diff options
Diffstat (limited to 'drivers/video/fbdev/cobalt_lcdfb.c')
| -rw-r--r-- | drivers/video/fbdev/cobalt_lcdfb.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/drivers/video/fbdev/cobalt_lcdfb.c b/drivers/video/fbdev/cobalt_lcdfb.c index 9da90bd242f4..308967b5096a 100644 --- a/drivers/video/fbdev/cobalt_lcdfb.c +++ b/drivers/video/fbdev/cobalt_lcdfb.c @@ -1,22 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Cobalt/SEAD3 LCD frame buffer driver. * * Copyright (C) 2008 Yoichi Yuasa <yuasa@linux-mips.org> * Copyright (C) 2012 MIPS Technologies, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <linux/delay.h> #include <linux/fb.h> @@ -126,7 +113,7 @@ static void lcd_clear(struct fb_info *info) lcd_write_control(info, LCD_RESET); } -static struct fb_fix_screeninfo cobalt_lcdfb_fix = { +static const struct fb_fix_screeninfo cobalt_lcdfb_fix = { .id = "cobalt-lcd", .type = FB_TYPE_TEXT, .type_aux = FB_AUX_TEXT_MDA, @@ -142,6 +129,9 @@ static ssize_t cobalt_lcdfb_read(struct fb_info *info, char __user *buf, unsigned long pos; int len, retval = 0; + if (!info->screen_base) + return -ENODEV; + pos = *ppos; if (pos >= LCD_CHARS_MAX || count == 0) return 0; @@ -188,6 +178,9 @@ static ssize_t cobalt_lcdfb_write(struct fb_info *info, const char __user *buf, unsigned long pos; int len, retval = 0; + if (!info->screen_base) + return -ENODEV; + pos = *ppos; if (pos >= LCD_CHARS_MAX || count == 0) return 0; @@ -282,12 +275,14 @@ static int cobalt_lcdfb_cursor(struct fb_info *info, struct fb_cursor *cursor) return 0; } -static struct fb_ops cobalt_lcd_fbops = { +static const struct fb_ops cobalt_lcd_fbops = { .owner = THIS_MODULE, .fb_read = cobalt_lcdfb_read, .fb_write = cobalt_lcdfb_write, .fb_blank = cobalt_lcdfb_blank, + __FB_DEFAULT_IOMEM_OPS_DRAW, .fb_cursor = cobalt_lcdfb_cursor, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static int cobalt_lcdfb_probe(struct platform_device *dev) @@ -320,7 +315,6 @@ static int cobalt_lcdfb_probe(struct platform_device *dev) info->fix.smem_len = info->screen_size; info->pseudo_palette = NULL; info->par = NULL; - info->flags = FBINFO_DEFAULT; retval = register_framebuffer(info); if (retval < 0) { @@ -337,7 +331,7 @@ static int cobalt_lcdfb_probe(struct platform_device *dev) return 0; } -static int cobalt_lcdfb_remove(struct platform_device *dev) +static void cobalt_lcdfb_remove(struct platform_device *dev) { struct fb_info *info; @@ -346,8 +340,6 @@ static int cobalt_lcdfb_remove(struct platform_device *dev) unregister_framebuffer(info); framebuffer_release(info); } - - return 0; } static struct platform_driver cobalt_lcdfb_driver = { |