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authorJonathan McDowell <noodles@earth.li>2016-05-14 19:01:26 +0200
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-09 16:47:28 +0200
commitbbdb34c90aeb8b2253eae88029788ebe1d7f2fd4 (patch)
treef7cad9804a8e1cad6944802221c6065df0382a62
parent[media] media: dvb_ringbuffer: Add memory barriers (diff)
downloadlinux-bbdb34c90aeb8b2253eae88029788ebe1d7f2fd4.tar.xz
linux-bbdb34c90aeb8b2253eae88029788ebe1d7f2fd4.zip
[media] Fix RC5 decoding with Fintek CIR chipset
Fix RC5 decoding with Fintek CIR chipset Commit e87b540be2dd02552fb9244d50ae8b4e4619a34b tightened up the RC5 decoding by adding a check for trailing silence to ensure a valid RC5 command had been received. Unfortunately the trailer length checked was 10 units and the Fintek CIR device does not want to provide details of a space longer than 6350us. This meant that RC5 remotes working on a Fintek setup on 3.16 failed on 3.17 and later. Fix this by shortening the trailer check to 6 units (allowing for a previous space in the received remote command). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=117221 Signed-off-by: Jonathan McDowell <noodles@earth.li> Cc: stable@vger.kernel.org Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
-rw-r--r--drivers/media/rc/ir-rc5-decoder.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/rc/ir-rc5-decoder.c b/drivers/media/rc/ir-rc5-decoder.c
index 6ffe776abf6b..a0fd4e6b2155 100644
--- a/drivers/media/rc/ir-rc5-decoder.c
+++ b/drivers/media/rc/ir-rc5-decoder.c
@@ -29,7 +29,7 @@
#define RC5_BIT_START (1 * RC5_UNIT)
#define RC5_BIT_END (1 * RC5_UNIT)
#define RC5X_SPACE (4 * RC5_UNIT)
-#define RC5_TRAILER (10 * RC5_UNIT) /* In reality, approx 100 */
+#define RC5_TRAILER (6 * RC5_UNIT) /* In reality, approx 100 */
enum rc5_state {
STATE_INACTIVE,