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android / kernel / google-modules / display / refs/tags/android-t-beta-3.2_r0.4 / . / samsung / panel / panel-samsung-s6e3hc4.c
blob: a9b113ed88237f1e963f7a81db841cba577e93f6 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-only
/*
* MIPI-DSI based s6e3hc4 AMOLED LCD panel driver.
*
* Copyright (c) 2021 Google LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <drm/drm_vblank.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <video/mipi_display.h>
#include <trace/dpu_trace.h>
#include "panel-samsung-drv.h"
/**
* enum s6e3hc4_panel_feature - features supported by this panel
* @FEAT_HBM: high brightness mode
* @FEAT_IRC_OFF: IRC compensation off state
* @FEAT_EARLY_EXIT: early exit from a long frame
* @FEAT_OP_NS: normal speed (not high speed)
* @FEAT_FRAME_AUTO: automatic (not manual) frame control
* @FEAT_MAX: placeholder, counter for number of features
*
* The following features are correlated, if one or more of them change, the others need
* to be updated unconditionally.
*/
enum s6e3hc4_panel_feature {
FEAT_HBM = 0,
FEAT_IRC_OFF,
FEAT_EARLY_EXIT,
FEAT_OP_NS,
FEAT_FRAME_AUTO,
FEAT_MAX,
};
/**
* struct s6e3hc4_panel - panel specific runtime info
*
* This struct maintains s6e3hc4 panel specific runtime info, any fixed details about panel should
* most likely go into struct exynos_panel_desc. The variables with the prefix hw_ keep track of the
* features that were actually committed to hardware, and should be modified after sending cmds to panel,
* i.e. updating hw state.
*/
struct s6e3hc4_panel {
/** @base: base panel struct */
struct exynos_panel base;
/** @feat: software or working correlated features, not guaranteed to be effective in panel */
DECLARE_BITMAP(feat, FEAT_MAX);
/** @hw_feat: correlated states effective in panel */
DECLARE_BITMAP(hw_feat, FEAT_MAX);
/** @hw_vrefresh: vrefresh rate effective in panel */
u32 hw_vrefresh;
/** @hw_idle_vrefresh: idle vrefresh rate effective in panel */
u32 hw_idle_vrefresh;
/**
* @auto_mode_vrefresh: indicates current minimum refresh rate while in auto mode,
* if 0 it means that auto mode is not enabled
*/
u32 auto_mode_vrefresh;
/** @force_changeable_te: force changeable TE (instead of fixed) during early exit */
bool force_changeable_te;
};
#define to_spanel(ctx) container_of(ctx, struct s6e3hc4_panel, base)
static const unsigned char WQHD_PPS_SETTING[DSC_PPS_SIZE] = {
0x11, 0x00, 0x00, 0x89, 0x30, 0x80, 0x0C, 0x30,
0x05, 0xA0, 0x00, 0x34, 0x02, 0xD0, 0x02, 0xD0,
0x02, 0x00, 0x02, 0x68, 0x00, 0x20, 0x05, 0xC6,
0x00, 0x0A, 0x00, 0x0C, 0x01, 0xE2, 0x01, 0x78,
0x18, 0x00, 0x10, 0xF0, 0x03, 0x0C, 0x20, 0x00,
0x06, 0x0B, 0x0B, 0x33, 0x0E, 0x1C, 0x2A, 0x38,
0x46, 0x54, 0x62, 0x69, 0x70, 0x77, 0x79, 0x7B,
0x7D, 0x7E, 0x01, 0x02, 0x01, 0x00, 0x09, 0x40,
0x09, 0xBE, 0x19, 0xFC, 0x19, 0xFA, 0x19, 0xF8,
0x1A, 0x38, 0x1A, 0x78, 0x1A, 0xB6, 0x2A, 0xF6,
0x2B, 0x34, 0x2B, 0x74, 0x3B, 0x74, 0x6B, 0xF4,
};
static const unsigned char FHD_PPS_SETTING[DSC_PPS_SIZE] = {
0x11, 0x00, 0x00, 0x89, 0x30, 0x80, 0x09, 0x24,
0x04, 0x38, 0x00, 0x4E, 0x02, 0x1C, 0x02, 0x1C,
