| Message ID | 20211231161930.256733-6-krzysztof.kozlowski@canonical.com |
|---|---|
| State | New |
| Headers | show |
| Series | pinctrl: dt-bindings: samsung: convert to dtschema | expand |
Hi Krzysztof On Sat, Jan 1, 2022 at 11:15 AM Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> wrote: > > Using node paths to extend or override a device tree node is error > prone. If there was a typo error, a new node will be created instead of > extending the existing node. This will lead to run-time errors that > could be hard to detect. > > A mistyped label on the other hand, will cause a dtc compile error > (during build time). > While it makes sense to do this, was wondering if you faced any issue with the current implementation? > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> > --- Feel free to add Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> > arch/arm/boot/dts/exynos5420-peach-pit.dts | 44 +++++++++++----------- > 1 file changed, 22 insertions(+), 22 deletions(-) > > diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts > index e76fb104db19..1ae5528e9ebf 100644 > --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts > +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts > @@ -868,27 +868,26 @@ pmic_dvs_1: pmic-dvs-1 { > }; > }; > > -&pinctrl_1 { > - /* Adjust WiFi drive strengths lower for EMI */ > - sd1_clk: sd1-clk { > - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > - }; > +/* pinctrl_1 */ > +/* Adjust WiFi drive strengths lower for EMI */ > +&sd1_bus1 { > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > +}; > > - sd1_cmd: sd1-cmd { > - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > - }; > +&sd1_bus4 { > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > +}; > > - sd1_bus1: sd1-bus-width1 { > - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > - }; > +&sd1_bus8 { > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > +}; > > - sd1_bus4: sd1-bus-width4 { > - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > - }; > +&sd1_clk { > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > +}; > > - sd1_bus8: sd1-bus-width8 { > - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > - }; > +&sd1_cmd { > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > }; > > &pinctrl_2 { > @@ -907,12 +906,13 @@ pmic_dvs_3: pmic-dvs-3 { > }; > }; > > -&pinctrl_3 { > - /* Drive SPI lines at x2 for better integrity */ > - spi2-bus { > - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > - }; > +/* pinctrl_3*/ > +/* Drive SPI lines at x2 for better integrity */ > +&spi2_bus { > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; > +}; > > +&pinctrl_3 { > /* Drive SPI chip select at x2 for better integrity */ > ec_spi_cs: ec-spi-cs { > samsung,pins = "gpb1-2"; > -- > 2.32.0 >
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index e76fb104db19..1ae5528e9ebf 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -868,27 +868,26 @@ pmic_dvs_1: pmic-dvs-1 { }; }; -&pinctrl_1 { - /* Adjust WiFi drive strengths lower for EMI */ - sd1_clk: sd1-clk { - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; - }; +/* pinctrl_1 */ +/* Adjust WiFi drive strengths lower for EMI */ +&sd1_bus1 { + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; +}; - sd1_cmd: sd1-cmd { - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; - }; +&sd1_bus4 { + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; +}; - sd1_bus1: sd1-bus-width1 { - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; - }; +&sd1_bus8 { + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; +}; - sd1_bus4: sd1-bus-width4 { - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; - }; +&sd1_clk { + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; +}; - sd1_bus8: sd1-bus-width8 { - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; - }; +&sd1_cmd { + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; }; &pinctrl_2 { @@ -907,12 +906,13 @@ pmic_dvs_3: pmic-dvs-3 { }; }; -&pinctrl_3 { - /* Drive SPI lines at x2 for better integrity */ - spi2-bus { - samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; - }; +/* pinctrl_3*/ +/* Drive SPI lines at x2 for better integrity */ +&spi2_bus { + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>; +}; +&pinctrl_3 { /* Drive SPI chip select at x2 for better integrity */ ec_spi_cs: ec-spi-cs { samsung,pins = "gpb1-2";
Using node paths to extend or override a device tree node is error prone. If there was a typo error, a new node will be created instead of extending the existing node. This will lead to run-time errors that could be hard to detect. A mistyped label on the other hand, will cause a dtc compile error (during build time). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> --- arch/arm/boot/dts/exynos5420-peach-pit.dts | 44 +++++++++++----------- 1 file changed, 22 insertions(+), 22 deletions(-)