| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Copyright (C) 2015 Free Electrons |
| * Copyright (C) 2015 NextThing Co |
| * |
| * Boris Brezillon <boris.brezillon@free-electrons.com> |
| * Maxime Ripard <maxime.ripard@free-electrons.com> |
| */ |
| |
| #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_GAMMA_ENABLE BIT(30) |
| #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_TCON0_TRI_FINISH_ENABLE BIT(27) |
| #define SUN4I_TCON_GINT0_TCON0_TRI_COUNTER_ENABLE BIT(26) |
| #define SUN4I_TCON_GINT0_VBLANK_INT(pipe) BIT(15 - (pipe)) |
| #define SUN4I_TCON_GINT0_TCON0_TRI_FINISH_INT BIT(11) |
| #define SUN4I_TCON_GINT0_TCON0_TRI_COUNTER_INT BIT(10) |
| |
| #define SUN4I_TCON_GINT1_REG 0x8 |
| |
| #define SUN4I_TCON_FRM_CTL_REG 0x10 |
| #define SUN4I_TCON0_FRM_CTL_EN BIT(31) |
| #define SUN4I_TCON0_FRM_CTL_MODE_R BIT(6) |
| #define SUN4I_TCON0_FRM_CTL_MODE_G BIT(5) |
| #define SUN4I_TCON0_FRM_CTL_MODE_B BIT(4) |
| |
| #define SUN4I_TCON0_FRM_SEED_PR_REG 0x14 |
| #define SUN4I_TCON0_FRM_SEED_PG_REG 0x18 |
| #define SUN4I_TCON0_FRM_SEED_PB_REG 0x1c |
| #define SUN4I_TCON0_FRM_SEED_LR_REG 0x20 |
| #define SUN4I_TCON0_FRM_SEED_LG_REG 0x24 |
| #define SUN4I_TCON0_FRM_SEED_LB_REG 0x28 |
| #define SUN4I_TCON0_FRM_TBL0_REG 0x2c |
| #define SUN4I_TCON0_FRM_TBL1_REG 0x30 |
| #define SUN4I_TCON0_FRM_TBL2_REG 0x34 |
| #define SUN4I_TCON0_FRM_TBL3_REG 0x38 |
| |
| #define SUN4I_TCON0_CTL_REG 0x40 |
| #define SUN4I_TCON0_CTL_TCON_ENABLE BIT(31) |
| #define SUN4I_TCON0_CTL_IF_MASK GENMASK(25, 24) |
| #define SUN4I_TCON0_CTL_IF_8080 (1 << 24) |
| #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_IF_MODE_MASK GENMASK(31, 28) |
| #define SUN4I_TCON0_CPU_IF_MODE_DSI (1 << 28) |
| #define SUN4I_TCON0_CPU_IF_TRI_FIFO_FLUSH BIT(16) |
| #define SUN4I_TCON0_CPU_IF_TRI_FIFO_EN BIT(2) |
| #define SUN4I_TCON0_CPU_IF_TRI_EN BIT(0) |
| |
| #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_DE_NEGATIVE BIT(27) |
| #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_ECC_FIFO_REG 0xf8 |
| #define SUN4I_TCON_ECC_FIFO_EN BIT(3) |
| |
| #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_TCON0_CPU_TRI0_REG 0x160 |
| #define SUN4I_TCON0_CPU_TRI0_BLOCK_SPACE(space) ((((space) - 1) & 0xfff) << 16) |
| #define SUN4I_TCON0_CPU_TRI0_BLOCK_SIZE(size) (((size) - 1) & 0xfff) |
| |
| #define SUN4I_TCON0_CPU_TRI1_REG 0x164 |
| #define SUN4I_TCON0_CPU_TRI1_BLOCK_NUM(num) (((num) - 1) & 0xffff) |
| |
| #define SUN4I_TCON0_CPU_TRI2_REG 0x168 |
| #define SUN4I_TCON0_CPU_TRI2_START_DELAY(delay) (((delay) & 0xffff) << 16) |
| #define SUN4I_TCON0_CPU_TRI2_TRANS_START_SET(set) ((set) & 0xfff) |
| |
| #define SUN4I_TCON_SAFE_PERIOD_REG 0x1f0 |
| #define SUN4I_TCON_SAFE_PERIOD_NUM(num) (((num) & 0xfff) << 16) |
| #define SUN4I_TCON_SAFE_PERIOD_MODE(mode) ((mode) & 0x3) |
| |
| #define SUN4I_TCON_MUX_CTRL_REG 0x200 |
| |
| #define SUN4I_TCON0_LVDS_ANA0_REG 0x220 |
| #define SUN4I_TCON0_LVDS_ANA0_DCHS BIT(16) |
| #define SUN4I_TCON0_LVDS_ANA0_PD (BIT(20) | BIT(21)) |
| #define SUN4I_TCON0_LVDS_ANA0_EN_MB BIT(22) |
| #define SUN4I_TCON0_LVDS_ANA0_REG_C (BIT(24) | BIT(25)) |
| #define SUN4I_TCON0_LVDS_ANA0_REG_V (BIT(26) | BIT(27)) |
| #define SUN4I_TCON0_LVDS_ANA0_CK_EN (BIT(29) | BIT(28)) |
| |
| #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_TCON0_LVDS_ANA1_REG 0x224 |
| #define SUN4I_TCON0_LVDS_ANA1_INIT (0x1f << 26 | 0x1f << 10) |
| #define SUN4I_TCON0_LVDS_ANA1_UPDATE (0x1f << 16 | 0x1f << 00) |
| |
| #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_TCON_GAMMA_TABLE_REG 0x400 |
| #define SUN4I_TCON_GAMMA_TABLE_B(x) ((x) & 0xff) |
| #define SUN4I_TCON_GAMMA_TABLE_G(x) (((x) & 0xff) << 8) |
| #define SUN4I_TCON_GAMMA_TABLE_R(x) (((x) & 0xff) << 16) |
| |
| #define SUN4I_TCON_GAMMA_LUT_SIZE 256 |
| |
| #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 */ |
| bool needs_edp_reset; /* a80 edp reset needed for tcon0 access */ |
| bool supports_lvds; /* Does the TCON support an LVDS output? */ |
| bool clk_kept_by_ccu; /* On A64 we rely on CCU to keep TCON0 clock stable */ |
| u8 dclk_min_div; /* minimum divider for TCON0 DCLK */ |
| |
| /* callback to handle tcon muxing options */ |
| int (*set_mux)(struct sun4i_tcon *, const struct drm_encoder *); |
| /* handler for LVDS setup routine */ |
| void (*setup_lvds_phy)(struct sun4i_tcon *tcon, |
| const struct drm_encoder *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; |
| |
| /* Platform adjustments */ |
| const struct sun4i_tcon_quirks *quirks; |
| |
| /* Associated crtc */ |
| struct sun4i_crtc *crtc; |
| |
| int id; |
| |
| /* TCON list management */ |
| struct list_head list; |
| |
| bool hw_preconfigured; |
| }; |
| |
| 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); |
| void sun4i_tcon_load_gamma_lut(struct sun4i_tcon *tcon, |
| struct drm_color_lut *lut); |
| void sun4i_tcon_enable_gamma(struct sun4i_tcon *tcon, bool enable); |
| |
| extern const struct of_device_id sun4i_tcon_of_table[]; |
| |
| #endif /* __SUN4I_TCON_H__ */ |