0x02, 0x00, 0x02, 0x0E, 0x00, 0x20, 0x07, 0x93,
0x00, 0x07, 0x00, 0x0C, 0x01, 0x40, 0x01, 0x4E,
0x18, 0x00, 0x10, 0xF0, 0x03, 0x0C, 0x20, 0x00,
0x06, 0x0B, 0x0B, 0x33, 0x0E, 0x1C, 0x2A, 0x38,
0x46, 0x54, 0x62, 0x69, 0x70, 0x77, 0x79, 0x7B,
0x7D, 0x7E, 0x01, 0x02, 0x01, 0x00, 0x09, 0x40,
0x09, 0xBE, 0x19, 0xFC, 0x19, 0xFA, 0x19, 0xF8,
0x1A, 0x38, 0x1A, 0x78, 0x1A, 0xB6, 0x2A, 0xF6,
0x2B, 0x34, 0x2B, 0x74, 0x3B, 0x74, 0x6B, 0xF4,
};
#define S6E3HC4_WRCTRLD_DIMMING_BIT 0x08
#define S6E3HC4_WRCTRLD_BCTRL_BIT 0x20
#define S6E3HC4_WRCTRLD_HBM_BIT 0xC0
#define S6E3HC4_WRCTRLD_LOCAL_HBM_BIT 0x10
#define S6E3HC4_TE2_CHANGEABLE 0x04
#define S6E3HC4_TE2_FIXED 0x51
#define S6E3HC4_TE2_RISING_EDGE_OFFSET 0x10
#define S6E3HC4_TE2_FALLING_EDGE_OFFSET 0x30
#define S6E3HC4_TE2_FALLING_EDGE_OFFSET_NS 0x25
static const u8 unlock_cmd_f0[] = { 0xF0, 0x5A, 0x5A };
static const u8 lock_cmd_f0[] = { 0xF0, 0xA5, 0xA5 };
static const u8 unlock_cmd_fc[] = { 0xFC, 0x5A, 0x5A };
static const u8 lock_cmd_fc[] = { 0xFC, 0xA5, 0xA5 };
static const u8 display_off[] = { 0x28 };
static const u8 display_on[] = { 0x29 };
static const u8 sleep_in[] = { 0x10 };
static const u8 freq_update[] = { 0xF7, 0x0F };
static const u8 nop[] = { 0x00 };
static const struct exynos_dsi_cmd s6e3hc4_sleepin_cmds[] = {
/* SP back failure workaround on EVT */
EXYNOS_DSI_CMD(sleep_in, 10),
EXYNOS_DSI_CMD0_REV(unlock_cmd_fc, PANEL_REV_LT(PANEL_REV_DVT1_1)),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xB0, 0x00, 0x0D, 0xFE),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xFE, 0x02),
EXYNOS_DSI_CMD0_REV(lock_cmd_fc, PANEL_REV_LT(PANEL_REV_DVT1_1)),
EXYNOS_DSI_CMD(nop, 100),
};
static DEFINE_EXYNOS_CMD_SET(s6e3hc4_sleepin);
static const struct exynos_dsi_cmd s6e3hc4_lp_cmds[] = {
EXYNOS_DSI_CMD0(display_off),
EXYNOS_DSI_CMD0(unlock_cmd_f0),
/* Fixed TE: sync on */
EXYNOS_DSI_CMD_SEQ(0xB9, 0x51),
/* Set freq at 30 Hz */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x01, 0x60),
EXYNOS_DSI_CMD_SEQ(0x60, 0x00),
/* Set 10 Hz idle */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x18, 0xBD),
EXYNOS_DSI_CMD_SEQ(0xBD, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00),
EXYNOS_DSI_CMD_SEQ(0xBD, 0x25),
/* AOD timing */
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xB0, 0x00, 0x3D, 0xF6),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xF6, 0xAF, 0xB1),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xB0, 0x00, 0x41, 0xF6),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xF6, 0xB3),
EXYNOS_DSI_CMD0(freq_update),
/* AOD low mode setting */
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1), 0xB0, 0x01, 0x7D, 0x94),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1), 0x94, 0x1C),
EXYNOS_DSI_CMD0(lock_cmd_f0),
};
static DEFINE_EXYNOS_CMD_SET(s6e3hc4_lp);
static const struct exynos_dsi_cmd s6e3hc4_lp_off_cmds[] = {
EXYNOS_DSI_CMD0(display_off),
EXYNOS_DSI_CMD0(unlock_cmd_f0),
/* AOD low mode off */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x52, 0x94),
EXYNOS_DSI_CMD_SEQ(0x94, 0x00),
EXYNOS_DSI_CMD_SEQ(0x53, 0x20),
EXYNOS_DSI_CMD0(lock_cmd_f0),
};
