On 24/07/2024 20:13, Krzysztof Kozlowski wrote:

On 03/07/2024 14:23, Mao Jinlong wrote:

...

Current name of coresight component's folder consists of prefix of the device and the id in the device list. When run 'ls' command, we can get the register address of the device. Take CTI for example, if we want to set the config for modem CTI, but we can't know which CTI is modem CTI from all current information.

cti_sys0 -> ../../../devices/platform/soc@0/138f0000.cti/cti_sys0 cti_sys1 -> ../../../devices/platform/soc@0/13900000.cti/cti_sys1

Add device-name in device tree which can provide a better description of the coresight device. It can provide the info like the system or HW it belongs to.

Signed-off-by: Mao Jinlong quic_jinlmao@quicinc.com

.../devicetree/bindings/arm/arm,coresight-cti.yaml | 6 ++++++ .../devicetree/bindings/arm/arm,coresight-dummy-source.yaml | 6 ++++++ .../devicetree/bindings/arm/arm,coresight-stm.yaml | 6 ++++++ .../devicetree/bindings/arm/qcom,coresight-tpdm.yaml | 6 ++++++ 4 files changed, 24 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml index 2d5545a2b49c..6a73eaa66a42 100644 --- a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml +++ b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml @@ -98,6 +98,12 @@ properties: power-domains: maxItems: 1

• arm,cs-dev-name:
• $ref: /schemas/types.yaml#/definitions/string
• description:

•  Define the name which can describe what kind of HW or system the
  

•  coresight device belongs to.
  

Don't we use already label for such cases? Power domains, input, leds, panels, IIO, hwmon and more.

We do and if we can get hold of them, that would be ideal. but do we get them in the binary DT blob ? At least I couldn't see them on my Juno dtb.

Cheers Suzuki

Best regards, Krzysztof