linux-kernel - [PATCH 5.2 032/124] bus: ti-sysc: Fix using configured sysc mask value

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Message-Id: <20190919214820.195703927@linuxfoundation.org>
Date:   Fri, 20 Sep 2019 00:02:00 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Keerthy <j-keerthy@...com>,
        Tony Lindgren <tony@...mide.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 032/124] bus: ti-sysc: Fix using configured sysc mask value

From: Tony Lindgren <tony@...mide.com>

[ Upstream commit e212abd452a4af3174fcd469d46656f83e135a19 ]

We have cases where there are no softreset bits like with am335x lcdc.
In that case ti,sysc-mask = <0> needs to be handled properly.

Tested-by: Keerthy <j-keerthy@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/bus/ti-sysc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index f5176a5d38cd9..56a2399f341e8 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1388,10 +1388,7 @@ static int sysc_init_sysc_mask(struct sysc *ddata)
 	if (error)
 		return 0;
 
-	if (val)
-		ddata->cfg.sysc_val = val & ddata->cap->sysc_mask;
-	else
-		ddata->cfg.sysc_val = ddata->cap->sysc_mask;
+	ddata->cfg.sysc_val = val & ddata->cap->sysc_mask;
 
 	return 0;
 }
-- 
2.20.1