Re: [PATCH v2 4/4] arm64: dts: qcom: Add PSCI SYSTEM_RESET2 types for qcm6490-idp

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On 4/15/24 02:32, Elliot Berman wrote:
On Mon, Apr 15, 2024 at 02:13:29AM +0300, Dmitry Baryshkov wrote:
On Sun, 14 Apr 2024 at 22:32, Elliot Berman <quic_eberman@xxxxxxxxxxx> wrote:

Add nodes for the vendor-defined system resets. "bootloader" will cause
device to reboot and stop in the bootloader's fastboot mode. "edl" will
cause device to reboot into "emergency download mode", which permits
loading images via the Firehose protocol.

Co-developed-by: Shivendra Pratap <quic_spratap@xxxxxxxxxxx>
Signed-off-by: Shivendra Pratap <quic_spratap@xxxxxxxxxxx>
Signed-off-by: Elliot Berman <quic_eberman@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/qcm6490-idp.dts | 5 +++++
  1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
index e4bfad50a669..a966f6c8dd7c 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
@@ -126,6 +126,11 @@ debug_vm_mem: debug-vm@d0600000 {
                 };
         };

+       psci {

Please use a label instead. Otherwise it looks as if you are adding
new device node.


Right. Fixed for the next revision.

Are you guys planning to make this sorta ABI-like?

If so (which would be greatly appreciated by the way..), perhaps you
could stick these magic values in dt-bindings and give them cool names

FWIW DEN0022 (my second-favorite book) suggests these values are almost
totally vendor-defined, so if I were Qualcomm, I'd take the creative
liberty to come up with a set of numbers and never ever ever change
them

Konrad




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