On Mon, Jan 1, 2018 at 11:32 PM, Peng Fan <peng....@nxp.com> wrote:
> Before use GPIO, we need to request gpio first.
>
> Signed-off-by: Peng Fan <peng....@nxp.com>
> Cc: Stefano Babic <sba...@denx.de>
> Cc: Fabio Estevam <fabio.este...@nxp.com>
> ---
> drivers/pci/pcie_imx.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/pci/pcie_imx.c b/drivers/pci/pcie_imx.c
> index 2900c8d9d1..37a554abf2 100644
> --- a/drivers/pci/pcie_imx.c
> +++ b/drivers/pci/pcie_imx.c
> @@ -517,6 +517,7 @@ 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_reset");
> gpio_direction_output(CONFIG_PCIE_IMX_POWER_GPIO, 0);
> mdelay(20);
> gpio_set_value(CONFIG_PCIE_IMX_POWER_GPIO, 1);
> @@ -556,6 +557,7 @@ __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");
There is no need to call gpio_request() twice. Please call it once.
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