arm64: dts: apalis-imx8: delete adma_pwm

i.MX8, i.MX8X, i.MX8XP and i.MX8XL SOC device trees are all based on
imx8-ss-*.dtsi files. For i.MX8X and i.MX8XP these device trees
should be updated with some peripherals removed or updated, similar
to i.MX8XL (imx8dxl-ss-*.dtsi files). However, it looks like only
i.MX8 and i.MX8XL are up to date, but for i.MX8X and i.MX8XP some
of the peripherals got inherited from imx8-ss-*.dtsi files, but in
reality they are not present on SOC.
As a result, during resource partition ownership check U-Boot receives
messages from SCU firmware about these resources not owned by boot
partition. In reality, these resources are not owned by anyone, as
they simply does not exist, but are defined in Linux device tree.
This change removes those peripherals, which are listed during
U-Boot resource partition ownership check as warnings:

  ## Flattened Device Tree blob at 9d400000
     Booting using the fdt blob at 0x9d400000
     Loading Device Tree to 00000000fd622000, end 00000000fd66efff ... OK
  Disable pwm@5a190000 rsrc 188 not owned
  Disable clock-controller@5a590000 rsrc 188 not owned

  Starting kernel ...

Upstream-Status: Inappropriate [other]

The issue is not present in upstream since these nodes are not present there,
only downstream is affected.

Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
index 5540846e60d0..e418d25dd4fe 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
@@ -1835,3 +1835,8 @@
 			<IMX8QM_MIPI_CSI0_GPIO0_01_LSIO_GPIO1_IO28		0x06000021>;
 	};
 };
+
+/* Delete peripherals which are not present on SOC, but are defined in imx8-ss-*.dtsi */
+
+/delete-node/ &adma_pwm;
+/delete-node/ &adma_pwm_lpcg;