On Thu, Apr 01, 2021 at 08:14:39PM CDT, Andrew Jeffery wrote:
On Fri, 2 Apr 2021, at 11:17, Zev Weiss wrote:
These correspond to the existing lpc_address, sirq, and sirq_polarity
sysfs attributes; the second element of aspeed,sirq provides a
replacement for the deprecated aspeed,sirq-polarity-sense property.
Signed-off-by: Zev Weiss <z...@bewilderbeest.net>
---
.../devicetree/bindings/serial/8250.yaml | 27 ++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/8250.yaml
b/Documentation/devicetree/bindings/serial/8250.yaml
index 491b9297432d..a6e01f9b745f 100644
--- a/Documentation/devicetree/bindings/serial/8250.yaml
+++ b/Documentation/devicetree/bindings/serial/8250.yaml
@@ -12,8 +12,13 @@ maintainers:
allOf:
- $ref: /schemas/serial.yaml#
- if:
- required:
- - aspeed,sirq-polarity-sense
+ anyOf:
+ - required:
+ - aspeed,lpc-address
Why not aspeed,lpc-io-reg like the KCS binding?
There are some things we can do to improve it, but we shouldn't go and invent
something different. I prefer aspeed,lpc-io-reg because it's name derives from
the generic 'reg' property as does it's behaviour (if you assume a related
`#size-cells = 0`).
+ - required:
+ - aspeed,sirq
Why not aspeed,lpc-interrupts like the KCS binding?
The generic IRQ property is 'interrupts', so like aspeed,lpc-io-reg the
interrupts proposal for KCS follows in name and form. I'm hiding it behind the
aspeed vendor prefix for now while I'm not satisfied that I understand the
requirements of non-aspeed parts. Similarly, I added the lpc prefix because we
don't tend to describe the host devicetree in the BMC devicetree (and so
there's no parent interrupt controller that we can reference via a phandle) and
we need a way to differentiate from the local interrupts property.
I don't see a reason for either of them to differ from what we already have for
KCS, and I don't see any reason to continue the sysfs naming scheme in the
binding.
Ah, OK -- I was aiming for consistency with the existing vuart sysfs
attributes, but if that's not a worthwhile concern I'm fine with
aspeed,lpc-io-reg & aspeed,lpc-interrupts.
Zev
