From: "Y.C. Chen" yc_chen@aspeedtech.com
Signed-off-by: Egbert Eich eich@suse.com Signed-off-by: Y.C. Chen yc_chen@aspeedtech.com
v3: based on [PATCH 1/2] drm/ast: Add missing entry to dclk_table[]. Add reduced blanking modes, improve mode matching to identify these modes by thier sync polarities. --- drivers/gpu/drm/ast/ast_mode.c | 42 +++++++++++++++++++++++++++++++--------- drivers/gpu/drm/ast/ast_tables.h | 42 ++++++++++++++++++++++++---------------- 2 files changed, 58 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index 5389350..19ada0b 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -80,6 +80,8 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo struct ast_private *ast = crtc->dev->dev_private; u32 refresh_rate_index = 0, mode_id, color_index, refresh_rate; u32 hborder, vborder; + bool check_sync; + struct ast_vbios_enhtable *best = NULL;
switch (crtc->primary->fb->bits_per_pixel) { case 8: @@ -141,14 +143,34 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo }
refresh_rate = drm_mode_vrefresh(mode); - while (vbios_mode->enh_table->refresh_rate < refresh_rate) { - vbios_mode->enh_table++; - if ((vbios_mode->enh_table->refresh_rate > refresh_rate) || - (vbios_mode->enh_table->refresh_rate == 0xff)) { - vbios_mode->enh_table--; - break; + check_sync = vbios_mode->enh_table->flags & WideScreenMode; + do { + struct ast_vbios_enhtable *loop = vbios_mode->enh_table; + + while (loop->refresh_rate != 0xff) { + if ((check_sync) && + (((mode->flags & DRM_MODE_FLAG_NVSYNC) && + (loop->flags & PVSync)) || + ((mode->flags & DRM_MODE_FLAG_PVSYNC) && + (loop->flags & NVSync)) || + ((mode->flags & DRM_MODE_FLAG_NHSYNC) && + (loop->flags & PHSync)) || + ((mode->flags & DRM_MODE_FLAG_PHSYNC) && + (loop->flags & NHSync)))) { + loop++; + continue; + } + if (loop->refresh_rate <= refresh_rate + && (!best || loop->refresh_rate > best->refresh_rate)) + best = loop; + loop++; } - } + if (best || !check_sync) + break; + check_sync = 0; + } while (1); + if (best) + vbios_mode->enh_table = best;
hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0; vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0; @@ -419,8 +441,10 @@ static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mo struct ast_private *ast = dev->dev_private; u8 jreg;
- jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ); - jreg |= (vbios_mode->enh_table->flags & SyncNN); + jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ); + jreg &= ~0xC0; + if (vbios_mode->enh_table->flags & NVSync) jreg |= 0x80; + if (vbios_mode->enh_table->flags & NHSync) jreg |= 0x40; ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg); }
diff --git a/drivers/gpu/drm/ast/ast_tables.h b/drivers/gpu/drm/ast/ast_tables.h index 05c01ea..28ce659 100644 --- a/drivers/gpu/drm/ast/ast_tables.h +++ b/drivers/gpu/drm/ast/ast_tables.h @@ -35,14 +35,18 @@ #define HalfDCLK 0x00000002 #define DoubleScanMode 0x00000004 #define LineCompareOff 0x00000008 -#define SyncPP 0x00000000 -#define SyncPN 0x00000040 -#define SyncNP 0x00000080 -#define SyncNN 0x000000C0 #define HBorder 0x00000020 #define VBorder 0x00000010 -#define WideScreenMode 0x00000100 -#define NewModeInfo 0x00000200 +#define WideScreenMode 0x00000100 +#define NewModeInfo 0x00000200 +#define NHSync 0x00000400 +#define PHSync 0x00000800 +#define NVSync 0x00001000 +#define PVSync 0x00002000 +#define SyncPP (PVSync | PHSync) +#define SyncPN (PVSync | NHSync) +#define SyncNP (NVSync | PHSync) +#define SyncNN (NVSync | NHSync)
/* DCLK Index */ #define VCLK25_175 0x00 @@ -72,6 +76,7 @@ #define VCLK119 0x17 #define VCLK85_5 0x18 #define VCLK97_75 0x19 +#define VCLK118_25 0x1A
static struct ast_vbios_dclk_info dclk_table[] = { {0x2C, 0xE7, 0x03}, /* 00: VCLK25_175 */ @@ -100,6 +105,7 @@ static struct ast_vbios_dclk_info dclk_table[] = { {0x77, 0x58, 0x80}, /* 17: VCLK119 */ {0x32, 0x67, 0x80}, /* 18: VCLK85_5 */ {0x6a, 0x6d, 0x80}, /* 19: VCLK97_75 */ + {0x3b, 0x2c, 0x81}, /* 1A: VCLK118_25 */ };
static struct ast_vbios_stdtable vbios_stdtable[] = { @@ -246,8 +252,10 @@ static struct ast_vbios_enhtable res_1360x768[] = { static struct ast_vbios_enhtable res_1600x900[] = { {1760, 1600, 48, 32, 926, 900, 3, 5, VCLK97_75, /* 60Hz CVT RB */ (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x3A }, - {1760, 1600, 48, 32, 926, 900, 3, 5, VCLK97_75, /* end */ - (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x3A } + {2112, 1600, 88,168, 934, 900, 3, 5, VCLK118_25, /* 60Hz CVT */ + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x3A }, + {2112, 1600, 88,168, 934, 900, 3, 5, VCLK118_25, /* 60Hz CVT */ + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x3A }, };
static struct ast_vbios_enhtable res_1920x1080[] = { @@ -261,11 +269,11 @@ static struct ast_vbios_enhtable res_1920x1080[] = { /* 16:10 */ static struct ast_vbios_enhtable res_1280x800[] = { {1440, 1280, 48, 32, 823, 800, 3, 6, VCLK71, /* 60Hz RB */ - (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 35 }, + (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x35 }, {1680, 1280, 72,128, 831, 800, 3, 6, VCLK83_5, /* 60Hz */ - (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x35 }, + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x35 }, {1680, 1280, 72,128, 831, 800, 3, 6, VCLK83_5, /* 60Hz */ - (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x35 }, + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x35 },
};
@@ -273,24 +281,24 @@ static struct ast_vbios_enhtable res_1440x900[] = { {1600, 1440, 48, 32, 926, 900, 3, 6, VCLK88_75, /* 60Hz RB */ (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x36 }, {1904, 1440, 80,152, 934, 900, 3, 6, VCLK106_5, /* 60Hz */ - (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x36 }, + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x36 }, {1904, 1440, 80,152, 934, 900, 3, 6, VCLK106_5, /* 60Hz */ - (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x36 }, + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x36 }, };
static struct ast_vbios_enhtable res_1680x1050[] = { {1840, 1680, 48, 32, 1080, 1050, 3, 6, VCLK119, /* 60Hz RB */ (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x37 }, {2240, 1680,104,176, 1089, 1050, 3, 6, VCLK146_25, /* 60Hz */ - (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x37 }, + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x37 }, {2240, 1680,104,176, 1089, 1050, 3, 6, VCLK146_25, /* 60Hz */ - (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x37 }, + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x37 }, };
static struct ast_vbios_enhtable res_1920x1200[] = { - {2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz */ + {2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz RB*/ (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x34 }, - {2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz */ + {2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz RB */ (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x34 }, };