static const struct exynos_dsi_cmd s6e3hc4_lp_low_cmds[] = {
EXYNOS_DSI_CMD0(unlock_cmd_f0),
/* AOD 10 nit */
EXYNOS_DSI_CMD_SEQ(0x53, 0x25),
/* AOD low Mode, 10 nit */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x52, 0x94),
EXYNOS_DSI_CMD_SEQ(0x94, 0x01, 0x07, 0x98, 0x02),
EXYNOS_DSI_CMD_SEQ(0x51, 0x00, 0x01),
EXYNOS_DSI_CMD(lock_cmd_f0, 34),
EXYNOS_DSI_CMD0(display_on),
};
static const struct exynos_dsi_cmd s6e3hc4_lp_high_cmds[] = {
EXYNOS_DSI_CMD0(unlock_cmd_f0),
/* AOD 50 nit */
EXYNOS_DSI_CMD_SEQ(0x53, 0x24),
/* AOD high Mode, 50 nit */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x52, 0x94),
EXYNOS_DSI_CMD_SEQ(0x94, 0x00, 0x07, 0x98, 0x02),
EXYNOS_DSI_CMD_SEQ(0x51, 0x00, 0x01),
EXYNOS_DSI_CMD(lock_cmd_f0, 34),
EXYNOS_DSI_CMD0(display_on),
};
static const struct exynos_binned_lp s6e3hc4_binned_lp[] = {
BINNED_LP_MODE("off", 0, s6e3hc4_lp_off_cmds),
BINNED_LP_MODE_TIMING("low", 80, s6e3hc4_lp_low_cmds,
S6E3HC4_TE2_RISING_EDGE_OFFSET, S6E3HC4_TE2_FALLING_EDGE_OFFSET),
BINNED_LP_MODE_TIMING("high", 2047, s6e3hc4_lp_high_cmds,
S6E3HC4_TE2_RISING_EDGE_OFFSET, S6E3HC4_TE2_FALLING_EDGE_OFFSET)
};
static u8 s6e3hc4_get_te2_option(struct exynos_panel *ctx)
{
struct s6e3hc4_panel *spanel = to_spanel(ctx);
if (!ctx || !ctx->current_mode)
return S6E3HC4_TE2_CHANGEABLE;
if (ctx->current_mode->exynos_mode.is_lp_mode ||
(test_bit(FEAT_EARLY_EXIT, spanel->feat) &&
spanel->auto_mode_vrefresh < 30))
return S6E3HC4_TE2_FIXED;
return S6E3HC4_TE2_CHANGEABLE;
}
static void s6e3hc4_update_te2_internal(struct exynos_panel *ctx, bool lock)
{
struct exynos_panel_te2_timing timing = {
.rising_edge = S6E3HC4_TE2_RISING_EDGE_OFFSET,
.falling_edge = S6E3HC4_TE2_FALLING_EDGE_OFFSET,
};
u32 rising, falling;
struct s6e3hc4_panel *spanel = to_spanel(ctx);
u8 option = s6e3hc4_get_te2_option(ctx);
u8 idx;
int ret;
if (!ctx)
return;
ret = exynos_panel_get_current_mode_te2(ctx, &timing);
if (ret) {
dev_dbg(ctx->dev, "failed to get TE2 timng\n");
return;
}
rising = timing.rising_edge;
falling = timing.falling_edge;
if (option == S6E3HC4_TE2_CHANGEABLE && test_bit(FEAT_OP_NS, spanel->feat))
falling = S6E3HC4_TE2_FALLING_EDGE_OFFSET_NS;
ctx->te2.option = (option == S6E3HC4_TE2_FIXED) ? TE2_OPT_FIXED : TE2_OPT_CHANGEABLE;
dev_dbg(ctx->dev,
"TE2 updated: option %s, idle %s, rising=0x%X falling=0x%X\n",
(option == S6E3HC4_TE2_CHANGEABLE) ? "changeable" : "fixed",
ctx->panel_idle_vrefresh ? "active" : "inactive",
rising, falling);
if (lock)
EXYNOS_DCS_BUF_ADD_SET(ctx, unlock_cmd_f0);
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, 0x42, 0xF2);
EXYNOS_DCS_BUF_ADD(ctx, 0xF2, 0x0D);
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, 0x01, 0xB9);
EXYNOS_DCS_BUF_ADD(ctx, 0xB9, option);
idx = option == S6E3HC4_TE2_FIXED ? 0x22 : 0x1E;
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, idx, 0xB9);
if (option == S6E3HC4_TE2_FIXED) {
EXYNOS_DCS_BUF_ADD(ctx, 0xB9, (rising >> 8) & 0xF, rising & 0xFF,
(falling >> 8) & 0xF, falling & 0xFF,
(rising >> 8) & 0xF, rising & 0xFF,
(falling >> 8) & 0xF, falling & 0xFF);
} else {
EXYNOS_DCS_BUF_ADD(ctx, 0xB9, (rising >> 8) & 0xF, rising & 0xFF,
