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/*
* Copyright (C) 2015 Free Electrons
* Copyright (C) 2015 NextThing Co
*
* Boris Brezillon <boris.brezillon@free-electrons.com>
* Maxime Ripard <maxime.ripard@free-electrons.com>
*
* 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 __SUN4I_TCON_H__
#define __SUN4I_TCON_H__
#include <drm/drm_crtc.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/reset.h>
#define SUN4I_TCON_GCTL_REG 0x0
#define SUN4I_TCON_GCTL_TCON_ENABLE BIT(31)
#define SUN4I_TCON_GCTL_IOMAP_MASK BIT(0)
#define SUN4I_TCON_GCTL_IOMAP_TCON1 (1 << 0)
#define SUN4I_TCON_GCTL_IOMAP_TCON0 (0 << 0)
#define SUN4I_TCON_GINT0_REG 0x4
#define SUN4I_TCON_GINT0_VBLANK_ENABLE(pipe) BIT(31 - (pipe))
#define SUN4I_TCON_GINT0_VBLANK_INT(pipe) BIT(15 - (pipe))
#define SUN4I_TCON_GINT1_REG 0x8
#define SUN4I_TCON_FRM_CTL_REG 0x10
#define SUN4I_TCON0_CTL_REG 0x40
#define SUN4I_TCON0_CTL_TCON_ENABLE BIT(31)
#define SUN4I_TCON0_CTL_CLK_DELAY_MASK GENMASK(8, 4)
#define SUN4I_TCON0_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON0_CTL_CLK_DELAY_MASK)
#define SUN4I_TCON0_CTL_SRC_SEL_MASK GENMASK(2, 0)
#define SUN4I_TCON0_DCLK_REG 0x44
#define SUN4I_TCON0_DCLK_GATE_BIT (31)
#define SUN4I_TCON0_DCLK_DIV_SHIFT (0)
#define SUN4I_TCON0_DCLK_DIV_WIDTH (7)
#define SUN4I_TCON0_BASIC0_REG 0x48
#define SUN4I_TCON0_BASIC0_X(width) ((((width) - 1) & 0xfff) << 16)
#define SUN4I_TCON0_BASIC0_Y(height) (((height) - 1) & 0xfff)
#define SUN4I_TCON0_BASIC1_REG 0x4c
#define SUN4I_TCON0_BASIC1_H_TOTAL(total) ((((total) - 1) & 0x1fff) << 16)
#define SUN4I_TCON0_BASIC1_H_BACKPORCH(bp) (((bp) - 1) & 0xfff)
#define SUN4I_TCON0_BASIC2_REG 0x50
#define SUN4I_TCON0_BASIC2_V_TOTAL(total) (((total) & 0x1fff) << 16)
#define SUN4I_TCON0_BASIC2_V_BACKPORCH(bp) (((bp) - 1) & 0xfff)
#define SUN4I_TCON0_BASIC3_REG 0x54
#define SUN4I_TCON0_BASIC3_H_SYNC(width) ((((width) - 1) & 0x7ff) << 16)
#define SUN4I_TCON0_BASIC3_V_SYNC(height) (((height) - 1) & 0x7ff)
#define SUN4I_TCON0_HV_IF_REG 0x58
#define SUN4I_TCON0_CPU_IF_REG 0x60
#define SUN4I_TCON0_CPU_WR_REG 0x64
#define SUN4I_TCON0_CPU_RD0_REG 0x68
#define SUN4I_TCON0_CPU_RDA_REG 0x6c
#define SUN4I_TCON0_TTL0_REG 0x70
#define SUN4I_TCON0_TTL1_REG 0x74
#define SUN4I_TCON0_TTL2_REG 0x78
#define SUN4I_TCON0_TTL3_REG 0x7c
#define SUN4I_TCON0_TTL4_REG 0x80
#define SUN4I_TCON0_LVDS_IF_REG 0x84
#define SUN4I_TCON0_LVDS_IF_EN BIT(31)
#define SUN4I_TCON0_LVDS_IF_BITWIDTH_MASK BIT(26)
#define SUN4I_TCON0_LVDS_IF_BITWIDTH_18BITS (1 << 26)
#define SUN4I_TCON0_LVDS_IF_BITWIDTH_24BITS (0 << 26)
#define SUN4I_TCON0_LVDS_IF_CLK_SEL_MASK BIT(20)
#define SUN4I_TCON0_LVDS_IF_CLK_SEL_TCON0 (1 << 20)
