X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fvideo%2Fpxafb.c;h=b4947c810706c14c95d9406a51cebad10d20c47e;hb=refs%2Fheads%2Fvserver;hp=bfa3f8b58d2ac90e3738387f036c46e572c0a073;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index bfa3f8b58..b4947c810 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -22,7 +22,6 @@ * */ -#include #include #include #include @@ -36,14 +35,15 @@ #include #include #include -#include +#include #include #include #include #include -#include #include +#include +#include #include #include @@ -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); @@ -109,10 +109,13 @@ pxafb_setpalettereg(u_int regno, u_int red, u_int green, u_int blue, u_int val, ret = 1; if (regno < fbi->palette_size) { - val = ((red >> 0) & 0xf800); - val |= ((green >> 5) & 0x07e0); - val |= ((blue >> 11) & 0x001f); - + if (fbi->fb.var.grayscale) { + val = ((blue >> 8) & 0x00ff); + } else { + val = ((red >> 0) & 0xf800); + val |= ((green >> 5) & 0x07e0); + val |= ((blue >> 11) & 0x001f); + } fbi->palette_cpu[regno] = val; ret = 0; } @@ -150,7 +153,7 @@ pxafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, switch (fbi->fb.fix.visual) { case FB_VISUAL_TRUECOLOR: /* - * 12 or 16-bit True Colour. We encode the RGB value + * 16-bit True Colour. We encode the RGB value * according to the RGB bitfield information. */ if (regno < 16) { @@ -210,6 +213,48 @@ static unsigned int pxafb_display_dma_period(struct fb_var_screeninfo *var) 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, @@ -222,15 +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) - var->xres = fbi->max_xres; - if (var->yres > fbi->max_yres) - var->yres = fbi->max_yres; + + 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 = @@ -242,7 +301,7 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) * The pixel packing format is described on page 7-11 of the * PXA2XX Developer's Manual. */ - if ( var->bits_per_pixel == 16 ) { + if (var->bits_per_pixel == 16) { var->red.offset = 11; var->red.length = 5; var->green.offset = 5; var->green.length = 6; var->blue.offset = 0; var->blue.length = 5; @@ -256,9 +315,9 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) } #ifdef CONFIG_CPU_FREQ - DPRINTK("dma period = %d ps, clock = %d kHz\n", - pxafb_display_dma_period(var), - get_clk_frequency_khz(0)); + pr_debug("pxafb: dma period = %d ps, clock = %d kHz\n", + pxafb_display_dma_period(var), + get_clk_frequency_khz(0)); #endif return 0; @@ -266,7 +325,7 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) static inline void pxafb_set_truecolor(u_int is_true_color) { - DPRINTK("true_color = %d\n", is_true_color); + pr_debug("pxafb: true_color = %d\n", is_true_color); // do your machine-specific setup if needed } @@ -280,7 +339,7 @@ static int pxafb_set_par(struct fb_info *info) struct fb_var_screeninfo *var = &info->var; unsigned long palette_mem_size; - DPRINTK("set_par\n"); + pr_debug("pxafb: set_par\n"); if (var->bits_per_pixel == 16) fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR; @@ -297,11 +356,14 @@ static int pxafb_set_par(struct fb_info *info) fbi->fb.fix.line_length = var->xres_virtual * var->bits_per_pixel / 8; - fbi->palette_size = var->bits_per_pixel == 8 ? 256 : 16; + if (var->bits_per_pixel == 16) + fbi->palette_size = 0; + else + fbi->palette_size = var->bits_per_pixel == 1 ? 4 : 1 << var->bits_per_pixel; palette_mem_size = fbi->palette_size * sizeof(u16); - DPRINTK("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size); + pr_debug("pxafb: palette_mem_size = 0x%08lx\n", palette_mem_size); fbi->palette_cpu = (u16 *)(fbi->map_cpu + PAGE_SIZE - palette_mem_size); fbi->palette_dma = fbi->map_dma + PAGE_SIZE - palette_mem_size; @@ -311,6 +373,11 @@ static int pxafb_set_par(struct fb_info *info) */ pxafb_set_truecolor(fbi->fb.fix.visual == FB_VISUAL_TRUECOLOR); + if (fbi->fb.var.bits_per_pixel == 16) + fb_dealloc_cmap(&fbi->fb.cmap); + else + fb_alloc_cmap(&fbi->fb.cmap, 