diff options
Diffstat (limited to 'drivers/pci/host/pcie-xilinx-nwl.c')
| -rw-r--r-- | drivers/pci/host/pcie-xilinx-nwl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c index 981a5195686f..6812a1b49fa8 100644 --- a/drivers/pci/host/pcie-xilinx-nwl.c +++ b/drivers/pci/host/pcie-xilinx-nwl.c @@ -10,6 +10,7 @@ * (at your option) any later version. */ +#include <linux/clk.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -171,6 +172,7 @@ struct nwl_pcie { u8 root_busno; struct nwl_msi msi; struct irq_domain *legacy_irq_domain; + struct clk *clk; raw_spinlock_t leg_mask_lock; }; @@ -852,6 +854,16 @@ static int nwl_pcie_probe(struct platform_device *pdev) return err; } + pcie->clk = devm_clk_get(dev, NULL); + if (IS_ERR(pcie->clk)) + return PTR_ERR(pcie->clk); + + err = clk_prepare_enable(pcie->clk); + if (err) { + dev_err(dev, "can't enable PCIe ref clock\n"); + return err; + } + err = nwl_pcie_bridge_init(pcie); if (err) { dev_err(dev, "HW Initialization failed\n"); |