Merge branch 'pci/controller/dwc-ep'

- Use FIELD_GET() to simplify extracting register values (Hans Zhang)

* pci/controller/dwc-ep:
  PCI: dwc: ep: Fix errno typo
  PCI: dwc: ep: Use FIELD_GET() where applicable

Author: bjorn-helgaas

drivers/pci/controller/dwc/pcie-designware-ep.c

@@ -256,11 +256,11 @@ static unsigned int dw_pcie_ep_get_rebar_offset(struct dw_pcie *pci,
 		return offset;
 
 	reg = dw_pcie_readl_dbi(pci, offset + PCI_REBAR_CTRL);
-	nbars = (reg & PCI_REBAR_CTRL_NBAR_MASK) >> PCI_REBAR_CTRL_NBAR_SHIFT;
+	nbars = FIELD_GET(PCI_REBAR_CTRL_NBAR_MASK, reg);
 
 	for (i = 0; i < nbars; i++, offset += PCI_REBAR_CTRL) {
 		reg = dw_pcie_readl_dbi(pci, offset + PCI_REBAR_CTRL);
-		bar_index = reg & PCI_REBAR_CTRL_BAR_IDX;
+		bar_index = FIELD_GET(PCI_REBAR_CTRL_BAR_IDX, reg);
 		if (bar_index == bar)
 			return offset;
 	}
@@ -672,7 +672,7 @@ static const struct pci_epc_ops epc_ops = {
  * @ep: DWC EP device
  * @func_no: Function number of the endpoint
  *
- * Return: 0 if success, errono otherwise.
+ * Return: 0 if success, errno otherwise.
  */
 int dw_pcie_ep_raise_intx_irq(struct dw_pcie_ep *ep, u8 func_no)
 {
@@ -691,7 +691,7 @@ EXPORT_SYMBOL_GPL(dw_pcie_ep_raise_intx_irq);
  * @func_no: Function number of the endpoint
  * @interrupt_num: Interrupt number to be raised
  *
- * Return: 0 if success, errono otherwise.
+ * Return: 0 if success, errno otherwise.
  */
 int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
 			     u8 interrupt_num)
@@ -876,8 +876,7 @@ static void dw_pcie_ep_init_non_sticky_registers(struct dw_pcie *pci)
 
 	if (offset) {
 		reg = dw_pcie_readl_dbi(pci, offset + PCI_REBAR_CTRL);
-		nbars = (reg & PCI_REBAR_CTRL_NBAR_MASK) >>
-			PCI_REBAR_CTRL_NBAR_SHIFT;
+		nbars = FIELD_GET(PCI_REBAR_CTRL_NBAR_MASK, reg);
 
 		/*
 		 * PCIe r6.0, sec 7.8.6.2 require us to support at least one
@@ -898,7 +897,7 @@ static void dw_pcie_ep_init_non_sticky_registers(struct dw_pcie *pci)
 			 * is why RESBAR_CAP_REG is written here.
 			 */
 			val = dw_pcie_readl_dbi(pci, offset + PCI_REBAR_CTRL);
-			bar = val & PCI_REBAR_CTRL_BAR_IDX;
+			bar = FIELD_GET(PCI_REBAR_CTRL_BAR_IDX, val);
 			if (ep->epf_bar[bar])
 				pci_epc_bar_size_to_rebar_cap(ep->epf_bar[bar]->size, &val);
 			else