1<fb.var.bits_per_pixel, 0); + pxafb_activate_var(var, fbi); return 0; @@ -349,7 +416,7 @@ static int pxafb_set_par(struct fb_info *info) /* * pxafb_blank(): * Blank the display by setting all palette values to zero. Note, the - * 12 and 16 bpp modes don't really use the palette, so this will not + * 16 bpp mode does not really use the palette, so this will not * blank the display in all modes. */ static int pxafb_blank(int blank, struct fb_info *info) @@ -357,12 +424,13 @@ static int pxafb_blank(int blank, struct fb_info *info) struct pxafb_info *fbi = (struct pxafb_info *)info; int i; - DPRINTK("pxafb_blank: blank=%d\n", blank); + pr_debug("pxafb: blank=%d\n", blank); switch (blank) { - case VESA_POWERDOWN: - case VESA_VSYNC_SUSPEND: - case VESA_HSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + case FB_BLANK_VSYNC_SUSPEND: + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_NORMAL: if (fbi->fb.fix.visual == FB_VISUAL_PSEUDOCOLOR || fbi->fb.fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR) for (i = 0; i < fbi->palette_size; i++) @@ -372,16 +440,30 @@ static int pxafb_blank(int blank, struct fb_info *info) //TODO if (pxafb_blank_helper) pxafb_blank_helper(blank); break; - case VESA_NO_BLANKING: + case FB_BLANK_UNBLANK: //TODO if (pxafb_blank_helper) pxafb_blank_helper(blank); if (fbi->fb.fix.visual == FB_VISUAL_PSEUDOCOLOR || fbi->fb.fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR) - fb_set_cmap(&fbi->fb.cmap, 1, info); + fb_set_cmap(&fbi->fb.cmap, info); pxafb_schedule_work(fbi, C_ENABLE); } return 0; } +static int pxafb_mmap(struct fb_info *info, + struct vm_area_struct *vma) +{ + struct pxafb_info *fbi = (struct pxafb_info *)info; + unsigned long off = vma->vm_pgoff << PAGE_SHIFT; + + if (off < info->fix.smem_len) { + vma->vm_pgoff += 1; + return dma_mmap_writecombine(fbi->dev, vma, fbi->map_cpu, + fbi->map_dma, fbi->map_size); + } + return -EINVAL; +} + static struct fb_ops pxafb_ops = { .owner = THIS_MODULE, .fb_check_var = pxafb_check_var, @@ -391,7 +473,7 @@ static struct fb_ops pxafb_ops = { .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, .fb_blank = pxafb_blank, - .fb_cursor = soft_cursor, + .fb_mmap = pxafb_mmap, }; /* @@ -433,12 +515,42 @@ static inline unsigned int get_pcd(unsigned int pixclock) * speeds */ pcd = (unsigned long long)get_lcdclk_frequency_10khz() * pixclock; - pcd /= 100000000 * 2; + do_div(pcd, 100000000 * 2); /* no need for this, since we should subtract 1 anyway. they cancel */ /* pcd += 1; */ /* make up for integer math truncations */ return (unsigned int)pcd; } +/* + * Some touchscreens need hsync information from the video driver to + * function correctly. We export it here. + */ +static inline void set_hsync_time(struct pxafb_info *fbi, unsigned int pcd) +{ + unsigned long long htime; + + if ((pcd == 0) || (fbi->fb.var.hsync_len == 0)) { + fbi->hsync_time=0; + return; + } + + htime = (unsigned long long)get_lcdclk_frequency_10khz() * 10000; + do_div(htime, pcd * fbi->fb.var.hsync_len); + fbi->hsync_time = htime; +} + +unsigned long pxafb_get_hsync_time(struct device *dev) +{ + struct pxafb_info *fbi = dev_get_drvdata(dev); + + /* If display is blanked/suspended, hsync isn't active */ + if (!fbi || (fbi->state != C_ENABLE)) + return 0; + + return fbi->hsync_time; +} +EXPORT_SYMBOL(pxafb_get_hsync_time); + /* * pxafb_activate_var(): * Configures LCD Controller based on entries in var parameter. Settings are @@ -450,15 +562,15 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * u_long flags; u_int lines_per_panel, pcd = get_pcd(var->pixclock); - DPRINTK("Configuring PXA LCD\n"); + pr_debug("pxafb: Configuring PXA LCD\n"); - DPRINTK("var: xres=%d hslen=%d lm=%d rm=%d\n", - var->xres, var->hsync_len, - var->left_margin, var->right_margin); - DPRINTK("var: yres=%d vslen=%d um=%d bm=%d\n", - var->yres, var->vsync_len, - var->upper_margin, var->lower_margin); - DPRINTK("var: pixclock=%d