drm: Remove unused drm_platform midlayer

Now that the last driver has been converted, the drm_platform midlayer
is unused. Remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

Documentation/gpu/drm-internals.rst

@@ -240,9 +240,6 @@ drivers.
 .. kernel-doc:: drivers/gpu/drm/drm_pci.c
    :export:
 
-.. kernel-doc:: drivers/gpu/drm/drm_platform.c
-   :export:
-
 Open/Close, File Operations and IOCTLs
 ======================================
 

drivers/gpu/drm/Makefile

@@ -7,7 +7,7 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
 		drm_lock.o drm_memory.o drm_drv.o \
 		drm_scatter.o drm_pci.o \
-		drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \
+		drm_sysfs.o drm_hashtab.o drm_mm.o \
 		drm_crtc.o drm_fourcc.o drm_modes.o drm_edid.o \
 		drm_info.o drm_encoder_slave.o \
 		drm_trace_points.o drm_global.o drm_prime.o \

drivers/gpu/drm/drm_platform.c

-/*
- * Derived from drm_pci.c
- *
- * Copyright 2003 José Fonseca.
- * Copyright 2003 Leif Delgass.
- * Copyright (c) 2009, Code Aurora Forum.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <linux/export.h>
-#include <drm/drmP.h>
-
-/*
- * Register.
- *
- * \param platdev - Platform device struture
- * \return zero on success or a negative number on failure.
- *
- * Attempt to gets inter module "drm" information. If we are first
- * then register the character device and inter module information.
- * Try and register, if we fail to register, backout previous work.
- */
-
-static int drm_get_platform_dev(struct platform_device *platdev,
-				struct drm_driver *driver)
-{
-	struct drm_device *dev;
-	int ret;
-
-	DRM_DEBUG("\n");
-
-	dev = drm_dev_alloc(driver, &platdev->dev);
-	if (IS_ERR(dev))
-		return PTR_ERR(dev);
-
-	dev->platformdev = platdev;
-
-	ret = drm_dev_register(dev, 0);
-	if (ret)
-		goto err_free;
-
-	return 0;
-
-err_free:
-	drm_dev_unref(dev);
-	return ret;
-}
-
-/**
- * drm_platform_init - Register a platform device with the DRM subsystem
- * @driver: DRM device driver
- * @platform_device: platform device to register
- *
- * Registers the specified DRM device driver and platform device with the DRM
- * subsystem, initializing a drm_device structure and calling the driver's
- * .load() function.
- *
- * NOTE: This function is deprecated, please use drm_dev_alloc() and
- * drm_dev_register() instead and remove your &drm_driver.load callback.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device)
-{
-	DRM_DEBUG("\n");
-
-	return drm_get_platform_dev(platform_device, driver);
-}
-EXPORT_SYMBOL(drm_platform_init);

include/drm/drmP.h

@@ -819,9 +819,6 @@ static inline int drm_pci_set_busid(struct drm_device *dev,
 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
 extern int drm_pcie_get_max_link_width(struct drm_device *dev, u32 *mlw);
 
-/* platform section */
-extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
-
 /* returns true if currently okay to sleep */
 static __inline__ bool drm_can_sleep(void)
 {