From 726abbc7957a2feeaf6f5e3d72579b3fd0211134 Mon Sep 17 00:00:00 2001 From: Florian Tobias Schandinat Date: Wed, 16 Mar 2011 16:31:32 +0000 Subject: viafb: refresh rate bug collection This patch fixes multiple issues with the handling of refresh rates especially for multi-display setups. If you experienced problems with wrong refresh rates this patch might fix them. Signed-off-by: Florian Tobias Schandinat --- drivers/video/via/chip.h | 1 - drivers/video/via/hw.c | 17 +++++++---------- drivers/video/via/hw.h | 3 +-- drivers/video/via/viafbdev.c | 45 +++++++++++++++++++++++++++----------------- 4 files changed, 36 insertions(+), 30 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/via/chip.h b/drivers/video/via/chip.h index 781f3aa66b4..29d70244a21 100644 --- a/drivers/video/via/chip.h +++ b/drivers/video/via/chip.h @@ -139,7 +139,6 @@ struct chip_information { struct crt_setting_information { int iga_path; - int refresh_rate; }; struct tmds_setting_information { diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index 5728fd76bc1..dc4c778877c 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -2002,13 +2002,15 @@ void viafb_fill_crtc_timing(struct crt_mode_table *crt_table, int i; int index = 0; int h_addr, v_addr; - u32 pll_D_N, clock; + u32 pll_D_N, clock, refresh = viafb_refresh; + + if (viafb_SAMM_ON && set_iga == IGA2) + refresh = viafb_refresh1; for (i = 0; i < video_mode->mode_array; i++) { index = i; - if (crt_table[i].refresh_rate == viaparinfo-> - crt_setting_info->refresh_rate) + if (crt_table[i].refresh_rate == refresh) break; } @@ -2019,7 +2021,7 @@ void viafb_fill_crtc_timing(struct crt_mode_table *crt_table, if ((viafb_LCD_ON | viafb_DVI_ON) && video_mode->crtc[0].crtc.hor_addr == 640 && video_mode->crtc[0].crtc.ver_addr == 480 - && viaparinfo->crt_setting_info->refresh_rate == 60) { + && refresh == 60) { /* The border is 8 pixels. */ crt_reg.hor_blank_start = crt_reg.hor_blank_start - 8; @@ -2070,7 +2072,6 @@ void __devinit viafb_init_chip_info(int chip_type) init_lvds_chip_info(); viaparinfo->crt_setting_info->iga_path = IGA1; - viaparinfo->crt_setting_info->refresh_rate = viafb_refresh; /*Set IGA path for each device */ viafb_set_iga_path(); @@ -2083,13 +2084,9 @@ void __devinit viafb_init_chip_info(int chip_type) viaparinfo->lvds_setting_info->lcd_mode; } -void viafb_update_device_setting(int hres, int vres, - int bpp, int vmode_refresh, int flag) +void viafb_update_device_setting(int hres, int vres, int bpp, int flag) { if (flag == 0) { - viaparinfo->crt_setting_info->refresh_rate = - vmode_refresh; - viaparinfo->tmds_setting_info->h_active = hres; viaparinfo->tmds_setting_info->v_active = vres; diff --git a/drivers/video/via/hw.h b/drivers/video/via/hw.h index 7295263299f..8858593405a 100644 --- a/drivers/video/via/hw.h +++ b/drivers/video/via/hw.h @@ -949,8 +949,7 @@ void __devinit viafb_init_chip_info(int chip_type); void __devinit viafb_init_dac(int set_iga); int viafb_get_pixclock(int hres, int vres, int vmode_refresh); int viafb_get_refresh(int hres, int vres, u32 float_refresh); -void viafb_update_device_setting(int hres, int vres, int bpp, - int vmode_refresh, int flag); +void viafb_update_device_setting(int hres, int vres, int bpp, int flag); void viafb_set_iga_path(void); void viafb_set_primary_color_register(u8 index, u8 