(falling >> 8) & 0xF, falling & 0xFF);
}
if (lock)
EXYNOS_DCS_BUF_ADD_SET_AND_FLUSH(ctx, lock_cmd_f0);
}
static void s6e3hc4_update_te2(struct exynos_panel *ctx)
{
s6e3hc4_update_te2_internal(ctx, true);
}
static inline bool is_auto_mode_allowed(struct exynos_panel *ctx)
{
/* don't want to enable auto mode/early exit during hbm or dimming on */
if (IS_HBM_ON(ctx->hbm_mode) || ctx->dimming_on)
return false;
if (ctx->idle_delay_ms) {
const unsigned int delta_ms = panel_get_idle_time_delta(ctx);
if (delta_ms < ctx->idle_delay_ms)
return false;
}
return ctx->panel_idle_enabled;
}
static u32 s6e3hc4_get_min_idle_vrefresh(struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode)
{
const int vrefresh = drm_mode_vrefresh(&pmode->mode);
int min_idle_vrefresh = ctx->min_vrefresh;
if ((min_idle_vrefresh < 0) || !is_auto_mode_allowed(ctx))
return 0;
if (min_idle_vrefresh <= 10)
min_idle_vrefresh = 10;
else if (min_idle_vrefresh <= 30)
min_idle_vrefresh = 30;
else if (min_idle_vrefresh <= 60)
min_idle_vrefresh = 60;
else
return 0;
if (min_idle_vrefresh >= vrefresh) {
dev_dbg(ctx->dev, "min idle vrefresh (%d) higher than target (%d)\n",
min_idle_vrefresh, vrefresh);
return 0;
}
return min_idle_vrefresh;
}
static void s6e3hc4_update_panel_feat(struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode, bool enforce)
{
struct s6e3hc4_panel *spanel = to_spanel(ctx);
u32 vrefresh, idle_vrefresh = spanel->auto_mode_vrefresh;
u8 val;
DECLARE_BITMAP(changed_feat, FEAT_MAX);
if (pmode)
vrefresh = drm_mode_vrefresh(&pmode->mode);
else
vrefresh = drm_mode_vrefresh(&ctx->current_mode->mode);
if (enforce) {
bitmap_fill(changed_feat, FEAT_MAX);
} else {
bitmap_xor(changed_feat, spanel->feat, spanel->hw_feat, FEAT_MAX);
if (bitmap_empty(changed_feat, FEAT_MAX) &&
vrefresh == spanel->hw_vrefresh &&
idle_vrefresh == spanel->hw_idle_vrefresh)
return;
}
spanel->hw_vrefresh = vrefresh;
spanel->hw_idle_vrefresh = idle_vrefresh;
bitmap_copy(spanel->hw_feat, spanel->feat, FEAT_MAX);
dev_dbg(ctx->dev,
"op=%s ee=%s hbm=%s irc=%s fi=%s fps=%u idle_fps=%u\n",
test_bit(FEAT_OP_NS, spanel->feat) ? "ns" : "hs",
test_bit(FEAT_EARLY_EXIT, spanel->feat) ? "on" : "off",
test_bit(FEAT_HBM, spanel->feat) ? "on" : "off",
test_bit(FEAT_IRC_OFF, spanel->feat) ? "off" : "on",
test_bit(FEAT_FRAME_AUTO, spanel->feat) ? "auto" : "manual",
vrefresh,
idle_vrefresh);
EXYNOS_DCS_BUF_ADD_SET(ctx, unlock_cmd_f0);
/* TE width setting */
if (test_bit(FEAT_OP_NS, changed_feat)) {
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, 0x04, 0xB9);
val = test_bit(FEAT_OP_NS, spanel->feat) ? 0x5E : 0x42;
/* Changeable TE setting for 120Hz */
EXYNOS_DCS_BUF_ADD(ctx, 0xB9, 0x0C, val, 0x00, 0x1B,
/* Fixed TE setting */
0x0C, val, 0x00, 0x1B, 0x0C, val, 0x00, 0x1B);
}
/* TE setting */
if (test_bit(FEAT_EARLY_EXIT, changed_feat) ||
test_bit(FEAT_OP_NS, changed_feat)) {
if (test_bit(FEAT_EARLY_EXIT, spanel->feat) && !spanel->force_changeable_te) {
/* Fixed TE */
EXYNOS_DCS_BUF_ADD(ctx, 0xB9, 0x51);
} else {
/* Changeable TE */
EXYNOS_DCS_BUF_ADD(ctx, 0xB9, 0x04);
}
}
/* TE2 setting */
