blob: fc4cea721823938db37fe580a4bbf2dbf8e201d7 [file] [log] [blame]
From 5e24dddfdae5b1002cc90a03282298e611e44295 Mon Sep 17 00:00:00 2001
From: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
Date: Tue, 20 Mar 2018 22:04:14 +0100
Subject: [PATCH 1158/1795] i2c: rcar: fix mask value of prohibited bit
According to documentation, Bit 7 of ICMSR is unused and 0 should be
written to it. Fix the mask accordingly.
Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
[wsa: edited commit message]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
(cherry picked from commit a1de3253a8840bf373e7c6330f21b7807c6c0536)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/i2c/busses/i2c-rcar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 4159ebcec2bb..c6915b835396 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -102,8 +102,8 @@
#define RCAR_IRQ_RECV (MNR | MAL | MST | MAT | MDR)
#define RCAR_IRQ_STOP (MST)
-#define RCAR_IRQ_ACK_SEND (~(MAT | MDE) & 0xFF)
-#define RCAR_IRQ_ACK_RECV (~(MAT | MDR) & 0xFF)
+#define RCAR_IRQ_ACK_SEND (~(MAT | MDE) & 0x7F)
+#define RCAR_IRQ_ACK_RECV (~(MAT | MDR) & 0x7F)
#define ID_LAST_MSG (1 << 0)
#define ID_FIRST_MSG (1 << 1)
--
2.19.0