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video: tegra: fix vblank detection

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Change-Id: Ib74cbbb0d703c782f64f93930cd234359107021c
Signed-off-by: Erik Gilling <konkers@android.com>
This commit is contained in:
Erik Gilling
2010-12-01 17:55:06 -08:00
parent fb127f4e45
commit 360f46b91c
2 changed files with 6 additions and 2 deletions
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4
drivers/video/tegra/dc/dc.c
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@@ -490,7 +490,7 @@ int tegra_dc_update_windows(struct tegra_dc_win *windows[], int n)
if (no_vsync)
tegra_dc_writel(dc, WRITE_MUX_ACTIVE | READ_MUX_ACTIVE, DC_CMD_STATE_ACCESS);
else
tegra_dc_writel(dc, WRITE_MUX_ASSEMBLY | WRITE_MUX_ASSEMBLY, DC_CMD_STATE_ACCESS);
tegra_dc_writel(dc, WRITE_MUX_ASSEMBLY | READ_MUX_ASSEMBLY, DC_CMD_STATE_ACCESS);
for (i = 0; i < n; i++) {
struct tegra_dc_win *win = windows[i];
@@ -823,7 +823,7 @@ static irqreturn_t tegra_dc_irq(int irq, void *ptr)
val = tegra_dc_readl(dc, DC_CMD_STATE_CONTROL);
for (i = 0; i < DC_N_WINDOWS; i++) {
if (!(val & (WIN_A_ACT_REQ << i))) {
if (!(val & (WIN_A_UPDATE << i))) {
dc->windows[i].dirty = 0;
completed = 1;
} else {

4
drivers/video/tegra/dc/dc_reg.h
View File

@@ -89,6 +89,10 @@
#define WIN_A_ACT_REQ (1 << 1)
#define WIN_B_ACT_REQ (1 << 2)
#define WIN_C_ACT_REQ (1 << 3)
#define GENERAL_UPDATE (1 << 0)
#define WIN_A_UPDATE (1 << 1)
#define WIN_B_UPDATE (1 << 2)
#define WIN_C_UPDATE (1 << 3)
#define DC_CMD_DISPLAY_WINDOW_HEADER 0x042
#define WINDOW_A_SELECT (1 << 4)