RE: [PATCH v2] drm/ast: Fix soft lockup

Hi Thomas, Thank you. Regards, Jammy Huang > > Hi, > > I've added a Fixes tag and pushed to patch into drm-misc-fixes. > > Best regards > Thomas > > Am 03.04.24 um 11:02 schrieb Jammy Huang: > > There is a while-loop in ast_dp_set_on_off() that could lead to > > infinite-loop. This is becaus

Re: [PATCH v2] drm/ast: Fix soft lockup

Hi, I've added a Fixes tag and pushed to patch into drm-misc-fixes. Best regards Thomas Am 03.04.24 um 11:02 schrieb Jammy Huang: There is a while-loop in ast_dp_set_on_off() that could lead to infinite-loop. This is because the register, VGACRI-Dx, checked in this API is a scratch register ac

Re: [PATCH v2] drm/ast: Fix soft lockup

Am 03.04.24 um 11:02 schrieb Jammy Huang: There is a while-loop in ast_dp_set_on_off() that could lead to infinite-loop. This is because the register, VGACRI-Dx, checked in this API is a scratch register actually controlled by a MCU, named DPMCU, in BMC. These scratch registers are protected

[PATCH v2] drm/ast: Fix soft lockup

There is a while-loop in ast_dp_set_on_off() that could lead to infinite-loop. This is because the register, VGACRI-Dx, checked in this API is a scratch register actually controlled by a MCU, named DPMCU, in BMC. These scratch registers are protected by scu-lock. If suc-lock is not off, DPMCU can