imxfb: Add support for multiple displays
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
parent
d6b5150288
commit
343684ffb7
|
@ -183,20 +183,29 @@ void lcd_power(int on)
|
|||
__raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
|
||||
}
|
||||
|
||||
static struct imx_fb_videomode mx27ads_modes[] = {
|
||||
{
|
||||
.mode = {
|
||||
.name = "Sharp-LQ035Q7",
|
||||
.refresh = 60,
|
||||
.xres = 240,
|
||||
.yres = 320,
|
||||
.pixclock = 188679, /* in ps (5.3MHz) */
|
||||
.hsync_len = 1,
|
||||
.left_margin = 9,
|
||||
.right_margin = 16,
|
||||
.vsync_len = 1,
|
||||
.upper_margin = 7,
|
||||
.lower_margin = 9,
|
||||
},
|
||||
.bpp = 16,
|
||||
.pcr = 0xFB008BC0,
|
||||
},
|
||||
};
|
||||
|
||||
static struct imx_fb_platform_data mx27ads_fb_data = {
|
||||
.pixclock = 188679,
|
||||
.xres = 240,
|
||||
.yres = 320,
|
||||
|
||||
.bpp = 16,
|
||||
.hsync_len = 1,
|
||||
.left_margin = 9,
|
||||
.right_margin = 16,
|
||||
|
||||
.vsync_len = 1,
|
||||
.upper_margin = 7,
|
||||
.lower_margin = 9,
|
||||
.fixed_screen_cpu = 0,
|
||||
.mode = mx27ads_modes,
|
||||
.num_modes = ARRAY_SIZE(mx27ads_modes),
|
||||
|
||||
/*
|
||||
* - HSYNC active high
|
||||
|
@ -207,7 +216,6 @@ static struct imx_fb_platform_data mx27ads_fb_data = {
|
|||
* - data enable low active
|
||||
* - enable sharp mode
|
||||
*/
|
||||
.pcr = 0xFB008BC0,
|
||||
.pwmr = 0x00A903FF,
|
||||
.lscr1 = 0x00120300,
|
||||
.dmacr = 0x00020010,
|
||||
|
|
|
@ -125,35 +125,64 @@ static struct imxmmc_platform_data sdhc_pdata = {
|
|||
.exit = pcm970_sdhc2_exit,
|
||||
};
|
||||
|
||||
/*
|
||||
* Connected is a portrait Sharp-QVGA display
|
||||
* of type: LQ035Q7DH06
|
||||
*/
|
||||
static struct imx_fb_videomode pcm970_modes[] = {
|
||||
{
|
||||
.mode = {
|
||||
.name = "Sharp-LQ035Q7",
|
||||
.refresh = 60,
|
||||
.xres = 240,
|
||||
.yres = 320,
|
||||
.pixclock = 188679, /* in ps (5.3MHz) */
|
||||
.hsync_len = 7,
|
||||
.left_margin = 5,
|
||||
.right_margin = 16,
|
||||
.vsync_len = 1,
|
||||
.upper_margin = 7,
|
||||
.lower_margin = 9,
|
||||
},
|
||||
/*
|
||||
* - HSYNC active high
|
||||
* - VSYNC active high
|
||||
* - clk notenabled while idle
|
||||
* - clock not inverted
|
||||
* - data not inverted
|
||||
* - data enable low active
|
||||
* - enable sharp mode
|
||||
*/
|
||||
.pcr = 0xF00080C0,
|
||||
.bpp = 16,
|
||||
}, {
|
||||
.mode = {
|
||||
.name = "TX090",
|
||||
.refresh = 60,
|
||||
.xres = 240,
|
||||
.yres = 320,
|
||||
.pixclock = 38255,
|
||||
.left_margin = 144,
|
||||
.right_margin = 0,
|
||||
.upper_margin = 7,
|
||||
.lower_margin = 40,
|
||||
.hsync_len = 96,
|
||||
.vsync_len = 1,
|
||||
},
|
||||
/*
|
||||
* - HSYNC active low (1 << 22)
|
||||
* - VSYNC active low (1 << 23)
|
||||
