP_INTF Controller
>  
>  maintainers:
>    - CK Hu <ck.hu@mediatek.com>
>    - Jitao shi <jitao.shi@mediatek.com>
>  
>  description: |
> -  The Mediatek DPI function block is a sink of the display subsystem
> and
> -  provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a
> parallel
> -  output bus.
> +  The MediaTek DPI and DP_INTF function blocks are a sink of the
> display
> +  subsystem and provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422
> pixel data on a
> +  parallel output bus.
>  
>  properties:
>    compatible:
> @@ -24,6 +24,7 @@ properties:
>        - mediatek,mt8183-dpi
>        - mediatek,mt8186-dpi
>        - mediatek,mt8192-dpi
> +      - mediatek,mt8195-dp_intf
>  
>    reg:
>      maxItems: 1
> @@ -36,12 +37,14 @@ properties:
>        - description: Pixel Clock
>        - description: Engine Clock
>        - description: DPI PLL
> +      - description: Clock gate for PLL

Why DP_INTF has this additional clock? What is the new hardware block
(compared with DPI) need this clock? Why this is different than DPI?

Regards,
CK

>  
>    clock-names:
>      items:
>        - const: pixel
>        - const: engine
>        - const: pll
> +      - const: pll_gate
>  
>    pinctrl-0: true
>    pinctrl-1: true
> @@ -55,7 +58,7 @@ properties:
>      $ref: /schemas/graph.yaml#/properties/port
>      description:
>        Output port node. This port should be connected to the input
> port of an
> -      attached HDMI or LVDS encoder chip.
> +      attached HDMI, LVDS or DisplayPort encoder chip.
>  
>  required:
>    - compatible
Rob Herring (Arm) June 14, 2022, 8:24 p.m. UTC | #3 
On Mon, Jun 13, 2022 at 02:48:30PM +0800, Bo-Chen Chen wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
> 
> DP_INTF is similar to DPI but does not have the exact same feature set
> or register layouts.
> 
> DP_INTF is the sink of the display pipeline that is connected to the
> DisplayPort controller and encoder unit. It takes the same clocks as
> DPI.
> 
> In this patch, we also do these string replacement:
> - s/mediatek/MediaTek/ in title.
> - s/Mediatek/MediaTek/ in description.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> ---
>  .../bindings/display/mediatek/mediatek,dpi.yaml     | 13 ++++++++-----
>  1 file changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> index 77ee1b923991..ca1b48e78581 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> @@ -4,16 +4,16 @@
>  $id: http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: mediatek DPI Controller Device Tree Bindings
> +title: MediaTek DPI and DP_INTF Controller
>  
>  maintainers:
>    - CK Hu <ck.hu@mediatek.com>
>    - Jitao shi <jitao.shi@mediatek.com>
>  
>  description: |
> -  The Mediatek DPI function block is a sink of the display subsystem and
> -  provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a parallel
> -  output bus.
> +  The MediaTek DPI and DP_INTF function blocks are a sink of the display
> +  subsystem and provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a
> +  parallel output bus.
>  
>  properties:
>    compatible:
> @@ -24,6 +24,7 @@ properties:
>        - mediatek,mt8183-dpi
>        - mediatek,mt8186-dpi
>        - mediatek,mt8192-dpi
> +      - mediatek,mt8195-dp_intf
>  
>    reg:
>      maxItems: 1
> @@ -36,12 +37,14 @@ properties:
>        - description: Pixel Clock
>        - description: Engine Clock
>        - description: DPI PLL
> +      - description: Clock gate for PLL
>  
>    clock-names:
>      items:
>        - const: pixel
>        - const: engine
>        - const: pll
> +      - const: pll_gate

You just added a new required clock for everyone.