#define SUN4I_TCON0_LVDS_IF_CLK_POL_MASK BIT(4)
#define SUN4I_TCON0_LVDS_IF_CLK_POL_NORMAL (1 << 4)
#define SUN4I_TCON0_LVDS_IF_CLK_POL_INV (0 << 4)
#define SUN4I_TCON0_LVDS_IF_DATA_POL_MASK GENMASK(3, 0)
#define SUN4I_TCON0_LVDS_IF_DATA_POL_NORMAL (0xf)
#define SUN4I_TCON0_LVDS_IF_DATA_POL_INV (0)
#define SUN4I_TCON0_IO_POL_REG 0x88
#define SUN4I_TCON0_IO_POL_DCLK_PHASE(phase) ((phase & 3) << 28)
#define SUN4I_TCON0_IO_POL_HSYNC_POSITIVE BIT(25)
#define SUN4I_TCON0_IO_POL_VSYNC_POSITIVE BIT(24)
#define SUN4I_TCON0_IO_TRI_REG 0x8c
#define SUN4I_TCON0_IO_TRI_HSYNC_DISABLE BIT(25)
#define SUN4I_TCON0_IO_TRI_VSYNC_DISABLE BIT(24)
#define SUN4I_TCON0_IO_TRI_DATA_PINS_DISABLE(pins) GENMASK(pins, 0)
#define SUN4I_TCON1_CTL_REG 0x90
#define SUN4I_TCON1_CTL_TCON_ENABLE BIT(31)
#define SUN4I_TCON1_CTL_INTERLACE_ENABLE BIT(20)
#define SUN4I_TCON1_CTL_CLK_DELAY_MASK GENMASK(8, 4)
#define SUN4I_TCON1_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON1_CTL_CLK_DELAY_MASK)
#define SUN4I_TCON1_CTL_SRC_SEL_MASK GENMASK(1, 0)
#define SUN4I_TCON1_BASIC0_REG 0x94
#define SUN4I_TCON1_BASIC0_X(width) ((((width) - 1) & 0xfff) << 16)
#define SUN4I_TCON1_BASIC0_Y(height) (((height) - 1) & 0xfff)
#define SUN4I_TCON1_BASIC1_REG 0x98
#define SUN4I_TCON1_BASIC1_X(width) ((((width) - 1) & 0xfff) << 16)
#define SUN4I_TCON1_BASIC1_Y(height) (((height) - 1) & 0xfff)
#define SUN4I_TCON1_BASIC2_REG 0x9c
#define SUN4I_TCON1_BASIC2_X(width) ((((width) - 1) & 0xfff) << 16)
#define SUN4I_TCON1_BASIC2_Y(height) (((height) - 1) & 0xfff)
#define SUN4I_TCON1_BASIC3_REG 0xa0
#define SUN4I_TCON1_BASIC3_H_TOTAL(total) ((((total) - 1) & 0x1fff) << 16)
#define SUN4I_TCON1_BASIC3_H_BACKPORCH(bp) (((bp) - 1) & 0xfff)
#define SUN4I_TCON1_BASIC4_REG 0xa4
#define SUN4I_TCON1_BASIC4_V_TOTAL(total) (((total) & 0x1fff) << 16)
#define SUN4I_TCON1_BASIC4_V_BACKPORCH(bp) (((bp) - 1) & 0xfff)
#define SUN4I_TCON1_BASIC5_REG 0xa8
#define SUN4I_TCON1_BASIC5_H_SYNC(width) ((((width) - 1) & 0x3ff) << 16)
#define SUN4I_TCON1_BASIC5_V_SYNC(height) (((height) - 1) & 0x3ff)
#define SUN4I_TCON1_IO_POL_REG 0xf0
#define SUN4I_TCON1_IO_TRI_REG 0xf4
#define SUN4I_TCON_CEU_CTL_REG 0x100
#define SUN4I_TCON_CEU_MUL_RR_REG 0x110
#define SUN4I_TCON_CEU_MUL_RG_REG 0x114
#define SUN4I_TCON_CEU_MUL_RB_REG 0x118
#define SUN4I_TCON_CEU_ADD_RC_REG 0x11c
#define SUN4I_TCON_CEU_MUL_GR_REG 0x120
#define SUN4I_TCON_CEU_MUL_GG_REG 0x124
#define SUN4I_TCON_CEU_MUL_GB_REG 0x128
#define SUN4I_TCON_CEU_ADD_GC_REG 0x12c
#define SUN4I_TCON_CEU_MUL_BR_REG 0x130
#define SUN4I_TCON_CEU_MUL_BG_REG 0x134
#define SUN4I_TCON_CEU_MUL_BB_REG 0x138
#define SUN4I_TCON_CEU_ADD_BC_REG 0x13c