if (test_bit(FEAT_OP_NS, changed_feat))
s6e3hc4_update_te2_internal(ctx, false);
/* HBM IRC setting */
if (test_bit(FEAT_IRC_OFF, changed_feat)) {
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x01, 0x9B, 0x92);
if (test_bit(FEAT_IRC_OFF, spanel->feat)) {
EXYNOS_DCS_BUF_ADD(ctx, 0x92, 0x01);
if (ctx->panel_rev >= PANEL_REV_EVT1_1) {
/* IR compensation SP setting */
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x02, 0xF3, 0x68);
EXYNOS_DCS_BUF_ADD(ctx, 0x68, 0x20, 0x1E, 0x0C, 0x82, 0x82, 0x78);
}
} else {
EXYNOS_DCS_BUF_ADD(ctx, 0x92, 0x21);
if (ctx->panel_rev >= PANEL_REV_EVT1_1) {
/* IR compensation SP setting */
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x02, 0xF3, 0x68);
EXYNOS_DCS_BUF_ADD(ctx, 0x68, 0x0A, 0x0F, 0x0A, 0x0A, 0x0A, 0x0A);
}
}
}
/* HBM ELVSS setting */
if (ctx->panel_rev <= PANEL_REV_EVT1_1 && test_bit(FEAT_OP_NS, changed_feat)) {
val = test_bit(FEAT_OP_NS, spanel->feat) ? 0x7C : 0x76;
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x01, val, 0x94);
EXYNOS_DCS_BUF_ADD(ctx, 0x94, 0x02);
if (test_bit(FEAT_OP_NS, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x02, 0x2C, 0x94);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x01, 0xCC, 0x94);
EXYNOS_DCS_BUF_ADD(ctx, 0x94, 0x03, 0x02, 0x01);
}
/*
* Operating Mode: NS or HS
*
* Description: the configs could possibly be overrided by frequency setting,
* depending on FI mode.
*/
if (test_bit(FEAT_OP_NS, changed_feat)) {
/* mode set */
EXYNOS_DCS_BUF_ADD(ctx, 0xF2, 0x01);
val = test_bit(FEAT_OP_NS, spanel->feat) ? 0x18 : 0x00;
EXYNOS_DCS_BUF_ADD(ctx, 0x60, val);
}
/*
* Note: the following command sequence should be sent as a whole if one of panel
* state defined by enum panel_state changes or at turning on panel, or unexpected
* behaviors will be seen, e.g. black screen, flicker.
*/
/*
* Early-exit: enable or disable
*
* Description: early-exit sequence overrides some configs HBM set.
*/
if (test_bit(FEAT_EARLY_EXIT, spanel->feat)) {
if (test_bit(FEAT_HBM, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x21, 0x00, 0x83, 0x03, 0x01);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x21, 0x01, 0x83, 0x03, 0x03);
} else {
if (test_bit(FEAT_HBM, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x21, 0x80, 0x83, 0x03, 0x01);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x21, 0x81, 0x83, 0x03, 0x03);
}
val = test_bit(FEAT_OP_NS, spanel->feat) ? 0x4E : 0x1E;
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, val, 0xBD);
if (test_bit(FEAT_HBM, spanel->feat)) {
if (test_bit(FEAT_OP_NS, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00, 0x00, 0x02,
0x00, 0x04, 0x00, 0x0A);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00, 0x00, 0x01,
0x00, 0x03, 0x00, 0x0B);
} else {
if (test_bit(FEAT_OP_NS, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00, 0x00, 0x04,
0x00, 0x08, 0x00, 0x14);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00, 0x00, 0x02,
0x00, 0x06, 0x00, 0x16);
}
/*
* Frequency setting: FI, frequency, idle frequency
*
* Description: this sequence possibly overrides some configs early-exit
* and operation set, depending on FI mode.
