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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 06:20:54 +07:00
s3c2410fb: use new margin fields
This patch makes use of margins fields in the s3c2410fb_display structure. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt
Linus Torvalds
parent
1f4115376c
commit
9939a481cd
@ -197,6 +197,14 @@ static int s3c2410fb_check_var(struct fb_var_screeninfo *var,
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return -EINVAL;
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}
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/* it is always the size as the display */
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var->xres_virtual = display->xres;
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var->yres_virtual = display->yres;
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/* copy lcd settings */
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var->left_margin = display->left_margin;
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var->right_margin = display->right_margin;
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var->transp.offset = 0;
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var->transp.length = 0;
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/* set r/g/b positions */
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@ -270,125 +278,152 @@ static int s3c2410fb_check_var(struct fb_var_screeninfo *var,
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return 0;
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}
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/* s3c2410fb_activate_var
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/* s3c2410fb_calculate_stn_lcd_regs
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*
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* activate (set) the controller from the given framebuffer
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* information
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* calculate register values from var settings
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*/
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static void s3c2410fb_activate_var(struct fb_info *info,
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struct fb_var_screeninfo *var)
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static void s3c2410fb_calculate_stn_lcd_regs(const struct fb_info *info,
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struct s3c2410fb_hw *regs)
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{
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struct s3c2410fb_info *fbi = info->par;
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struct s3c2410fb_mach_info *mach_info = fbi->mach_info;
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struct s3c2410fb_display *display = mach_info->displays +
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fbi->current_display;
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int hs;
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fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_MODEMASK;
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fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_TFT;
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const struct s3c2410fb_info *fbi = info->par;
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const struct fb_var_screeninfo *var = &info->var;
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int type = regs->lcdcon1 & ~S3C2410_LCDCON1_TFT;
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int hs = var->xres >> 2;
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unsigned wdly = (var->left_margin >> 4) - 1;
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dprintk("%s: var->xres = %d\n", __FUNCTION__, var->xres);
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dprintk("%s: var->yres = %d\n", __FUNCTION__, var->yres);
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dprintk("%s: var->bpp = %d\n", __FUNCTION__, var->bits_per_pixel);
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if (type != S3C2410_LCDCON1_STN4)
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hs >>= 1;
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regs->lcdcon1 &= ~S3C2410_LCDCON1_MODEMASK;
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switch (var->bits_per_pixel) {
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case 1:
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regs->lcdcon1 |= S3C2410_LCDCON1_STN1BPP;
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break;
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case 2:
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regs->lcdcon1 |= S3C2410_LCDCON1_STN2GREY;
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break;
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case 4:
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regs->lcdcon1 |= S3C2410_LCDCON1_STN4GREY;
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break;
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case 8:
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regs->lcdcon1 |= S3C2410_LCDCON1_STN8BPP;
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hs *= 3;
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break;
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case 12:
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regs->lcdcon1 |= S3C2410_LCDCON1_STN12BPP;
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hs *= 3;
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break;
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default:
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/* invalid pixel depth */
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dev_err(fbi->dev, "invalid bpp %d\n",
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var->bits_per_pixel);
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}
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/* update X/Y info */
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dprintk("setting vert: up=%d, low=%d, sync=%d\n",
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var->upper_margin, var->lower_margin, var->vsync_len);
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dprintk("setting horz: lft=%d, rt=%d, sync=%d\n",
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var->left_margin, var->right_margin, var->hsync_len);
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regs->lcdcon2 &= ~S3C2410_LCDCON2_LINEVAL(0x3ff);
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regs->lcdcon2 |= S3C2410_LCDCON2_LINEVAL(var->yres - 1);
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if (wdly > 3)
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wdly = 3;
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regs->lcdcon3 = S3C2410_LCDCON3_WDLY(wdly) |
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S3C2410_LCDCON3_LINEBLANK(var->right_margin / 8) |
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S3C2410_LCDCON3_HOZVAL(hs - 1);
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}
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/* s3c2410fb_calculate_tft_lcd_regs
