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From: Yu Wang <yyuwang@codeaurora.org>
To: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org, Yu Wang <yyuwang@codeaurora.org>
Subject: [PATCH] ath10k: fix S5 power consumption issue for QCA9377
Date: Tue, 15 Jan 2019 14:31:07 +0800	[thread overview]
Message-ID: <1547533867-15131-1-git-send-email-yyuwang@codeaurora.org> (raw)

After system entering S5 (shut down but system still
providing power to QCA9377) on Ubuntu platform, power
consumption of QCA9377 is 69mA, which is too high.
The root cause is pci_soft_reset is not set for QCA9377
during pci probe.
To fix this issue, set 'pci_soft_reset' to 'th10k_pci_warm_reset',
and then the power consumption drops to a normal value(10mA).
Verified on Dell Ubuntu platform with firmware:
WLAN.TF.1.0-00002-QCATFSWPZ-5

Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 01b4edb..0a4ce98 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3554,7 +3554,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	case QCA9377_1_0_DEVICE_ID:
 		hw_rev = ATH10K_HW_QCA9377;
 		pci_ps = true;
-		pci_soft_reset = NULL;
+		pci_soft_reset = ath10k_pci_warm_reset;
 		pci_hard_reset = ath10k_pci_qca6174_chip_reset;
 		targ_cpu_to_ce_addr = ath10k_pci_qca6174_targ_cpu_to_ce_addr;
 		break;
-- 
1.9.1


WARNING: multiple messages have this Message-ID (diff)
From: Yu Wang <yyuwang@codeaurora.org>
To: ath10k@lists.infradead.org
Cc: Yu Wang <yyuwang@codeaurora.org>, linux-wireless@vger.kernel.org
Subject: [PATCH] ath10k: fix S5 power consumption issue for QCA9377
Date: Tue, 15 Jan 2019 14:31:07 +0800	[thread overview]
Message-ID: <1547533867-15131-1-git-send-email-yyuwang@codeaurora.org> (raw)

After system entering S5 (shut down but system still
providing power to QCA9377) on Ubuntu platform, power
consumption of QCA9377 is 69mA, which is too high.
The root cause is pci_soft_reset is not set for QCA9377
during pci probe.
To fix this issue, set 'pci_soft_reset' to 'th10k_pci_warm_reset',
and then the power consumption drops to a normal value(10mA).
Verified on Dell Ubuntu platform with firmware:
WLAN.TF.1.0-00002-QCATFSWPZ-5

Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 01b4edb..0a4ce98 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3554,7 +3554,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	case QCA9377_1_0_DEVICE_ID:
 		hw_rev = ATH10K_HW_QCA9377;
 		pci_ps = true;
-		pci_soft_reset = NULL;
+		pci_soft_reset = ath10k_pci_warm_reset;
 		pci_hard_reset = ath10k_pci_qca6174_chip_reset;
 		targ_cpu_to_ce_addr = ath10k_pci_qca6174_targ_cpu_to_ce_addr;
 		break;
-- 
1.9.1


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             reply	other threads:[~2019-01-15  6:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-15  6:31 Yu Wang [this message]
2019-01-15  6:31 ` [PATCH] ath10k: fix S5 power consumption issue for QCA9377 Yu Wang
2019-01-15  6:36 ` Robert Chang
2019-01-15  6:36   ` Robert Chang
2019-02-04 15:51 ` Kalle Valo
2019-02-04 15:51 ` Kalle Valo

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