sysfb: Pass sysfb_primary_display to devices

Instead of screen_info, store a copy of sysfb_primary_display as
device data. Pick it up in drivers. Later changes will add additional
data to the display info, such as EDID information.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Richard Lyu <richard.lyu@suse.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

Author: tdz

drivers/firmware/sysfb.c

@@ -141,7 +141,8 @@ static struct device *sysfb_parent_dev(const struct screen_info *si)
 
 static __init int sysfb_init(void)
 {
-	struct screen_info *si = &sysfb_primary_display.screen;
+	struct sysfb_display_info *dpy = &sysfb_primary_display;
+	struct screen_info *si = &dpy->screen;
 	struct device *parent;
 	unsigned int type;
 	struct simplefb_platform_data mode;
@@ -202,7 +203,7 @@ static __init int sysfb_init(void)
 
 	sysfb_set_efifb_fwnode(si, pd);
 
-	ret = platform_device_add_data(pd, si, sizeof(*si));
+	ret = platform_device_add_data(pd, dpy, sizeof(*dpy));
 	if (ret)
 		goto err;
 

drivers/gpu/drm/sysfb/efidrm.c

@@ -4,7 +4,7 @@
 #include <linux/efi.h>
 #include <linux/limits.h>
 #include <linux/platform_device.h>
-#include <linux/screen_info.h>
+#include <linux/sysfb.h>
 
 #include <drm/clients/drm_client_setup.h>
 #include <drm/drm_atomic.h>
@@ -141,6 +141,7 @@ static const struct drm_mode_config_funcs efidrm_mode_config_funcs = {
 static struct efidrm_device *efidrm_device_create(struct drm_driver *drv,
 						  struct platform_device *pdev)
 {
+	const struct sysfb_display_info *dpy;
 	const struct screen_info *si;
 	const struct drm_format_info *format;
 	int width, height, stride;
@@ -160,9 +161,11 @@ static struct efidrm_device *efidrm_device_create(struct drm_driver *drv,
 	size_t nformats;
 	int ret;
 
-	si = dev_get_platdata(&pdev->dev);
-	if (!si)
+	dpy = dev_get_platdata(&pdev->dev);
+	if (!dpy)
 		return ERR_PTR(-ENODEV);
+	si = &dpy->screen;
+
 	if (screen_info_video_type(si) != VIDEO_TYPE_EFI)
 		return ERR_PTR(-ENODEV);
 

drivers/gpu/drm/sysfb/vesadrm.c

@@ -4,7 +4,7 @@
 #include <linux/ioport.h>
 #include <linux/limits.h>
 #include <linux/platform_device.h>
-#include <linux/screen_info.h>
+#include <linux/sysfb.h>
 
 #include <drm/clients/drm_client_setup.h>
 #include <drm/drm_atomic.h>
@@ -391,6 +391,7 @@ static const struct drm_mode_config_funcs vesadrm_mode_config_funcs = {
 static struct vesadrm_device *vesadrm_device_create(struct drm_driver *drv,
 						    struct platform_device *pdev)
 {
+	const struct sysfb_display_info *dpy;
 	const struct screen_info *si;
 	const struct drm_format_info *format;
 	int width, height, stride;
@@ -410,9 +411,11 @@ static struct vesadrm_device *vesadrm_device_create(struct drm_driver *drv,
 	size_t nformats;
 	int ret;
 
-	si = dev_get_platdata(&pdev->dev);
-	if (!si)
+	dpy = dev_get_platdata(&pdev->dev);
+	if (!dpy)
 		return ERR_PTR(-ENODEV);
+	si = &dpy->screen;
+
 	if (screen_info_video_type(si) != VIDEO_TYPE_VLFB)
 		return ERR_PTR(-ENODEV);
 

drivers/video/fbdev/efifb.c

@@ -15,7 +15,7 @@
 #include <linux/fb.h>
 #include <linux/platform_device.h>
 #include <linux/printk.h>
-#include <linux/screen_info.h>
+#include <linux/sysfb.h>
 #include <video/vga.h>
 #include <asm/efi.h>
 #include <drm/drm_utils.h> /* For drm_get_panel_orientation_quirk */
@@ -345,6 +345,7 @@ ATTRIBUTE_GROUPS(efifb);
 
 static int efifb_probe(struct platform_device *dev)
 {
+	struct sysfb_display_info *dpy;
 	struct screen_info *si;
 	struct fb_info *info;
 	struct efifb_par *par;
@@ -360,10 +361,11 @@ static int efifb_probe(struct platform_device *dev)
 	 * driver. We get a copy of the attached screen_info, so that we can
 	 * modify its values without affecting later drivers.
 	 */
-	si = dev_get_platdata(&dev->dev);
-	if (!si)
+	dpy = dev_get_platdata(&dev->dev);
+	if (!dpy)
 		return -ENODEV;
-	si = devm_kmemdup(&dev->dev, si, sizeof(*si), GFP_KERNEL);
+
+	si = devm_kmemdup(&dev->dev, &dpy->screen, sizeof(*si), GFP_KERNEL);
 	if (!si)
 		return -ENOMEM;
 

drivers/video/fbdev/vesafb.c

@@ -20,7 +20,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/screen_info.h>
+#include <linux/sysfb.h>
 #include <linux/io.h>
 
 #include <video/vga.h>
@@ -243,6 +243,7 @@ static int vesafb_setup(char *options)
 
 static int vesafb_probe(struct platform_device *dev)
 {
+	struct sysfb_display_info *dpy;
 	struct screen_info *si;
 	struct fb_info *info;
 	struct vesafb_par *par;
@@ -257,10 +258,11 @@ static int vesafb_probe(struct platform_device *dev)
 	 * driver. We get a copy of the attached screen_info, so that we can
 	 * modify its values without affecting later drivers.
 	 */
-	si = dev_get_platdata(&dev->dev);
-	if (!si)
+	dpy = dev_get_platdata(&dev->dev);
+	if (!dpy)
 		return -ENODEV;
-	si = devm_kmemdup(&dev->dev, si, sizeof(*si), GFP_KERNEL);
+
+	si = devm_kmemdup(&dev->dev, &dpy->screen, sizeof(*si), GFP_KERNEL);
 	if (!si)
 		return -ENOMEM;
 

drivers/video/fbdev/vga16fb.c

@@ -21,7 +21,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/screen_info.h>
+#include <linux/sysfb.h>
 
 #include <asm/io.h>
 #include <video/vga.h>
@@ -1305,15 +1305,17 @@ static const struct fb_ops vga16fb_ops = {
 
 static int vga16fb_probe(struct platform_device *dev)
 {
+	struct sysfb_display_info *dpy;
 	struct screen_info *si;
 	struct fb_info *info;
 	struct vga16fb_par *par;
 	int i;
 	int ret = 0;
 
-	si = dev_get_platdata(&dev->dev);
-	if (!si)
+	dpy = dev_get_platdata(&dev->dev);
+	if (!dpy)
 		return -ENODEV;
+	si = &dpy->screen;
 
 	ret = check_mode_supported(si);
 	if (ret)