[PATCH 5.15 116/135] PCI: aardvark: Disable common PHY when unbinding driver

Greg Kroah-Hartman
2022-05-10T14:18:50Z

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=UTF-8, Size: 889 bytes --]

From: Pali Rohár <pali@kernel.org>

commit fdbbe242c15a8f2cd0e3ad8a56cd0a447b771d0d upstream.

Disable the PCIe PHY when unbinding driver. This should save some power.

Link: https://lore.kernel.org/r/20211130172913.9727-12-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/pci/controller/pci-aardvark.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1734,6 +1734,9 @@ static int advk_pcie_remove(struct platf
for (i = 0; i < OB_WIN_COUNT; i++)
advk_pcie_disable_ob_win(pcie, i);

+ /* Disable phy */
+ advk_pcie_disable_phy(pcie);
+
return 0;
}