switchtec: read already defined odb register for flush WC buffer

wesleywesley · wesleywesley · commit 96afe9c75827 · 2018-12-06T20:28:34.000+08:00
For forward compatible, read already defined but no side effects odb
register instead of reserved register for flush WC buffer

Suggested-by: Logan Gunthorpe &lt;logang@deltatee.com&gt;
Signed-off-by: Wesley Sheng &lt;wesley.sheng@microchip.com&gt;
diff --git a/switchtec.c b/switchtec.c
@@ -136,7 +136,7 @@ static void flush_wc_buf(struct switchtec_dev *stdev)
 
 	mmio_dbmsg = (void __iomem *)stdev->mmio_ntb +
 		SWITCHTEC_NTB_REG_DBMSG_OFFSET;
-	ioread32(&mmio_dbmsg->reserved1[0]);
+	ioread32(&mmio_dbmsg->odb);
 }
 
 static void mrpc_cmd_submit(struct switchtec_dev *stdev)

Original file line number	Diff line number	Diff line change
`@@ -136,7 +136,7 @@ static void flush_wc_buf(struct switchtec_dev *stdev)`
`136`	`136`
`137`	`137`	`mmio_dbmsg = (void __iomem *)stdev->mmio_ntb +`
`138`	`138`	`SWITCHTEC_NTB_REG_DBMSG_OFFSET;`
`139`		`- ioread32(&mmio_dbmsg->reserved1[0]);`
	`139`	`+ ioread32(&mmio_dbmsg->odb);`
`140`	`140`	`}`
`141`	`141`
`142`	`142`	`static void mrpc_cmd_submit(struct switchtec_dev *stdev)`