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From:   =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>
To:     linux-pci@vger.kernel.org, Bjorn Helgaas <helgaas@kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Rob Herring <robh@kernel.org>,
        =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= <kw@linux.com>,
        Lukas Wunner <lukas@wunner.de>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
        linux-kernel@vger.kernel.org, Kalle Valo <kvalo@kernel.org>,
        Jeff Johnson <quic_jjohnson@quicinc.com>,
        ath10k@lists.infradead.org, linux-wireless@vger.kernel.org
Cc:     ath11k@lists.infradead.org, ath12k@lists.infradead.org,
        intel-wired-lan@lists.osuosl.org,
        linux-arm-kernel@lists.infradead.org,
        linux-bluetooth@vger.kernel.org,
        linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org,
        netdev@vger.kernel.org,
        =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>
Subject: [PATCH v2 09/13] wifi: ath10k: Use pci_disable/enable_link_state()
Date:   Mon, 18 Sep 2023 16:10:59 +0300
Message-Id: <20230918131103.24119-10-ilpo.jarvinen@linux.intel.com>
In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com>
References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com>
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Precedence: bulk

ath10k driver adjusts ASPM state itself which leaves ASPM service
driver in PCI core unaware of the link state changes the driver
implemented.

Call pci_disable_link_state() and pci_enable_link_state() instead of
adjusting ASPMC field in LNKCTL directly in the driver and let PCI core
handle the ASPM state management.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 23f366221939..64f7133ce122 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1963,9 +1963,8 @@ static int ath10k_pci_hif_start(struct ath10k *ar)
 	ath10k_pci_irq_enable(ar);
 	ath10k_pci_rx_post(ar);
 
-	pcie_capability_clear_and_set_word(ar_pci->pdev, PCI_EXP_LNKCTL,
-					   PCI_EXP_LNKCTL_ASPMC,
-					   ar_pci->link_ctl & PCI_EXP_LNKCTL_ASPMC);
+	pci_enable_link_state(ar_pci->pdev, ar_pci->link_ctl &
+			      (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1));
 
 	return 0;
 }
@@ -2822,8 +2821,7 @@ static int ath10k_pci_hif_power_up(struct ath10k *ar,
 
 	pcie_capability_read_word(ar_pci->pdev, PCI_EXP_LNKCTL,
 				  &ar_pci->link_ctl);
-	pcie_capability_clear_word(ar_pci->pdev, PCI_EXP_LNKCTL,
-				   PCI_EXP_LNKCTL_ASPMC);
+	pci_disable_link_state(ar_pci->pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
 
 	/*
 	 * Bring the target up cleanly.
-- 
2.30.2