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*
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* calculate register values from var settings
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*/
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static void s3c2410fb_calculate_tft_lcd_regs(const struct fb_info *info,
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struct s3c2410fb_hw *regs)
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{
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const struct s3c2410fb_info *fbi = info->par;
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const struct fb_var_screeninfo *var = &info->var;
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dprintk("%s: var->xres = %d\n", __FUNCTION__, var->xres);
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dprintk("%s: var->yres = %d\n", __FUNCTION__, var->yres);
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dprintk("%s: var->bpp = %d\n", __FUNCTION__, var->bits_per_pixel);
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regs->lcdcon1 &= ~S3C2410_LCDCON1_MODEMASK;
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switch (var->bits_per_pixel) {
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case 1:
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regs->lcdcon1 |= S3C2410_LCDCON1_TFT1BPP;
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break;
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case 2:
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regs->lcdcon1 |= S3C2410_LCDCON1_TFT2BPP;
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break;
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case 4:
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regs->lcdcon1 |= S3C2410_LCDCON1_TFT4BPP;
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break;
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case 8:
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regs->lcdcon1 |= S3C2410_LCDCON1_TFT8BPP;
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break;
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case 16:
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regs->lcdcon1 |= S3C2410_LCDCON1_TFT16BPP;
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break;
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default:
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/* invalid pixel depth */
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dev_err(fbi->dev, "invalid bpp %d\n",
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var->bits_per_pixel);
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}
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/* update X/Y info */
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dprintk("setting vert: up=%d, low=%d, sync=%d\n",
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var->upper_margin, var->lower_margin, var->vsync_len);
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dprintk("setting horz: lft=%d, rt=%d, sync=%d\n",
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var->left_margin, var->right_margin, var->hsync_len);
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regs->lcdcon2 &= ~S3C2410_LCDCON2_LINEVAL(0x3ff);
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regs->lcdcon2 |= S3C2410_LCDCON2_LINEVAL(var->yres - 1);
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regs->lcdcon3 = S3C2410_LCDCON3_HBPD(var->right_margin - 1) |
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S3C2410_LCDCON3_HFPD(var->left_margin - 1) |
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S3C2410_LCDCON3_HOZVAL(var->xres - 1);
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}
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/* s3c2410fb_activate_var
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*
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* activate (set) the controller from the given framebuffer
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* information
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*/
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static void s3c2410fb_activate_var(struct fb_info *info)
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{
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struct s3c2410fb_info *fbi = info->par;
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struct fb_var_screeninfo *var = &info->var;
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struct s3c2410fb_mach_info *mach_info = fbi->mach_info;
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struct s3c2410fb_display *display = mach_info->displays +
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fbi->current_display;
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/* set display type */
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fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_TFT;
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fbi->regs.lcdcon1 |= display->type;
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if (display->type == S3C2410_LCDCON1_TFT)
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switch (var->bits_per_pixel) {
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case 1:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_TFT1BPP;
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break;
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case 2:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_TFT2BPP;
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break;
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case 4:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_TFT4BPP;
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break;
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case 8:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_TFT8BPP;
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break;
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case 16:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_TFT16BPP;
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break;
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default:
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/* invalid pixel depth */
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dev_err(fbi->dev, "invalid bpp %d\n",
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var->bits_per_pixel);
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}
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else
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switch (var->bits_per_pixel) {
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case 1:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_STN1BPP;
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break;
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case 2:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_STN2GREY;
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break;
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case 4:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_STN4GREY;
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break;
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case 8:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_STN8BPP;
