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From: Rajvi Jingar <rajvi.jingar@linux.intel.com>
To: rafael.j.wysocki@intel.com, bhelgaas@google.com
Cc: rajvi.jingar@linux.intel.com, david.e.box@linux.intel.com,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org
Subject: [PATCH 2/2] PCI/PTM: fix in pci_disable_ptm()
Date: Thu,  7 Jul 2022 10:22:05 -0700	[thread overview]
Message-ID: <20220707172205.3205110-2-rajvi.jingar@linux.intel.com> (raw)
In-Reply-To: <20220707172205.3205110-1-rajvi.jingar@linux.intel.com>

Set ptm_enabled from 'struct pci_dev' to 0 in pci_ptm_disable() to
save the disabled PTM state for the device.

Fixes: a697f072f5da ("PCI: Disable PTM during suspend to save power")
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
---
 drivers/pci/pcie/ptm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/pcie/ptm.c b/drivers/pci/pcie/ptm.c
index 368a254e3124..746e29779c27 100644
--- a/drivers/pci/pcie/ptm.c
+++ b/drivers/pci/pcie/ptm.c
@@ -44,6 +44,7 @@ void pci_disable_ptm(struct pci_dev *dev)
 	pci_read_config_word(dev, ptm + PCI_PTM_CTRL, &ctrl);
 	ctrl &= ~(PCI_PTM_CTRL_ENABLE | PCI_PTM_CTRL_ROOT);
 	pci_write_config_word(dev, ptm + PCI_PTM_CTRL, ctrl);
+	dev->ptm_enabled = 0;
 }
 
 void pci_save_ptm_state(struct pci_dev *dev)
-- 
2.25.1


  reply	other threads:[~2022-07-07 17:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-07 17:22 [PATCH 1/2] PCI/PM: refactor pci_pm_suspend_noirq() Rajvi Jingar
2022-07-07 17:22 ` Rajvi Jingar [this message]
2022-07-07 18:27   ` [PATCH 2/2] PCI/PTM: fix in pci_disable_ptm() Rafael J. Wysocki
2022-07-07 18:32     ` Rafael J. Wysocki

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