Re: [PATCH v2 1/6] dt-bindings: reset: Add PDC Global binding for SDM845 SoCs

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Hi Matthias,
Thanks for the review

On 2018-08-28 06:08, Matthias Kaehlcke wrote:
Hi Sibi,

On Fri, Aug 24, 2018 at 06:48:55PM +0530, Sibi Sankar wrote:
Add PDC Global(Power Domain Controller) binding for SDM845 SoCs.

nit: missing blank before the opening parenthesis.


Will fix it


Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
---
.../bindings/reset/qcom,pdc-global.txt | 52 +++++++++++++++++++
 include/dt-bindings/reset/qcom,sdm845-pdc.h   | 20 +++++++
 2 files changed, 72 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/qcom,pdc-global.txt
 create mode 100644 include/dt-bindings/reset/qcom,sdm845-pdc.h

diff --git a/Documentation/devicetree/bindings/reset/qcom,pdc-global.txt b/Documentation/devicetree/bindings/reset/qcom,pdc-global.txt
new file mode 100644
index 000000000000..69f9edca9503
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/qcom,pdc-global.txt
@@ -0,0 +1,52 @@
+PDC Global
+======================================
+
+This binding describes a reset-controller found on PDC-Global(Power Domain
+Controller) block for Qualcomm Technologies Inc SDM845 SoCs.

Are there other PDC reset controllers that aren't 'global'? Otherwise
I'd suggest to use 'pdc-reset' instead of 'pdc-global', which is more
specific and in line with the name of the driver added by this series.
Or something like 'pdc-reset-global/main' if there are other
controllers?


These are the only reset lines found in the pdc-global register space. But as explained by Bjorn, wouldn't it be better to leave it as such since pdc-global best describes the hardware without being limited by the current functionality
it is being used for?

+Required properties:
+- compatible:
+	Usage: required
+	Value type: <string>
+	Definition: must be:
+		    "qcom,sdm845-pdc-global"
+
+- reg:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: must specify the base address and size of the register
+	            space.
+
+- #reset-cells:
+	Usage: required
+	Value type: <uint>
+	Definition: must be 1; cell entry represents the reset index.
+
+Example:
+
+pdc_reset: reset-controller@b2e0000 {
+	compatible = "qcom,sdm845-pdc-global";
+	reg = <0xb2e0000 0x20000>;
+	#reset-cells = <1>;
+};
+
+PDC reset clients
+======================================
+
+Device nodes that need access to reset lines should
+specify them as a reset phandle in their corresponding node as
+specified in reset.txt.
+
+For list of all valid reset indicies see

s/indicies/indices/ (or s/indicies/lines/ ?)

Cheers

Matthias



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