mirror of https://gitee.com/openkylin/linux.git
drm/ast: Add reduced blanking modes for wide screen mode
Signed-off-by: Egbert Eich <eich@suse.com>
Tested-by: Steven You2 Liang <liangyou2@lenovo.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.
[airlied: argh whitespace damage]
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Y.C. Chen
Dave Airlie
parent
b2efb3f0a1
commit
94d12b137c
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@ -80,6 +80,8 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo
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struct ast_private *ast = crtc->dev->dev_private;
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u32 refresh_rate_index = 0, mode_id, color_index, refresh_rate;
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u32 hborder, vborder;
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bool check_sync;
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struct ast_vbios_enhtable *best = NULL;
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switch (crtc->primary->fb->bits_per_pixel) {
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case 8:
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@ -141,14 +143,34 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo
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}
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refresh_rate = drm_mode_vrefresh(mode);
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while (vbios_mode->enh_table->refresh_rate < refresh_rate) {
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vbios_mode->enh_table++;
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if ((vbios_mode->enh_table->refresh_rate > refresh_rate) ||
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(vbios_mode->enh_table->refresh_rate == 0xff)) {
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vbios_mode->enh_table--;
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break;
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check_sync = vbios_mode->enh_table->flags & WideScreenMode;
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do {
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struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
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while (loop->refresh_rate != 0xff) {
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if ((check_sync) &&
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(((mode->flags & DRM_MODE_FLAG_NVSYNC) &&
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(loop->flags & PVSync)) ||
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((mode->flags & DRM_MODE_FLAG_PVSYNC) &&
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(loop->flags & NVSync)) ||
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((mode->flags & DRM_MODE_FLAG_NHSYNC) &&
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(loop->flags & PHSync)) ||
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((mode->flags & DRM_MODE_FLAG_PHSYNC) &&
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(loop->flags & NHSync)))) {
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loop++;
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continue;
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}
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if (loop->refresh_rate <= refresh_rate
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&& (!best || loop->refresh_rate > best->refresh_rate))
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best = loop;
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loop++;
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}
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}
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if (best || !check_sync)
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break;
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check_sync = 0;
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} while (1);
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if (best)
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vbios_mode->enh_table = best;
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hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
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vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
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@ -419,8 +441,10 @@ static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mo
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struct ast_private *ast = dev->dev_private;
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u8 jreg;
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jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
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jreg |= (vbios_mode->enh_table->flags & SyncNN);
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jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
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jreg &= ~0xC0;
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if (vbios_mode->enh_table->flags & NVSync) jreg |= 0x80;
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if (vbios_mode->enh_table->flags & NHSync) jreg |= 0x40;
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ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
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}
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@ -35,14 +35,18 @@
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#define HalfDCLK 0x00000002
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#define DoubleScanMode 0x00000004
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#define LineCompareOff 0x00000008
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#define SyncPP 0x00000000
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#define SyncPN 0x00000040
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#define SyncNP 0x00000080
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#define SyncNN 0x000000C0
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#define HBorder 0x00000020
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#define VBorder 0x00000010
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#define WideScreenMode 0x00000100
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#define NewModeInfo 0x00000200
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#define NHSync 0x00000400
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#define PHSync 0x00000800
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#define NVSync 0x00001000
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#define PVSync 0x00002000
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#define SyncPP (PVSync | PHSync)
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#define SyncPN (PVSync | NHSync)
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#define SyncNP (NVSync | PHSync)
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#define SyncNN (NVSync | NHSync)
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/* DCLK Index */
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#define VCLK25_175 0x00
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@ -72,6 +76,7 @@
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#define VCLK119 0x17
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#define VCLK85_5 0x18
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#define VCLK97_75 0x19
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#define VCLK118_25 0x1A
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static struct ast_vbios_dclk_info dclk_table[] = {
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{0x2C, 0xE7, 0x03}, /* 00: VCLK25_175 */
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@ -100,6 +105,7 @@ static struct ast_vbios_dclk_info dclk_table[] = {
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{0x77, 0x58, 0x80}, /* 17: VCLK119 */
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{0x32, 0x67, 0x80}, /* 18: VCLK85_5 */
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{0x6a, 0x6d, 0x80}, /* 19: VCLK97_75 */
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{0x3b, 0x2c, 0x81}, /* 1A: VCLK118_25 */
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};
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static struct ast_vbios_stdtable vbios_stdtable[] = {
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@ -246,8 +252,10 @@ static struct ast_vbios_enhtable res_1360x768[] = {
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static struct ast_vbios_enhtable res_1600x900[] = {
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{1760, 1600, 48, 32, 926, 900, 3, 5, VCLK97_75, /* 60Hz CVT RB */
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x3A },
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{1760, 1600, 48, 32, 926, 900, 3, 5, VCLK97_75, /* end */
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x3A }
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{2112, 1600, 88,168, 934, 900, 3, 5, VCLK118_25, /* 60Hz CVT */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x3A },
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{2112, 1600, 88,168, 934, 900, 3, 5, VCLK118_25, /* 60Hz CVT */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x3A },
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};
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static struct ast_vbios_enhtable res_1920x1080[] = {
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@ -261,11 +269,11 @@ static struct ast_vbios_enhtable res_1920x1080[] = {
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/* 16:10 */
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static struct ast_vbios_enhtable res_1280x800[] = {
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{1440, 1280, 48, 32, 823, 800, 3, 6, VCLK71, /* 60Hz RB */
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 35 },
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x35 },
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{1680, 1280, 72,128, 831, 800, 3, 6, VCLK83_5, /* 60Hz */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x35 },
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x35 },
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{1680, 1280, 72,128, 831, 800, 3, 6, VCLK83_5, /* 60Hz */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x35 },
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x35 },
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};
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@ -273,24 +281,24 @@ static struct ast_vbios_enhtable res_1440x900[] = {
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{1600, 1440, 48, 32, 926, 900, 3, 6, VCLK88_75, /* 60Hz RB */
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x36 },
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{1904, 1440, 80,152, 934, 900, 3, 6, VCLK106_5, /* 60Hz */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x36 },
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x36 },
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{1904, 1440, 80,152, 934, 900, 3, 6, VCLK106_5, /* 60Hz */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x36 },
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x36 },
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};
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static struct ast_vbios_enhtable res_1680x1050[] = {
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{1840, 1680, 48, 32, 1080, 1050, 3, 6, VCLK119, /* 60Hz RB */
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x37 },
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{2240, 1680,104,176, 1089, 1050, 3, 6, VCLK146_25, /* 60Hz */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x37 },
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x37 },
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{2240, 1680,104,176, 1089, 1050, 3, 6, VCLK146_25, /* 60Hz */
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x37 },
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(SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 2, 0x37 },
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};
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static struct ast_vbios_enhtable res_1920x1200[] = {
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{2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz */
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{2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz RB*/
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x34 },
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{2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz */
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{2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60Hz RB */
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(SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 0xFF, 1, 0x34 },
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};
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