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* [PATCH] ACPI: CPPC: Support PCC with interrupt flag
@ 2016-07-21 21:07 Hoan Tran
  2016-08-30 18:20 ` Hoan Tran
  0 siblings, 1 reply; 6+ messages in thread
From: Hoan Tran @ 2016-07-21 21:07 UTC (permalink / raw)
  To: Rafael J. Wysocki, Len Brown, pprakash, Ashwin Chaugule
  Cc: linux-acpi, linux-kernel, lho, Duc Dang, Hoan Tran

For PCC mailbox with interrupt flag, CPPC should call mbox_chan_txdone()
function to notify the mailbox framework about TX completion.

Signed-off-by: Hoan Tran <hotran@apm.com>
---
This patch is tested on top and depends on patch[1]:
[1] http://www.spinics.net/lists/linux-acpi/msg66041.html
 - [PATCH v3] mailbox: pcc: Support HW-Reduced Communication Subspace type 2

 drivers/acpi/cppc_acpi.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 2e98173..19606aa 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -191,7 +191,11 @@ static int send_pcc_cmd(u16 cmd)
 			last_cmd_cmpl_time = ktime_get();
 	}
 
-	mbox_client_txdone(pcc_channel, ret);
+	if (pcc_channel->mbox->txdone_irq)
+		mbox_chan_txdone(pcc_channel, ret);
+	else
+		mbox_client_txdone(pcc_channel, ret);
+
 	return ret;
 }
 
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2016-09-14 17:55 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-07-21 21:07 [PATCH] ACPI: CPPC: Support PCC with interrupt flag Hoan Tran
2016-08-30 18:20 ` Hoan Tran
2016-09-14 15:45   ` Hoan Tran
2016-09-14 16:49     ` Rafael J. Wysocki
2016-09-14 17:55       ` Hoan Tran
2016-09-14 15:45   ` Prakash, Prashanth

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