diff options
| author | Stefan Agner <stefan@agner.ch> | 2015-12-02 14:39:40 -0800 |
|---|---|---|
| committer | Stefan Agner <stefan@agner.ch> | 2016-04-25 20:27:18 -0700 |
| commit | fb127b7943c9262f5d95f402922d92b9d6c1dad2 (patch) | |
| tree | be4cb4f3caaec3157930790f306fe8d3055fe17d /drivers/gpu/drm/fsl-dcu/fsl_tcon.h | |
| parent | 2d701449bce1b7ddb0a7d85de7479c7422ee0e42 (diff) | |
drm/fsl-dcu: add TCON driver
Add driver for the TCON (timing controller) module. The TCON module
is a separate module attached after the DCU (display controller
unit). Each DCU instance has its own, directly connected TCON
instance. The DCU's RGB and timing signals are passing through
the TCON module. TCON can provide timing signals for raw TFT panels
or operate in a bypass mode which leaves all signals unaltered.
The driver currently only supports the bypass mode.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu/fsl_tcon.h')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_tcon.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_tcon.h b/drivers/gpu/drm/fsl-dcu/fsl_tcon.h new file mode 100644 index 000000000000..80a7617de58f --- /dev/null +++ b/drivers/gpu/drm/fsl-dcu/fsl_tcon.h @@ -0,0 +1,33 @@ +/* + * Copyright 2015 Toradex AG + * + * Stefan Agner <stefan@agner.ch> + * + * Freescale TCON device driver + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __FSL_TCON_H__ +#define __FSL_TCON_H__ + +#include <linux/bitops.h> + +#define FSL_TCON_CTRL1 0x0 +#define FSL_TCON_CTRL1_TCON_BYPASS BIT(29) + +struct fsl_tcon { + struct regmap *regs; + struct clk *ipg_clk; +}; + +struct fsl_tcon *fsl_tcon_init(struct device *dev); +void fsl_tcon_free(struct fsl_tcon *tcon); + +void fsl_tcon_bypass_disable(struct fsl_tcon *tcon); +void fsl_tcon_bypass_enable(struct fsl_tcon *tcon); + +#endif /* __FSL_TCON_H__ */ |