54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2017 Rockchip Electronics Co. Ltd.
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*
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* Author: Wyon Bi <bivvy.bi@rock-chips.com>
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*/
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#include <linux/module.h>
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#include "rk618_dither.h"
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#define RK618_FRC_REG 0x0054
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#define FRC_DEN_INV HIWORD_UPDATE(1, 6, 6)
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#define FRC_SYNC_INV HIWORD_UPDATE(1, 5, 5)
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#define FRC_DCLK_INV HIWORD_UPDATE(1, 4, 4)
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#define FRC_OUT_ZERO HIWORD_UPDATE(1, 3, 3)
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#define FRC_OUT_MODE_RGB666 HIWORD_UPDATE(1, 2, 2)
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#define FRC_OUT_MODE_RGB888 HIWORD_UPDATE(0, 2, 2)
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#define FRC_DITHER_MODE_HI_FRC HIWORD_UPDATE(1, 1, 1)
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#define FRC_DITHER_MODE_FRC HIWORD_UPDATE(0, 1, 1)
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#define FRC_DITHER_ENABLE HIWORD_UPDATE(1, 0, 0)
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#define FRC_DITHER_DISABLE HIWORD_UPDATE(0, 0, 0)
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void rk618_frc_dither_init(struct rk618 *rk618, u32 bus_format)
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{
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u32 val;
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switch (bus_format) {
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case MEDIA_BUS_FMT_RGB666_1X18:
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case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG:
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val = FRC_OUT_MODE_RGB666 | FRC_DITHER_DISABLE;
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break;
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case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
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val = FRC_OUT_MODE_RGB888 | FRC_DITHER_ENABLE;
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break;
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case MEDIA_BUS_FMT_RGB888_1X24:
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case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA:
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case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG:
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default:
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val = FRC_OUT_MODE_RGB888 | FRC_DITHER_DISABLE;
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break;
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}
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regmap_write(rk618->regmap, RK618_FRC_REG, val);
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}
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EXPORT_SYMBOL_GPL(rk618_frc_dither_init);
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void rk618_frc_dclk_invert(struct rk618 *rk618)
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{
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regmap_write(rk618->regmap, RK618_FRC_REG, FRC_DCLK_INV);
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}
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EXPORT_SYMBOL_GPL(rk618_frc_dclk_invert);
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MODULE_LICENSE("GPL");
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