V4L/DVB (9510): cx18: Fix write retries for registers that always change - part 2.

cx18: Fix write retries for registers that always change - part 2.
Some registers, especially interrupt related ones, will never read
back the value just written.  Modified interrupt register readback
checks to make sure the intended effect was achieved.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c
index 87f7c8e2c181..851a905376bb 100644
--- a/drivers/media/video/cx18/cx18-mailbox.c
+++ b/drivers/media/video/cx18/cx18-mailbox.c
@@ -176,7 +176,7 @@ long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb)
 
         cx18_setup_page(cx, SCB_OFFSET);
         cx18_write_sync(cx, mb->request, &ack_mb->ack);
-        cx18_write_reg_noretry(cx, ack_irq, SW2_INT_SET);
+        cx18_write_reg_expect(cx, ack_irq, SW2_INT_SET, ack_irq, ack_irq);
         return 0;
 }
 
@@ -225,7 +225,7 @@ static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[])
         }
         if (info->flags & API_FAST)
                 timeout /= 2;
-        cx18_write_reg_noretry(cx, irq, SW1_INT_SET);
+        cx18_write_reg_expect(cx, irq, SW1_INT_SET, irq, irq);
 
         while (!sig && cx18_readl(cx, &mb->ack) != cx18_readl(cx, &mb->request)
                && cnt < 660) {