On 02/01/2018 11:27, Peng Fan wrote: > Before use GPIO, we need to request gpio first. Free gpio after use. > > Signed-off-by: Peng Fan <[email protected]> > Cc: Stefano Babic <[email protected]> > Cc: Fabio Estevam <[email protected]> > --- > > V2: > Typo fix. > Free gpio after use. > > drivers/pci/pcie_imx.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/pci/pcie_imx.c b/drivers/pci/pcie_imx.c > index 2900c8d9d1..90a34063b0 100644 > --- a/drivers/pci/pcie_imx.c > +++ b/drivers/pci/pcie_imx.c > @@ -517,10 +517,12 @@ static int imx6_pcie_init_phy(void) > __weak int imx6_pcie_toggle_power(void) > { > #ifdef CONFIG_PCIE_IMX_POWER_GPIO > + gpio_request(CONFIG_PCIE_IMX_POWER_GPIO, "pcie_power"); > gpio_direction_output(CONFIG_PCIE_IMX_POWER_GPIO, 0); > mdelay(20); > gpio_set_value(CONFIG_PCIE_IMX_POWER_GPIO, 1); > mdelay(20); > + gpio_free(CONFIG_PCIE_IMX_POWER_GPIO); > #endif > return 0; > } > @@ -556,10 +558,12 @@ __weak int imx6_pcie_toggle_reset(void) > * state due to being previously used in U-Boot. > */ > #ifdef CONFIG_PCIE_IMX_PERST_GPIO > + gpio_request(CONFIG_PCIE_IMX_PERST_GPIO, "pcie_reset"); > gpio_direction_output(CONFIG_PCIE_IMX_PERST_GPIO, 0); > mdelay(20); > gpio_set_value(CONFIG_PCIE_IMX_PERST_GPIO, 1); > mdelay(20); > + gpio_free(CONFIG_PCIE_IMX_PERST_GPIO); > #else > puts("WARNING: Make sure the PCIe #PERST line is connected!\n"); > #endif >
Reviewed-by: Stefano Babic <[email protected]> Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: [email protected] ===================================================================== _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
