arm64: dts: imx8mm-venice-gw7904: disable disp_blk_ctrl

BugLink: https://bugs.launchpad.net/bugs/2038236
[ Upstream commit f7a0b57524cf811ac06257a5099f1b7c19ee7310 ]

The GW7904 does not connect the VDD_MIPI power rails thus MIPI is
disabled. However we must also disable disp_blk_ctrl as it uses the
pgc_mipi power domain and without it being disabled imx8m-blk-ctrl will
fail to probe:
imx8m-blk-ctrl 32e28000.blk-ctrl: error -ETIMEDOUT: failed to attach
power domain "mipi-dsi"
imx8m-blk-ctrl: probe of 32e28000.blk-ctrl failed with error -110

Fixes: b999bdaf0597 ("arm64: dts: imx: Add i.mx8mm Gateworks gw7904 dts support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts
index eceed9816f5dc1ebb9861439d0d3daad851ae63a..30e1698c05478769c9e6e62f9014367991e5df36 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts
@@ -629,6 +629,10 @@
        status = "okay";
 };
 
+&disp_blk_ctrl {
+       status = "disabled";
+};
+
 &pgc_mipi {
        status = "disabled";
 };