| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * rcar_cmm.h -- R-Car Display Unit Color Management Module |
| * |
| * Copyright (C) 2019 Jacopo Mondi <jacopo+renesas@jmondi.org> |
| */ |
| |
| #ifndef __RCAR_CMM_H__ |
| #define __RCAR_CMM_H__ |
| |
| #define CM2_LUT_SIZE 256 |
| |
| struct drm_color_lut; |
| struct platform_device; |
| |
| /** |
| * struct rcar_cmm_config - CMM configuration |
| * |
| * @lut: 1D-LUT configuration |
| * @lut.table: 1D-LUT table entries. Disable LUT operations when NULL |
| */ |
| struct rcar_cmm_config { |
| struct { |
| struct drm_color_lut *table; |
| } lut; |
| }; |
| |
| #if IS_ENABLED(CONFIG_DRM_RCAR_CMM) |
| int rcar_cmm_init(struct platform_device *pdev); |
| |
| int rcar_cmm_enable(struct platform_device *pdev); |
| void rcar_cmm_disable(struct platform_device *pdev); |
| |
| int rcar_cmm_setup(struct platform_device *pdev, |
| const struct rcar_cmm_config *config); |
| #else |
| static inline int rcar_cmm_init(struct platform_device *pdev) |
| { |
| return -ENODEV; |
| } |
| |
| static inline int rcar_cmm_enable(struct platform_device *pdev) |
| { |
| return 0; |
| } |
| |
| static inline void rcar_cmm_disable(struct platform_device *pdev) |
| { |
| } |
| |
| static inline int rcar_cmm_setup(struct platform_device *pdev, |
| const struct rcar_cmm_config *config) |
| { |
| return 0; |
| } |
| #endif /* IS_ENABLED(CONFIG_DRM_RCAR_CMM) */ |
| |
| #endif /* __RCAR_CMM_H__ */ |
