[U-Boot] [PATCH 4/7] pci: imx: request gpio before use

Peng Fan peng.fan at nxp.com
Tue Jan 2 01:32:07 UTC 2018


Before use GPIO, we need to request gpio first.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
Cc: Stefano Babic <sbabic at denx.de>
Cc: Fabio Estevam <fabio.estevam at 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");
 	gpio_direction_output(CONFIG_PCIE_IMX_PERST_GPIO, 0);
 	mdelay(20);
 	gpio_set_value(CONFIG_PCIE_IMX_PERST_GPIO, 1);
-- 
2.14.1



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