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break;
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case 12:
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_STN12BPP;
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break;
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default:
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/* invalid pixel depth */
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dev_err(fbi->dev, "invalid bpp %d\n",
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var->bits_per_pixel);
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}
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/* check to see if we need to update sync/borders */
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if (!mach_info->fixed_syncs) {
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dprintk("setting vert: up=%d, low=%d, sync=%d\n",
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var->upper_margin, var->lower_margin, var->vsync_len);
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dprintk("setting horz: lft=%d, rt=%d, sync=%d\n",
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var->left_margin, var->right_margin, var->hsync_len);
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fbi->regs.lcdcon2 =
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S3C2410_LCDCON2_VBPD(var->upper_margin - 1) |
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S3C2410_LCDCON2_VFPD(var->lower_margin - 1) |
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S3C2410_LCDCON2_VSPW(var->vsync_len - 1);
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fbi->regs.lcdcon3 =
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S3C2410_LCDCON3_HBPD(var->right_margin - 1) |
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S3C2410_LCDCON3_HFPD(var->left_margin - 1);
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fbi->regs.lcdcon4 &= ~S3C2410_LCDCON4_HSPW(0xff);
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fbi->regs.lcdcon4 |= S3C2410_LCDCON4_HSPW(var->hsync_len - 1);
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}
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/* update X/Y info */
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fbi->regs.lcdcon2 &= ~S3C2410_LCDCON2_LINEVAL(0x3ff);
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fbi->regs.lcdcon2 |= S3C2410_LCDCON2_LINEVAL(var->yres - 1);
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switch (display->type) {
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case S3C2410_LCDCON1_DSCAN4:
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case S3C2410_LCDCON1_STN8:
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hs = var->xres / 8;
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break;
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case S3C2410_LCDCON1_STN4:
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hs = var->xres / 4;
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break;
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default:
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case S3C2410_LCDCON1_TFT:
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hs = var->xres;
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break;
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}
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/* Special cases : STN color displays */
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if (((fbi->regs.lcdcon1 & S3C2410_LCDCON1_MODEMASK) == S3C2410_LCDCON1_STN8BPP) ||
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((fbi->regs.lcdcon1 & S3C2410_LCDCON1_MODEMASK) == S3C2410_LCDCON1_STN12BPP))
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hs = hs * 3;
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fbi->regs.lcdcon3 &= ~S3C2410_LCDCON3_HOZVAL(0x7ff);
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fbi->regs.lcdcon3 |= S3C2410_LCDCON3_HOZVAL(hs - 1);
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if (var->pixclock > 0) {
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int clkdiv = s3c2410fb_calc_pixclk(fbi, var->pixclock);
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@ -406,6 +441,11 @@ static void s3c2410fb_activate_var(struct fb_info *info,
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fbi->regs.lcdcon1 |= S3C2410_LCDCON1_CLKVAL(clkdiv);
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}
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if (display->type == S3C2410_LCDCON1_TFT)
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s3c2410fb_calculate_tft_lcd_regs(info, &fbi->regs);
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else
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s3c2410fb_calculate_stn_lcd_regs(info, &fbi->regs);
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/* write new registers */
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dprintk("new register set:\n");
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@ -452,7 +492,7 @@ static int s3c2410fb_set_par(struct fb_info *info)
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/* activate this new configuration */
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s3c2410fb_activate_var(info, var);
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s3c2410fb_activate_var(info);
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return 0;
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}
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@ -848,6 +888,8 @@ static int __init s3c2410fb_probe(struct platform_device *pdev)
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fbinfo->var.yres = display->yres;
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fbinfo->var.yres_virtual = display->yres;
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fbinfo->var.bits_per_pixel = display->bpp;
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fbinfo->var.left_margin = display->left_margin;
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fbinfo->var.right_margin = display->right_margin;
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fbinfo->var.upper_margin =
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S3C2410_LCDCON2_GET_VBPD(mregs->lcdcon2) + 1;
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@ -856,10 +898,6 @@ static int __init s3c2410fb_probe(struct platform_device *pdev)
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fbinfo->var.vsync_len =
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S3C2410_LCDCON2_GET_VSPW(mregs->lcdcon2) + 1;
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fbinfo->var.left_margin =
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S3C2410_LCDCON3_GET_HFPD(mregs->lcdcon3) + 1;
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fbinfo->var.right_margin =
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S3C2410_LCDCON3_GET_HBPD(mregs->lcdcon3) + 1;
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fbinfo->var.hsync_len =
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S3C2410_LCDCON4_GET_HSPW(mregs->lcdcon4) + 1;
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