| Message ID | 20240223172638.672366-1-varshini.rajendran@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | None | expand |
On 23.02.2024 19:26, Varshini Rajendran wrote: > Remove microchip,sam9x60-spi compatible from the list as the driver used > has the compatible atmel,at91rm9200-spi and sam9x60 devices also use the > same compatible as fallback. So removing the microchip,sam9x60-spi > compatible from the list since it is not needed. > I find this wrong. I though we shall add compatibles for each SoC. Are the registers and fields the same for the SPI IPs in these 2 SoCs? Even if they are the same, are you sure the IPs are integrated in the same way? > Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com> > --- > Changes in v4: > - Elaborated the explanation in the commit message to justify the patch > --- > Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml > index 58367587bfbc..32e7c14033c2 100644 > --- a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml > +++ b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml > @@ -22,7 +22,6 @@ properties: > - const: atmel,at91rm9200-spi > - items: > - const: microchip,sam9x7-spi > - - const: microchip,sam9x60-spi > - const: atmel,at91rm9200-spi > > reg:
Hi Tudor, On 26/02/24 2:39 pm, Tudor Ambarus wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On 23.02.2024 19:26, Varshini Rajendran wrote: >> Remove microchip,sam9x60-spi compatible from the list as the driver used >> has the compatible atmel,at91rm9200-spi and sam9x60 devices also use the >> same compatible as fallback. So removing the microchip,sam9x60-spi >> compatible from the list since it is not needed. >> > > I find this wrong. I though we shall add compatibles for each SoC. Are > the registers and fields the same for the SPI IPs in these 2 SoCs? Even > if they are the same, are you sure the IPs are integrated in the same way? Which two SoCs are you referring to ? I am not removing the device specific compatible. I am only removing the additional fallback compatible. As in, compatible = "microchip,sam9x7-spi", "atmel,at91rm9200-spi"; instead of, compatible = "microchip,sam9x7-spi", "microchip,sam9x60-spi", "atmel,at91rm9200-spi"; for the sam9x7 devices. Hope this is clear. If I have it wrong please let me know. > >> Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com> >> --- >> Changes in v4: >> - Elaborated the explanation in the commit message to justify the patch >> --- >> Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml | 1 - >> 1 file changed, 1 deletion(-) >> >> diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml >> index 58367587bfbc..32e7c14033c2 100644 >> --- a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml >> +++ b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml >> @@ -22,7 +22,6 @@ properties: >> - const: atmel,at91rm9200-spi >> - items: >> - const: microchip,sam9x7-spi >> - - const: microchip,sam9x60-spi >> - const: atmel,at91rm9200-spi >> >> reg:
On 2/28/24 09:28, Varshini.Rajendran@microchip.com wrote: > Hi Tudor, > > On 26/02/24 2:39 pm, Tudor Ambarus wrote: >> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe >> >> On 23.02.2024 19:26, Varshini Rajendran wrote: >>> Remove microchip,sam9x60-spi compatible from the list as the driver used >>> has the compatible atmel,at91rm9200-spi and sam9x60 devices also use the >>> same compatible as fallback. So removing the microchip,sam9x60-spi >>> compatible from the list since it is not needed. >>> >> >> I find this wrong. I though we shall add compatibles for each SoC. Are >> the registers and fields the same for the SPI IPs in these 2 SoCs? Even >> if they are the same, are you sure the IPs are integrated in the same way? > > Which two SoCs are you referring to ? > I am not removing the device specific compatible. I am only removing the > additional fallback compatible. > ah, I read it wrong, sorry > As in, > > compatible = "microchip,sam9x7-spi", "atmel,at91rm9200-spi"; > > instead of, > > compatible = "microchip,sam9x7-spi", "microchip,sam9x60-spi", > "atmel,at91rm9200-spi"; > > for the sam9x7 devices. > > Hope this is clear. If I have it wrong please let me know. it's clear now, thanks. I see in the driver that microchip,sam9x60-spi compatible is not yet used, thus removing the fallback to "microchip,sam9x60-spi" brings no functional change. Would have made a difference if sam9x60-spi implemented additional support that sam9x7-spi could have used as a fallback. If you think that sam9x7-spi will not fallback to sam9x60-spi in the future then: Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org> > >> >>> Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com> >>> --- >>> Changes in v4: >>> - Elaborated the explanation in the commit message to justify the patch >>> --- >>> Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml | 1 - >>> 1 file changed, 1 deletion(-) >>> >>> diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml >>> index 58367587bfbc..32e7c14033c2 100644 >>> --- a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml >>> +++ b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml >>> @@ -22,7 +22,6 @@ properties: >>> - const: atmel,at91rm9200-spi >>> - items: >>> - const: microchip,sam9x7-spi >>> - - const: microchip,sam9x60-spi >>> - const: atmel,at91rm9200-spi >>> >>> reg: >
diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml index 58367587bfbc..32e7c14033c2 100644 --- a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml +++ b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml @@ -22,7 +22,6 @@ properties: - const: atmel,at91rm9200-spi - items: - const: microchip,sam9x7-spi - - const: microchip,sam9x60-spi - const: atmel,at91rm9200-spi reg:
Remove microchip,sam9x60-spi compatible from the list as the driver used has the compatible atmel,at91rm9200-spi and sam9x60 devices also use the same compatible as fallback. So removing the microchip,sam9x60-spi compatible from the list since it is not needed. Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com> --- Changes in v4: - Elaborated the explanation in the commit message to justify the patch --- Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml | 1 - 1 file changed, 1 deletion(-)