[PATCH] drm/ast: Add resolution support for 1152x864@75

From: Jammy Huang
Date: Fri Sep 16 2022 - 04:15:06 EST


Add 1152x864 into support list.

Signed-off-by: Jammy Huang <jammy_huang@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/ast/ast_mode.c | 3 +++
drivers/gpu/drm/ast/ast_tables.h | 7 +++++++
2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 214b10178454..0b2c5fe8dc2c 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -114,6 +114,9 @@ static bool ast_get_vbios_mode_info(const struct drm_format_info *format,
case 1024:
vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
break;
+ case 1152:
+ vbios_mode->enh_table = &res_1152x864[refresh_rate_index];
+ break;
case 1280:
if (mode->crtc_vdisplay == 800)
vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
diff --git a/drivers/gpu/drm/ast/ast_tables.h b/drivers/gpu/drm/ast/ast_tables.h
index dbe1cc620f6e..0378c9bc079b 100644
--- a/drivers/gpu/drm/ast/ast_tables.h
+++ b/drivers/gpu/drm/ast/ast_tables.h
@@ -272,6 +272,13 @@ static const struct ast_vbios_enhtable res_1600x1200[] = {
(SyncPP | Charx8Dot), 0xFF, 1, 0x33 },
};

+static const struct ast_vbios_enhtable res_1152x864[] = {
+ {1600, 1152, 64, 128, 900, 864, 1, 3, VCLK108, /* 75Hz */
+ (SyncPP | Charx8Dot | NewModeInfo), 75, 1, 0x3B },
+ {1600, 1152, 64, 128, 900, 864, 1, 3, VCLK108, /* end */
+ (SyncPP | Charx8Dot | NewModeInfo), 0xFF, 1, 0x3B },
+};
+
/* 16:9 */
static const struct ast_vbios_enhtable res_1360x768[] = {
{1792, 1360, 64, 112, 795, 768, 3, 6, VCLK85_5, /* 60Hz */
--
2.25.1