fbdev: au1100fb: Mark several local functions as static

This fixes several (fatal) compiler warnings à la

	drivers/video/fbdev/au1100fb.c:530:6: error: no previous prototype for ‘au1100fb_drv_remove’ [-Werror=missing-prototypes]
	  523 | void au1100fb_drv_remove(struct platform_device *dev)
	      |      ^~~~~~~~~~~~~~~~~~~

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Helge Deller <deller@gmx.de>

Author: ukleinek

drivers/video/fbdev/au1100fb.c

@@ -120,7 +120,7 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
  * Set hardware with var settings. This will enable the controller with a specific
  * mode, normally validated with the fb_check_var method
 	 */
-int au1100fb_setmode(struct au1100fb_device *fbdev)
+static int au1100fb_setmode(struct au1100fb_device *fbdev)
 {
 	struct fb_info *info;
 	u32 words;
@@ -219,7 +219,8 @@ int au1100fb_setmode(struct au1100fb_device *fbdev)
 /* fb_setcolreg
  * Set color in LCD palette.
  */
-int au1100fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi)
+static int au1100fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
+				 unsigned transp, struct fb_info *fbi)
 {
 	struct au1100fb_device *fbdev;
 	u32 *palette;
@@ -278,7 +279,7 @@ int au1100fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned
 /* fb_pan_display
  * Pan display in x and/or y as specified
  */
-int au1100fb_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
+static int au1100fb_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
 {
 	struct au1100fb_device *fbdev;
 	int dy;
@@ -325,7 +326,7 @@ int au1100fb_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
  * Map video memory in user space. We don't use the generic fb_mmap method mainly
  * to allow the use of the TLB streaming flag (CCA=6)
  */
-int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
+static int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 {
 	struct au1100fb_device *fbdev = to_au1100fb_device(fbi);
 
@@ -517,7 +518,7 @@ static int au1100fb_drv_probe(struct platform_device *dev)
 	return -ENODEV;
 }
 
-void au1100fb_drv_remove(struct platform_device *dev)
+static void au1100fb_drv_remove(struct platform_device *dev)
 {
 	struct au1100fb_device *fbdev = NULL;
 
@@ -557,7 +558,7 @@ static int au1100fb_drv_suspend(struct platform_device *dev, pm_message_t state)
 	return 0;
 }
 
-int au1100fb_drv_resume(struct platform_device *dev)
+static int au1100fb_drv_resume(struct platform_device *dev)
 {
 	struct au1100fb_device *fbdev = platform_get_drvdata(dev);
 	int ret;