ACPI / LPSS: Make acpi_lpss_find_device() also find PCI devices (1e30124a) · Commits · 戴 / test

On some Cherry Trail systems the GPU ACPI fwnode has power-resources which point to the PMIC, which is connected over one of the LPSS I2C controllers. To get the suspend/resume ordering correct for this we need to be able to add device-links between the GPU and the I2c controller. The GPU is a PCI device, so this requires acpi_lpss_find_device() to also work on PCI devs. Tested-by:

Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by:

Hans de Goede <hdegoede@redhat.com> Reviewed-by:

Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:

Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpi_lpss.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@
		#include <linux/err.h>
		#include <linux/io.h>
		#include <linux/mutex.h>
		#include <linux/pci.h>
		#include <linux/platform_device.h>
		#include <linux/platform_data/clk-lpss.h>
		#include <linux/platform_data/x86/pmc_atom.h>
		@@ -518,12 +519,18 @@ static int match_hid_uid(struct device dev, void data)

		static struct device acpi_lpss_find_device(const char hid, const char *uid)
		{
		struct device *dev;

		struct hid_uid data = {
		.hid = hid,
		.uid = uid,
		};

		return bus_find_device(&platform_bus_type, NULL, &data, match_hid_uid);
		dev = bus_find_device(&platform_bus_type, NULL, &data, match_hid_uid);
		if (dev)
		return dev;

		return bus_find_device(&pci_bus_type, NULL, &data, match_hid_uid);
		}

		static bool acpi_lpss_dep(struct acpi_device *adev, acpi_handle handle)

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