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 5.9-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-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c605f5caeea9ebf89d3fadfed42e0bfa03f07698 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 ada51df9a7a32..f6d5d03201fad 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, },