*/
if (test_bit(FEAT_FRAME_AUTO, spanel->feat)) {
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, 0x0C, 0xBD);
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00);
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, 0x12, 0xBD);
if (test_bit(FEAT_OP_NS, spanel->feat)) {
if (idle_vrefresh == 10) {
val = test_bit(FEAT_HBM, spanel->feat) ? 0x0A : 0x12;
EXYNOS_DCS_BUF_ADD(ctx,
0xBD, 0x00, 0x00, val, 0x00, 0x02, 0x01);
} else {
/* 30 Hz idle */
val = test_bit(FEAT_HBM, spanel->feat) ? 0x02 : 0x03;
EXYNOS_DCS_BUF_ADD(ctx,
0xBD, 0x00, 0x00, val, 0x00, 0x00, 0x00);
}
} else {
if (idle_vrefresh == 10) {
if (test_bit(FEAT_HBM, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00,
0x0B, 0x00, 0x03, 0x01);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00,
0x16, 0x00, 0x06, 0x01);
} else if (idle_vrefresh == 30) {
if (test_bit(FEAT_HBM, spanel->feat))
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00,
0x03, 0x00, 0x02, 0x01);
else
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x00, 0x00,
0x06, 0x00, 0x04, 0x01);
} else {
/* 60 Hz idle */
val = test_bit(FEAT_HBM, spanel->feat) ? 0x01 : 0x02;
EXYNOS_DCS_BUF_ADD(ctx,
0xBD, 0x00, 0x00, val, 0x00, 0x00, 0x00);
}
}
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x23);
} else {
EXYNOS_DCS_BUF_ADD(ctx, 0xBD, 0x21);
if (test_bit(FEAT_OP_NS, spanel->feat)) {
if (vrefresh == 10)
val = 0x1B;
else if (vrefresh == 30)
val = 0x19;
else
val = 0x18;
} else {
if (vrefresh == 10)
val = 0x03;
else if (vrefresh == 30)
val = 0x02;
else if (vrefresh == 60)
val = 0x01;
else
val = 0x00;
}
EXYNOS_DCS_BUF_ADD(ctx, 0x60, val);
}
EXYNOS_DCS_BUF_ADD_SET(ctx, freq_update);
EXYNOS_DCS_BUF_ADD_SET_AND_FLUSH(ctx, lock_cmd_f0);;
}
static void s6e3hc4_update_refresh_mode(struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode,
const u32 idle_vrefresh)
{
struct s6e3hc4_panel *spanel = to_spanel(ctx);
u32 vrefresh = drm_mode_vrefresh(&pmode->mode);
dev_dbg(ctx->dev, "%s: mode: %s set idle_vrefresh: %u\n", __func__,
pmode->mode.name, idle_vrefresh);
if (idle_vrefresh)
set_bit(FEAT_FRAME_AUTO, spanel->feat);
else
clear_bit(FEAT_FRAME_AUTO, spanel->feat);
if (vrefresh == 120 || idle_vrefresh)
set_bit(FEAT_EARLY_EXIT, spanel->feat);
else
clear_bit(FEAT_EARLY_EXIT, spanel->feat);
spanel->auto_mode_vrefresh = idle_vrefresh;
/*
* Note: when mode is explicitly set, panel performs early exit to get out
* of idle at next vsync, and will not back to idle until not seeing new
* frame traffic for a while. If idle_vrefresh != 0, try best to guess what
* panel_idle_vrefresh will be soon, and s6e3hc3_c10_update_idle_state() in
* new frame commit will correct it if the guess is wrong.
