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emacs 31.1 Date: Mon, 09 Nov 2026 10:06:47 +0100 Message-ID: <871p8uidaw.fsf@pengutronix.de> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; format=flowed On 2026-10-14 at 07:53 +02, Krzysztof Kozlowski wrote: > On 14/10/2026 07:38, Steffen Trumtrar wrote: > > > > Hi, > > > > On 2026-10-13 at 09:31 +02, Krzysztof Kozlowski wrote: > > > >> On Mon, Oct 12, 2026 at 08:30:32AM +0200, Steffen Trumtrar wrote: > >>> The i.MX8MP Skov RevC jutouch 10" and Tian 7" variants are pretty > >>> similar, apart from the Display and touch controller. > >>> > >>> Move the common bindings to imx8mp-skov-revc-touch.dts and convert both > >>> variants to use overlays applied on this base version. > >>> > >>> Signed-off-by: Steffen Trumtrar > >>> --- > >>> arch/arm64/boot/dts/freescale/Makefile | 5 ++ > >>> .../imx8mp-skov-revc-jutouch-jt101tm023.dtso | 38 ++++++++++ > >>> .../dts/freescale/imx8mp-skov-revc-tian-g07017.dts | 81 ---------------------- > >>> .../freescale/imx8mp-skov-revc-tian-g07017.dtso | 40 +++++++++++ > >>> ...h-jt101tm023.dts => imx8mp-skov-revc-touch.dts} | 26 +++---- > >>> 5 files changed, 91 insertions(+), 99 deletions(-) > >>> > >>> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile > >>> index 475e1ad9116e1..7c1b61249778e 100644 > >>> --- a/arch/arm64/boot/dts/freescale/Makefile > >>> +++ b/arch/arm64/boot/dts/freescale/Makefile > >>> @@ -707,6 +707,11 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-lt6.dtb > >>> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-mi1010ait-1cp1.dtb > >>> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revc-bd500.dtb > >>> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revc-hdmi.dtb > >>> + > >>> +imx8mp-skov-revc-jutouch-jt101tm023-dtbs += imx8mp-skov-revc-touch.dtb \ > >>> + imx8mp-skov-revc-jutouch-jt101tm023.dtbo > >>> +imx8mp-skov-revc-tian-g07017-dtbs += imx8mp-skov-revc-touch.dtb \ > >>> + imx8mp-skov-revc-tian-g07017.dtbo > >>> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revc-jutouch-jt101tm023.dtb > >>> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revc-tian-g07017.dtb > >>> dtb-$(CONFIG_ARCH_MXC) += imx8mp-toradex-smarc-dev.dtb > >>> diff --git > >>> a/arch/arm64/boot/dts/freescale/imx8mp-skov-revc-jutouch-jt101tm023.dtso > >>> b/arch/arm64/boot/dts/freescale/imx8mp-skov-revc-jutouch-jt101tm023.dtso > >>> new file mode 100644 > >>> index 0000000000000..33ddd08a7adb5 > >>> --- /dev/null > >>> +++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-revc-jutouch-jt101tm023.dtso > >> > >> I do not understand this. This is a board, so not an overlay. > > > > yes, that's what I did up until v4. New board with new dts. > > > > - Link to v4: https://patch.msgid.link/20260706-v7-0-topic-imx8mp-skov-dts-jutouch-7inch-v4-0-dfc0c8827c02@pengutronix.de > > > > The boards are all very similar apart from the touch panel, but they are all > > "real" boards and don't share a SOM, so dtsi is also not correct. > > > > So why this is not a DTS? One could argue, that the board, the RevC-Touch, is always the same hardware and there is only a different panel connected to it. Which is what is really happening. The panel is an attached device with these boards. So, imx8mp-skov-revc-touch is the board without any touchpanel connected. This still boots and is a standalone board where you can connect different touch panels to. So, Peng [1] and Frank [2] are correct when they suggested overlays in v4, no? [1] https://lore.kernel.org/all/akupDXc1QA4uKfR6@shlinux89/ [2] https://lore.kernel.org/all/ak5nKnRUmOxDxgZd@SMW015318/ Best regard, Steffen -- Pengutronix e.K. | Dipl.-Inform. Steffen Trumtrar | Steuerwalder Str. 21 | https://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686| Fax: +49-5121-206917-5555 |