Commit ca23ecfdbd44 ("remoteproc/mediatek: support L1TCM") added support
for the l1tcm memory region on the MT8192 SCP, adding a new da_to_va
callback that handles l1tcm while keeping the old one for
back-compatibility with MT8183. However, since the mt8192 compatible was
missing from the dt-binding, the accompanying dt-binding commit
503c64cc42f1 ("dt-bindings: remoteproc: mediatek: add L1TCM memory region")
mistakenly added this reg as if it were for mt8183. And later
it became common to all platforms as their compatibles were added.
Fix the dt-binding so that the l1tcm reg can be present only on the
supported platforms: mt8192 and mt8195.
Fixes: 503c64cc42f1 ("dt-bindings: remoteproc: mediatek: add L1TCM memory region")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
---
Changes in v5:
- Made l1tcm optional for mt8192/mt8195
- Greatly simplified the constraints override in the if:then:
- Updated commit message
Changes in v4:
- Reworked presence of l1tcm reg to be if:then: based and present only
on mt8192/mt8195
- Rewrote commit message
- Added Fixes tag
Changes in v3:
- Made the cfg reg required again. After looking again into the mtk-scp
driver, only l1tcm is optional.
- Added mention that a dtbs_check warning gets fixed by patch in commit
message.
.../bindings/remoteproc/mtk,scp.yaml | 44 +++++++++++++------
1 file changed, 30 insertions(+), 14 deletions(-)
diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index abc11ac92818..832064d635b3 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -23,11 +23,13 @@ properties:
reg:
description:
- Should contain the address ranges for memory regions SRAM, CFG, and
- L1TCM.
+ Should contain the address ranges for memory regions SRAM, CFG, and,
+ on some platforms, L1TCM.
+ minItems: 2
maxItems: 3
reg-names:
+ minItems: 2
items:
- const: sram
- const: cfg
@@ -57,16 +59,30 @@ required:
- reg
- reg-names
-if:
- properties:
- compatible:
- enum:
- - mediatek,mt8183-scp
- - mediatek,mt8192-scp
-then:
- required:
- - clocks
- - clock-names
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt8183-scp
+ - mediatek,mt8192-scp
+ then:
+ required:
+ - clocks
+ - clock-names
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt8183-scp
+ - mediatek,mt8186-scp
+ then:
+ properties:
+ reg:
+ maxItems: 2
+ reg-names:
+ maxItems: 2
additionalProperties:
type: object
@@ -86,10 +102,10 @@ additionalProperties:
examples:
- |
- #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/clock/mt8192-clk.h>
scp@10500000 {
- compatible = "mediatek,mt8183-scp";
+ compatible = "mediatek,mt8192-scp";
reg = <0x10500000 0x80000>,
<0x10700000 0x8000>,
<0x10720000 0xe0000>;
--
2.36.1
