Commit dcdb1674 authored by Jordan Crouse's avatar Jordan Crouse Committed by Dave Airlie
Browse files

drm: Add support for platform devices to register as DRM devices 



Allow platform devices without PCI resources to be DRM devices.

[airlied: fixup warnings with dev pointers]

Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 01d73a69

drivers/gpu/drm/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
#

menuconfig DRM

	tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"

	depends on (AGP || AGP=n) && PCI && !EMULATED_CMPXCHG && MMU

	depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && MMU

	select I2C

	select I2C_ALGOBIT

	select SLOW_WORK
@@ -17,7 +17,7 @@ menuconfig DRM 
	  These modules provide support for synchronization, security, and

	  DMA transfers. Please see <http://dri.sourceforge.net/> for more

	  details.  You should also select and configure AGP

	  (/dev/agpgart) support.

	  (/dev/agpgart) support if it is available for your platform.



config DRM_KMS_HELPER

	tristate

drivers/gpu/drm/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -9,7 +9,7 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \ 
		drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \

		drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \

		drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \

		drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \

		drm_platform.o drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \

		drm_crtc.o drm_modes.o drm_edid.o \

		drm_info.o drm_debugfs.o drm_encoder_slave.o

drivers/gpu/drm/drm_drv.c

+5 −32
Original line number Diff line number Diff line
@@ -243,47 +243,20 @@ int drm_lastclose(struct drm_device * dev) 
 *

 * Initializes an array of drm_device structures, and attempts to

 * initialize all available devices, using consecutive minors, registering the

 * stubs and initializing the AGP device.

 * stubs and initializing the device.

 *

 * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and

 * after the initialization for driver customization.

 */

int drm_init(struct drm_driver *driver)

{

	struct pci_dev *pdev = NULL;

	const struct pci_device_id *pid;

	int i;



	DRM_DEBUG("\n");



	INIT_LIST_HEAD(&driver->device_list);



	if (driver->driver_features & DRIVER_MODESET)

		return pci_register_driver(&driver->pci_driver);



	/* If not using KMS, fall back to stealth mode manual scanning. */

	for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {

		pid = &driver->pci_driver.id_table[i];



		/* Loop around setting up a DRM device for each PCI device

		 * matching our ID and device class.  If we had the internal

		 * function that pci_get_subsys and pci_get_class used, we'd

		 * be able to just pass pid in instead of doing a two-stage

		 * thing.

		 */

		pdev = NULL;

		while ((pdev =

			pci_get_subsys(pid->vendor, pid->device, pid->subvendor,

				       pid->subdevice, pdev)) != NULL) {

			if ((pdev->class & pid->class_mask) != pid->class)

				continue;



			/* stealth mode requires a manual probe */

			pci_dev_get(pdev);

			drm_get_dev(pdev, pid, driver);

		}

	}

	return 0;

	if (driver->driver_features & DRIVER_USE_PLATFORM_DEVICE)

		return drm_platform_init(driver);

	else

		return drm_pci_init(driver);

}



EXPORT_SYMBOL(drm_init);

drivers/gpu/drm/drm_edid.c

+2 −2
Original line number Diff line number Diff line
@@ -282,7 +282,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) 
	return block;



carp:

	dev_warn(&connector->dev->pdev->dev, "%s: EDID block %d invalid.\n",

	dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",

		 drm_get_connector_name(connector), j);



out:
@@ -1626,7 +1626,7 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) 
		return 0;

	}

	if (!drm_edid_is_valid(edid)) {

		dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",

		dev_warn(connector->dev->dev, "%s: EDID invalid.\n",

			 drm_get_connector_name(connector));

		return 0;

	}

drivers/gpu/drm/drm_info.c

+17 −6
Original line number Diff line number Diff line
@@ -51,13 +51,24 @@ int drm_name_info(struct seq_file *m, void *data) 
	if (!master)

		return 0;



	if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) {

		if (master->unique) {

			seq_printf(m, "%s %s %s\n",

					dev->driver->platform_device->name,

					dev_name(dev->dev), master->unique);

		} else {

			seq_printf(m, "%s\n",

				dev->driver->platform_device->name);

		}

	} else {

		if (master->unique) {

			seq_printf(m, "%s %s %s\n",

				dev->driver->pci_driver.name,

			   pci_name(dev->pdev), master->unique);

				dev_name(dev->dev), master->unique);

		} else {

			seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,

			   pci_name(dev->pdev));

				dev_name(dev->dev));

		}

	}



	return 0;