pcd=%d\n", var->pixclock, pcd); + pr_debug("var: xres=%d hslen=%d lm=%d rm=%d\n", + var->xres, var->hsync_len, + var->left_margin, var->right_margin); + pr_debug("var: yres=%d vslen=%d um=%d bm=%d\n", + var->yres, var->vsync_len, + var->upper_margin, var->lower_margin); + pr_debug("var: pixclock=%d pcd=%d\n", var->pixclock, pcd); #if DEBUG_VAR if (var->xres < 16 || var->xres > 1024) @@ -514,7 +626,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * * the YRES parameter. */ lines_per_panel = var->yres; - if (fbi->lccr0 & LCCR0_SDS) + if ((fbi->lccr0 & LCCR0_SDS) == LCCR0_Dual) lines_per_panel /= 2; new_regs.lccr2 = @@ -531,10 +643,10 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * if (pcd) new_regs.lccr3 |= LCCR3_PixClkDiv(pcd); - DPRINTK("nlccr0 = 0x%08x\n", new_regs.lccr0); - DPRINTK("nlccr1 = 0x%08x\n", new_regs.lccr1); - DPRINTK("nlccr2 = 0x%08x\n", new_regs.lccr2); - DPRINTK("nlccr3 = 0x%08x\n", new_regs.lccr3); + pr_debug("nlccr0 = 0x%08x\n", new_regs.lccr0); + pr_debug("nlccr1 = 0x%08x\n", new_regs.lccr1); + pr_debug("nlccr2 = 0x%08x\n", new_regs.lccr2); + pr_debug("nlccr3 = 0x%08x\n", new_regs.lccr3); /* Update shadow copy atomically */ local_irq_save(flags); @@ -566,47 +678,44 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * fbi->dmadesc_palette_cpu->fidr = 0; fbi->dmadesc_palette_cpu->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL; - if( var->bits_per_pixel < 12) - { - /* assume any mode with <12 bpp is palette driven */ - fbi->dmadesc_palette_cpu->fdadr = fbi->dmadesc_fbhigh_dma; - fbi->dmadesc_fbhigh_cpu->fdadr = fbi->dmadesc_palette_dma; - fbi->fdadr0 = fbi->dmadesc_palette_dma; /* flips back and forth between pal and fbhigh */ - } - else - { + if (var->bits_per_pixel == 16) { /* palette shouldn't be loaded in true-color mode */ fbi->dmadesc_fbhigh_cpu->fdadr = fbi->dmadesc_fbhigh_dma; fbi->fdadr0 = fbi->dmadesc_fbhigh_dma; /* no pal just fbhigh */ /* init it to something, even though we won't be using it */ fbi->dmadesc_palette_cpu->fdadr = fbi->dmadesc_palette_dma; + } else { + fbi->dmadesc_palette_cpu->fdadr = fbi->dmadesc_fbhigh_dma; + fbi->dmadesc_fbhigh_cpu->fdadr = fbi->dmadesc_palette_dma; + fbi->fdadr0 = fbi->dmadesc_palette_dma; /* flips back and forth between pal and fbhigh */ } #if 0 - DPRINTK("fbi->dmadesc_fblow_cpu = 0x%p\n", fbi->dmadesc_fblow_cpu); - DPRINTK("fbi->dmadesc_fbhigh_cpu = 0x%p\n", fbi->dmadesc_fbhigh_cpu); - DPRINTK("fbi->dmadesc_palette_cpu = 0x%p\n", fbi->dmadesc_palette_cpu); - DPRINTK("fbi->dmadesc_fblow_dma = 0x%x\n", fbi->dmadesc_fblow_dma); - DPRINTK("fbi->dmadesc_fbhigh_dma = 0x%x\n", fbi->dmadesc_fbhigh_dma); - DPRINTK("fbi->dmadesc_palette_dma = 0x%x\n", fbi->dmadesc_palette_dma); - - DPRINTK("fbi->dmadesc_fblow_cpu->fdadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fdadr); - DPRINTK("fbi->dmadesc_fbhigh_cpu->fdadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fdadr); - DPRINTK("fbi->dmadesc_palette_cpu->fdadr = 0x%x\n", fbi->dmadesc_palette_cpu->fdadr); - - DPRINTK("fbi->dmadesc_fblow_cpu->fsadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fsadr); - DPRINTK("fbi->dmadesc_fbhigh_cpu->fsadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fsadr); - DPRINTK("fbi->dmadesc_palette_cpu->fsadr = 0x%x\n", fbi->dmadesc_palette_cpu->fsadr); - - DPRINTK("fbi->dmadesc_fblow_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fblow_cpu->ldcmd); - DPRINTK("fbi->dmadesc_fbhigh_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fbhigh_cpu->ldcmd); - DPRINTK("fbi->dmadesc_palette_cpu->ldcmd = 0x%x\n", fbi->dmadesc_palette_cpu->ldcmd); + pr_debug("fbi->dmadesc_fblow_cpu = 0x%p\n", fbi->dmadesc_fblow_cpu); + pr_debug("fbi->dmadesc_fbhigh_cpu = 0x%p\n", fbi->dmadesc_fbhigh_cpu); + pr_debug("fbi->dmadesc_palette_cpu = 0x%p\n", fbi->dmadesc_palette_cpu); + pr_debug("fbi->dmadesc_fblow_dma = 0x%x\n", fbi->dmadesc_fblow_dma); + pr_debug("fbi->dmadesc_fbhigh_dma = 0x%x\n", fbi->dmadesc_fbhigh_dma); + pr_debug("fbi->dmadesc_palette_dma = 0x%x\n", fbi->dmadesc_palette_dma); + + pr_debug("fbi->dmadesc_fblow_cpu->fdadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fdadr); + pr_debug("fbi->dmadesc_fbhigh_cpu->fdadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fdadr); + pr_debug("fbi->dmadesc_palette_cpu->fdadr = 0x%x\n", fbi->dmadesc_palette_cpu->fdadr); + + pr_debug("fbi->dmadesc_fblow_cpu->fsadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fsadr); + pr_debug("fbi->dmadesc_fbhigh_cpu->fsadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fsadr); + pr_debug("fbi->dmadesc_palette_cpu->fsadr = 0x%x\n", fbi->dmadesc_palette_cpu->fsadr); + + pr_debug("fbi->dmadesc_fblow_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fblow_cpu->ldcmd); + pr_debug("fbi->dmadesc_fbhigh_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fbhigh_cpu->ldcmd); + pr_debug("fbi->dmadesc_palette_cpu->ldcmd = 0x%x\n", fbi->dmadesc_palette_cpu->ldcmd); #endif fbi->reg_lccr0 = new_regs.lccr0; fbi->reg_lccr1 = new_regs.lccr1; fbi->reg_lccr2 = new_regs.lccr2; fbi->reg_lccr3 = new_regs.lccr3; + set_hsync_time(fbi, pcd); local_irq_restore(flags); /* @@ -629,7 +738,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * */ static inline void __pxafb_backlight_power(struct pxafb_info *fbi, int on) { - DPRINTK("backlight o%s\n", on ? "n" : "ff"); + pr_debug("pxafb: backlight o%s\n", on ? "n" : "ff"); if (pxafb_backlight_power) pxafb_backlight_power(on); @@ -637,14 +746,15 @@ static inline void __pxafb_backlight_power(struct pxafb_info *fbi, int on) static inline void __pxafb_lcd_power(struct pxafb_info *fbi, int on) { - DPRINTK("LCD power o%s\n", on ? "n" : "ff"); + 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) { + int gpio, ldd_bits; unsigned int lccr0 = fbi->lccr0; /* @@ -655,60 +765,45 @@ static void pxafb_setup_gpio(struct pxafb_info *fbi) if ((lccr0 & LCCR0_CMS) == LCCR0_Mono && (lccr0 & LCCR0_SDS) == LCCR0_Sngl && (lccr0 & LCCR0_DPD) == LCCR0_4PixMono) - { - // bits 58-61 - GPDR1 |= (0xf << 26); - GAFR1_U = (GAFR1_U & ~(0xff << 20)) | (0xaa << 20); - - // bits 74-77 - GPDR2 |= (0xf << 10); - GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20); - } + ldd_bits = 4; /* 8 bit interface */ else if (((lccr0 & LCCR0_CMS) == LCCR0_Mono && ((lccr0 & LCCR0_SDS) == LCCR0_Dual || (lccr0 & LCCR0_DPD) == LCCR0_8PixMono)) || ((lccr0 & LCCR0_CMS) == LCCR0_Color && (lccr0 & LCCR0_PAS) == LCCR0_Pas && (lccr0 & LCCR0_SDS) == LCCR0_Sngl)) - { - // bits 58-65 - GPDR1 |= (0x3f << 26); - GPDR2 |= (0x3); - - GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20); - GAFR2_L = (GAFR2_L & ~0xf) | (0xa); - - // bits 74-77 - GPDR2 |= (0xf << 10); - GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20); - } + ldd_bits = 8; /* 16 bit interface */ else if ((lccr0 & LCCR0_CMS) == LCCR0_Color && ((lccr0 & LCCR0_SDS) == LCCR0_Dual || (lccr0 & LCCR0_PAS) == LCCR0_Act)) - { - // bits 58-77 - GPDR1 |= (0x3f << 26); - GPDR2 |= 0x00003fff; - - GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20); - GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa; - } + ldd_bits = 16; else { - printk( KERN_ERR "pxafb_setup_gpio: unable to determine bits per pixel\n"); + printk(KERN_ERR "pxafb_setup_gpio: unable to determine bits per pixel\n"); + return; } + + for (gpio = 58; ldd_bits; gpio++, ldd_bits--) + pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT); + pxa_gpio_mode(GPIO74_LCD_FCLK_MD); + pxa_gpio_mode(GPIO75_LCD_LCLK_MD); + pxa_gpio_mode(GPIO76_LCD_PCLK_MD); + pxa_gpio_mode(GPIO77_LCD_ACBIAS_MD); } static void pxafb_enable_controller(struct pxafb_info *fbi) { - DPRINTK("Enabling LCD controller\n"); - DPRINTK("fdadr0 0x%08x\n", (unsigned int) fbi->fdadr0); - DPRINTK("fdadr1 0x%08x\n", (unsigned int) fbi->fdadr1); - DPRINTK("reg_lccr0 0x%08x\n", (unsigned int) fbi->reg_lccr0); - DPRINTK("reg_lccr1 0x%08x\n", (unsigned