[Patch v5 3/4] dt-bindings: memory: Update reg maxitems for tegra186

Ashish Mhetre
2022-03-16T09:26:14Z

From tegra186 onwards, memory controller support multiple channels.
Reg items are updated with address and size of these channels.
Tegra186 has overall 5 memory controller channels. Tegra194 and tegra234
have overall 17 memory controller channels each.
There is 1 reg item for memory controller stream-id registers.
So update the reg maxItems to 18 in tegra186 devicetree documentation.

Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
---
.../nvidia,tegra186-mc.yaml | 20 +++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml
index 13c4c82fd0d3..3c4e231dc1de 100644
--- a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml
@@ -34,8 +34,8 @@ properties:
- nvidia,tegra234-mc

reg:
- minItems: 1
- maxItems: 3
+ minItems: 6
+ maxItems: 18

interrupts:
items:
@@ -142,7 +142,8 @@ allOf:
then:
properties:
reg:
- maxItems: 1
+ maxItems: 6
+ description: 5 memory controller channels and 1 for stream-id registers

- if:
properties:
@@ -151,7 +152,8 @@ allOf:
then:
properties:
reg:
- minItems: 3
+ minItems: 18
+ description: 17 memory controller channels and 1 for stream-id registers

- if:
properties:
@@ -160,7 +162,8 @@ allOf:
then:
properties:
reg:
- minItems: 3
+ minItems: 18
+ description: 17 memory controller channels and 1 for stream-id registers

additionalProperties: false

@@ -198,7 +201,12 @@ examples:

external-memory-controller@2c60000 {
compatible = "nvidia,tegra186-emc";
- reg = <0x0 0x02c60000 0x0 0x50000>;
+ reg = <0x0 0x02c00000 0x0 0x10000>, /* MC-SID */
+ <0x0 0x02c10000 0x0 0x10000>, /* Broadcast channel */
+ <0x0 0x02c20000 0x0 0x10000>, /* MC0 */
+ <0x0 0x02c30000 0x0 0x10000>, /* MC1 */
+ <0x0 0x02c40000 0x0 0x10000>, /* MC2 */
+ <0x0 0x02c50000 0x0 0x10000>; /* MC3 */
interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&bpmp TEGRA186_CLK_EMC>;
clock-names = "emc";
--
2.17.1