*/
ctx->panel_idle_vrefresh = idle_vrefresh;
s6e3hc4_update_panel_feat(ctx, pmode, false);
te2_state_changed(ctx->bl);
backlight_state_changed(ctx->bl);
}
static void s6e3hc4_change_frequency(struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode)
{
u32 vrefresh = drm_mode_vrefresh(&pmode->mode);
u32 idle_vrefresh = 0;
if (vrefresh > ctx->op_hz) {
dev_err(ctx->dev,
"invalid freq setting: op_hz=%u, vrefresh=%u\n",
ctx->op_hz, vrefresh);
return;
}
if (pmode->idle_mode == IDLE_MODE_ON_INACTIVITY)
idle_vrefresh = s6e3hc4_get_min_idle_vrefresh(ctx, pmode);
s6e3hc4_update_refresh_mode(ctx, pmode, idle_vrefresh);
dev_dbg(ctx->dev, "change to %u hz)\n", vrefresh);
}
static void s6e3hc4_panel_idle_notification(struct exynos_panel *ctx,
u32 display_id, u32 vrefresh, u32 idle_te_vrefresh)
{
char event_string[64];
char *envp[] = { event_string, NULL };
struct drm_device *dev = ctx->bridge.dev;
if (!dev) {
dev_warn(ctx->dev, "%s: drm_device is null\n", __func__);
} else {
snprintf(event_string, sizeof(event_string),
"PANEL_IDLE_ENTER=%u,%u,%u", display_id, vrefresh, idle_te_vrefresh);
kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp);
}
}
static bool s6e3hc4_set_self_refresh(struct exynos_panel *ctx, bool enable)
{
const struct exynos_panel_mode *pmode = ctx->current_mode;
struct s6e3hc4_panel *spanel = to_spanel(ctx);
u32 idle_vrefresh;
if (unlikely(!pmode))
return false;
/* self refresh is not supported in lp mode since that always makes use of early exit */
if (pmode->exynos_mode.is_lp_mode)
return false;
idle_vrefresh = s6e3hc4_get_min_idle_vrefresh(ctx, pmode);
if (pmode->idle_mode != IDLE_MODE_ON_SELF_REFRESH) {
/*
* if idle mode is on inactivity, may need to update the target fps for auto mode,
* or switch to manual mode if idle should be disabled (idle_vrefresh=0)
*/
if ((pmode->idle_mode == IDLE_MODE_ON_INACTIVITY) &&
(spanel->auto_mode_vrefresh != idle_vrefresh)) {
s6e3hc4_update_refresh_mode(ctx, pmode, idle_vrefresh);
return true;
}
return false;
}
if (!enable)
idle_vrefresh = 0;
/* if there's no change in idle state then skip cmds */
if (ctx->panel_idle_vrefresh == idle_vrefresh)
return false;
DPU_ATRACE_BEGIN(__func__);
s6e3hc4_update_refresh_mode(ctx, pmode, idle_vrefresh);
if (idle_vrefresh) {
const int vrefresh = drm_mode_vrefresh(&pmode->mode);
s6e3hc4_panel_idle_notification(ctx, 0, vrefresh, 120);
} else if (ctx->panel_need_handle_idle_exit) {
struct drm_crtc *crtc = NULL;
if (ctx->exynos_connector.base.state)
crtc = ctx->exynos_connector.base.state->crtc;
/*
* after exit idle mode with fixed TE at non-120hz, TE may still keep at 120hz.
* If any layer that already be assigned to DPU that can't be handled at 120hz,
* panel_need_handle_idle_exit will be set then we need to wait one vblank to
* avoid underrun issue.
*/
dev_dbg(ctx->dev, "wait one vblank after exit idle\n");
DPU_ATRACE_BEGIN("wait_one_vblank");
if (crtc) {
int ret = drm_crtc_vblank_get(crtc);
if (!ret) {
drm_crtc_wait_one_vblank(crtc);
drm_crtc_vblank_put(crtc);
} else {
usleep_range(8350, 8500);
}
} else {
usleep_range(8350, 8500);
}
DPU_ATRACE_END("wait_one_vblank");
}
DPU_ATRACE_END(__func__);
return true;
}
static int s6e3hc4_atomic_check(struct exynos_panel *ctx, struct drm_atomic_state *state)
{
struct drm_connector *conn = &ctx->exynos_connector.base;
struct drm_connector_state *new_conn_state = drm_atomic_get_new_connector_state(state, conn);
struct drm_crtc_state *old_crtc_state, *new_crtc_state;
struct s6e3hc4_panel *spanel = to_spanel(ctx);
if (drm_mode_vrefresh(&ctx->current_mode->mode) == 120 ||
!new_conn_state || !new_conn_state->crtc)
return 0;
new_crtc_state = drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
old_crtc_state = drm_atomic_get_old_crtc_state(state, new_conn_state->crtc);
