[RFC PATCH 0/4] Add support for i.MX8MM GPUs through Etnaviv

[Schrempf Frieder]

From: Frieder Schrempf <frieder.schrempf at kontron.de>

This series contains patches to enable GPU support for the i.MX8MM.
There is currently no upstream support for the display subsystem of
the i.MX8MM, but I have a 5.4-based tree with some ported drivers for
LCDIF, DSIM bridge, etc. (see [1]) which I used to test the GPU with
glmark2.

I'm posting this as an RFC for now, as I'm not feeling confident of
all of the changes. Especially patch 1 seems a bit like a hack. Maybe
someone can help me understand the underlying problem and/or come up
with a better fix.

[1] https://git.kontron-electronics.de/linux/linux/-/commits/v5.4-ktn

Frieder Schrempf (4):
  drm/etnaviv: Prevent IRQ triggering at probe time on i.MX8MM
  drm/etnaviv: Fix error path in etnaviv_gpu_clk_enable()
  drm/etnaviv: Change order of enabling clocks to fix boot on i.MX8MM
  arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core using Etnaviv

 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 36 ++++++++++++
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c     | 68 ++++++++++++++---------
 2 files changed, 79 insertions(+), 25 deletions(-)

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2.17.1