target/linux/generic/backport-5.10/850-v5.17-0011-PCI-aardvark-Disable-common-PHY-when-unbinding-drive.patch

   1 From fdbbe242c15a8f2cd0e3ad8a56cd0a447b771d0d Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
   3 Date: Tue, 30 Nov 2021 18:29:13 +0100
   4 Subject: [PATCH] PCI: aardvark: Disable common PHY when unbinding driver
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 Disable the PCIe PHY when unbinding driver. This should save some power.
  10
  11 Link: https://lore.kernel.org/r/20211130172913.9727-12-kabel@kernel.org
  12 Signed-off-by: Pali Rohár <pali@kernel.org>
  13 Signed-off-by: Marek Behún <kabel@kernel.org>
  14 Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
  15 ---
  16  drivers/pci/controller/pci-aardvark.c | 3 +++
  17  1 file changed, 3 insertions(+)
  18
  19 diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
  20 index e5c88f1c177b..2a82c4652c28 100644
  21 --- a/drivers/pci/controller/pci-aardvark.c
  22 +++ b/drivers/pci/controller/pci-aardvark.c
  23 @@ -1750,6 +1750,9 @@ static int advk_pcie_remove(struct platform_device *pdev)
  24         for (i = 0; i < OB_WIN_COUNT; i++)
  25                 advk_pcie_disable_ob_win(pcie, i);
  26
  27 +       /* Disable phy */
  28 +       advk_pcie_disable_phy(pcie);
  29 +
  30         return 0;
  31  }
  32
  33 --
  34 2.34.1
  35