Re: [PATCH v2 3/7] dt-bindings: remoteproc: qcom: Fixup regulator dependencies

From: Sibi Sankar
Date: Tue Dec 18 2018 - 01:50:47 EST


Hi Doug,
Thanks for the review :)

On 2018-12-18 05:30, Doug Anderson wrote:
Hi,

On Mon, Dec 17, 2018 at 2:08 AM Sibi Sankar <sibis@xxxxxxxxxxxxxx> wrote:

Fixup regulator supply dependencies for Q6V5 MSS on MSM996 SoCs.

Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index 780adc043b37..98894e6ad456 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -76,7 +76,9 @@ on the Qualcomm Hexagon core.
Usage: required
Value type: <phandle>
Definition: reference to the regulators to be held on behalf of the
- booting of the Hexagon core
+ booting of the Hexagon core on MSM8916 SoCs
+ reference to the pll-supply regulator to be held on behalf
+ of the booting of the Hexagon core on MSM8996 SoCs

The prose gets in the way and doesn't add anything. I also don't
understand what you're saying for msm8996. You're saying that
"pll-supply" is required there but none of the others? That doesn't
seem to be true in the code I have in front of me, but maybe I'm
missing some patch. For me, I'd write:


AFAIK, only the exceptions are captured. But your
suggestion seems more simple/complete. Perhaps I'll
replace SoCs instead of compatibles? Anyway
I'll wait for Bjorn/Rob's preference.

For the compatible strings below the following supplies are required:
"qcom,q6v5-pil"
"qcom,msm8916-mss-pil",
"qcom,msm8974-mss-pil"
- cx-supply:
- mss-supply:
- mx-supply:
- pll-supply:
Usage: required
Value type: <phandle>
Definition: reference to the regulators to be held on behalf of the
booting of the Hexagon core


...and if msm8996 actually needs "pll-supply", you could add in...

For the compatible strings below the following supplies are required:
"qcom,msm8996-mss-pil"
- pll-supply:
Usage: required
Value type: <phandle>
Definition: reference to the regulators to be held on behalf of the
booting of the Hexagon core

--
-- Sibi Sankar --
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.