diff options
| author | Hector Martin <marcan@marcan.st> | 2021-11-17 23:19:16 +0900 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2021-11-30 16:43:15 +0000 |
| commit | 754bb7ad29566b2789cafb6b378b788266d1f131 (patch) | |
| tree | 2efc4c018bbf9efe8f8aa4cc8fd50bb193639b72 | |
| parent | fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf (diff) | |
PCI: apple: Enable clock gating
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>
| -rw-r--r-- | drivers/pci/controller/pcie-apple.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 1bf4d75b61be..fa5e9c31d80b 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -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; |