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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 09:14:00 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 09:14:00 -0700 |
commit | 63c422afe3739b68bec0b5c42807d1450c951caf (patch) | |
tree | 2cdbcbd4c6fcea69fbe0b164242336c38168f631 /drivers | |
parent | 6f3a28f7d1f0a65a78443c273b6e8ec01becf301 (diff) | |
parent | d14b272bc63f35a8f20b4b1df16c080b8d24f8f1 (diff) | |
download | linux-63c422afe3739b68bec0b5c42807d1450c951caf.tar.gz linux-63c422afe3739b68bec0b5c42807d1450c951caf.tar.bz2 linux-63c422afe3739b68bec0b5c42807d1450c951caf.zip |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3848/1: pxafb: Add option of fixing video modes and spitz QVGA mode support
[ARM] 3880/1: remove the last trace of iop31x support
[ARM] 3879/1: ep93xx: instantiate platform devices for ep93xx ethernet
[ARM] 3809/3: get rid of 4 megabyte kernel image size limit
[ARM] Fix XIP_KERNEL build error in arch/arm/mm/mmu.c
[ARM] 3874/1: Remove leftover usage of asm/timeofday.h
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/video/pxafb.c | 106 | ||||
-rw-r--r-- | drivers/video/pxafb.h | 4 |
2 files changed, 78 insertions, 32 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index bbb07106cd54..3bc5da4a57ca 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -59,7 +59,7 @@ #define LCCR3_INVALID_CONFIG_MASK (LCCR3_HSP|LCCR3_VSP|LCCR3_PCD|LCCR3_BPP) static void (*pxafb_backlight_power)(int); -static void (*pxafb_lcd_power)(int); +static void (*pxafb_lcd_power)(int, struct fb_var_screeninfo *); static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *); static void set_ctrlr_state(struct pxafb_info *fbi, u_int state); @@ -214,6 +214,48 @@ extern unsigned int get_clk_frequency_khz(int info); #endif /* + * Select the smallest mode that allows the desired resolution to be + * displayed. If desired parameters can be rounded up. + */ +static struct pxafb_mode_info *pxafb_getmode(struct pxafb_mach_info *mach, struct fb_var_screeninfo *var) +{ + struct pxafb_mode_info *mode = NULL; + struct pxafb_mode_info *modelist = mach->modes; + unsigned int best_x = 0xffffffff, best_y = 0xffffffff; + unsigned int i; + + for (i = 0 ; i < mach->num_modes ; i++) { + if (modelist[i].xres >= var->xres && modelist[i].yres >= var->yres && + modelist[i].xres < best_x && modelist[i].yres < best_y && + modelist[i].bpp >= var->bits_per_pixel ) { + best_x = modelist[i].xres; + best_y = modelist[i].yres; + mode = &modelist[i]; + } + } + + return mode; +} + +static void pxafb_setmode(struct fb_var_screeninfo *var, struct pxafb_mode_info *mode) +{ + var->xres = mode->xres; + var->yres = mode->yres; + var->bits_per_pixel = mode->bpp; + var->pixclock = mode->pixclock; + var->hsync_len = mode->hsync_len; + var->left_margin = mode->left_margin; + var->right_margin = mode->right_margin; + var->vsync_len = mode->vsync_len; + var->upper_margin = mode->upper_margin; + var->lower_margin = mode->lower_margin; + var->sync = mode->sync; + var->grayscale = mode->cmap_greyscale; + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; +} + +/* * pxafb_check_var(): * Get the video params out of 'var'. If a value doesn't fit, round it up, * if it's too big, return -EINVAL. @@ -225,15 +267,29 @@ extern unsigned int get_clk_frequency_khz(int info); static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { struct pxafb_info *fbi = (struct pxafb_info *)info; + struct pxafb_mach_info *inf = fbi->dev->platform_data; if (var->xres < MIN_XRES) var->xres = MIN_XRES; if (var->yres < MIN_YRES) var->yres = MIN_YRES; - if (var->xres > fbi->max_xres) - return -EINVAL; - if (var->yres > fbi->max_yres) - return -EINVAL; + + if (inf->fixed_modes) { + struct pxafb_mode_info *mode; + + mode = pxafb_getmode(inf, var); + if (!mode) + return -EINVAL; + pxafb_setmode(var, mode); + } else { + if (var->xres > inf->modes->xres) + return -EINVAL; + if (var->yres > inf->modes->yres) + return -EINVAL; + if (var->bits_per_pixel > inf->modes->bpp) + return -EINVAL; + } + var->xres_virtual = max(var->xres_virtual, var->xres); var->yres_virtual = @@ -693,7 +749,7 @@ static inline void __pxafb_lcd_power(struct pxafb_info *fbi, int on) pr_debug("pxafb: LCD power o%s\n", on ? "n" : "ff"); if (pxafb_lcd_power) - pxafb_lcd_power(on); + pxafb_lcd_power(on, &fbi->fb.var); } static void pxafb_setup_gpio(struct pxafb_info *fbi) @@ -869,9 +925,11 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) * registers. */ if (old_state == C_ENABLE) { + __pxafb_lcd_power(fbi, 0); pxafb_disable_controller(fbi); pxafb_setup_gpio(fbi); pxafb_enable_controller(fbi); + __pxafb_lcd_power(fbi, 1); } break; @@ -1049,6 +1107,8 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) struct pxafb_info *fbi; void *addr; struct pxafb_mach_info *inf = dev->platform_data; + struct pxafb_mode_info *mode = inf->modes; + int i, smemlen; /* Alloc the pxafb_info and pseudo_palette in one step */ fbi = kmalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL); @@ -1082,31 +1142,21 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) addr = addr + sizeof(struct pxafb_info); fbi->fb.pseudo_palette = addr; - fbi->max_xres = inf->xres; - fbi->fb.var.xres = inf->xres; - fbi->fb.var.xres_virtual = inf->xres; - fbi->max_yres = inf->yres; - fbi->fb.var.yres = inf->yres; - fbi->fb.var.yres_virtual = inf->yres; - fbi->max_bpp = inf->bpp; - fbi->fb.var.bits_per_pixel = inf->bpp; - fbi->fb.var.pixclock = inf->pixclock; - fbi->fb.var.hsync_len = inf->hsync_len; - fbi->fb.var.left_margin = inf->left_margin; - fbi->fb.var.right_margin = inf->right_margin; - fbi->fb.var.vsync_len = inf->vsync_len; - fbi->fb.var.upper_margin = inf->upper_margin; - fbi->fb.var.lower_margin = inf->lower_margin; - fbi->fb.var.sync = inf->sync; - fbi->fb.var.grayscale = inf->cmap_greyscale; + pxafb_setmode(&fbi->fb.var, mode); + fbi->cmap_inverse = inf->cmap_inverse; fbi->cmap_static = inf->cmap_static; + fbi->lccr0 = inf->lccr0; fbi->lccr3 = inf->lccr3; fbi->state = C_STARTUP; fbi->task_state = (u_char)-1; - fbi->fb.fix.smem_len = fbi->max_xres * fbi->max_yres * - fbi->max_bpp / 8; + + for (i = 0; i < inf->num_modes; i++) { + smemlen = mode[i].xres * mode[i].yres * mode[i].bpp / 8; + if (smemlen > fbi->fb.fix.smem_len) + fbi->fb.fix.smem_len = smemlen; + } init_waitqueue_head(&fbi->ctrlr_wait); INIT_WORK(&fbi->task, pxafb_task, fbi); @@ -1307,12 +1357,12 @@ int __init pxafb_probe(struct platform_device *dev) (inf->lccr0 & LCCR0_SDS) == LCCR0_Dual) dev_warn(&dev->dev, "Dual panel only valid in passive mode\n"); if ((inf->lccr0 & LCCR0_PAS) == LCCR0_Pas && - (inf->upper_margin || inf->lower_margin)) + (inf->modes->upper_margin || inf->modes->lower_margin)) dev_warn(&dev->dev, "Upper and lower margins must be 0 in passive mode\n"); #endif - dev_dbg(&dev->dev, "got a %dx%dx%d LCD\n",inf->xres, inf->yres, inf->bpp); - if (inf->xres == 0 || inf->yres == 0 || inf->bpp == 0) { + dev_dbg(&dev->dev, "got a %dx%dx%d LCD\n",inf->modes->xres, inf->modes->yres, inf->modes->bpp); + if (inf->modes->xres == 0 || inf->modes->yres == 0 || inf->modes->bpp == 0) { dev_err(&dev->dev, "Invalid resolution or bit depth\n"); ret = -EINVAL; goto failed; diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h index 47f41f70db7a..7499a1c4bf79 100644 --- a/drivers/video/pxafb.h +++ b/drivers/video/pxafb.h @@ -41,10 +41,6 @@ struct pxafb_info { struct fb_info fb; struct device *dev; - u_int max_bpp; - u_int max_xres; - u_int max_yres; - /* * These are the addresses we mapped * the framebuffer memory region to. |