* - clk notenabled while idle
|
||||
* - clock not inverted
|
||||
* - data not inverted
|
||||
* - data enable low active
|
||||
* - enable sharp mode
|
||||
*/
|
||||
.pcr = 0xF0008080 | (1<<22) | (1<<23) | (1<<19),
|
||||
.bpp = 32,
|
||||
},
|
||||
};
|
||||
|
||||
static struct imx_fb_platform_data pcm038_fb_data = {
|
||||
.pixclock = 188679, /* in ps (5.3MHz) */
|
||||
.xres = 240,
|
||||
.yres = 320,
|
||||
.mode = pcm970_modes,
|
||||
.num_modes = ARRAY_SIZE(pcm970_modes),
|
||||
|
||||
.bpp = 16,
|
||||
.hsync_len = 7,
|
||||
.left_margin = 5,
|
||||
.right_margin = 16,
|
||||
|
||||
.vsync_len = 1,
|
||||
.upper_margin = 7,
|
||||
.lower_margin = 9,
|
||||
.fixed_screen_cpu = 0,
|
||||
|
||||
/*
|
||||
* - HSYNC active high
|
||||
* - VSYNC active high
|
||||
* - clk notenabled while idle
|
||||
* - clock not inverted
|
||||
* - data not inverted
|
||||
* - data enable low active
|
||||
* - enable sharp mode
|
||||
*/
|
||||
.pcr = 0xFA0080C0,
|
||||
.pwmr = 0x00A903FF,
|
||||
.lscr1 = 0x00120300,
|
||||
.dmacr = 0x00020010,
|
||||
|
|
|
@ -2,6 +2,8 @@
|
|||
* This structure describes the machine which we are running on.
|
||||
*/
|
||||
|
||||
#include <linux/fb.h>
|
||||
|
||||
#define PCR_TFT (1 << 31)
|
||||
#define PCR_COLOR (1 << 30)
|
||||
#define PCR_PBSIZ_1 (0 << 28)
|
||||
|
@ -47,29 +49,21 @@
|
|||
#define DMACR_HM(x) (((x) & 0xf) << 16)
|
||||
#define DMACR_TM(x) ((x) & 0xf)
|
||||
|
||||
struct imx_fb_videomode {
|
||||
struct fb_videomode mode;
|
||||
u32 pcr;
|
||||
unsigned char bpp;
|
||||
};
|
||||
|
||||
struct imx_fb_platform_data {
|
||||
u_long pixclock;
|
||||
|
||||
u_short xres;
|
||||
u_short yres;
|
||||
|
||||
u_int nonstd;
|
||||
u_char bpp;
|
||||
u_char hsync_len;
|
||||
u_char left_margin;
|
||||
u_char right_margin;
|
||||
|
||||
u_char vsync_len;
|
||||
u_char upper_margin;
|
||||
u_char lower_margin;
|
||||
u_char sync;
|
||||
struct imx_fb_videomode *mode;
|
||||
int num_modes;
|
||||
|
||||
u_int cmap_greyscale:1,
|
||||
cmap_inverse:1,
|
||||
cmap_static:1,
|
||||
unused:29;
|
||||
|
||||
u_int pcr;
|
||||
u_int pwmr;
|
||||
u_int lscr1;
|
||||
u_int dmacr;
|
||||
|
|
|
@ -130,6 +130,10 @@
|
|||
#define LCDISR_EOF (1<<1)
|
||||
#define LCDISR_BOF (1<<0)
|
||||
|
||||
/* Used fb-mode. Can be set on kernel command line, therefore file-static. */
|
||||
static const char *fb_mode;
|
||||
|
||||
|
||||
/*
|
||||
* These are the bitfields for each
|
||||
* display depth that we support.
|
||||
|
@ -146,10 +150,6 @@ struct imxfb_info {
|
|||
void __iomem *regs;
|
||||
struct clk *clk;
|
||||
|
||||
u_int max_bpp;
|
||||
u_int max_xres;
|
||||
u_int max_yres;
|
||||
|
||||
/*
|
||||
* These are the addresses we mapped
|
||||
* the framebuffer memory region to.
