linux-kernel - [PATCH v3 2/5] pata_bk3710: disable IORDY Timer on chipset initialization

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Message-id: <1490206862-26065-3-git-send-email-b.zolnierkie@samsung.com>
Date:   Wed, 22 Mar 2017 19:20:59 +0100
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     Sekhar Nori <nsekhar@...com>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Kevin Hilman <khilman@...libre.com>,
        Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@....linux.org.uk>,
        Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
        linux-ide@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, b.zolnierkie@...sung.com
Subject: [PATCH v3 2/5] pata_bk3710: disable IORDY Timer on chipset
 initialization

Disable IORDY Timer as the driver doesn't handle IORDY Timer
interrupt anyway.

Suggested-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
 drivers/ata/pata_bk3710.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_bk3710.c b/drivers/ata/pata_bk3710.c
index 1a1223f..f22e4bf 100644
--- a/drivers/ata/pata_bk3710.c
+++ b/drivers/ata/pata_bk3710.c
@@ -264,9 +264,9 @@ static void pata_bk3710_chipinit(void __iomem *base)
 
 	/*
 	 * IORDYTMP IORDY Timer for Primary Register
-	 * (ATA_IORDYTMP_IORDYTMP     , 0xffff  )
+	 * (ATA_IORDYTMP_IORDYTMP	, DISABLE)
 	 */
-	iowrite32(0xFFFF, base + BK3710_IORDYTMP);
+	iowrite32(0, base + BK3710_IORDYTMP);
 
 	/*
 	 * Configure BMISP Register
-- 
1.9.1