PCI: imx6: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Link: https://lore.kernel.org/r/20200722031903.GA3711@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 90df28c..5fef261 100644 (file)
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -439,7 +439,7 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
                regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
                                   IMX6SX_GPR12_PCIE_TEST_POWERDOWN, 0);
                break;
-       case IMX6QP:            /* FALLTHROUGH */
+       case IMX6QP:
        case IMX6Q:
                /* power up core phy and enable ref clock */
                regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
@@ -642,7 +642,7 @@ static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie)
                regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
                                   IMX6SX_GPR12_PCIE_RX_EQ_MASK,
                                   IMX6SX_GPR12_PCIE_RX_EQ_2);
-               /* FALLTHROUGH */
+               fallthrough;
        default:
                regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
                                   IMX6Q_GPR12_PCIE_CTL_2, 0 << 10);
@@ -1105,7 +1105,7 @@ static int imx6_pcie_probe(struct platform_device *pdev)
                        dev_err(dev, "pcie_aux clock source missing or invalid\n");
                        return PTR_ERR(imx6_pcie->pcie_aux);
                }
-               /* fall through */
+               fallthrough;
        case IMX7D:
                if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR)
                        imx6_pcie->controller_id = 1;