>  
>    pinctrl-0: true
>    pinctrl-1: true
> @@ -55,7 +58,7 @@ properties:
>      $ref: /schemas/graph.yaml#/properties/port
>      description:
>        Output port node. This port should be connected to the input port of an
> -      attached HDMI or LVDS encoder chip.
> +      attached HDMI, LVDS or DisplayPort encoder chip.
>  
>  required:
>    - compatible
> -- 
> 2.18.0
> 
>
Rex-BC Chen (陳柏辰) June 16, 2022, 7:55 a.m. UTC | #4 
On Tue, 2022-06-14 at 14:24 -0600, Rob Herring wrote:
> On Mon, Jun 13, 2022 at 02:48:30PM +0800, Bo-Chen Chen wrote:
> > From: Markus Schneider-Pargmann <msp@baylibre.com>
> > 
> > DP_INTF is similar to DPI but does not have the exact same feature
> > set
> > or register layouts.
> > 
> > DP_INTF is the sink of the display pipeline that is connected to
> > the
> > DisplayPort controller and encoder unit. It takes the same clocks
> > as
> > DPI.
> > 
> > In this patch, we also do these string replacement:
> > - s/mediatek/MediaTek/ in title.
> > - s/Mediatek/MediaTek/ in description.
> > 
> > Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> > Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> > ---
> >  .../bindings/display/mediatek/mediatek,dpi.yaml     | 13 ++++++++-
> > ----
> >  1 file changed, 8 insertions(+), 5 deletions(-)
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > aml
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > aml
> > index 77ee1b923991..ca1b48e78581 100644
> > ---
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > aml
> > +++
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > aml
> > @@ -4,16 +4,16 @@
> >  $id: 
> > https://urldefense.com/v3/__http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml*__;Iw!!CTRNKA9wMg0ARbw!0wzvKisC8j2vSMbYtNhgV1niXflyQgVHmgSPCVo94UQV-GiFqhMtdoowjpgIYMXH8wDn$
> >  
> >  $schema: 
> > https://urldefense.com/v3/__http://devicetree.org/meta-schemas/core.yaml*__;Iw!!CTRNKA9wMg0ARbw!0wzvKisC8j2vSMbYtNhgV1niXflyQgVHmgSPCVo94UQV-GiFqhMtdoowjpgIYEfMUrSk$
> >  
> >  
> > -title: mediatek DPI Controller Device Tree Bindings
> > +title: MediaTek DPI and DP_INTF Controller
> >  
> >  maintainers:
> >    - CK Hu <ck.hu@mediatek.com>
> >    - Jitao shi <jitao.shi@mediatek.com>
> >  
> >  description: |
> > -  The Mediatek DPI function block is a sink of the display
> > subsystem and
> > -  provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a
> > parallel
> > -  output bus.
> > +  The MediaTek DPI and DP_INTF function blocks are a sink of the
> > display
> > +  subsystem and provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422
> > pixel data on a
> > +  parallel output bus.
> >  
> >  properties:
> >    compatible:
> > @@ -24,6 +24,7 @@ properties:
> >        - mediatek,mt8183-dpi
> >        - mediatek,mt8186-dpi
> >        - mediatek,mt8192-dpi
> > +      - mediatek,mt8195-dp_intf
> >  
> >    reg:
> >      maxItems: 1
> > @@ -36,12 +37,14 @@ properties:
> >        - description: Pixel Clock
> >        - description: Engine Clock
> >        - description: DPI PLL
> > +      - description: Clock gate for PLL
> >  
> >    clock-names:
> >      items:
> >        - const: pixel
> >        - const: engine
> >        - const: pll
> > +      - const: pll_gate
> 
> You just added a new required clock for everyone.
> 

Hello Rob,

We can remove this clock and using clock framework to enable this pll
gate, so I will remove this in next version.

