Re: [RFC 3/3] arm64: dts: qcom: sa8775p-ride: Enable support for firmware managed resources

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On 3/6/2024 12:17 AM, Bjorn Andersson wrote:
On Tue, Mar 05, 2024 at 11:33:54PM +0530, Sriram Dash wrote:
On 3/5/2024 10:38 PM, Krzysztof Kozlowski wrote:
On 05/03/2024 17:57, Sriram Dash wrote:
Establish the channel and domain mapping for the power domains to connect
with firmware, enabling the firmware to handle the assigned resources.
Since these delegated resources will remain invisible to the operating
system, ensure that any references to them are removed.

Signed-off-by: Sriram Dash <quic_sriramd@xxxxxxxxxxx>
---
   arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 96 +++++++++++++++++++++++++------
   1 file changed, 77 insertions(+), 19 deletions(-)

Do not mix DTS patches with submissions to netdev or USB.

Please put it inside your internal guides, so you will not be repeating
this over and over.


Sure. Will take care. Thanks.


diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
index 26ad05b..b6c9cac 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
@@ -764,8 +764,18 @@
   };
   &usb_0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&usb0_en_state>;
+	/delete-property/ clocks;
+	/delete-property/ clock-names;
+	/delete-property/ assigned-clocks;
+	/delete-property/ assigned-clock-rates;
+	/delete-property/ required-opps;
+	/delete-property/ resets;
+	/delete-property/ interconnects;
+	/delete-property/ interconnect-names;
+
+	power-domains = <TODO>, <TODO>;

This wasn't even tested.


This is tested with the specific power domains in place
of <TODO>. SCMI interface is used for the power domains.


So you tested this on v6.8-rcN, but you're not able to upstream this
dependency? The code wouldn't compile if this patch is applied, so what
do you expect that I should do with it?

Develop on upstream, test on upstream, send code that improves upstream!


Thanks Bjorn.
Sure. I will wait for the scmi based dt support
for SA8775 and then update the patches on top.

Thank you,
Bjorn

Best regards,
Krzysztof





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