Re: [PATCH v2 4/6] dt-bindings: misc: atmel-ssc: LRCLK from TF/RF pin option
On Wed, Aug 28, 2019 at 8:03 AM Michał Mirosław wrote: > > On Tue, Aug 27, 2019 at 05:37:16PM -0500, Rob Herring wrote: > > On Sat, Aug 24, 2019 at 10:26:55PM +0200, Michał Mirosław wrote: > > > Add single-pin LRCLK source options for Atmel SSC module. > > > > > > Signed-off-by: Michał Mirosław > > > > > > --- > > > v2: split from implementation patch > > > > > > --- > > > Documentation/devicetree/bindings/misc/atmel-ssc.txt | 5 + > > > 1 file changed, 5 insertions(+) > > > > > > diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > > b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > > index f9fb412642fe..c98e96dbec3a 100644 > > > --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > > +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > > @@ -24,6 +24,11 @@ Optional properties: > > > this parameter to choose where the clock from. > > > - By default the clock is from TK pin, if the clock from RK pin, > > > this > > > property is needed. > > > + - atmel,lrclk-from-tf-pin: bool property. > > > + - atmel,lrclk-from-rf-pin: bool property. > > > + - SSC in slave mode gets LRCLK from RF for receive and TF for > > > transmit > > > + data direction. This property makes both use single TF (or RF) pin > > > + as LRCLK. At most one can be present. > > > > A single property taking 1 of possible 2 values would prevent the error > > of more than 1 property present. > > It still would need a validation check in the code, though: you > could put wrong value then. It seems more consistent with the > existing parameters to have two bool properties. It was validation using schema that I was thinking about. Expressing a possible set of values for a property is easier than inter-property constraints. But if you really prefer as-is: Reviewed-by: Rob Herring
Re: [PATCH v2 4/6] dt-bindings: misc: atmel-ssc: LRCLK from TF/RF pin option
On Tue, Aug 27, 2019 at 05:37:16PM -0500, Rob Herring wrote: > On Sat, Aug 24, 2019 at 10:26:55PM +0200, Michał Mirosław wrote: > > Add single-pin LRCLK source options for Atmel SSC module. > > > > Signed-off-by: Michał Mirosław > > > > --- > > v2: split from implementation patch > > > > --- > > Documentation/devicetree/bindings/misc/atmel-ssc.txt | 5 + > > 1 file changed, 5 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > index f9fb412642fe..c98e96dbec3a 100644 > > --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > > @@ -24,6 +24,11 @@ Optional properties: > > this parameter to choose where the clock from. > > - By default the clock is from TK pin, if the clock from RK pin, this > > property is needed. > > + - atmel,lrclk-from-tf-pin: bool property. > > + - atmel,lrclk-from-rf-pin: bool property. > > + - SSC in slave mode gets LRCLK from RF for receive and TF for transmit > > + data direction. This property makes both use single TF (or RF) pin > > + as LRCLK. At most one can be present. > > A single property taking 1 of possible 2 values would prevent the error > of more than 1 property present. It still would need a validation check in the code, though: you could put wrong value then. It seems more consistent with the existing parameters to have two bool properties. Best Regards, Michał Mirosław
Re: [PATCH v2 4/6] dt-bindings: misc: atmel-ssc: LRCLK from TF/RF pin option
On Sat, Aug 24, 2019 at 10:26:55PM +0200, Michał Mirosław wrote: > Add single-pin LRCLK source options for Atmel SSC module. > > Signed-off-by: Michał Mirosław > > --- > v2: split from implementation patch > > --- > Documentation/devicetree/bindings/misc/atmel-ssc.txt | 5 + > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > index f9fb412642fe..c98e96dbec3a 100644 > --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > @@ -24,6 +24,11 @@ Optional properties: > this parameter to choose where the clock from. > - By default the clock is from TK pin, if the clock from RK pin, this > property is needed. > + - atmel,lrclk-from-tf-pin: bool property. > + - atmel,lrclk-from-rf-pin: bool property. > + - SSC in slave mode gets LRCLK from RF for receive and TF for transmit > + data direction. This property makes both use single TF (or RF) pin > + as LRCLK. At most one can be present. A single property taking 1 of possible 2 values would prevent the error of more than 1 property present. >- #sound-dai-cells: Should contain <0>. > - This property makes the SSC into an automatically registered DAI. > > -- > 2.20.1 >
[PATCH v2 4/6] dt-bindings: misc: atmel-ssc: LRCLK from TF/RF pin option
Add single-pin LRCLK source options for Atmel SSC module. Signed-off-by: Michał Mirosław --- v2: split from implementation patch --- Documentation/devicetree/bindings/misc/atmel-ssc.txt | 5 + 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt index f9fb412642fe..c98e96dbec3a 100644 --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt @@ -24,6 +24,11 @@ Optional properties: this parameter to choose where the clock from. - By default the clock is from TK pin, if the clock from RK pin, this property is needed. + - atmel,lrclk-from-tf-pin: bool property. + - atmel,lrclk-from-rf-pin: bool property. + - SSC in slave mode gets LRCLK from RF for receive and TF for transmit + data direction. This property makes both use single TF (or RF) pin + as LRCLK. At most one can be present. - #sound-dai-cells: Should contain <0>. - This property makes the SSC into an automatically registered DAI. -- 2.20.1
