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| author | Chris Brandt <chris.brandt@renesas.com> | 2019-09-26 07:19:09 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 13:10:12 +0200 |
| commit | a0f7fd38acf5e224d7352dd22b9d0aa8480f8eb8 (patch) | |
| tree | c377b69a6e443991c978ad1d9e2150b1d35f4294 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | fec38267a2bf563bb1330c7845ffae34a643ad99 (diff) | |
i2c: riic: Clear NACK in tend isr
commit a71e2ac1f32097fbb2beab098687a7a95c84543e upstream.
The NACKF flag should be cleared in INTRIICNAKI interrupt processing as
description in HW manual.
This issue shows up quickly when PREEMPT_RT is applied and a device is
probed that is not plugged in (like a touchscreen controller). The result
is endless interrupts that halt system boot.
Fixes: 310c18a41450 ("i2c: riic: add driver")
Cc: stable@vger.kernel.org
Reported-by: Chien Nguyen <chien.nguyen.eb@rvc.renesas.com>
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
0 files changed, 0 insertions, 0 deletions