int) fbi->reg_lccr1); - DPRINTK("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2); - DPRINTK("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3); + pr_debug("pxafb: Enabling LCD controller\n"); + pr_debug("fdadr0 0x%08x\n", (unsigned int) fbi->fdadr0); + pr_debug("fdadr1 0x%08x\n", (unsigned int) fbi->fdadr1); + pr_debug("reg_lccr0 0x%08x\n", (unsigned int) fbi->reg_lccr0); + pr_debug("reg_lccr1 0x%08x\n", (unsigned int) fbi->reg_lccr1); + pr_debug("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2); + pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3); + + /* enable LCD controller clock */ + pxa_set_cken(CKEN16_LCD, 1); /* Sequence from 11.7.10 */ LCCR3 = fbi->reg_lccr3; @@ -720,35 +815,38 @@ static void pxafb_enable_controller(struct pxafb_info *fbi) FDADR1 = fbi->fdadr1; LCCR0 |= LCCR0_ENB; - DPRINTK("FDADR0 0x%08x\n", (unsigned int) FDADR0); - DPRINTK("FDADR1 0x%08x\n", (unsigned int) FDADR1); - DPRINTK("LCCR0 0x%08x\n", (unsigned int) LCCR0); - DPRINTK("LCCR1 0x%08x\n", (unsigned int) LCCR1); - DPRINTK("LCCR2 0x%08x\n", (unsigned int) LCCR2); - DPRINTK("LCCR3 0x%08x\n", (unsigned int) LCCR3); + pr_debug("FDADR0 0x%08x\n", (unsigned int) FDADR0); + pr_debug("FDADR1 0x%08x\n", (unsigned int) FDADR1); + pr_debug("LCCR0 0x%08x\n", (unsigned int) LCCR0); + pr_debug("LCCR1 0x%08x\n", (unsigned int) LCCR1); + pr_debug("LCCR2 0x%08x\n", (unsigned int) LCCR2); + pr_debug("LCCR3 0x%08x\n", (unsigned int) LCCR3); } static void pxafb_disable_controller(struct pxafb_info *fbi) { DECLARE_WAITQUEUE(wait, current); - DPRINTK("Disabling LCD controller\n"); + pr_debug("pxafb: disabling LCD controller\n"); - add_wait_queue(&fbi->ctrlr_wait, &wait); set_current_state(TASK_UNINTERRUPTIBLE); + add_wait_queue(&fbi->ctrlr_wait, &wait); LCSR = 0xffffffff; /* Clear LCD Status Register */ LCCR0 &= ~LCCR0_LDM; /* Enable LCD Disable Done Interrupt */ LCCR0 |= LCCR0_DIS; /* Disable LCD Controller */ - schedule_timeout(20 * HZ / 1000); + schedule_timeout(200 * HZ / 1000); remove_wait_queue(&fbi->ctrlr_wait, &wait); + + /* disable LCD controller clock */ + pxa_set_cken(CKEN16_LCD, 0); } /* * pxafb_handle_irq: Handle 'LCD DONE' interrupts. */ -static irqreturn_t pxafb_handle_irq(int irq, void *dev_id, struct pt_regs *regs) +static irqreturn_t pxafb_handle_irq(int irq, void *dev_id) { struct pxafb_info *fbi = dev_id; unsigned int lcsr = LCSR; @@ -827,9 +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; @@ -864,9 +964,10 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) * Our LCD controller task (which is called when we blank or unblank) * via keventd. */ -static void pxafb_task(void *dummy) +static void pxafb_task(struct work_struct *work) { - struct pxafb_info *fbi = dummy; + struct pxafb_info *fbi = + container_of(work, struct pxafb_info, task); u_int state = xchg(&fbi->task_state, -1); set_ctrlr_state(fbi, state); @@ -894,6 +995,7 @@ pxafb_freq_transition(struct notifier_block *nb, unsigned long val, void *data) case CPUFREQ_POSTCHANGE: pcd = get_pcd(fbi->fb.var.pixclock); + set_hsync_time(fbi, pcd); fbi->reg_lccr3 = (fbi->reg_lccr3 & ~0xff) | LCCR3_PixClkDiv(pcd); set_ctrlr_state(fbi, C_ENABLE_CLKCHANGE); break; @@ -936,21 +1038,19 @@ pxafb_freq_policy(struct notifier_block *nb, unsigned long val, void *data) * Power management hooks. Note that we won't be called from IRQ context, * unlike the blank functions above, so we may sleep. */ -static int pxafb_suspend(struct device *dev, u32 state, u32 level) +static int pxafb_suspend(struct platform_device *dev, pm_message_t state) { - struct pxafb_info *fbi = dev_get_drvdata(dev); + struct pxafb_info *fbi = platform_get_drvdata(dev); - if (level == SUSPEND_DISABLE || level == SUSPEND_POWER_DOWN) - set_ctrlr_state(fbi, C_DISABLE_PM); + set_ctrlr_state(fbi, C_DISABLE_PM); return 0; } -static int pxafb_resume(struct device *dev, u32 level) +static int pxafb_resume(struct platform_device *dev) { - struct pxafb_info *fbi = dev_get_drvdata(dev); + struct pxafb_info *fbi = platform_get_drvdata(dev); - if (level == RESUME_ENABLE) - set_ctrlr_state(fbi, C_ENABLE_PM); + set_ctrlr_state(fbi, C_ENABLE_PM); return 0; } #else @@ -994,7 +1094,7 @@ static int __init pxafb_map_video_memory(struct pxafb_info *fbi) fbi->palette_size = fbi->fb.var.bits_per_pixel == 8 ? 