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path: root/drivers/gpu/drm/ast/ast_mode.c
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_mode.c')
-rw-r--r--drivers/gpu/drm/ast/ast_mode.c46
1 files changed, 35 insertions, 11 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 5389350244f2..9dc0fd5c1ea4 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);
}
@@ -1080,8 +1104,8 @@ static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
- data32.b[2] = srcdata32[0].b[1] | (srcdata32[1].b[0] >> 4);
- data32.b[3] = srcdata32[0].b[3] | (srcdata32[1].b[2] >> 4);
+ data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
+ data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
writel(data32.ul, dstxor);
csum += data32.ul;