Building the driver when GPIOLIB=n is not selected is causing the following compilation failure: drivers/pci/controller/dwc/pci-meson.c: In function 'meson_pcie_assert_reset': drivers/pci/controller/dwc/pci-meson.c:290:2: error: implicit declaration of function 'gpiod_set_value_cansleep'; did you mean 'gpio_set_value_cansleep'? [-Werror=implicit-function-declaration] gpiod_set_value_cansleep(mp->reset_gpio, 0); ^~~~~~~~~~~~~~~~~~~~~~~~ gpio_set_value_cansleep drivers/pci/controller/dwc/pci-meson.c: In function 'meson_pcie_probe': drivers/pci/controller/dwc/pci-meson.c:540:19: error: implicit declaration of function 'devm_gpiod_get'; did you mean 'devm_gpio_free'? [-Werror=implicit-function-declaration] mp->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); ^~~~~~~~~~~~~~ devm_gpio_free drivers/pci/controller/dwc/pci-meson.c:540:48: error: 'GPIOD_OUT_LOW' undeclared (first use in this function); did you mean 'GPIOF_INIT_LOW'? mp->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); ^~~~~~~~~~~~~ GPIOF_INIT_LOW Add the missing linux/gpio/consumer.h header to fix it. Fixes: 9c0ef6d34fdb ("PCI: amlogic: Add the Amlogic Meson PCIe controller driver") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> [lorenzo.pieralisi@arm.com: commit log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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