diff options
Diffstat (limited to 'arch/arm/mach-tegra/board-harmony-pcie.c')
-rw-r--r-- | arch/arm/mach-tegra/board-harmony-pcie.c | 49 |
1 files changed, 30 insertions, 19 deletions
diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c index e8c3fda9bec2..3cdc1bb8254c 100644 --- a/arch/arm/mach-tegra/board-harmony-pcie.c +++ b/arch/arm/mach-tegra/board-harmony-pcie.c @@ -18,35 +18,57 @@ #include <linux/kernel.h> #include <linux/gpio.h> #include <linux/err.h> +#include <linux/of_gpio.h> #include <linux/regulator/consumer.h> #include <asm/mach-types.h> #include "board.h" -#include "board-harmony.h" #ifdef CONFIG_TEGRA_PCI int __init harmony_pcie_init(void) { + struct device_node *np; + int en_vdd_1v05; struct regulator *regulator = NULL; int err; - err = gpio_request(TEGRA_GPIO_EN_VDD_1V05_GPIO, "EN_VDD_1V05"); - if (err) + np = of_find_node_by_path("/regulators/regulator@3"); + if (!np) { + pr_err("%s: of_find_node_by_path failed\n", __func__); + return -ENODEV; + } + + en_vdd_1v05 = of_get_named_gpio(np, "gpio", 0); + if (en_vdd_1v05 < 0) { + pr_err("%s: of_get_named_gpio failed: %d\n", __func__, + en_vdd_1v05); + return en_vdd_1v05; + } + + err = gpio_request(en_vdd_1v05, "EN_VDD_1V05"); + if (err) { + pr_err("%s: gpio_request failed: %d\n", __func__, err); return err; + } - gpio_direction_output(TEGRA_GPIO_EN_VDD_1V05_GPIO, 1); + gpio_direction_output(en_vdd_1v05, 1); - regulator = regulator_get(NULL, "pex_clk"); - if (IS_ERR_OR_NULL(regulator)) + regulator = regulator_get(NULL, "vdd_ldo0,vddio_pex_clk"); + if (IS_ERR_OR_NULL(regulator)) { + pr_err("%s: regulator_get failed: %d\n", __func__, + (int)PTR_ERR(regulator)); goto err_reg; + } regulator_enable(regulator); err = tegra_pcie_init(true, true); - if (err) + if (err) { + pr_err("%s: tegra_pcie_init failed: %d\n", __func__, err); goto err_pcie; + } return 0; @@ -54,20 +76,9 @@ err_pcie: regulator_disable(regulator); regulator_put(regulator); err_reg: - gpio_free(TEGRA_GPIO_EN_VDD_1V05_GPIO); + gpio_free(en_vdd_1v05); return err; } -static int __init harmony_pcie_initcall(void) -{ - if (!machine_is_harmony()) - return 0; - - return harmony_pcie_init(); -} - -/* PCI should be initialized after I2C, mfd and regulators */ -subsys_initcall_sync(harmony_pcie_initcall); - #endif |