diff options
| author | Vidya Sagar <vidyas@nvidia.com> | 2019-09-05 16:15:50 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-09-20 14:22:30 -0500 |
| commit | f4ff4faf894d36b4aa243e241d4d47b4b8ba3c84 (patch) | |
| tree | f300eecd3ee5d7c68a27ec5b030a4c1ad2ca4220 /drivers/pci/controller | |
| parent | 7ed106d8fdfa4e6cbf9226f49ce921a681c9f240 (diff) | |
| download | linux-f4ff4faf894d36b4aa243e241d4d47b4b8ba3c84.tar.bz2 | |
PCI: tegra: Add support to configure sideband pins
Add support to configure sideband signal pins when the information is
present in the respective controller device-tree node.
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: fold in YueHaibing's fix for build error without CONFIG_PINCTRL;
https://lore.kernel.org/r/20190920014807.38288-1-yuehaibing@huawei.com]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/pci/controller')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-tegra194.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 6056414c07d4..0b870287f6b6 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -22,6 +22,7 @@ #include <linux/of_pci.h> #include <linux/pci.h> #include <linux/phy/phy.h> +#include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/random.h> @@ -1311,8 +1312,13 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie) if (ret < 0) { dev_err(dev, "Failed to get runtime sync for PCIe dev: %d\n", ret); - pm_runtime_disable(dev); - return ret; + goto fail_pm_get_sync; + } + + ret = pinctrl_pm_select_default_state(dev); + if (ret < 0) { + dev_err(dev, "Failed to configure sideband pins: %d\n", ret); + goto fail_pinctrl; } tegra_pcie_init_controller(pcie); @@ -1339,7 +1345,9 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie) fail_host_init: tegra_pcie_deinit_controller(pcie); +fail_pinctrl: pm_runtime_put_sync(dev); +fail_pm_get_sync: pm_runtime_disable(dev); return ret; } |