256 : 16; palette_mem_size = fbi->palette_size * sizeof(u16); - DPRINTK("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size); + pr_debug("pxafb: palette_mem_size = 0x%08lx\n", palette_mem_size); fbi->palette_cpu = (u16 *)(fbi->map_cpu + PAGE_SIZE - palette_mem_size); fbi->palette_dma = fbi->map_dma + PAGE_SIZE - palette_mem_size; @@ -1008,9 +1108,11 @@ 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) * 17, GFP_KERNEL); + fbi = kmalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL); if (!fbi) return NULL; @@ -1034,42 +1136,31 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) fbi->fb.var.vmode = FB_VMODE_NONINTERLACED; fbi->fb.fbops = &pxafb_ops; - fbi->fb.flags = FBINFO_FLAG_DEFAULT; + fbi->fb.flags = FBINFO_DEFAULT; fbi->fb.node = -1; - fbi->fb.currcon = -1; addr = fbi; 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); + INIT_WORK(&fbi->task, pxafb_task); init_MUTEX(&fbi->ctrlr_sem); return fbi; @@ -1123,62 +1214,62 @@ static int __init pxafb_parse_options(struct device *dev, char *options) res_specified = 1; } done: - if ( res_specified ) { - dev_info(dev, "overriding resolution: %dx%x\n", xres, yres); - inf->xres = xres; inf->yres = yres; + if (res_specified) { + dev_info(dev, "overriding resolution: %dx%d\n", xres, yres); + inf->modes[0].xres = xres; inf->modes[0].yres = yres; } - if ( bpp_specified ) + if (bpp_specified) switch (bpp) { case 1: case 2: case 4: case 8: case 16: - inf->bpp = bpp; + inf->modes[0].bpp = bpp; dev_info(dev, "overriding bit depth: %d\n", bpp); break; default: dev_err(dev, "Depth %d is not valid\n", bpp); } } else if (!strncmp(this_opt, "pixclock:", 9)) { - inf->pixclock = simple_strtoul(this_opt+9, NULL, 0); - dev_info(dev, "override pixclock: %u\n", inf->pixclock); + inf->modes[0].pixclock = simple_strtoul(this_opt+9, NULL, 0); + dev_info(dev, "override pixclock: %ld\n", inf->modes[0].pixclock); } else if (!strncmp(this_opt, "left:", 5)) { - inf->left_margin = simple_strtoul(this_opt+5, NULL, 0); - dev_info(dev, "override left: %u\n", inf->left_margin); + inf->modes[0].left_margin = simple_strtoul(this_opt+5, NULL, 0); + dev_info(dev, "override left: %u\n", inf->modes[0].left_margin); } else if (!strncmp(this_opt, "right:", 6)) { - inf->right_margin = simple_strtoul(this_opt+6, NULL, 0); - dev_info(dev, "override right: %u\n", inf->right_margin); + inf->modes[0].right_margin = simple_strtoul(this_opt+6, NULL, 0); + dev_info(dev, "override right: %u\n", inf->modes[0].right_margin); } else if (!strncmp(this_opt, "upper:", 6)) { - inf->upper_margin = simple_strtoul(this_opt+6, NULL, 0); - dev_info(dev, "override upper: %u\n", inf->upper_margin); + inf->modes[0].upper_margin = simple_strtoul(this_opt+6, NULL, 0); + dev_info(dev, "override upper: %u\n", inf->modes[0].upper_margin); } else if (!strncmp(this_opt, "lower:", 6)) { - inf->lower_margin = simple_strtoul(this_opt+6, NULL, 0); - dev_info(dev, "override lower: %u\n", inf->lower_margin); + inf->modes[0].lower_margin = simple_strtoul(this_opt+6, NULL, 0); + dev_info(dev, "override lower: %u\n", inf->modes[0].lower_margin); } else if (!strncmp(this_opt, "hsynclen:", 9)) { - inf->hsync_len = simple_strtoul(this_opt+9, NULL, 0); - dev_info(dev, "override hsynclen: %u\n", inf->hsync_len); + inf->modes[0].hsync_len = simple_strtoul(this_opt+9, NULL, 0); + dev_info(dev, "override hsynclen: %u\n", inf->modes[0].hsync_len); } else if (!strncmp(this_opt, "vsynclen:", 9)) { - inf->vsync_len = simple_strtoul(this_opt+9, NULL, 0); - dev_info(dev, "override vsynclen: %u\n", inf->vsync_len); + inf->modes[0].vsync_len = simple_strtoul(this_opt+9, NULL, 0); + dev_info(dev, "override vsynclen: %u\n", inf->modes[0].vsync_len); } else