| Message ID | 20191219103536.25485-3-benjamin.gaignard@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add yaml DWC2 bindings | expand |
On Thu, Dec 19, 2019 at 11:35:36AM +0100, Benjamin Gaignard wrote: > Remove "snps,dwc2" from hsotg@12480000 node compatible list because > "samsung,s3c6400-hsotg" should be enough. The more detailed compatible is almost always "enough". Some other nodes also have detailed+generic compatible. In this case there is a driver matching "snps,dwc2" so why removing it? Best regards, Krzysztof > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> > --- > arch/arm/boot/dts/exynos3250.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi > index b016b0b68306..d4866269f4ee 100644 > --- a/arch/arm/boot/dts/exynos3250.dtsi > +++ b/arch/arm/boot/dts/exynos3250.dtsi > @@ -362,7 +362,7 @@ > }; > > hsotg: hsotg@12480000 { > - compatible = "samsung,s3c6400-hsotg", "snps,dwc2"; > + compatible = "samsung,s3c6400-hsotg"; > reg = <0x12480000 0x20000>; > interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>; > clocks = <&cmu CLK_USBOTG>; > -- > 2.15.0 >
On 12/30/19 4:37 PM, Krzysztof Kozlowski wrote: > On Thu, Dec 19, 2019 at 11:35:36AM +0100, Benjamin Gaignard wrote: >> Remove "snps,dwc2" from hsotg@12480000 node compatible list because >> "samsung,s3c6400-hsotg" should be enough. > The more detailed compatible is almost always "enough". Some other nodes > also have detailed+generic compatible. In this case there is a driver > matching "snps,dwc2" so why removing it? First because, unlike the others dwc2 devices, this compatible wasn't describe in the bindings file so I had to investigated how it should work and, on samsung DT files, only "samsung,s3c6400-hsotg". From driver code point of view that seems coherent (we do the same for stm32). With that in mind I have decided to remove "snps,dwc2" from exynos DT file rather than add it everywhere else. Benjamin > > Best regards, > Krzysztof > >> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> >> --- >> arch/arm/boot/dts/exynos3250.dtsi | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi >> index b016b0b68306..d4866269f4ee 100644 >> --- a/arch/arm/boot/dts/exynos3250.dtsi >> +++ b/arch/arm/boot/dts/exynos3250.dtsi >> @@ -362,7 +362,7 @@ >> }; >> >> hsotg: hsotg@12480000 { >> - compatible = "samsung,s3c6400-hsotg", "snps,dwc2"; >> + compatible = "samsung,s3c6400-hsotg"; >> reg = <0x12480000 0x20000>; >> interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>; >> clocks = <&cmu CLK_USBOTG>; >> -- >> 2.15.0 >>
On Thu, Jan 02, 2020 at 08:50:39AM +0000, Benjamin GAIGNARD wrote: > > On 12/30/19 4:37 PM, Krzysztof Kozlowski wrote: > > On Thu, Dec 19, 2019 at 11:35:36AM +0100, Benjamin Gaignard wrote: > >> Remove "snps,dwc2" from hsotg@12480000 node compatible list because > >> "samsung,s3c6400-hsotg" should be enough. > > The more detailed compatible is almost always "enough". Some other nodes > > also have detailed+generic compatible. In this case there is a driver > > matching "snps,dwc2" so why removing it? > > First because, unlike the others dwc2 devices, this compatible wasn't > describe in the bindings file > > so I had to investigated how it should work and, on samsung DT files, > only "samsung,s3c6400-hsotg". > > From driver code point of view that seems coherent (we do the same for > stm32). > > With that in mind I have decided to remove "snps,dwc2" from exynos DT > file rather than add it everywhere else. > Actually fine with me, although I would be happy if Rob or Mark could confirm that it is a preferred approach. Rob, Mark, could you share your thoughts? Best regards, Krzysztof
diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi index b016b0b68306..d4866269f4ee 100644 --- a/arch/arm/boot/dts/exynos3250.dtsi +++ b/arch/arm/boot/dts/exynos3250.dtsi @@ -362,7 +362,7 @@ }; hsotg: hsotg@12480000 { - compatible = "samsung,s3c6400-hsotg", "snps,dwc2"; + compatible = "samsung,s3c6400-hsotg"; reg = <0x12480000 0x20000>; interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cmu CLK_USBOTG>;
Remove "snps,dwc2" from hsotg@12480000 node compatible list because "samsung,s3c6400-hsotg" should be enough. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> --- arch/arm/boot/dts/exynos3250.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)