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Commit f5bce430 authored by Stefan Agner's avatar Stefan Agner
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drm/fsl-dcu: disable vblank events on CRTC disable 



Disable vblank events when CRTC gets disabled. This avoids an
external abort when entering suspend while disable_timer is still
active: On resume the timer might fire immediately and cause a
register access in fsl_dcu_drm_disable_vblank before clocks get
enabled by the resume function.

Signed-off-by: default avatarStefan Agner <stefan@agner.ch>
parent a8db4324

drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c

+4 −0
Original line number Diff line number Diff line
@@ -43,6 +43,8 @@ static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) 
	struct drm_device *dev = crtc->dev;

	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;



	drm_crtc_vblank_off(crtc);



	regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE,

			   DCU_MODE_DCU_MODE_MASK,

			   DCU_MODE_DCU_MODE(DCU_MODE_OFF));
@@ -60,6 +62,8 @@ static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) 
			   DCU_MODE_DCU_MODE(DCU_MODE_NORMAL));

	regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE,

		     DCU_UPDATE_MODE_READREG);



	drm_crtc_vblank_on(crtc);

}



static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)