#define SUN4I_TCON_CEU_RANGE_R_REG 0x140
#define SUN4I_TCON_CEU_RANGE_G_REG 0x144
#define SUN4I_TCON_CEU_RANGE_B_REG 0x148
#define SUN4I_TCON_MUX_CTRL_REG 0x200
#define SUN4I_TCON0_LVDS_ANA0_REG 0x220
#define SUN6I_TCON0_LVDS_ANA0_EN_MB BIT(31)
#define SUN6I_TCON0_LVDS_ANA0_EN_LDO BIT(30)
#define SUN6I_TCON0_LVDS_ANA0_EN_DRVC BIT(24)
#define SUN6I_TCON0_LVDS_ANA0_EN_DRVD(x) (((x) & 0xf) << 20)
#define SUN6I_TCON0_LVDS_ANA0_C(x) (((x) & 3) << 17)
#define SUN6I_TCON0_LVDS_ANA0_V(x) (((x) & 3) << 8)
#define SUN6I_TCON0_LVDS_ANA0_PD(x) (((x) & 3) << 4)
#define SUN4I_TCON1_FILL_CTL_REG 0x300
#define SUN4I_TCON1_FILL_BEG0_REG 0x304
#define SUN4I_TCON1_FILL_END0_REG 0x308
#define SUN4I_TCON1_FILL_DATA0_REG 0x30c
#define SUN4I_TCON1_FILL_BEG1_REG 0x310
#define SUN4I_TCON1_FILL_END1_REG 0x314
#define SUN4I_TCON1_FILL_DATA1_REG 0x318
#define SUN4I_TCON1_FILL_BEG2_REG 0x31c
#define SUN4I_TCON1_FILL_END2_REG 0x320
#define SUN4I_TCON1_FILL_DATA2_REG 0x324
#define SUN4I_TCON1_GAMMA_TABLE_REG 0x400
#define SUN4I_TCON_MAX_CHANNELS 2
struct sun4i_tcon;
struct sun4i_tcon_quirks {
bool has_channel_0; /* a83t does not have channel 0 on second TCON */
bool has_channel_1; /* a33 does not have channel 1 */
bool has_lvds_alt; /* Does the LVDS clock have a parent other than the TCON clock? */
bool needs_de_be_mux; /* sun6i needs mux to select backend */
/* callback to handle tcon muxing options */
int (*set_mux)(struct sun4i_tcon *, const struct drm_encoder *);
};
struct sun4i_tcon {
struct device *dev;
struct drm_device *drm;
struct regmap *regs;
/* Main bus clock */
struct clk *clk;
/* Clocks for the TCON channels */
struct clk *sclk0;
struct clk *sclk1;
/* Possible mux for the LVDS clock */
struct clk *lvds_pll;
/* Pixel clock */
struct clk *dclk;
u8 dclk_max_div;
u8 dclk_min_div;
/* Reset control */
struct reset_control *lcd_rst;
struct reset_control *lvds_rst;
struct drm_panel *panel;
/* Platform adjustments */
const struct sun4i_tcon_quirks *quirks;
/* Associated crtc */
struct sun4i_crtc *crtc;
int id;
/* TCON list management */
struct list_head list;
};
struct drm_bridge *sun4i_tcon_find_bridge(struct device_node *node);
struct drm_panel *sun4i_tcon_find_panel(struct device_node *node);
void sun4i_tcon_enable_vblank(struct sun4i_tcon *tcon, bool enable);
void sun4i_tcon_mode_set(struct sun4i_tcon *tcon,
const struct drm_encoder *encoder,
const struct drm_display_mode *mode);
void sun4i_tcon_set_status(struct sun4i_tcon *crtc,
const struct drm_encoder *encoder, bool enable);
extern const struct of_device_id sun4i_tcon_of_table[];
#endif /* __SUN4I_TCON_H__ */
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