dt bindings: mmc: arasan,sdci: Add gate property for Xilinx platforms

Commit Message

Sai Krishna Potthuri Nov. 10, 2023, 8:11 a.m. UTC

From: Swati Agarwal <[e-mail]>

Add gate property in example node for Xilinx platforms which will be used
to ungate the DLL clock. DLL clock is required for higher frequencies like
50MHz, 100MHz and 200MHz.
DLL clock is automatically selected by the SD controller when the SD
output clock frequency is more than 25 MHz.

Signed-off-by: Swati Agarwal <[e-mail]>
Co-developed-by: Sai Krishna Potthuri <[e-mail]>
Signed-off-by: Sai Krishna Potthuri <[e-mail]>
---
Note: This patch only updates the example nodes with the gate property for
Xilinx platforms.

 Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Krzysztof Kozlowski Nov. 10, 2023, 12:22 p.m. UTC | #1

On 10/11/2023 09:11, Sai Krishna Potthuri wrote:
> From: Swati Agarwal <[e-mail]>
> 

Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching.
It's: dt-bindings

> Add gate property in example node for Xilinx platforms which will be used
> to ungate the DLL clock. DLL clock is required for higher frequencies like
> 50MHz, 100MHz and 200MHz.
> DLL clock is automatically selected by the SD controller when the SD
> output clock frequency is more than 25 MHz.
> 
> Signed-off-by: Swati Agarwal <[e-mail]>
> Co-developed-by: Sai Krishna Potthuri <[e-mail]>
> Signed-off-by: Sai Krishna Potthuri <[e-mail]>
> ---
> Note: This patch only updates the example nodes with the gate property for
> Xilinx platforms.
> 

Acked-by: Krzysztof Kozlowski <[e-mail]>

Best regards,
Krzysztof

Patch

diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml b/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
index 3e99801f77d2..9075add020bf 100644
--- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
@@ -226,8 +226,8 @@  examples:
           interrupt-parent = <&gic>;
           interrupts = <0 48 4>;
           reg = <0xff160000 0x1000>;
-          clocks = <&clk200>, <&clk200>;
-          clock-names = "clk_xin", "clk_ahb";
+          clocks = <&clk200>, <&clk200>, <&clk1200>;
+          clock-names = "clk_xin", "clk_ahb", "gate";
           clock-output-names = "clk_out_sd0", "clk_in_sd0";
           #clock-cells = <1>;
           clk-phase-sd-hs = <63>, <72>;
@@ -239,8 +239,8 @@  examples:
           interrupt-parent = <&gic>;
           interrupts = <0 126 4>;
           reg = <0xf1040000 0x10000>;
-          clocks = <&clk200>, <&clk200>;
-          clock-names = "clk_xin", "clk_ahb";
+          clocks = <&clk200>, <&clk200>, <&clk1200>;
+          clock-names = "clk_xin", "clk_ahb", "gate";
           clock-output-names = "clk_out_sd0", "clk_in_sd0";
           #clock-cells = <1>;
           clk-phase-sd-hs = <132>, <60>;