clear-pkgs-linux-iot-lts2018/1046-media-intel-ipu4-Generate-error-signal-only-for-faul.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: kgopala2 <karthik.l.gopalakrishnan@intel.com>
Date: Thu, 14 Mar 2019 02:13:23 +0800
Subject: [PATCH] media: intel-ipu4: Generate error signal only for faulty
 stream.

It is more appropriate to send error codes for faulty stream only
instead of all active streams.

Change-Id: Ic3494cc713819aa9c3f5d9815fbb266eb5292835
Tracked-On: OLINUX-2730
Tracked-On: PKT-1822
Signed-off-by: Bandi, Kushal <kushal.bandi@intel.com>
Signed-off-by: kgopala2 <karthik.l.gopalakrishnan@intel.com>
---
 drivers/media/pci/intel/ipu4/ipu4-isys-csi2.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/intel/ipu4/ipu4-isys-csi2.c b/drivers/media/pci/intel/ipu4/ipu4-isys-csi2.c
index 5292575db411..2c87487b2e81 100644
--- a/drivers/media/pci/intel/ipu4/ipu4-isys-csi2.c
+++ b/drivers/media/pci/intel/ipu4/ipu4-isys-csi2.c
@@ -54,6 +54,12 @@ static void trigger_error(struct ipu_isys_csi2 *csi2)
 	spin_unlock_irqrestore(&csi2->isys->lock, flags);
 }
 
+void ipu_isys_csi2_trigger_error(struct ipu_isys_csi2 *csi2)
+{
+	csi2->isys->reset_needed = true;
+	trigger_error(csi2);
+}
+
 void ipu_isys_csi2_trigger_error_all(struct ipu_isys *isys)
 {
 	int i;
@@ -339,7 +345,7 @@ void ipu_isys_csi2_error(struct ipu_isys_csi2 *csi2)
 		dev_err_ratelimited(&csi2->isys->adev->dev,
 				"csi2-%i received fatal error\n",
 				csi2->index);
-		ipu_isys_csi2_trigger_error_all(csi2->isys);
+		ipu_isys_csi2_trigger_error(csi2);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(errors); i++) {
-- 
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