Hi!
10/06/2024 19.08, Conor Dooley wrote:
On Mon, Jun 10, 2024 at 11:39:49AM +0300, Viacheslav Bocharov wrote:
Add secure-monitor property to schema for meson-gx-socinfo-sm driver.
"bindings are for hardware, not drivers". Why purpose does the "secure
monitor" serve that the secure firmware needs a reference to it?
This driver is an extension to the meson-gx-socinfo driver: it
supplements information obtained from the register with information from
the SM_GET_CHIP_ID secure monitor call. Due to the specifics of the
module loading order, we cannot do away with meson-gx-socinfo, as it is
used for platform identification in some drivers. Therefore, the
extended information is formatted as a separate driver, which is loaded
after the secure-monitor driver.
The ability to obtain additional information depends on the support for
the call in the secure-monitor, which can be described by an additional
link from the amlogic,meson-gx-ao-secure node to the secure-monitor
node, similar to how it is done for amlogic,meson-gxbb-efuse.
Thanks,
Conor.
Signed-off-by: Viacheslav Bocharov <adeep@xxxxxxxxx>
---
.../bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
index 7dff32f373cb..1128a794ec89 100644
--- a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
@@ -32,6 +32,10 @@ properties:
reg:
maxItems: 1
+ secure-monitor:
Missing a vendor prefix.
+ description: phandle to the secure-monitor node
+ $ref: /schemas/types.yaml#/definitions/phandle
+
amlogic,has-chip-id:
description: |
A firmware register encodes the SoC type, package and revision
--
2.45.2
_______________________________________________
linux-amlogic mailing list
linux-amlogic@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/linux-amlogic
--
with regards,
Viacheslav
