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drm/imx: enable/disable PRG on CRTC enable/disable 

On i.MX6 QuadPlus the PRG needs to be clocked in order to pass
through the data access requests from the IDMAC. This call is a
no-op for other all other SoCs.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Lucas Stach 2017-03-08 12:13:20 +01:00 committed by Philipp Zabel
parent 320a89ad7b
commit e0fb7dd2f0
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/imx/ipuv3-crtc.c
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@ -55,6 +55,7 @@ static void ipu_crtc_enable(struct drm_crtc *crtc)
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
ipu_prg_enable(ipu);
ipu_dc_enable(ipu);
ipu_dc_enable_channel(ipu_crtc->dc);
ipu_di_enable(ipu_crtc->di);
@ -95,6 +96,7 @@ static void ipu_crtc_atomic_disable(struct drm_crtc *crtc,
*/
ipu_crtc_disable_planes(ipu_crtc, old_crtc_state);
ipu_dc_disable(ipu);
ipu_prg_disable(ipu);
spin_lock_irq(&crtc->dev->event_lock);
if (crtc->state->event) {