if (!strncmp(this_opt, "hsync:", 6)) { - if ( simple_strtoul(this_opt+6, NULL, 0) == 0 ) { + if (simple_strtoul(this_opt+6, NULL, 0) == 0) { dev_info(dev, "override hsync: Active Low\n"); - inf->sync &= ~FB_SYNC_HOR_HIGH_ACT; + inf->modes[0].sync &= ~FB_SYNC_HOR_HIGH_ACT; } else { dev_info(dev, "override hsync: Active High\n"); - inf->sync |= FB_SYNC_HOR_HIGH_ACT; + inf->modes[0].sync |= FB_SYNC_HOR_HIGH_ACT; } } else if (!strncmp(this_opt, "vsync:", 6)) { - if ( simple_strtoul(this_opt+6, NULL, 0) == 0 ) { + if (simple_strtoul(this_opt+6, NULL, 0) == 0) { dev_info(dev, "override vsync: Active Low\n"); - inf->sync &= ~FB_SYNC_VERT_HIGH_ACT; + inf->modes[0].sync &= ~FB_SYNC_VERT_HIGH_ACT; } else { dev_info(dev, "override vsync: Active High\n"); - inf->sync |= FB_SYNC_VERT_HIGH_ACT; + inf->modes[0].sync |= FB_SYNC_VERT_HIGH_ACT; } } else if (!strncmp(this_opt, "dpc:", 4)) { - if ( simple_strtoul(this_opt+4, NULL, 0) == 0 ) { + if (simple_strtoul(this_opt+4, NULL, 0) == 0) { dev_info(dev, "override double pixel clock: false\n"); inf->lccr3 &= ~LCCR3_DPC; } else { @@ -1186,20 +1277,20 @@ static int __init pxafb_parse_options(struct device *dev, char *options) inf->lccr3 |= LCCR3_DPC; } } else if (!strncmp(this_opt, "outputen:", 9)) { - if ( simple_strtoul(this_opt+9, NULL, 0) == 0 ) { + if (simple_strtoul(this_opt+9, NULL, 0) == 0) { dev_info(dev, "override output enable: active low\n"); - inf->lccr3 = ( inf->lccr3 & ~LCCR3_OEP ) | LCCR3_OutEnL; + inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) | LCCR3_OutEnL; } else { dev_info(dev, "override output enable: active high\n"); - inf->lccr3 = ( inf->lccr3 & ~LCCR3_OEP ) | LCCR3_OutEnH; + inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) | LCCR3_OutEnH; } } else if (!strncmp(this_opt, "pixclockpol:", 12)) { - if ( simple_strtoul(this_opt+12, NULL, 0) == 0 ) { + if (simple_strtoul(this_opt+12, NULL, 0) == 0) { dev_info(dev, "override pixel clock polarity: falling edge\n"); - inf->lccr3 = ( inf->lccr3 & ~LCCR3_PCP ) | LCCR3_PixFlEdg; + inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) | LCCR3_PixFlEdg; } else { dev_info(dev, "override pixel clock polarity: rising edge\n"); - inf->lccr3 = ( inf->lccr3 & ~LCCR3_PCP ) | LCCR3_PixRsEdg; + inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) | LCCR3_PixRsEdg; } } else if (!strncmp(this_opt, "color", 5)) { inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) | LCCR0_Color; @@ -1227,24 +1318,23 @@ static int __init pxafb_parse_options(struct device *dev, char *options) } #endif -int __init pxafb_probe(struct device *dev) +int __init pxafb_probe(struct platform_device *dev) { struct pxafb_info *fbi; struct pxafb_mach_info *inf; - unsigned long flags; int ret; - dev_dbg(dev, "pxafb_probe\n"); + dev_dbg(&dev->dev, "pxafb_probe\n"); - inf = dev->platform_data; + inf = dev->dev.platform_data; ret = -ENOMEM; fbi = NULL; if (!inf) goto failed; #ifdef CONFIG_FB_PXA_PARAMETERS - ret = pxafb_parse_options(dev, g_options); - if ( ret < 0 ) + ret = pxafb_parse_options(&dev->dev, g_options); + if (ret < 0) goto failed; #endif @@ -1252,37 +1342,37 @@ int __init pxafb_probe(struct device *dev) /* Check for various illegal bit-combinations. Currently only * a warning is given. */ - if ( inf->lccr0 & LCCR0_INVALID_CONFIG_MASK ) - dev_warn(dev, "machine LCCR0 setting contains illegal bits: %08x\n", + if (inf->lccr0 & LCCR0_INVALID_CONFIG_MASK) + dev_warn(&dev->dev, "machine LCCR0 setting contains illegal bits: %08x\n", inf->lccr0 & LCCR0_INVALID_CONFIG_MASK); - if ( inf->lccr3 & LCCR3_INVALID_CONFIG_MASK ) - dev_warn(dev, "machine LCCR3 setting contains illegal bits: %08x\n", + if (inf->lccr3 & LCCR3_INVALID_CONFIG_MASK) + dev_warn(&dev->dev, "machine LCCR3 setting contains illegal bits: %08x\n", inf->lccr3 & LCCR3_INVALID_CONFIG_MASK); - if ( inf->lccr0 & LCCR0_DPD && - ( ( inf->lccr0 & LCCR0_PAS ) != LCCR0_Pas || - ( inf->lccr0 & LCCR0_SDS ) != LCCR0_Sngl || - ( inf->lccr0 & LCCR0_CMS ) != LCCR0_Mono ) ) - dev_warn(dev, "Double Pixel Data (DPD) mode is only valid in passive mono" + if (inf->lccr0 & LCCR0_DPD && + ((inf->lccr0 & LCCR0_PAS) != LCCR0_Pas || + (inf->lccr0 & LCCR0_SDS) != LCCR0_Sngl || + (inf->lccr0 & LCCR0_CMS) != LCCR0_Mono)) + dev_warn(&dev->dev, "Double Pixel Data (DPD) mode is only valid in passive mono" " single panel mode\n"); - if ( (inf->lccr0 & LCCR0_PAS) == LCCR0_Act && - ( inf->lccr0 & LCCR0_SDS ) == LCCR0_Dual ) - dev_warn(dev, "Dual panel only valid in passive mode\n"); - if ( (inf->lccr0 & LCCR0_PAS ) == LCCR0_Pas && - (inf->upper_margin || inf->lower_margin) ) - dev_warn(dev, "Upper and lower margins must be 0 in passive mode\n"); + if ((inf->lccr0 & LCCR0_PAS) == LCCR0_Act && + (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->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, "got a %dx%dx%d LCD\n",inf->xres, inf->yres, inf->bpp); - if (inf->xres == 0 || inf->yres == 0 || inf->bpp == 0) { - dev_err(dev, "Invalid resolution or bit depth\n"); + 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; } pxafb_backlight_power = inf->pxafb_backlight_power; pxafb_lcd_power = inf->pxafb_lcd_power; - fbi = pxafb_init_fbinfo(dev); + fbi = pxafb_init_fbinfo(&dev->dev); if (!fbi) { - dev_err(dev, "Failed to initialize framebuffer device\n"); + dev_err(&dev->dev, "Failed to initialize framebuffer device\n"); ret = -ENOMEM; // only reason for pxafb_init_fbinfo to fail is kmalloc goto failed; } @@ -1290,18 +1380,14 @@ int __init pxafb_probe(struct device *dev) /* Initialize video memory */ ret = pxafb_map_video_memory(fbi); if (ret) { - dev_err(dev, "Failed to allocate video RAM: %d\n", ret); + dev_err(&dev->dev, "Failed to allocate video RAM: %d\n", ret); ret = -ENOMEM; goto failed; } - /* enable LCD controller clock */ - local_irq_save(flags); - CKEN |= CKEN16_LCD; - local_irq_restore(flags); - ret = request_irq(IRQ_LCD, pxafb_handle_irq, SA_INTERRUPT, "LCD", fbi); + ret = request_irq(IRQ_LCD, pxafb_handle_irq, IRQF_DISABLED, "LCD", fbi); if (ret) { - dev_err(dev, "request_irq failed: %d\n", ret); + dev_err(&dev->dev, "request_irq failed: %d\n", ret); ret = -EBUSY; goto failed; } @@ -1313,11 +1399,11 @@ int __init pxafb_probe(struct device *dev) pxafb_check_var(&fbi->fb.var, &fbi->fb); pxafb_set_par(&fbi->fb); - dev_set_drvdata(dev, fbi); + platform_set_drvdata(dev, fbi); ret = register_framebuffer(&fbi->fb); if (ret < 0) { - dev_err(dev, "Failed to register framebuffer device: %d\n", ret); + dev_err(&dev->dev, "Failed to register framebuffer device: %d\n", ret); goto failed; } @@ -1340,42 +1426,51 @@ int __init pxafb_probe(struct device *dev) return 0; failed: - dev_set_drvdata(dev, NULL); - if (fbi) - kfree(fbi); + platform_set_drvdata(dev, NULL); + kfree(fbi); return ret; } -static struct device_driver pxafb_driver = { - .name = "pxafb", - .bus = &platform_bus_type, +static struct platform_driver pxafb_driver = { .probe = pxafb_probe, #ifdef CONFIG_PM .suspend = pxafb_suspend, .resume = pxafb_resume, #endif + .driver = { + .name = "pxa2xx-fb", + }, }; -int __devinit pxafb_init(void) -{ - return driver_register(&pxafb_driver); -} - #ifndef MODULE int __devinit pxafb_setup(char *options) { # ifdef CONFIG_FB_PXA_PARAMETERS - strlcpy(g_options, options, sizeof(g_options)); + if (options) + strlcpy(g_options, options, sizeof(g_options)); # endif return 0; } #else -module_init(pxafb_init); # ifdef CONFIG_FB_PXA_PARAMETERS module_param_string(options, g_options, sizeof(g_options), 0); MODULE_PARM_DESC(options, "LCD parameters (see Documentation/fb/pxafb.txt)"); # endif #endif +int __devinit pxafb_init(void) +{ +#ifndef MODULE + char *option = NULL; + + if (fb_get_options("pxafb", &option)) + return -ENODEV; + pxafb_setup(option); +#endif + return platform_driver_register(&pxafb_driver); +} + +module_init(pxafb_init); + MODULE_DESCRIPTION("loadable framebuffer driver for PXA"); MODULE_LICENSE("GPL");