diff options
author | Bjorn Helgaas <bhelgaas@google.com> | 2022-12-10 17:36:41 +0100 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-12-10 17:36:41 +0100 |
commit | 4e5194733a81b9c46f8c7c6ca85526a1b8879bcb (patch) | |
tree | 403818fd437f38a40677a6f86e5337795558df19 /drivers/pci | |
parent | Merge branch 'pci/ctrl/aardvark' (diff) | |
parent | PCI: mvebu: Switch to using gpiod API (diff) | |
download | linux-4e5194733a81b9c46f8c7c6ca85526a1b8879bcb.tar.xz linux-4e5194733a81b9c46f8c7c6ca85526a1b8879bcb.zip |
Merge branch 'pci/ctrl/mvebu'
- Switch to the gpiod API so we can make of_get_named_gpio_flags() private
(Dmitry Torokhov)
* pci/ctrl/mvebu:
PCI: mvebu: Switch to using gpiod API
Diffstat (limited to 'drivers/pci')
-rw-r--r-- | drivers/pci/controller/pci-mvebu.c | 51 |
1 files changed, 17 insertions, 34 deletions
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c index 1ced73726a26..b12e128fc5d7 100644 --- a/drivers/pci/controller/pci-mvebu.c +++ b/drivers/pci/controller/pci-mvebu.c @@ -11,14 +11,14 @@ #include <linux/bitfield.h> #include <linux/clk.h> #include <linux/delay.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/init.h> +#include <linux/irqchip/chained_irq.h> #include <linux/mbus.h> #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/of_address.h> #include <linux/of_irq.h> -#include <linux/of_gpio.h> #include <linux/of_pci.h> #include <linux/of_platform.h> @@ -1261,9 +1261,8 @@ static int mvebu_pcie_parse_port(struct mvebu_pcie *pcie, struct mvebu_pcie_port *port, struct device_node *child) { struct device *dev = &pcie->pdev->dev; - enum of_gpio_flags flags; u32 slot_power_limit; - int reset_gpio, ret; + int ret; u32 num_lanes; port->pcie = pcie; @@ -1327,40 +1326,24 @@ static int mvebu_pcie_parse_port(struct mvebu_pcie *pcie, port->name, child); } - reset_gpio = of_get_named_gpio_flags(child, "reset-gpios", 0, &flags); - if (reset_gpio == -EPROBE_DEFER) { - ret = reset_gpio; + port->reset_name = devm_kasprintf(dev, GFP_KERNEL, "%s-reset", + port->name); + if (!port->reset_name) { + ret = -ENOMEM; goto err; } - if (gpio_is_valid(reset_gpio)) { - unsigned long gpio_flags; - - port->reset_name = devm_kasprintf(dev, GFP_KERNEL, "%s-reset", - port->name); - if (!port->reset_name) { - ret = -ENOMEM; + port->reset_gpio = devm_fwnode_gpiod_get(dev, of_fwnode_handle(child), + "reset", GPIOD_OUT_HIGH, + port->name); + ret = PTR_ERR_OR_ZERO(port->reset_gpio); + if (ret) { + if (ret != -ENOENT) goto err; - } - - if (flags & OF_GPIO_ACTIVE_LOW) { - dev_info(dev, "%pOF: reset gpio is active low\n", - child); - gpio_flags = GPIOF_ACTIVE_LOW | - GPIOF_OUT_INIT_LOW; - } else { - gpio_flags = GPIOF_OUT_INIT_HIGH; - } - - ret = devm_gpio_request_one(dev, reset_gpio, gpio_flags, - port->reset_name); - if (ret) { - if (ret == -EPROBE_DEFER) - goto err; - goto skip; - } - - port->reset_gpio = gpio_to_desc(reset_gpio); + /* reset gpio is optional */ + port->reset_gpio = NULL; + devm_kfree(dev, port->reset_name); + port->reset_name = NULL; } slot_power_limit = of_pci_get_slot_power_limit(child, |