在 2023/8/9 下午11:39, Conor Dooley 写道:
On Wed, Aug 09, 2023 at 03:47:55PM +0800, Yinbo Zhu wrote:
在 2023/8/8 下午8:05, Conor Dooley 写道:
On Mon, Aug 07, 2023 at 03:40:42PM +0800, Yinbo Zhu wrote:
+ loongson,gpio-ctrl-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ This option indicate this GPIO control mode, where '0' represents
+ bit control mode and '1' represents byte control mode.
How is one supposed to know which of these modes to use?
Byte mode is to access by byte, such as gpio3, the base address of the
gpio controller is offset by 3 bytes as the access address of gpio3.
The bit mode is the normal mode that like other platform gpio and it is
to access by bit.
If both modes are supported, it is recommended to prioritize using byte
mode that according to spec.
So, sounds like this property should instead be a boolean that notes
whether the hardware supports the mode or not, rather than the current
enum used to determine software policy.
okay, I got it, I will use boolean,
Thanks,
Yinbo.
