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drm/panfrost: Add GPU_PM_RT support for RZ/G3E SoC

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RZ/G3E SoC is embedded with Mali-G52 GPU system. The system hangs after
STR in the following condition:

STR -> Wakeup from STR -> Unload panfrost using 'modprobe -r panfrost'.

Fix this issue by asserting/deasserting the reset during suspend/resume.
Rename the variable allwinner_h616_data->default_pm_rt_data for data
reuse and make it as generic GPU PM runtime data.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20251203125104.67596-1-biju.das.jz@bp.renesas.com
Signed-off-by: Adrian Larumbe <adrianml@alumnos.upm.es>
This commit is contained in:
Biju Das 2025-12-03 12:51:01 +00:00 committed by Adrian Larumbe
parent 4f1b30fe9e
commit 38b91e424c
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/panfrost/panfrost_drv.c
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@ -1077,7 +1077,7 @@ static const struct panfrost_compatible default_data = {
.pm_domain_names = NULL,
};
static const struct panfrost_compatible allwinner_h616_data = {
static const struct panfrost_compatible default_pm_rt_data = {
.num_supplies = ARRAY_SIZE(default_supplies) - 1,
.supply_names = default_supplies,
.num_pm_domains = 1,
@ -1157,6 +1157,7 @@ static const struct of_device_id dt_match[] = {
.data = &amlogic_data, },
{ .compatible = "amlogic,meson-g12a-mali",
.data = &amlogic_data, },
{ .compatible = "renesas,r9a09g047-mali", .data = &default_pm_rt_data },
{ .compatible = "arm,mali-t604", .data = &default_data, },
{ .compatible = "arm,mali-t624", .data = &default_data, },
{ .compatible = "arm,mali-t628", .data = &default_data, },
@ -1174,7 +1175,7 @@ static const struct of_device_id dt_match[] = {
{ .compatible = "mediatek,mt8188-mali", .data = &mediatek_mt8188_data },
{ .compatible = "mediatek,mt8192-mali", .data = &mediatek_mt8192_data },
{ .compatible = "mediatek,mt8370-mali", .data = &mediatek_mt8370_data },
{ .compatible = "allwinner,sun50i-h616-mali", .data = &allwinner_h616_data },
{ .compatible = "allwinner,sun50i-h616-mali", .data = &default_pm_rt_data },
{}
};
MODULE_DEVICE_TABLE(of, dt_match);