|
||||
|
@ -173,6 +173,9 @@ struct imxfb_info {
|
|||
cmap_static:1,
|
||||
unused:30;
|
||||
|
||||
struct imx_fb_videomode *mode;
|
||||
int num_modes;
|
||||
|
||||
void (*lcd_power)(int);
|
||||
void (*backlight_power)(int);
|
||||
};
|
||||
|
@ -299,6 +302,18 @@ static int imxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
|
|||
return ret;
|
||||
}
|
||||
|
||||
static const struct imx_fb_videomode *imxfb_find_mode(struct imxfb_info *fbi)
|
||||
{
|
||||
struct imx_fb_videomode *m;
|
||||
int i;
|
||||
|
||||
for (i = 0, m = &fbi->mode[0]; i < fbi->num_modes; i++, m++) {
|
||||
if (!strcmp(m->mode.name, fb_mode))
|
||||
return m;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* imxfb_check_var():
|
||||
* Round up in the following order: bits_per_pixel, xres,
|
||||
|
@ -309,35 +324,81 @@ static int imxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
|
|||
{
|
||||
struct imxfb_info *fbi = info->par;
|
||||
struct imxfb_rgb *rgb;
|
||||
const struct imx_fb_videomode *imxfb_mode;
|
||||
unsigned long lcd_clk;
|
||||
unsigned long long tmp;
|
||||
u32 pcr = 0;
|
||||
|
||||
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;
|
||||
var->xres_virtual = max(var->xres_virtual, var->xres);
|
||||
var->yres_virtual = max(var->yres_virtual, var->yres);
|
||||
|
||||
imxfb_mode = imxfb_find_mode(fbi);
|
||||
if (!imxfb_mode)
|
||||
return -EINVAL;
|
||||
|
||||
var->xres = imxfb_mode->mode.xres;
|
||||
var->yres = imxfb_mode->mode.yres;
|
||||
var->bits_per_pixel = imxfb_mode->bpp;
|
||||
var->pixclock = imxfb_mode->mode.pixclock;
|
||||
var->hsync_len = imxfb_mode->mode.hsync_len;
|
||||
var->left_margin = imxfb_mode->mode.left_margin;
|
||||
var->right_margin = imxfb_mode->mode.right_margin;
|
||||
var->vsync_len = imxfb_mode->mode.vsync_len;
|
||||
var->upper_margin = imxfb_mode->mode.upper_margin;
|
||||
var->lower_margin = imxfb_mode->mode.lower_margin;
|
||||
var->sync = imxfb_mode->mode.sync;
|
||||
var->xres_virtual = max(var->xres_virtual, var->xres);
|
||||
var->yres_virtual = max(var->yres_virtual, var->yres);
|
||||
|
||||
pr_debug("var->bits_per_pixel=%d\n", var->bits_per_pixel);
|
||||
|
||||
lcd_clk = clk_get_rate(fbi->clk);
|
||||
|
||||
tmp = var->pixclock * (unsigned long long)lcd_clk;
|
||||
|
||||
do_div(tmp, 1000000);
|
||||
|
||||
if (do_div(tmp, 1000000) > 500000)
|
||||
tmp++;
|
||||
|
||||
pcr = (unsigned int)tmp;
|
||||
|
||||
if (--pcr > 0x3F) {
|
||||
pcr = 0x3F;
|
||||
printk(KERN_WARNING "Must limit pixel clock to %luHz\n",
|
||||
lcd_clk / pcr);
|
||||
}
|
||||
|
||||
switch (var->bits_per_pixel) {
|
||||
case 32:
|
||||
pcr |= PCR_BPIX_18;
|
||||
rgb = &def_rgb_18;
|
||||
break;
|
||||
case 16:
|
||||
default:
|
||||
if (fbi->pcr & PCR_TFT)
|
||||
if (cpu_is_mx1())
|
||||
pcr |= PCR_BPIX_12;
|
||||
else
|
||||
pcr |= PCR_BPIX_16;
|
||||
|
||||
if (imxfb_mode->pcr & PCR_TFT)
|
||||
rgb = &def_rgb_16_tft;
|
||||
else
|
||||
rgb = &def_rgb_16_stn;
|
||||
break;
|
||||
case 8:
|
||||
pcr |= PCR_BPIX_8;
|
||||
rgb = &def_rgb_8;
|
||||
break;
|
||||
}
|
||||
|
||||
/* add sync polarities */
|
||||
pcr |= imxfb_mode->pcr & ~(0x3f | (7 << 25));
|
||||
|
||||
fbi->pcr = pcr;
|
||||
|
||||
/*
|
||||
* Copy the RGB parameters for this display
|
||||
* from the machine specific parameters.
