diff options
Diffstat (limited to 'drivers/staging/msm/mddihost_e.c')
-rw-r--r-- | drivers/staging/msm/mddihost_e.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/staging/msm/mddihost_e.c b/drivers/staging/msm/mddihost_e.c new file mode 100644 index 000000000000..7de5eda71ce3 --- /dev/null +++ b/drivers/staging/msm/mddihost_e.c @@ -0,0 +1,63 @@ +/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> + +#include "msm_fb.h" +#include "mddihost.h" +#include "mddihosti.h" + +#include <linux/clk.h> +#include <mach/clk.h> + +extern struct semaphore mddi_host_mutex; +static boolean mddi_host_ext_powered = FALSE; + +void mddi_host_start_ext_display(void) +{ + down(&mddi_host_mutex); + + if (!mddi_host_ext_powered) { + mddi_host_init(MDDI_HOST_EXT); + + mddi_host_ext_powered = TRUE; + } + + up(&mddi_host_mutex); +} + +void mddi_host_stop_ext_display(void) +{ + down(&mddi_host_mutex); + + if (mddi_host_ext_powered) { + mddi_host_powerdown(MDDI_HOST_EXT); + + mddi_host_ext_powered = FALSE; + } + + up(&mddi_host_mutex); +} |