diff options
Diffstat (limited to 'drivers/video/mxc/tve.c')
-rw-r--r-- | drivers/video/mxc/tve.c | 140 |
1 files changed, 97 insertions, 43 deletions
diff --git a/drivers/video/mxc/tve.c b/drivers/video/mxc/tve.c index 2d2929c0cbd9..793b470cdce4 100644 --- a/drivers/video/mxc/tve.c +++ b/drivers/video/mxc/tve.c @@ -68,6 +68,8 @@ static int enabled; /* enable power on or not */ DEFINE_SPINLOCK(tve_lock); static struct fb_info *tve_fbi; +static struct fb_modelist tve_modelist; +static bool g_enable_tve; struct tve_data { struct platform_device *pdev; @@ -77,6 +79,7 @@ struct tve_data { int detect; void *base; int irq; + int blank; struct clk *clk; struct regulator *dac_reg; struct regulator *dig_reg; @@ -221,40 +224,50 @@ static int _is_tvout_mode_hd_compatible(void) static int tve_setup(int mode) { u32 reg; - struct clk *pll3_clk; - unsigned long pll3_clock_rate = 216000000, di1_clock_rate = 27000000; + struct clk *tve_parent_clk; + unsigned long parent_clock_rate = 216000000, di1_clock_rate = 27000000; + unsigned long tve_clock_rate = 216000000; struct clk *ipu_di1_clk; unsigned long lock_flags; - if (tve.cur_mode == mode) - return 0; - spin_lock_irqsave(&tve_lock, lock_flags); - tve.cur_mode = mode; - switch (mode) { case TVOUT_FMT_PAL: case TVOUT_FMT_NTSC: - pll3_clock_rate = 216000000; + parent_clock_rate = 216000000; di1_clock_rate = 27000000; break; case TVOUT_FMT_720P60: - pll3_clock_rate = 297000000; + parent_clock_rate = 297000000; + if (cpu_is_mx53()) + tve_clock_rate = 297000000; di1_clock_rate = 74250000; break; } if (enabled) clk_disable(tve.clk); - pll3_clk = clk_get(NULL, "pll3"); + tve_parent_clk = clk_get_parent(tve.clk); ipu_di1_clk = clk_get(NULL, "ipu_di1_clk"); - clk_disable(pll3_clk); - clk_set_rate(pll3_clk, pll3_clock_rate); - clk_set_rate(ipu_di1_clk, di1_clock_rate); + clk_disable(tve_parent_clk); + clk_set_rate(tve_parent_clk, parent_clock_rate); + + if (cpu_is_mx53()) + clk_set_rate(tve.clk, tve_clock_rate); clk_enable(tve.clk); + clk_set_rate(ipu_di1_clk, di1_clock_rate); + + if (tve.cur_mode == mode) { + if (!enabled) + clk_disable(tve.clk); + spin_unlock_irqrestore(&tve_lock, lock_flags); + return 0; + } + + tve.cur_mode = mode; /* select output video format */ if (mode == TVOUT_FMT_PAL) { @@ -497,6 +510,14 @@ static irqreturn_t tve_detect_handler(int irq, void *data) return IRQ_HANDLED; } +/* Re-construct clk for tve display */ +static inline void tve_recfg_fb(struct fb_info *fbi) +{ + fbi->flags &= ~FBINFO_MISC_USEREVENT; + fbi->var.activate |= FB_ACTIVATE_FORCE; + fb_set_var(fbi, &fbi->var); +} + int tve_fb_event(struct notifier_block *nb, unsigned long val, void *v) { struct fb_event *event = v; @@ -509,9 +530,9 @@ int tve_fb_event(struct notifier_block *nb, unsigned long val, void *v) break; tve_fbi = fbi; - fb_add_videomode(&video_modes[0], &tve_fbi->modelist); - fb_add_videomode(&video_modes[1], &tve_fbi->modelist); - fb_add_videomode(&video_modes[2], &tve_fbi->modelist); + fb_add_videomode(&video_modes[0], &tve_modelist.list); + fb_add_videomode(&video_modes[1], &tve_modelist.list); + fb_add_videomode(&video_modes[2], &tve_modelist.list); break; case FB_EVENT_MODE_CHANGE: { @@ -525,7 +546,7 @@ int tve_fb_event(struct notifier_block *nb, unsigned long val, void *v) fb_var_to_videomode(&cur_mode, &fbi->var); - list_for_each(pos, &tve_fbi->modelist) { + list_for_each(pos, &tve_modelist.list) { modelist = list_entry(pos, struct