lkml.org 
[lkml]   [2022]   [May]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v6, 1/7] dt-bindings: media: mediatek: vcodec: Adds decoder dt-bindings for lat soc
Date
Adds decoder dt-bindings for compatible "mediatek,mtk-vcodec-lat-soc".

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
---
.../media/mediatek,vcodec-subdev-decoder.yaml | 51 +++++++++++++------
1 file changed, 35 insertions(+), 16 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
index 6415c9f29130..6854e7f2ce9f 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
@@ -17,20 +17,20 @@ description: |

About the Decoder Hardware Block Diagram, please check below:

- +---------------------------------+------------------------------------+
- | | |
- | input -> lat HW -> lat buffer --|--> lat buffer -> core HW -> output |
- | || | || |
- +------------||-------------------+---------------------||-------------+
- lat workqueue | core workqueue <parent>
- -------------||-----------------------------------------||------------------
- || || <child>
- \/ <----------------HW index-------------->\/
- +------------------------------------------------------+
- | enable/disable |
- | clk power irq iommu |
- | (lat/lat soc/core0/core1) |
- +------------------------------------------------------+
+ +------------------------------------------------+-------------------------------------+
+ | | |
+ | input -> lat soc HW -> lat HW -> lat buffer --|--> lat buffer -> core HW -> output |
+ | || || | || |
+ +------------||-------------||-------------------+---------------------||--------------+
+ || lat || | core workqueue <parent>
+ -------------||-------------||-------------------|---------------------||---------------
+ ||<------------||----------------HW index---------------->|| <child>
+ \/ \/ \/
+ +-------------------------------------------------------------+
+ | enable/disable |
+ | clk power irq iommu |
+ | (lat/lat soc/core0/core1) |
+ +-------------------------------------------------------------+

As above, there are parent and child devices, child mean each hardware. The child device
controls the information of each hardware independent which include clk/power/irq.
@@ -45,6 +45,13 @@ description: |
For the smi common may not the same for each hardware, can't combine all hardware in one node,
or leading to iommu fault when access dram data.

+ Lat soc is a hardware which is related with some larb(local arbiter) ports. For mt8195
+ platform, there are some ports like RDMA, UFO in lat soc larb, need to enable its power and
+ clock when lat start to work, don't have interrupt.
+
+ mt8195: lat soc HW + lat HW + core HW
+ mt8192: lat HW + core HW
+
properties:
compatible:
enum:
@@ -88,7 +95,9 @@ patternProperties:

properties:
compatible:
- const: mediatek,mtk-vcodec-lat
+ enum:
+ - mediatek,mtk-vcodec-lat
+ - mediatek,mtk-vcodec-lat-soc

reg:
maxItems: 1
@@ -126,7 +135,6 @@ patternProperties:
required:
- compatible
- reg
- - interrupts
- iommus
- clocks
- clock-names
@@ -197,6 +205,17 @@ required:
- dma-ranges
- ranges

+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mtk-vcodec-lat
+
+then:
+ required:
+ - interrupts
+
additionalProperties: false

examples:
--
2.18.0
\
 
 \ /
  Last update: 2022-05-13 11:26    [W:4.796 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site