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Commit 94d12b13 authored by Y.C. Chen's avatar Y.C. Chen Committed by Dave Airlie
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drm/ast: Add reduced blanking modes for wide screen mode 

Signed-off-by: default avatarEgbert Eich <eich@suse.com>
Tested-by: default avatarSteven You2 Liang <liangyou2@lenovo.com>
Signed-off-by: default avatarY.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: default avatarDave Airlie <airlied@redhat.com>
parent b2efb3f0
Hide whitespace changes
Inline Side-by-side
Showing with 56 additions and 24 deletions
drivers/gpu/drm/ast/ast_mode.c
View file @ 94d12b13
......@@ -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);
}
......
drivers/gpu/drm/ast/ast_tables.h
View file @ 94d12b13
......@@ -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 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 },
};
......
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