[PATCH v2 6/8] imx-drm: imx-dp: When disabling the DP foreground channel, wait until the DP background channel is finished before disabling the IDMAC channel

Signed-off-by: Philipp Zabel p.zabel@pengutronix.de --- drivers/staging/imx-drm/ipu-v3/ipu-dp.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c index 6980fa1..d90f82a 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c @@ -277,6 +277,9 @@ void ipu_dp_disable_channel(struct ipu_dp *dp) writel(0, flow->base + DP_FG_POS); ipu_srm_dp_sync_update(priv->ipu);

+ if (ipu_idmac_channel_busy(priv->ipu, IPUV3_CHANNEL_MEM_BG_SYNC)) + ipu_wait_interrupt(priv->ipu, IPU_IRQ_DP_SF_END, 50); + mutex_unlock(&priv->mutex); } EXPORT_SYMBOL_GPL(ipu_dp_disable_channel);