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| author | Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> | 2023-12-07 09:06:50 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-12-13 20:05:36 +0100 |
| commit | da235d2fac212d0add570e755feb1167a830bc99 (patch) | |
| tree | 1ca1e1d81a3d77ce671e94ef525c4549280b6591 /drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | |
| parent | 755cb955e2e7a2ef65e7a782925585ef1cce53b6 (diff) | |
clk: renesas: rzg2l: Check reset monitor registers
The hardware manual of both RZ/G2L and RZ/G3S specifies that the reset
monitor registers need to be interrogated when the reset signals are
toggled (chapters "Procedures for Supplying and Stopping Reset Signals"
and "Procedure for Activating Modules"). Without this, there is a
chance that different modules (e.g. Ethernet) are not ready after their
reset signal is toggled, leading to failures (on probe or resume from
deep sleep states).
The same indications are available for RZ/V2M for TYPE-B reset controls.
Fixes: ef3c613ccd68 ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Fixes: 8090bea32484 ("clk: renesas: rzg2l: Add support for RZ/V2M reset monitor reg")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20231207070700.4156557-2-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c')
0 files changed, 0 insertions, 0 deletions