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From: Philipp Zabel <p.zabel@pengutronix.de>
To: dri-devel@lists.freedesktop.org
Cc: kernel@pengutronix.de
Subject: [PATCH 09/10] gpu: ipu-v3: initially clear all interrupts
Date: Wed, 19 Oct 2016 12:21:16 +0200	[thread overview]
Message-ID: <1476872477-29493-9-git-send-email-p.zabel@pengutronix.de> (raw)
In-Reply-To: <1476872477-29493-1-git-send-email-p.zabel@pengutronix.de>

If we want to stop resetting the IPU in the future, masking all
interrupts before registering the irq handlers will not be enough to
avoid spurious interrupts. We also have to clear them.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
---
 drivers/gpu/ipu-v3/ipu-common.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index b7d7bd6..97218af 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -1286,8 +1286,11 @@ static int ipu_irq_init(struct ipu_soc *ipu)
 		return ret;
 	}
 
-	for (i = 0; i < IPU_NUM_IRQS; i += 32)
+	/* Mask and clear all interrupts */
+	for (i = 0; i < IPU_NUM_IRQS; i += 32) {
 		ipu_cm_write(ipu, 0, IPU_INT_CTRL(i / 32));
+		ipu_cm_write(ipu, ~unused[i / 32], IPU_INT_STAT(i / 32));
+	}
 
 	for (i = 0; i < IPU_NUM_IRQS; i += 32) {
 		gc = irq_get_domain_generic_chip(ipu->domain, i);
-- 
2.9.3

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  parent reply	other threads:[~2016-10-19 10:21 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-19 10:21 [PATCH 01/10] drm/imx: ipuv3-plane: make sure x/y offsets are even in case of chroma subsampling Philipp Zabel
2016-10-19 10:21 ` [PATCH 02/10] drm/imx: ipuv3-plane: disable local alpha for planes without alpha channel Philipp Zabel
2016-10-19 10:21 ` [PATCH 03/10] drm/imx: ipuv3-plane: request modeset if plane offsets changed Philipp Zabel
2016-10-19 10:21 ` [PATCH 04/10] drm/imx: ipuv3-plane: merge ipu_plane_atomic_set_base into atomic_update Philipp Zabel
2016-10-19 10:21 ` [PATCH 05/10] drm/imx: ipuv3-plane: let drm_plane_state_to_ubo/vbo handle chroma subsampling other than 4:2:0 Philipp Zabel
2016-10-20  6:19   ` Ying Liu
2016-10-19 10:21 ` [PATCH 06/10] gpu: ipu-cpmem: remove unused ipu_cpmem_set_yuv_planar function Philipp Zabel
2016-10-20  6:20   ` Ying Liu
2016-10-19 10:21 ` [PATCH 07/10] gpu: ipu-v3: add YUV 4:4:4 support Philipp Zabel
2016-10-19 10:21 ` [PATCH 08/10] drm/imx: ipuv3-plane: add support for YUV 4:2:2 and 4:4:4, NV12, and NV16 formats Philipp Zabel
2016-10-20  6:21   ` Ying Liu
2016-10-19 10:21 ` Philipp Zabel [this message]
2016-10-19 10:21 ` [PATCH 10/10] drm/imx: ipuv3-plane: use drm_plane_helper_check_state, clipped coordinates Philipp Zabel
2016-10-19 10:31   ` Ville Syrjälä
2016-10-19 10:46     ` Philipp Zabel
2016-10-20  7:53   ` Ying Liu
2016-10-20  8:41     ` Ville Syrjälä
2016-10-20  8:51       ` Ying Liu
2016-10-20 13:20         ` Ville Syrjälä
2016-10-20 13:29         ` Philipp Zabel
2016-10-21  5:45           ` Ying Liu
2016-10-21  8:18             ` Philipp Zabel
2016-10-21  8:49               ` Ying Liu
2016-10-24 11:50                 ` Philipp Zabel
2016-10-25  2:59                   ` Ying Liu
2016-10-20  6:18 ` [PATCH 01/10] drm/imx: ipuv3-plane: make sure x/y offsets are even in case of chroma subsampling Ying Liu

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