diff options
Diffstat (limited to 'drivers/video/fbdev/mxc/crtc.h')
| -rw-r--r-- | drivers/video/fbdev/mxc/crtc.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/video/fbdev/mxc/crtc.h b/drivers/video/fbdev/mxc/crtc.h new file mode 100644 index 000000000000..8bd1c1b95bd1 --- /dev/null +++ b/drivers/video/fbdev/mxc/crtc.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2014 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ +#ifndef __CRTC__ +#define __CRTC__ + +enum crtc { + CRTC_IPU_DI0, + CRTC_IPU_DI1, + CRTC_IPU1_DI0, + CRTC_IPU1_DI1, + CRTC_IPU2_DI0, + CRTC_IPU2_DI1, + CRTC_LCDIF, + CRTC_LCDIF1, + CRTC_LCDIF2, + CRTC_MAX, +}; + +struct ipu_di_crtc_map { + enum crtc crtc; + int ipu_id; + int ipu_di; +}; + +static const struct ipu_di_crtc_map ipu_di_crtc_maps[] = { + {CRTC_IPU1_DI0, 0 , 0}, {CRTC_IPU1_DI1, 0 , 1}, + {CRTC_IPU2_DI0, 1 , 0}, {CRTC_IPU2_DI1, 1 , 1}, +}; + +static inline int ipu_di_to_crtc(struct device *dev, int ipu_id, + int ipu_di, enum crtc *crtc) +{ + int i = 0; + + for (; i < ARRAY_SIZE(ipu_di_crtc_maps); i++) + if (ipu_di_crtc_maps[i].ipu_id == ipu_id && + ipu_di_crtc_maps[i].ipu_di == ipu_di) { + *crtc = ipu_di_crtc_maps[i].crtc; + return 0; + } + + dev_err(dev, "failed to get valid ipu di crtc " + "ipu_id %d, ipu_di %d\n", ipu_id, ipu_di); + return -EINVAL; +} + +#endif |