Thread (21 messages) 21 messages, 6 authors, 2026-02-17

Re: [PATCH v6 5/5] arm64: dts: qcom: ipq5424: add support to get watchdog bootstatus from IMEM

From: Kathiravan Thirumoorthy <hidden>
Date: 2026-02-03 04:35:34
Also in: linux-arm-msm, linux-watchdog, lkml

On 2/2/2026 7:14 PM, Mukesh Ojha wrote:
On Sat, Jan 31, 2026 at 10:18:29AM +0200, Dmitry Baryshkov wrote:
quoted
On Fri, Jan 30, 2026 at 04:14:34PM +0530, Kathiravan Thirumoorthy wrote:
quoted
Add the "sram" property to the watchdog device node to enable
retrieval of the system restart reason from IMEM, populated by XBL.
Parse this information in the watchdog driver and update the bootstatus
sysFS if the restart was triggered by a watchdog timeout.

Signed-off-by: Kathiravan Thirumoorthy <redacted>
---
Changes in v6:
	- Update the 'sram' property to point to the SRAM region
Changes in v5:
	- Rename the property 'qcom,imem' to 'sram'
Changes in v4:
	- New patch
---
  arch/arm64/boot/dts/qcom/ipq5424.dtsi | 5 +++++
  1 file changed, 5 insertions(+)
Reviewed-by: Dmitry Baryshkov <redacted>
I have a few more cookies (stored in a fixed IMEM location supported
downstream) that I want to add, and they are available on all Qualcomm
mobile SoCs. Should it be added under SMEM now?

Mukesh, you mean SMEM or SRAM? Do we have the consumers in upstream for 
all those cookies?

quoted
-- 
With best wishes
Dmitry
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