diff options
Diffstat (limited to 'drivers/video/fbdev/mxsfb.c')
| -rw-r--r-- | drivers/video/fbdev/mxsfb.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/video/fbdev/mxsfb.c b/drivers/video/fbdev/mxsfb.c index 12c8bd1d24d5..d8bebe35b410 100644 --- a/drivers/video/fbdev/mxsfb.c +++ b/drivers/video/fbdev/mxsfb.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2010 Juergen Beisert, Pengutronix * @@ -6,15 +7,6 @@ * * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - * - * 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. */ #define DRIVER_NAME "mxsfb" @@ -181,6 +173,7 @@ struct mxsfb_info { const struct mxsfb_devdata *devdata; u32 sync; struct regulator *reg_lcd; + int pre_init; }; #define mxsfb_is_v3(host) (host->devdata->ipversion == 3) @@ -419,6 +412,12 @@ static int mxsfb_set_par(struct fb_info *fb_info) fb_info->fix.line_length = line_size; + if (host->pre_init) { + mxsfb_enable_controller(fb_info); + host->pre_init = 0; + return 0; + } + /* * It seems, you can't re-program the controller if it is still running. * This may lead into shifted pictures (FIFO issue?). @@ -623,7 +622,6 @@ static int mxsfb_restore_mode(struct fb_info *fb_info, struct fb_videomode *vmode) { struct mxsfb_info *host = fb_info->par; - unsigned line_count; unsigned period; unsigned long pa, fbsize; int bits_per_pixel, ofs, ret = 0; @@ -710,7 +708,6 @@ static int mxsfb_restore_mode(struct fb_info *fb_info, writel(fb_info->fix.smem_start, host->base + host->devdata->next_buf); } - line_count = fb_info->fix.smem_len / fb_info->fix.line_length; fb_info->fix.ypanstep = 1; clk_prepare_enable(host->clk); @@ -931,6 +928,10 @@ static int mxsfb_probe(struct platform_device *pdev) if (IS_ERR(host->reg_lcd)) host->reg_lcd = NULL; +#if defined(CONFIG_FB_PRE_INIT_FB) + host->pre_init = 1; +#endif + fb_info->pseudo_palette = devm_kcalloc(&pdev->dev, 16, sizeof(u32), GFP_KERNEL); if (!fb_info->pseudo_palette) { @@ -963,6 +964,7 @@ static int mxsfb_probe(struct platform_device *pdev) mxsfb_enable_controller(fb_info); } + host->pre_init = 0; dev_info(&pdev->dev, "initialized\n"); return 0; |