red, u8 green, u8 blue); diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c index f555b891cc7..fd6a15f0dec 100644 --- a/drivers/video/via/viafbdev.c +++ b/drivers/video/via/viafbdev.c @@ -182,13 +182,24 @@ static int viafb_release(struct fb_info *info, int user) return 0; } +static inline int get_var_refresh(struct fb_var_screeninfo *var) +{ + u32 htotal, vtotal; + + htotal = var->left_margin + var->xres + var->right_margin + + var->hsync_len; + vtotal = var->upper_margin + var->yres + var->lower_margin + + var->vsync_len; + return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal); +} + static int viafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { - int htotal, vtotal, depth; + int depth, refresh; struct VideoModeTable *vmode_entry; struct viafb_par *ppar = info->par; - u32 long_refresh, line; + u32 line; DEBUG_MSG(KERN_INFO "viafb_check_var!\n"); /* Sanity check */ @@ -231,17 +242,11 @@ static int viafb_check_var(struct fb_var_screeninfo *var, /* Based on var passed in to calculate the refresh, * because our driver use some modes special. */ - htotal = var->xres + var->left_margin + - var->right_margin + var->hsync_len; - vtotal = var->yres + var->upper_margin + - var->lower_margin + var->vsync_len; - long_refresh = 1000000000UL / var->pixclock * 1000; - long_refresh /= (htotal * vtotal); - - viafb_refresh = viafb_get_refresh(var->xres, var->yres, long_refresh); + refresh = viafb_get_refresh(var->xres, var->yres, + get_var_refresh(var)); /* Adjust var according to our driver's own table */ - viafb_fill_var_timing_info(var, viafb_refresh, vmode_entry); + viafb_fill_var_timing_info(var, refresh, vmode_entry); if (var->accel_flags & FB_ACCELF_TEXT && !ppar->shared->vdev->engine_mmio) var->accel_flags = 0; @@ -253,12 +258,13 @@ static int viafb_set_par(struct fb_info *info) { struct viafb_par *viapar = info->par; struct VideoModeTable *vmode_entry, *vmode_entry1 = NULL; + int refresh; DEBUG_MSG(KERN_INFO "viafb_set_par!\n"); viafb_update_fix(info); viapar->depth = fb_get_color_depth(&info->var, &info->fix); viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres, - viafbinfo->var.bits_per_pixel, viafb_refresh, 0); + viafbinfo->var.bits_per_pixel, 0); vmode_entry = viafb_get_mode(viafbinfo->var.xres, viafbinfo->var.yres); if (viafb_dual_fb) { @@ -266,7 +272,7 @@ static int viafb_set_par(struct fb_info *info) viafbinfo1->var.yres); viafb_update_device_setting(viafbinfo1->var.xres, viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel, - viafb_refresh1, 1); + 1); } else if (viafb_SAMM_ON == 1) { DEBUG_MSG(KERN_INFO "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n", @@ -275,14 +281,19 @@ static int viafb_set_par(struct fb_info *info) viafb_second_yres); viafb_update_device_setting(viafb_second_xres, - viafb_second_yres, viafb_bpp1, viafb_refresh1, 1); + viafb_second_yres, viafb_bpp1, 1); } + refresh = viafb_get_refresh(info->var.xres, info->var.yres, + get_var_refresh(&info->var)); if (vmode_entry) { - if (viafb_dual_fb && viapar->iga_path == IGA2) + if (viafb_dual_fb && viapar->iga_path == IGA2) { viafb_bpp1 = info->var.bits_per_pixel; - else + viafb_refresh1 = refresh; + } else { viafb_bpp = info->var.bits_per_pixel; + viafb_refresh = refresh; + } if (info->var.accel_flags & FB_ACCELF_TEXT) info->flags &= ~FBINFO_HWACCEL_DISABLED; @@ -1843,7 +1854,7 @@ int __devinit via_fb_pci_probe(struct viafb_dev *vdev) default_var.bits_per_pixel = viafb_bpp1; default_var.pixclock = viafb_get_pixclock(viafb_second_xres, viafb_second_yres, - viafb_refresh); + viafb_refresh1); default_var.left_margin = (viafb_second_xres >> 3) & 0xf8; default_var.right_margin = 32; default_var.upper_margin = 16; -- cgit v1.2.3-70-g09d2 From 3f086fe93f734ba76f2e130777687f81e0cbb318 Mon Sep 17 00:00:00 2001 From: Florian Tobias Schandinat Date: Mon, 21 Mar 2011 17:01:07 +0000 Subject: viafb: initialize margins correct This patch initializes the margins for the initial mode correct. This is required to get the desired initial refresh rate. Also do more verbose sanity checking to prevent misbehavior. Signed-off-by: Florian Tobias Schandinat --- drivers/video/via/viafbdev.c | 31 +++++++++++-------------------- 1 file changed, 11 insertions(+), 20 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c index fd6a15f0dec..9d9bb9b4ed3 100644 --- a/drivers/video/via/viafbdev.c +++ b/drivers/video/via/viafbdev.c @@ -1806,14 +1806,9 @@ int __devinit via_fb_pci_probe(struct viafb_dev *vdev) default_var.xres_virtual = default_xres; default_var.yres_virtual = default_yres; default_var.bits_per_pixel = viafb_bpp; - default_var.pixclock = - viafb_get_pixclock(default_xres, default_yres, viafb_refresh); - default_var.left_margin = (default_xres >> 3) & 0xf8; - default_var.right_margin = 32; - default_var.upper_margin = 16; - default_var.lower_margin = 4; - default_var.hsync_len = default_var.left_margin; - default_var.vsync_len = 4; + viafb_fill_var_timing_info(&default_var, viafb_get_refresh( + default_var.xres, default_var.yres, viafb_refresh), + viafb_get_mode(default_var.xres, default_var.yres)); viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo); viafbinfo->var = default_var; @@ -1852,15 +1847,9 @@ int __devinit via_fb_pci_probe(struct viafb_dev *vdev) default_var.xres_virtual = viafb_second_virtual_xres; default_var.yres_virtual = viafb_second_virtual_yres; default_var.bits_per_pixel = viafb_bpp1; - default_var.pixclock = - viafb_get_pixclock(viafb_second_xres, viafb_second_yres, - viafb_refresh1); - default_var.left_margin = (viafb_second_xres >> 3) & 0xf8; - default_var.right_margin = 32; - default_var.upper_margin = 16; - default_var.lower_margin = 4; - default_var.hsync_len = default_var.left_margin; - default_var.vsync_len = 4; + viafb_fill_var_timing_info(&default_var, viafb_get_refresh( + default_var.xres, default_var.yres, viafb_refresh1), + viafb_get_mode(default_var.xres, default_var.yres)); viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1); viafb_check_var(&default_var, viafbinfo1); @@ -2015,15 +2004,17 @@ static int __init viafb_setup(char *options) */ int __init viafb_init(void) { - u32 dummy; + u32 dummy_x, dummy_y; #ifndef MODULE char *option = NULL; if (fb_get_options("viafb", &option)) return -ENODEV; viafb_setup(option); #endif - if (parse_mode(viafb_mode, &dummy, &dummy) - || parse_mode(viafb_mode1, &dummy, &dummy) + if (parse_mode(viafb_mode, &dummy_x, &dummy_y) + || !viafb_get_mode(dummy_x, dummy_y) + || parse_mode(viafb_mode1, &dummy_x, &dummy_y) + || !viafb_get_mode(dummy_x, dummy_y) || viafb_bpp < 0 || viafb_bpp > 32 || viafb_bpp1 < 0 || viafb_bpp1 > 32 || parse_active_dev()) -- cgit v1.2.3-70-g09d2