From 7b1998116bbb2f3e5dd6cb9a8ee6db479b0b50a9 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 11 Nov 2013 22:41:56 +0100 Subject: ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node Modify struct acpi_dev_node to contain a pointer to struct acpi_device associated with the given device object (that is, its ACPI companion device) instead of an ACPI handle corresponding to it. Introduce two new macros for manipulating that pointer in a CONFIG_ACPI-safe way, ACPI_COMPANION() and ACPI_COMPANION_SET(), and rework the ACPI_HANDLE() macro to take the above changes into account. Drop the ACPI_HANDLE_SET() macro entirely and rework its users to use ACPI_COMPANION_SET() instead. For some of them who used to pass the result of acpi_get_child() directly to ACPI_HANDLE_SET() introduce a helper routine acpi_preset_companion() doing an equivalent thing. The main motivation for doing this is that there are things represented by struct acpi_device objects that don't have valid ACPI handles (so called fixed ACPI hardware features, such as power and sleep buttons) and we would like to create platform device objects for them and "glue" them to their ACPI companions in the usual way (which currently is impossible due to the lack of valid ACPI handles). However, there are more reasons why it may be useful. First, struct acpi_device pointers allow of much better type checking than void pointers which are ACPI handles, so it should be more difficult to write buggy code using modified struct acpi_dev_node and the new macros. Second, the change should help to reduce (over time) the number of places in which the result of ACPI_HANDLE() is passed to acpi_bus_get_device() in order to obtain a pointer to the struct acpi_device associated with the given "physical" device, because now that pointer is returned by ACPI_COMPANION() directly. Finally, the change should make it easier to write generic code that will build both for CONFIG_ACPI set and unset without adding explicit compiler directives to it. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Tested-by: Mika Westerberg # on Haswell Reviewed-by: Mika Westerberg Reviewed-by: Aaron Lu # for ATA and SDIO part --- drivers/gpu/drm/radeon/radeon_atpx_handler.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index d96070bf8388..27a6e9dbd0c4 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -8,8 +8,7 @@ */ #include #include -#include -#include +#include #include #include "radeon_acpi.h" -- cgit v1.2.2 From 3a83f992490f8235661b768e53bd5f14915420ac Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 14 Nov 2013 23:17:21 +0100 Subject: ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro Since DEVICE_ACPI_HANDLE() is now literally identical to ACPI_HANDLE(), replace it with the latter everywhere and drop its definition from include/acpi.h. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/intel_acpi.c | 2 +- drivers/gpu/drm/i915/intel_opregion.c | 2 +- drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 2 +- drivers/gpu/drm/nouveau/nouveau_acpi.c | 6 +++--- drivers/gpu/drm/radeon/radeon_acpi.c | 8 ++++---- drivers/gpu/drm/radeon/radeon_atpx_handler.c | 4 ++-- drivers/gpu/drm/radeon/radeon_bios.c | 2 +- 7 files changed, 13 insertions(+), 13 deletions(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c index 43959edd4291..dfff0907f70e 100644 --- a/drivers/gpu/drm/i915/intel_acpi.c +++ b/drivers/gpu/drm/i915/intel_acpi.c @@ -196,7 +196,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev) acpi_handle dhandle; int ret; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 119771ff46ab..8a94b8e15b27 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -289,7 +289,7 @@ static void intel_didl_outputs(struct drm_device *dev) u32 temp; int i = 0; - handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); + handle = ACPI_HANDLE(&dev->pdev->dev); if (!handle || acpi_bus_get_device(handle, &acpi_dev)) return; diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c index e286e132c7e7..129120473f6c 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c @@ -116,7 +116,7 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8 version) acpi_handle handle; int ret; - handle = DEVICE_ACPI_HANDLE(&device->pdev->dev); + handle = ACPI_HANDLE(&device->pdev->dev); if (!handle) return false; diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index cfbeee607b3a..d9eb65dae1f7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -256,7 +256,7 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev) acpi_handle dhandle; int retval = 0; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; @@ -404,7 +404,7 @@ bool nouveau_acpi_rom_supported(struct pci_dev *pdev) if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected) return false; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; @@ -438,7 +438,7 @@ nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) return NULL; } - handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); + handle = ACPI_HANDLE(&dev->pdev->dev); if (!handle) return NULL; diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c index 10f98c7742d8..98a9074b306b 100644 --- a/drivers/gpu/drm/radeon/radeon_acpi.c +++ b/drivers/gpu/drm/radeon/radeon_acpi.c @@ -369,7 +369,7 @@ int radeon_atif_handler(struct radeon_device *rdev, return NOTIFY_DONE; /* Check pending SBIOS requests */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); count = radeon_atif_get_sbios_requests(handle, &req); if (count <= 0) @@ -556,7 +556,7 @@ int radeon_acpi_pcie_notify_device_ready(struct radeon_device *rdev) struct radeon_atcs *atcs = &rdev->atcs; /* Get the device handle */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); if (!handle) return -EINVAL; @@ -596,7 +596,7 @@ int radeon_acpi_pcie_performance_request(struct radeon_device *rdev, u32 retry = 3; /* Get the device handle */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); if (!handle) return -EINVAL; @@ -699,7 +699,7 @@ int radeon_acpi_init(struct radeon_device *rdev) int ret; /* Get the device handle */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); /* No need to proceed if we're sure that ATIF is not supported */ if (!ASIC_IS_AVIVO(rdev) || !rdev->bios || !handle) diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 27a6e9dbd0c4..933bd946057b 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -442,7 +442,7 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) acpi_handle dhandle, atpx_handle; acpi_status status; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; @@ -488,7 +488,7 @@ static int radeon_atpx_init(void) */ static int radeon_atpx_get_client_id(struct pci_dev *pdev) { - if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) + if (radeon_atpx_priv.dhandle == ACPI_HANDLE(&pdev->dev)) return VGA_SWITCHEROO_IGD; else return VGA_SWITCHEROO_DIS; diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index 061b227dae0c..374eaba78a69 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -185,7 +185,7 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev) return false; while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) { - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) continue; -- cgit v1.2.2