| Message ID | 1629791656-13698-1-git-send-email-sugar.zhang@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Patches to update for rockchip pdm | expand |
On Tue, Aug 24, 2021 at 03:54:15PM +0800, Sugar Zhang wrote: > This is an optional property to describe data path mapping. > > Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com> > --- > > Documentation/devicetree/bindings/sound/rockchip,pdm.txt | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt > index 54d94438..b2d7e47 100644 > --- a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt > +++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt > @@ -24,6 +24,22 @@ Required properties: > pinctrl-names. See ../pinctrl/pinctrl-bindings.txt > for details of the property values. > > +Optional properties: > +- rockchip,path-map: This is a variable length array, that shows the mapping The schema says this is a fixed length array. > + of SDIx to PATHx. By default, they are one-to-one mapping as follows: > + > + path0 <-- sdi0 > + path1 <-- sdi1 > + path2 <-- sdi2 > + path3 <-- sdi3 > + > + e.g. "rockchip,path-map = <3 2 1 0>" means the mapping as follows: > + > + path0 <-- sdi3 > + path1 <-- sdi2 > + path2 <-- sdi1 > + path3 <-- sdi0 > + > Example for rk3328 PDM controller: > > pdm: pdm@ff040000 { > -- > 2.7.4 > > > >
Hi Rob, On 2021/8/25 0:58, Rob Herring wrote: > On Tue, Aug 24, 2021 at 03:54:15PM +0800, Sugar Zhang wrote: >> This is an optional property to describe data path mapping. >> >> Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com> >> --- >> >> Documentation/devicetree/bindings/sound/rockchip,pdm.txt | 16 ++++++++++++++++ >> 1 file changed, 16 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt >> index 54d94438..b2d7e47 100644 >> --- a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt >> +++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt >> @@ -24,6 +24,22 @@ Required properties: >> pinctrl-names. See ../pinctrl/pinctrl-bindings.txt >> for details of the property values. >> >> +Optional properties: >> +- rockchip,path-map: This is a variable length array, that shows the mapping > The schema says this is a fixed length array. Actually, it varies depends on different controller or application. considering the situation: for 4 channel, we use path0/1, and hw wired to sdi1/3. we can map them to path0/1 as follows: rockchip,path-map = <1 3>; > >> + of SDIx to PATHx. By default, they are one-to-one mapping as follows: >> + >> + path0 <-- sdi0 >> + path1 <-- sdi1 >> + path2 <-- sdi2 >> + path3 <-- sdi3 >> + >> + e.g. "rockchip,path-map = <3 2 1 0>" means the mapping as follows: >> + >> + path0 <-- sdi3 >> + path1 <-- sdi2 >> + path2 <-- sdi1 >> + path3 <-- sdi0 >> + >> Example for rk3328 PDM controller: >> >> pdm: pdm@ff040000 { >> -- >> 2.7.4 >> >> >> >> > >
diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt index 54d94438..b2d7e47 100644 --- a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt +++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt @@ -24,6 +24,22 @@ Required properties: pinctrl-names. See ../pinctrl/pinctrl-bindings.txt for details of the property values. +Optional properties: +- rockchip,path-map: This is a variable length array, that shows the mapping + of SDIx to PATHx. By default, they are one-to-one mapping as follows: + + path0 <-- sdi0 + path1 <-- sdi1 + path2 <-- sdi2 + path3 <-- sdi3 + + e.g. "rockchip,path-map = <3 2 1 0>" means the mapping as follows: + + path0 <-- sdi3 + path1 <-- sdi2 + path2 <-- sdi1 + path3 <-- sdi0 + Example for rk3328 PDM controller: pdm: pdm@ff040000 {
This is an optional property to describe data path mapping. Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com> --- Documentation/devicetree/bindings/sound/rockchip,pdm.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)