|
||||
|
@ -394,10 +455,6 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
|
|||
|
||||
writel(fbi->screen_dma, fbi->regs + LCDC_SSA);
|
||||
|
||||
/* physical screen start address */
|
||||
writel(VPW_VPW(fbi->max_xres * fbi->max_bpp / 8 / 4),
|
||||
fbi->regs + LCDC_VPW);
|
||||
|
||||
/* panning offset 0 (0 pixel offset) */
|
||||
writel(0x00000000, fbi->regs + LCDC_POS);
|
||||
|
||||
|
@ -469,8 +526,6 @@ static struct fb_ops imxfb_ops = {
|
|||
static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *info)
|
||||
{
|
||||
struct imxfb_info *fbi = info->par;
|
||||
unsigned int pcr, lcd_clk;
|
||||
unsigned long long tmp;
|
||||
|
||||
pr_debug("var: xres=%d hslen=%d lm=%d rm=%d\n",
|
||||
var->xres, var->hsync_len,
|
||||
|
@ -506,6 +561,10 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
|
|||
info->fix.id, var->lower_margin);
|
||||
#endif
|
||||
|
||||
/* physical screen start address */
|
||||
writel(VPW_VPW(var->xres * var->bits_per_pixel / 8 / 4),
|
||||
fbi->regs + LCDC_VPW);
|
||||
|
||||
writel(HCR_H_WIDTH(var->hsync_len - 1) |
|
||||
HCR_H_WAIT_1(var->right_margin - 1) |
|
||||
HCR_H_WAIT_2(var->left_margin - 3),
|
||||
|
@ -519,38 +578,7 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
|
|||
writel(SIZE_XMAX(var->xres) | SIZE_YMAX(var->yres),
|
||||
fbi->regs + LCDC_SIZE);
|
||||
|
||||
lcd_clk = clk_get_rate(fbi->clk);
|
||||
tmp = var->pixclock * (unsigned long long)lcd_clk;
|
||||
do_div(tmp, 1000000);
|
||||
if (do_div(tmp, 1000000) > 500000)
|
||||
tmp++;
|
||||
pcr = (unsigned int)tmp;
|
||||
if (--pcr > 0x3F) {
|
||||
pcr = 0x3F;
|
||||
printk(KERN_WARNING "Must limit pixel clock to %uHz\n",
|
||||
lcd_clk / pcr);
|
||||
}
|
||||
|
||||
switch (var->bits_per_pixel) {
|
||||
case 32:
|
||||
pcr |= PCR_BPIX_18;
|
||||
break;
|
||||
case 16:
|
||||
default:
|
||||
if (cpu_is_mx1())
|
||||
pcr |= PCR_BPIX_12;
|
||||
else
|
||||
pcr |= PCR_BPIX_16;
|
||||
break;
|
||||
case 8:
|
||||
pcr |= PCR_BPIX_8;
|
||||
break;
|
||||
}
|
||||
|
||||
/* add sync polarities */
|
||||
pcr |= fbi->pcr & ~(0x3f | (7 << 25));
|
||||
|
||||
writel(pcr, fbi->regs + LCDC_PCR);
|
||||
writel(fbi->pcr, fbi->regs + LCDC_PCR);
|
||||
writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
|
||||
writel(fbi->lscr1, fbi->regs + LCDC_LSCR1);
|
||||
writel(fbi->dmacr, fbi->regs + LCDC_DMACR);
|
||||
|
@ -592,6 +620,8 @@ static int __init imxfb_init_fbinfo(struct platform_device *pdev)
|
|||
struct imx_fb_platform_data *pdata = pdev->dev.platform_data;
|
||||
struct fb_info *info = dev_get_drvdata(&pdev->dev);
|
||||
struct imxfb_info *fbi = info->par;
|
||||
struct imx_fb_videomode *m;
|
||||
int i;
|
||||
|
||||
pr_debug("%s\n",__func__);
|
||||
|
||||
|
@ -620,35 +650,18 @@ static int __init imxfb_init_fbinfo(struct platform_device *pdev)
|
|||
info->fbops = &imxfb_ops;
|
||||
info->flags = FBINFO_FLAG_DEFAULT |
|
||||
FBINFO_READS_FAST;
|
||||
|
||||
fbi->max_xres = pdata->xres;
|
||||
info->var.xres = pdata->xres;
|
||||
info->var.xres_virtual = pdata->xres;
|
||||
fbi->max_yres = pdata->yres;
|
||||
info->var.yres = pdata->yres;
