This is a note to let you know that I've just added the patch titled
drm/panfrost: add Amlogic GPU integration quirks
to the 5.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-panfrost-add-amlogic-gpu-integration-quirks.patch
and it can be found in the queue-5.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 563f9f573391b436dbab98b55dce5679e651109b
Author: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Date: Wed Sep 16 17:01:47 2020 +0200
drm/panfrost: add Amlogic GPU integration quirks
[ Upstream commit afcd0c7d3d4c22afc8befcfc906db6ce3058d3ee ]
This adds the required GPU quirks, including the quirk in the PWR
registers at the GPU reset time and the IOMMU quirk for shareability
issues observed on G52 in Amlogic G12B SoCs.
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Reviewed-by: Steven Price <steven.price@xxxxxxx>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@xxxxxxxxxxxxx>
Signed-off-by: Steven Price <steven.price@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20200916150147.25753-4-narmstrong@xxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index 882fecc33fdb1..6e11a73e81aa3 100644
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -667,7 +667,18 @@ static const struct panfrost_compatible default_data = {
.pm_domain_names = NULL,
};
+static const struct panfrost_compatible amlogic_data = {
+ .num_supplies = ARRAY_SIZE(default_supplies),
+ .supply_names = default_supplies,
+ .vendor_quirk = panfrost_gpu_amlogic_quirk,
+};
+
static const struct of_device_id dt_match[] = {
+ /* Set first to probe before the generic compatibles */
+ { .compatible = "amlogic,meson-gxm-mali",
+ .data = &amlogic_data, },
+ { .compatible = "amlogic,meson-g12a-mali",
+ .data = &amlogic_data, },
{ .compatible = "arm,mali-t604", .data = &default_data, },
{ .compatible = "arm,mali-t624", .data = &default_data, },
{ .compatible = "arm,mali-t628", .data = &default_data, },
