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Commit 5c8d7171 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/kms: add crtc disable function 



More explicit than dpms. Same as the encoder disable function.

Need this to explicity disconnect plls from crtcs for reuse when you
plls:crtcs ratio isn't 1:1.

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent a907a2e7

drivers/gpu/drm/drm_crtc_helper.c

+4 −1
Original line number Diff line number Diff line
@@ -241,7 +241,10 @@ void drm_helper_disable_unused_functions(struct drm_device *dev) 
		struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;

		crtc->enabled = drm_helper_crtc_in_use(crtc);

		if (!crtc->enabled) {

			crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);

			if (crtc_funcs->disable)

				(*crtc_funcs->disable)(crtc);

			else

				(*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF);

			crtc->fb = NULL;

		}

	}

include/drm/drm_crtc_helper.h

+3 −0
Original line number Diff line number Diff line
@@ -63,6 +63,9 @@ struct drm_crtc_helper_funcs { 


	/* reload the current crtc LUT */

	void (*load_lut)(struct drm_crtc *crtc);



	/* disable crtc when not in use - more explicit than dpms off */

	void (*disable)(struct drm_crtc *crtc);

};



struct drm_encoder_helper_funcs {