kernel/linux.git/drivers/gpu/drm/tegra/gr2d.c, branch v6.4

drm/tegra: gr2d: Convert to platform remove callback returning void

2023-04-04T12:24:41+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Signed-off-by: Thierry Reding

gpu: host1x: Make host1x_client_unregister() return void

2023-04-04T11:59:10+00:00

This function returned zero unconditionally. Make it return no value and simplify all callers accordingly. Signed-off-by: Uwe Kleine-König Acked-by: Hans Verkuil Signed-off-by: Thierry Reding

drm/tegra: Consolidate runtime PM management of older UAPI codepath

2021-12-16T13:07:08+00:00

Move runtime PM management of older UAPI code paths into the common place. This removes boilerplate code from client drivers. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: gr2d: Support generic power domain and runtime PM

2021-12-16T13:07:07+00:00

Add runtime power management and support generic power domains. Reviewed-by: Ulf Hansson Tested-by: Peter Geis # Ouya T30 Tested-by: Paul Fertser # PAZ00 T20 Tested-by: Nicolas Chauvet # PAZ00 T20 and TK1 T124 Tested-by: Matt Merhar # Ouya T30 Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: gr2d: Explicitly control module reset

2021-12-16T13:07:07+00:00

As of commit 4782c0a5dd88 ("clk: tegra: Don't deassert reset on enabling clocks"), module resets are no longer automatically deasserted when the module clock is enabled. To make sure that the gr2d module continues to work, we need to explicitly control the module reset. Fixes: 4782c0a5dd88 ("clk: tegra: Don't deassert reset on enabling clocks") Signed-off-by: Thierry Reding

gpu: host1x: Cleanup and refcounting for syncpoints

2021-03-31T15:42:13+00:00

Add reference counting for allocated syncpoints to allow keeping them allocated while jobs are referencing them. Additionally, clean up various places using syncpoint IDs to use host1x_syncpt pointers instead. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: gr2d: Add compatible for Tegra114

2021-01-15T16:19:09+00:00

Tegra114 has GR2D hardware block, support it by the 2D driver. Tested-by: Anton Bambura Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: gr2d: Correct swapped device-tree compatibles

2021-01-15T16:18:52+00:00

The device-tree compatibles are swapped in the code, correct them. Tested-by: Peter Geis Tested-by: Nicolas Chauvet Tested-by: Matt Merhar Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: gr2d: Add tiled PATBASE address register

2020-07-17T14:06:16+00:00

There are two PATBASE address registers, one for linear layout and other for tiled. The driver's address registers list misses the tiled PATBASE register. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

gpu: host1x: Rename "parent" to "host"

2020-01-10T15:37:38+00:00

Rename the host1x clients' parent to "host" because that more closely describes what it is. The parent can be confused with the parent device in terms of the device hierarchy. Subsequent patches will add a new member that refers to the parent in that hierarchy. Signed-off-by: Thierry Reding