diff options
| author |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-10-21 11:45:18 +0100 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2021-11-04 14:34:23 -0500 |
| commit | 5b1e8c00afc32df8b4cf39a5c6cc7378a924abb7 (patch) | |
| tree | 076d00a786d55da6e5452b26d1bb1ab55069f9c7 /drivers/pci | |
| parent | PCI: kirin: Move the power-off code to a common routine (diff) | |
| download | linux-dev-5b1e8c00afc32df8b4cf39a5c6cc7378a924abb7.tar.xz linux-dev-5b1e8c00afc32df8b4cf39a5c6cc7378a924abb7.zip | |
PCI: kirin: Disable clkreq during poweroff sequence
The logic at kirin_pcie_gpio_request() enables some clkreq GPIO lines.
Disable them during power-off.
Link: https://lore.kernel.org/r/f403e590843de1a581cade2d534d34715706f54e.1634812676.git.mchehab+huawei@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Xiaowei Song <songxiaowei@hisilicon.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-kirin.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c index 5ebdf1b4b8d5..1878c91a33a3 100644 --- a/drivers/pci/controller/dwc/pcie-kirin.c +++ b/drivers/pci/controller/dwc/pcie-kirin.c @@ -688,6 +688,9 @@ static int kirin_pcie_power_off(struct kirin_pcie *kirin_pcie) if (kirin_pcie->type == PCIE_KIRIN_INTERNAL_PHY) return hi3660_pcie_phy_power_off(kirin_pcie); + for (i = 0; i < kirin_pcie->n_gpio_clkreq; i++) + gpio_direction_output(kirin_pcie->gpio_id_clkreq[i], 1); + phy_power_off(kirin_pcie->phy); phy_exit(kirin_pcie->phy); |