|
||||
info->var.yres_virtual = pdata->yres;
|
||||
fbi->max_bpp = pdata->bpp;
|
||||
info->var.bits_per_pixel = pdata->bpp;
|
||||
info->var.nonstd = pdata->nonstd;
|
||||
info->var.pixclock = pdata->pixclock;
|
||||
info->var.hsync_len = pdata->hsync_len;
|
||||
info->var.left_margin = pdata->left_margin;
|
||||
info->var.right_margin = pdata->right_margin;
|
||||
info->var.vsync_len = pdata->vsync_len;
|
||||
info->var.upper_margin = pdata->upper_margin;
|
||||
info->var.lower_margin = pdata->lower_margin;
|
||||
info->var.sync = pdata->sync;
|
||||
info->var.grayscale = pdata->cmap_greyscale;
|
||||
fbi->cmap_inverse = pdata->cmap_inverse;
|
||||
fbi->cmap_static = pdata->cmap_static;
|
||||
fbi->pcr = pdata->pcr;
|
||||
fbi->lscr1 = pdata->lscr1;
|
||||
fbi->dmacr = pdata->dmacr;
|
||||
fbi->pwmr = pdata->pwmr;
|
||||
fbi->lcd_power = pdata->lcd_power;
|
||||
fbi->backlight_power = pdata->backlight_power;
|
||||
info->fix.smem_len = fbi->max_xres * fbi->max_yres *
|
||||
fbi->max_bpp / 8;
|
||||
|
||||
for (i = 0, m = &pdata->mode[0]; i < pdata->num_modes; i++, m++)
|
||||
info->fix.smem_len = max_t(size_t, info->fix.smem_len,
|
||||
m->mode.xres * m->mode.yres * m->bpp / 8);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -659,7 +672,7 @@ static int __init imxfb_probe(struct platform_device *pdev)
|
|||
struct fb_info *info;
|
||||
struct imx_fb_platform_data *pdata;
|
||||
struct resource *res;
|
||||
int ret;
|
||||
int ret, i;
|
||||
|
||||
dev_info(&pdev->dev, "i.MX Framebuffer driver\n");
|
||||
|
||||
|
@ -679,6 +692,9 @@ static int __init imxfb_probe(struct platform_device *pdev)
|
|||
|
||||
fbi = info->par;
|
||||
|
||||
if (!fb_mode)
|
||||
fb_mode = pdata->mode[0].mode.name;
|
||||
|
||||
platform_set_drvdata(pdev, info);
|
||||
|
||||
ret = imxfb_init_fbinfo(pdev);
|
||||
|
@ -736,6 +752,13 @@ static int __init imxfb_probe(struct platform_device *pdev)
|
|||
goto failed_platform_init;
|
||||
}
|
||||
|
||||
fbi->mode = pdata->mode;
|
||||
fbi->num_modes = pdata->num_modes;
|
||||
|
||||
INIT_LIST_HEAD(&info->modelist);
|
||||
for (i = 0; i < pdata->num_modes; i++)
|
||||
fb_add_videomode(&pdata->mode[i].mode, &info->modelist);
|
||||
|
||||
/*
|
||||
* This makes sure that our colour bitfield
|
||||
* descriptors are correctly initialised.
|
||||
|
@ -828,8 +851,34 @@ static struct platform_driver imxfb_driver = {
|
|||
},
|
||||
};
|
||||
|
||||
static int imxfb_setup(void)
|
||||
{
|
||||
#ifndef MODULE
|
||||
char *opt, *options = NULL;
|
||||
|
||||
if (fb_get_options("imxfb", &options))
|
||||
return -ENODEV;
|
||||
|
||||
if (!options || !*options)
|
||||
return 0;
|
||||
|
||||
while ((opt = strsep(&options, ",")) != NULL) {
|
||||
if (!*opt)
|
||||
continue;
|
||||
else
|
||||
fb_mode = opt;
|
||||
}
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
int __init imxfb_init(void)
|
||||
{
|
||||
int ret = imxfb_setup();
|
||||
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
return platform_driver_probe(&imxfb_driver, imxfb_probe);
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue