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PCI: apple: Enable clock gating

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These pokes are not required to make the PCIe port work, but it sounds
like this should save some power at least.

Link: https://lore.kernel.org/r/20211117141916.197192-1-marcan@marcan.st
Tested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Hector Martin 2021-11-17 23:19:16 +09:00 committed by Lorenzo Pieralisi
parent fa55b7dcdc
commit 754bb7ad29
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/controller/pcie-apple.c
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@ -553,6 +553,9 @@ static int apple_pcie_setup_port(struct apple_pcie *pcie,
return ret;
}
rmw_clear(PORT_REFCLK_CGDIS, port->base + PORT_REFCLK);
rmw_clear(PORT_APPCLK_CGDIS, port->base + PORT_APPCLK);
ret = apple_pcie_port_setup_irq(port);
if (ret)
return ret;