diff options
Diffstat (limited to 'drivers/video/tegra/dc/dc.c')
| -rw-r--r-- | drivers/video/tegra/dc/dc.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index 728fb555344f..f56c007d5dab 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -4,7 +4,7 @@ * Copyright (C) 2010 Google, Inc. * Author: Erik Gilling <konkers@android.com> * - * Copyright (c) 2010-2013, NVIDIA CORPORATION, All rights reserved. + * Copyright (c) 2010-2014, NVIDIA CORPORATION, All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -2261,19 +2261,28 @@ bool tegra_dc_stats_get(struct tegra_dc *dc) return true; } -/* make the screen blank by disabling all windows */ -void tegra_dc_blank(struct tegra_dc *dc) +/* blank selected windows by disabling them */ +void tegra_dc_blank(struct tegra_dc *dc, unsigned windows) { struct tegra_dc_win *dcwins[DC_N_WINDOWS]; unsigned i; + unsigned long int blank_windows; + int nr_win = 0; - for (i = 0; i < DC_N_WINDOWS; i++) { - dcwins[i] = tegra_dc_get_window(dc, i); - dcwins[i]->flags &= ~TEGRA_WIN_FLAG_ENABLED; + if (!windows) + return; + + blank_windows = windows; + for_each_set_bit(i, &blank_windows, DC_N_WINDOWS) { + dcwins[nr_win] = tegra_dc_get_window(dc, i); + if (!dcwins[nr_win]) + continue; + dcwins[nr_win++]->flags &= ~TEGRA_WIN_FLAG_ENABLED; } - tegra_dc_update_windows(dcwins, DC_N_WINDOWS); - tegra_dc_sync_windows(dcwins, DC_N_WINDOWS); + tegra_dc_update_windows(dcwins, nr_win); + tegra_dc_sync_windows(dcwins, nr_win); + tegra_dc_program_bandwidth(dc, true); } static void _tegra_dc_disable(struct tegra_dc *dc) @@ -2854,7 +2863,7 @@ static void tegra_dc_shutdown(struct platform_device *ndev) if (!dc || !dc->enabled) return; - tegra_dc_blank(dc); + tegra_dc_blank(dc, BLANK_ALL); tegra_dc_disable(dc); } |