From 6d2061b981af165d3e45462e0804b5a1f2f4c7bc Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@broadcom.com>
Date: Tue, 1 Aug 2017 16:05:52 +0530
Subject: [PATCH] mailbox: bcm-flexrm-mailbox: Fix mask used in CMPL_START_ADDR_VALUE()
Git-commit: 6d2061b981af165d3e45462e0804b5a1f2f4c7bc
Patch-mainline: v4.14-rc1
References: bsc#1051510
The mask used in CMPL_START_ADDR_VALUE() should be 27bits instead of
26bits. This incorrect mask was causing completion writes to 40bits
physical address fail.
This patch fixes mask used in CMPL_START_ADDR_VALUE() macro.
Fixes: dbc049eee730 ("mailbox: Add driver for Broadcom FlexRM
ring manager")
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/mailbox/bcm-flexrm-mailbox.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index a0be2ea925fb..46ad305c24c1 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -97,7 +97,7 @@
/* Register RING_CMPL_START_ADDR fields */
#define CMPL_START_ADDR_VALUE(pa) \
- ((u32)((((u64)(pa)) >> RING_CMPL_ALIGN_ORDER) & 0x03ffffff))
+ ((u32)((((u64)(pa)) >> RING_CMPL_ALIGN_ORDER) & 0x07ffffff))
/* Register RING_CONTROL fields */
#define CONTROL_MASK_DISABLE_CONTROL 12
--
2.18.0