fb_modelist, list); mode = &modelist->mode; if (fb_mode_is_equal(&cur_mode, mode)) { @@ -564,31 +585,33 @@ int tve_fb_event(struct notifier_block *nb, unsigned long val, void *v) return 0; if (*((int *)event->data) == FB_BLANK_UNBLANK) { - if (fb_mode_is_equal(fbi->mode, &video_modes[0])) { - if (tve.cur_mode != TVOUT_FMT_NTSC) { + if (tve.blank != FB_BLANK_UNBLANK) { + if (fb_mode_is_equal(fbi->mode, &video_modes[0])) { tve_disable(); tve_setup(TVOUT_FMT_NTSC); - } - tve_enable(); - } else if (fb_mode_is_equal(fbi->mode, - &video_modes[1])) { - if (tve.cur_mode != TVOUT_FMT_PAL) { + tve_enable(); + tve_recfg_fb(fbi); + } else if (fb_mode_is_equal(fbi->mode, + &video_modes[1])) { tve_disable(); tve_setup(TVOUT_FMT_PAL); - } - tve_enable(); - } else if (fb_mode_is_equal(fbi->mode, - &video_modes[2])) { - if (tve.cur_mode != TVOUT_FMT_720P60) { + tve_enable(); + tve_recfg_fb(fbi); + } else if (fb_mode_is_equal(fbi->mode, + &video_modes[2])) { tve_disable(); tve_setup(TVOUT_FMT_720P60); + tve_enable(); + tve_recfg_fb(fbi); + } else { + tve_setup(TVOUT_FMT_OFF); } - tve_enable(); - } else { - tve_setup(TVOUT_FMT_OFF); + tve.blank = FB_BLANK_UNBLANK; } - } else + } else { tve_disable(); + tve.blank = FB_BLANK_POWERDOWN; + } break; } return 0; @@ -652,6 +675,11 @@ static int tve_probe(struct platform_device *pdev) struct tve_platform_data *plat_data = pdev->dev.platform_data; u32 conf_reg; + if (g_enable_tve == false) + return -ENODEV; + + INIT_LIST_HEAD(&tve_modelist.list); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) return -ENOMEM; @@ -699,9 +727,9 @@ static int tve_probe(struct platform_device *pdev) } if (tve_fbi != NULL) { - fb_add_videomode(&video_modes[0], &tve_fbi->modelist); - fb_add_videomode(&video_modes[1], &tve_fbi->modelist); - fb_add_videomode(&video_modes[2], &tve_fbi->modelist); + fb_add_videomode(&video_modes[0], &tve_modelist.list); + fb_add_videomode(&video_modes[1], &tve_modelist.list); + fb_add_videomode(&video_modes[2], &tve_modelist.list); } tve.dac_reg = regulator_get(&pdev->dev, plat_data->dac_reg); @@ -748,22 +776,40 @@ static int tve_probe(struct platform_device *pdev) clk_disable(tve.clk); + ret = fb_register_client(&nb); + if (ret < 0) + goto err2; + + tve.blank = -1; + /* is primary display? */ if (primary) { - struct fb_event event; + struct fb_var_screeninfo var; + const struct fb_videomode *mode; + + memset(&var, 0, sizeof(var)); + mode = fb_match_mode(&tve_fbi->var, &tve_modelist.list); + if (mode) { + pr_debug("TVE: fb mode found\n"); + fb_videomode_to_var(&var, mode); + } else { + pr_warning("TVE: can not find video mode\n"); + goto done; + } + acquire_console_sem(); + tve_fbi->flags |= FBINFO_MISC_USEREVENT; + fb_set_var(tve_fbi, &var); + tve_fbi->flags &= ~FBINFO_MISC_USEREVENT; + release_console_sem(); - event.info = tve_fbi; - tve_fb_event(NULL, FB_EVENT_MODE_CHANGE, &event); acquire_console_sem(); fb_blank(tve_fbi, FB_BLANK_UNBLANK); release_console_sem(); + fb_show_logo(tve_fbi, 0); } - ret = fb_register_client(&nb); - if (ret < 0) - goto err2; - +done: return 0; err2: device_remove_file(&pdev->dev, &dev_attr_headphone); @@ -842,6 +888,14 @@ static struct platform_driver tve_driver = { .resume = tve_resume, }; +static int __init enable_tve_setup(char *options) +{ + g_enable_tve = true; + + return 1; +} +__setup("tve", enable_tve_setup); + static int __init tve_init(void) { return platform_driver_register(&tve_driver); |