Commit 91e89097 authored Sep 16, 2020 by Neil Armstrong Committed by Steven Price Sep 21, 2020

drm/panfrost: add support for vendor quirk



The T820, G31 & G52 GPUs integrated by Amlogic in the respective GXM,
G12A/SM1 & G12B SoCs needs a quirk in the PWR registers after each reset.

This adds a callback in the device compatible struct of permit this.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[Steven: Fix typo in commit log]
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200916150147.25753-2-narmstrong@baylibre.com

parent a7d39439

drivers/gpu/drm/panfrost/panfrost_device.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -70,6 +70,9 @@ struct panfrost_compatible {
		int num_pm_domains;
		/* Only required if num_pm_domains > 1. */
		const char * const *pm_domain_names;

		/* Vendor implementation quirks callback */
		void (vendor_quirk)(struct panfrost_device pfdev);
		};

		struct panfrost_device {

drivers/gpu/drm/panfrost/panfrost_gpu.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -136,6 +136,10 @@ static void panfrost_gpu_init_quirks(struct panfrost_device *pfdev)

		if (quirks)
		gpu_write(pfdev, GPU_JM_CONFIG, quirks);

		/* Here goes platform specific quirks */
		if (pfdev->comp->vendor_quirk)
		pfdev->comp->vendor_quirk(pfdev);
		}

		#define MAX_HW_REVS 6

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