BRs,
Bo-Chen

> >  
> >    pinctrl-0: true
> >    pinctrl-1: true
> > @@ -55,7 +58,7 @@ properties:
> >      $ref: /schemas/graph.yaml#/properties/port
> >      description:
> >        Output port node. This port should be connected to the input
> > port of an
> > -      attached HDMI or LVDS encoder chip.
> > +      attached HDMI, LVDS or DisplayPort encoder chip.
> >  
> >  required:
> >    - compatible
> > -- 
> > 2.18.0
> > 
> >
Rex-BC Chen (陳柏辰) June 16, 2022, 7:58 a.m. UTC | #5 
On Tue, 2022-06-14 at 11:05 +0800, CK Hu wrote:
> Hi, Bo-Chen:
> 
> On Mon, 2022-06-13 at 14:48 +0800, Bo-Chen Chen wrote:
> > From: Markus Schneider-Pargmann <msp@baylibre.com>
> > 
> > DP_INTF is similar to DPI but does not have the exact same feature
> > set
> > or register layouts.
> > 
> > DP_INTF is the sink of the display pipeline that is connected to
> > the
> > DisplayPort controller and encoder unit. It takes the same clocks
> > as
> > DPI.
> > 
> > In this patch, we also do these string replacement:
> > - s/mediatek/MediaTek/ in title.
> > - s/Mediatek/MediaTek/ in description.
> > 
> > Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> > Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> > ---
> >  .../bindings/display/mediatek/mediatek,dpi.yaml     | 13 ++++++++-
> > --
> > --
> >  1 file changed, 8 insertions(+), 5 deletions(-)
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > am
> > l
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > am
> > l
> > index 77ee1b923991..ca1b48e78581 100644
> > ---
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > am
> > l
> > +++
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.y
> > am
> > l
> > @@ -4,16 +4,16 @@
> >  $id: 
> > http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml#
> >  $schema: http://devicetree.org/meta-schemas/core.yaml#
> >  
> > -title: mediatek DPI Controller Device Tree Bindings
> > +title: MediaTek DPI and DP_INTF Controller
> >  
> >  maintainers:
> >    - CK Hu <ck.hu@mediatek.com>
> >    - Jitao shi <jitao.shi@mediatek.com>
> >  
> >  description: |
> > -  The Mediatek DPI function block is a sink of the display
> > subsystem
> > and
> > -  provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a
> > parallel
> > -  output bus.
> > +  The MediaTek DPI and DP_INTF function blocks are a sink of the
> > display
> > +  subsystem and provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422
> > pixel data on a
> > +  parallel output bus.
> >  
> >  properties:
> >    compatible:
> > @@ -24,6 +24,7 @@ properties:
> >        - mediatek,mt8183-dpi
> >        - mediatek,mt8186-dpi
> >        - mediatek,mt8192-dpi
> > +      - mediatek,mt8195-dp_intf
> >  
> >    reg:
> >      maxItems: 1
> > @@ -36,12 +37,14 @@ properties:
> >        - description: Pixel Clock
> >        - description: Engine Clock
> >        - description: DPI PLL
> > +      - description: Clock gate for PLL
> 
> Why DP_INTF has this additional clock? What is the new hardware block
> (compared with DPI) need this clock? Why this is different than DPI?
> 
> Regards,
> CK
> 

Hello CK,

as previous reply, I will remove this clock.

BRs,
Bo-Chen

> >  
> >    clock-names:
> >      items:
> >        - const: pixel
> >        - const: engine
> >        - const: pll
> > +      - const: pll_gate
> >  
> >    pinctrl-0: true
> >    pinctrl-1: true
> > @@ -55,7 +58,7 @@ properties:
> >      $ref: /schemas/graph.yaml#/properties/port
> >      description:
> >        Output port node. This port should be connected to the input
> > port of an
> > -      attached HDMI or LVDS encoder chip.
> > +      attached HDMI, LVDS or DisplayPort encoder chip.
> >  
> >  required:
> >    - compatible
> 
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
index 77ee1b923991..ca1b48e78581 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
@@ -4,16 +4,16 @@ 
 $id: http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: mediatek DPI Controller Device Tree Bindings
+title: MediaTek DPI and DP_INTF Controller
 
 maintainers:
   - CK Hu <ck.hu@mediatek.com>
   - Jitao shi <jitao.shi@mediatek.com>
 
 description: |
-  The Mediatek DPI function block is a sink of the display subsystem and
-  provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a parallel
-  output bus.
+  The MediaTek DPI and DP_INTF function blocks are a sink of the display
+  subsystem and provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a
+  parallel output bus.
 
 properties:
   compatible:
@@ -24,6 +24,7 @@  properties:
       - mediatek,mt8183-dpi
       - mediatek,mt8186-dpi
       - mediatek,mt8192-dpi
+      - mediatek,mt8195-dp_intf
 
   reg:
     maxItems: 1
@@ -36,12 +37,14 @@  properties:
       - description: Pixel Clock
       - description: Engine Clock
       - description: DPI PLL
+      - description: Clock gate for PLL
 
   clock-names:
     items:
       - const: pixel
       - const: engine
       - const: pll
+      - const: pll_gate
 
   pinctrl-0: true
   pinctrl-1: true
@@ -55,7 +58,7 @@  properties:
     $ref: /schemas/graph.yaml#/properties/port
     description:
       Output port node. This port should be connected to the input port of an
-      attached HDMI or LVDS encoder chip.
+      attached HDMI, LVDS or DisplayPort encoder chip.
 
 required:
   - compatible