[v6,4/4] dt-bindings: display: imx: add bindings for DCSS
diff mbox series

Message ID 20200717144132.2206-5-laurentiu.palcu@oss.nxp.com
State New
Headers show
Series
  • Add support for iMX8MQ Display Controller Subsystem
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Commit Message

Laurentiu Palcu July 17, 2020, 2:41 p.m. UTC
From: Laurentiu Palcu <laurentiu.palcu@nxp.com>

Add bindings for iMX8MQ Display Controller Subsystem.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
---
 .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 104 ++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml

Comments

Rob Herring July 20, 2020, 4:49 p.m. UTC | #1
On Fri, 17 Jul 2020 17:41:29 +0300, Laurentiu Palcu wrote:
> From: Laurentiu Palcu <laurentiu.palcu@nxp.com>
> 
> Add bindings for iMX8MQ Display Controller Subsystem.
> 
> Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
> ---
>  .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 104 ++++++++++++++++++
>  1 file changed, 104 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
> 


Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.
Laurentiu Palcu July 20, 2020, 4:55 p.m. UTC | #2
Hi Rob,

On Mon, Jul 20, 2020 at 10:49:27AM -0600, Rob Herring wrote:
> On Fri, 17 Jul 2020 17:41:29 +0300, Laurentiu Palcu wrote:
> > From: Laurentiu Palcu <laurentiu.palcu@nxp.com>
> > 
> > Add bindings for iMX8MQ Display Controller Subsystem.
> > 
> > Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
> > ---
> >  .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 104 ++++++++++++++++++
> >  1 file changed, 104 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
> > 
> 
> 
> Please add Acked-by/Reviewed-by tags when posting new versions. However,
> there's no need to repost patches *only* to add the tags. The upstream
> maintainer will do that for acks received on the version they apply.
> 
> If a tag was not added on purpose, please state why and what changed.

Well, I kind of did exactly that... in the cover letter. I stated
clearly why this patch needs another look... :/

Thanks,
laurentiu
Rob Herring July 20, 2020, 7:15 p.m. UTC | #3
On Mon, Jul 20, 2020 at 10:55 AM Laurentiu Palcu
<laurentiu.palcu@oss.nxp.com> wrote:
>
> Hi Rob,
>
> On Mon, Jul 20, 2020 at 10:49:27AM -0600, Rob Herring wrote:
> > On Fri, 17 Jul 2020 17:41:29 +0300, Laurentiu Palcu wrote:
> > > From: Laurentiu Palcu <laurentiu.palcu@nxp.com>
> > >
> > > Add bindings for iMX8MQ Display Controller Subsystem.
> > >
> > > Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
> > > ---
> > >  .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 104 ++++++++++++++++++
> > >  1 file changed, 104 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
> > >
> >
> >
> > Please add Acked-by/Reviewed-by tags when posting new versions. However,
> > there's no need to repost patches *only* to add the tags. The upstream
> > maintainer will do that for acks received on the version they apply.
> >
> > If a tag was not added on purpose, please state why and what changed.
>
> Well, I kind of did exactly that... in the cover letter. I stated
> clearly why this patch needs another look... :/

Put information closest to where it applies which is this patch. I
don't read cover letters typically.

R-by still stands.

Rob

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml b/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
new file mode 100644
index 000000000000..68e4635e4874
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
@@ -0,0 +1,104 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 NXP
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/display/imx/nxp,imx8mq-dcss.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: iMX8MQ Display Controller Subsystem (DCSS)
+
+maintainers:
+  - Laurentiu Palcu <laurentiu.palcu@nxp.com>
+
+description:
+
+  The DCSS (display controller sub system) is used to source up to three
+  display buffers, compose them, and drive a display using HDMI 2.0a(with HDCP
+  2.2) or MIPI-DSI. The DCSS is intended to support up to 4kp60 displays. HDR10
+  image processing capabilities are included to provide a solution capable of
+  driving next generation high dynamic range displays.
+
+properties:
+  compatible:
+    const: nxp,imx8mq-dcss
+
+  reg:
+    items:
+      - description: DCSS base address and size, up to IRQ steer start
+      - description: DCSS BLKCTL base address and size
+
+  interrupts:
+    items:
+      - description: Context loader completion and error interrupt
+      - description: DTG interrupt used to signal context loader trigger time
+      - description: DTG interrupt for Vblank
+
+  interrupt-names:
+    items:
+      - const: ctxld
+      - const: ctxld_kick
+      - const: vblank
+
+  clocks:
+    items:
+      - description: Display APB clock for all peripheral PIO access interfaces
+      - description: Display AXI clock needed by DPR, Scaler, RTRAM_CTRL
+      - description: RTRAM clock
+      - description: Pixel clock, can be driven either by HDMI phy clock or MIPI
+      - description: DTRC clock, needed by video decompressor
+
+  clock-names:
+    items:
+      - const: apb
+      - const: axi
+      - const: rtrm
+      - const: pix
+      - const: dtrc
+
+  assigned-clocks:
+    items:
+      - description: Phandle and clock specifier of IMX8MQ_CLK_DISP_AXI_ROOT
+      - description: Phandle and clock specifier of IMX8MQ_CLK_DISP_RTRM
+      - description: Phandle and clock specifier of either IMX8MQ_VIDEO2_PLL1_REF_SEL or
+                     IMX8MQ_VIDEO_PLL1_REF_SEL
+
+  assigned-clock-parents:
+    items:
+      - description: Phandle and clock specifier of IMX8MQ_SYS1_PLL_800M
+      - description: Phandle and clock specifier of IMX8MQ_SYS1_PLL_800M
+      - description: Phandle and clock specifier of IMX8MQ_CLK_27M
+
+  assigned-clock-rates:
+    items:
+      - description: Must be 800 MHz
+      - description: Must be 400 MHz
+
+  port:
+    type: object
+    description:
+      A port node pointing to the input port of a HDMI/DP or MIPI display bridge.
+
+additionalProperties: false
+
+examples:
+  - |
+    dcss: display-controller@32e00000 {
+        compatible = "nxp,imx8mq-dcss";
+        reg = <0x32e00000 0x2d000>, <0x32e2f000 0x1000>;
+        interrupts = <6>, <8>, <9>;
+        interrupt-names = "ctxld", "ctxld_kick", "vblank";
+        interrupt-parent = <&irqsteer>;
+        clocks = <&clk 248>, <&clk 247>, <&clk 249>,
+                 <&clk 254>,<&clk 122>;
+        clock-names = "apb", "axi", "rtrm", "pix", "dtrc";
+        assigned-clocks = <&clk 107>, <&clk 109>, <&clk 266>;
+        assigned-clock-parents = <&clk 78>, <&clk 78>, <&clk 3>;
+        assigned-clock-rates = <800000000>,
+                               <400000000>;
+        port {
+            dcss_out: endpoint {
+                remote-endpoint = <&hdmi_in>;
+            };
+        };
+    };
+