diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/tegra/dc/dc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index 8b3bf041a7df..113e64c59563 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -2101,8 +2101,11 @@ static void tegra_dc_underflow_handler(struct tegra_dc *dc) dc->windows[i].underflows++; #ifdef CONFIG_ARCH_TEGRA_2x_SOC - if (dc->windows[i].underflows > 4) + if (dc->windows[i].underflows > 4) { schedule_work(&dc->reset_work); + /* reset counter */ + dc->windows[i].underflows = 0; + } #endif } else { dc->windows[i].underflows = 0; @@ -2734,6 +2737,13 @@ static void tegra_dc_reset_worker(struct work_struct *work) _tegra_dc_controller_reset_enable(dc); dc->enabled = true; + + /* reopen host read bus */ + val = tegra_dc_readl(dc, DC_CMD_CONT_SYNCPT_VSYNC); + val &= ~(0x00000100); + val |= 0x100; + tegra_dc_writel(dc, val, DC_CMD_CONT_SYNCPT_VSYNC); + unlock: mutex_unlock(&dc->lock); mutex_unlock(&shared_lock); |