| Message ID | 20221129023401.278780-1-bero@baylibre.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Remove the pins-are-numbered DT property | expand |
Hi Bero, long time no see! On Tue, Nov 29, 2022 at 3:34 AM Bernhard Rosenkränzer <bero@baylibre.com> wrote: > During the review of my MT8365 support patchset > (https://lore.kernel.org/linux-mediatek/20221117210356.3178578-1-bero@baylibre.com/), > the issue of the "pins-are-numbered" DeviceTree property has come up. (...) > This patchset removes all uses of pins-are-numbered and marks the > property as deprecated. I don't remember any more why this property was introduced, but I am happy to see it go. > Bernhard Rosenkränzer (7): > pinctrl: mediatek: common: Remove check for pins-are-numbered > pinctrl: stm32: Remove check for pins-are-numbered > dt-bindings: pinctrl: mediatek,mt65xx: Deprecate pins-are-numbered > dt-bindings: pinctrl: st,stm32: Deprecate pins-are-numbered I applied patches 1-4 to the pin control tree for v6.2, please funnel the rest through mediatek/stm32 and SoC trees! Yours, Linus Walleij
On Sat, Dec 3, 2022 at 10:22 AM Linus Walleij <linus.walleij@linaro.org> wrote: > > Hi Bero, > > long time no see! Hi Linus, indeed, I've been doing mostly userland stuff lately, and my latest kernel patch was x86 (got to keep all of my hardware working ;) ). Now that I've changed jobs, I'm expecting to be more active on the kernel side (though still doing a lot of userland). > > This patchset removes all uses of pins-are-numbered and marks the > > property as deprecated. > > I don't remember any more why this property was introduced, but > I am happy to see it go. I couldn't find why it was introduced either (and git blame wasn't much help). I'm assuming there was some other mode in vendor trees that never made it into mainline (but the flag for switching between the modes did). > I applied patches 1-4 to the pin control tree for v6.2, > please funnel the rest through mediatek/stm32 and > SoC trees! Thanks! Remaining patches reposted and currently waiting. ttyl bero
During the review of my MT8365 support patchset (https://lore.kernel.org/linux-mediatek/20221117210356.3178578-1-bero@baylibre.com/), the issue of the "pins-are-numbered" DeviceTree property has come up. This property is unique to Mediatek MT65xx and STM32 pinctrls, and doesn't seem to serve any purpose (both the Mediatek and STM32 drivers simply refuse to deal with a device unless pins-are-numbered is set to true). There is no other use of this property in the kernel or in other projects using DeviceTrees (checked u-boot and FreeBSD -- in both of those, the flag is present in Mediatek and STM devicetrees, but not used anywhere). There is also no known use in userspace (in fact, a userland application relying on the property would be broken because it would get true on any Mediatek or STM chipset and false on all others, even though other chipsets use numbered pins). This patchset removes all uses of pins-are-numbered and marks the property as deprecated. v3: - No functional changes; add recent Reviewed-Bys and Acked-Bys, add linux-gpio to Cc v2: - Deprecate the property instead of removing it completely from schemas - squash some related commits Bernhard Rosenkränzer (7): pinctrl: mediatek: common: Remove check for pins-are-numbered pinctrl: stm32: Remove check for pins-are-numbered dt-bindings: pinctrl: mediatek,mt65xx: Deprecate pins-are-numbered dt-bindings: pinctrl: st,stm32: Deprecate pins-are-numbered arm64: dts: mediatek: Remove pins-are-numbered property ARM: dts: mediatek: Remove pins-are-numbered property ARM: dts: stm32: Remove the pins-are-numbered property .../bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml | 5 ++--- .../devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml | 7 +++---- arch/arm/boot/dts/mt2701.dtsi | 1 - arch/arm/boot/dts/mt7623.dtsi | 1 - arch/arm/boot/dts/mt8135.dtsi | 1 - arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 1 - arch/arm/boot/dts/stm32f7-pinctrl.dtsi | 1 - arch/arm/boot/dts/stm32h743.dtsi | 1 - arch/arm/boot/dts/stm32mp131.dtsi | 1 - arch/arm/boot/dts/stm32mp151.dtsi | 2 -- arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 1 - arch/arm64/boot/dts/mediatek/mt8167.dtsi | 1 - arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 1 - arch/arm64/boot/dts/mediatek/mt8173.dtsi | 1 - arch/arm64/boot/dts/mediatek/mt8516.dtsi | 1 - drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 6 ------ drivers/pinctrl/stm32/pinctrl-stm32.c | 5 ----- 17 files changed, 5 insertions(+), 32 deletions(-)