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[v3,3/5] pata_bk3710: clear status bits of BMISP on chipset initialization

Message ID 1490206862-26065-4-git-send-email-b.zolnierkie@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Bartlomiej Zolnierkiewicz March 22, 2017, 6:21 p.m. UTC 
Clear IORDYINT, INTRSTAT and DMAERROR bits of BMISP register
(value '1' needs to be written to the bit to clear it).

Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 drivers/ata/pata_bk3710.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Sergei Shtylyov March 23, 2017, 10:39 a.m. UTC | #1 
On 3/22/2017 9:21 PM, Bartlomiej Zolnierkiewicz wrote:

> Clear IORDYINT, INTRSTAT and DMAERROR bits of BMISP register
> (value '1' needs to be written to the bit to clear it).
>
> Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[...]

Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

MBR, Sergei
diff mbox

Patch

diff --git a/drivers/ata/pata_bk3710.c b/drivers/ata/pata_bk3710.c
index f22e4bf..6c3bd5f 100644
--- a/drivers/ata/pata_bk3710.c
+++ b/drivers/ata/pata_bk3710.c
@@ -276,7 +276,7 @@  static void pata_bk3710_chipinit(void __iomem *base)
 	 * (ATA_BMISP_INTRSTAT	, CLEAR)	|
 	 * (ATA_BMISP_DMAERROR	, CLEAR)
 	 */
-	iowrite16(0, base + BK3710_BMISP);
+	iowrite16(0xE, base + BK3710_BMISP);
 
 	pata_bk3710_setpiomode(base, NULL, 0, 600, 0);
 	pata_bk3710_setpiomode(base, NULL, 1, 600, 0);