if (!old_crtc_state || !new_crtc_state || !new_crtc_state->active)
return 0;
if ((spanel->auto_mode_vrefresh && old_crtc_state->self_refresh_active) ||
!drm_atomic_crtc_effectively_active(old_crtc_state)) {
struct drm_display_mode *mode = &new_crtc_state->adjusted_mode;
/* set clock to max refresh rate on self refresh exit or resume due to early exit */
mode->clock = mode->htotal * mode->vtotal * 120 / 1000;
if (mode->clock != new_crtc_state->mode.clock) {
new_crtc_state->mode_changed = true;
dev_dbg(ctx->dev, "raise mode (%s) clock to 120hz on %s\n",
mode->name,
old_crtc_state->self_refresh_active ? "self refresh exit" : "resume");
}
} else if (old_crtc_state->active_changed &&
(old_crtc_state->adjusted_mode.clock != old_crtc_state->mode.clock)) {
/* clock hacked in last commit due to self refresh exit or resume, undo that */
new_crtc_state->mode_changed = true;
new_crtc_state->adjusted_mode.clock = new_crtc_state->mode.clock;
dev_dbg(ctx->dev, "restore mode (%s) clock after self refresh exit or resume\n",
new_crtc_state->mode.name);
}
return 0;
}
static void s6e3hc4_write_display_mode(struct exynos_panel *ctx,
const struct drm_display_mode *mode)
{
u8 val = S6E3HC4_WRCTRLD_BCTRL_BIT;
if (IS_HBM_ON(ctx->hbm_mode))
val |= S6E3HC4_WRCTRLD_HBM_BIT;
if (ctx->hbm.local_hbm.enabled)
val |= S6E3HC4_WRCTRLD_LOCAL_HBM_BIT;
if (ctx->dimming_on)
val |= S6E3HC4_WRCTRLD_DIMMING_BIT;
dev_dbg(ctx->dev,
"%s(wrctrld:0x%x, hbm: %s, dimming: %s local_hbm: %s)\n",
__func__, val, IS_HBM_ON(ctx->hbm_mode) ? "on" : "off",
ctx->dimming_on ? "on" : "off",
ctx->hbm.local_hbm.enabled ? "on" : "off");
EXYNOS_DCS_BUF_ADD_AND_FLUSH(ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, val);
}
#define MAX_BR_HBM_EVT1 3949
static int s6e3hc4_set_brightness(struct exynos_panel *ctx, u16 br)
{
u16 brightness;
if (ctx->current_mode->exynos_mode.is_lp_mode) {
const struct exynos_panel_funcs *funcs;
funcs = ctx->desc->exynos_panel_func;
if (funcs && funcs->set_binned_lp)
funcs->set_binned_lp(ctx, br);
return 0;
}
if (ctx->panel_rev <= PANEL_REV_EVT1 && br >= MAX_BR_HBM_EVT1) {
br = MAX_BR_HBM_EVT1;
dev_dbg(ctx->dev, "%s: capped to dbv(%d) for EVT1 and before\n",
__func__, MAX_BR_HBM_EVT1);
}
brightness = (br & 0xff) << 8 | br >> 8;
return exynos_dcs_set_brightness(ctx, brightness);
}
static void s6e3hc4_set_nolp_mode(struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode)
{
u32 vrefresh = drm_mode_vrefresh(&pmode->mode);
u32 delay_us = mult_frac(1000, 1020, vrefresh);
/* clear the brightness level */
EXYNOS_DCS_WRITE_SEQ(ctx, 0x51, 0x00, 0x00);
EXYNOS_DCS_WRITE_TABLE(ctx, display_off);
/* AOD low mode setting off */
EXYNOS_DCS_BUF_ADD_SET(ctx, unlock_cmd_f0);
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x00, 0x52, 0x94);
EXYNOS_DCS_BUF_ADD(ctx, 0x94, 0x00);
EXYNOS_DCS_BUF_ADD_SET_AND_FLUSH(ctx, lock_cmd_f0);
s6e3hc4_update_panel_feat(ctx, pmode, true);
/* backlight control and dimming */
s6e3hc4_write_display_mode(ctx, &pmode->mode);
s6e3hc4_change_frequency(ctx, pmode);
usleep_range(delay_us, delay_us + 10);
EXYNOS_DCS_WRITE_TABLE(ctx, display_on);
dev_info(ctx->dev, "exit LP mode\n");
}
static const struct exynos_dsi_cmd s6e3hc4_init_cmds[] = {
EXYNOS_DSI_CMD0_REV(unlock_cmd_fc, PANEL_REV_LT(PANEL_REV_DVT1_1)),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xB0, 0x00, 0x0D, 0xFE),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_DVT1_1), 0xFE, 0x00),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_EVT1_1), 0xB0, 0x01, 0x37, 0x90),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_EVT1_1), 0x90, 0x00),
EXYNOS_DSI_CMD0_REV(lock_cmd_fc, PANEL_REV_LT(PANEL_REV_DVT1_1)),
EXYNOS_DSI_CMD(nop, 120),
/* Enable TE*/
EXYNOS_DSI_CMD_SEQ(0x35),
EXYNOS_DSI_CMD0(unlock_cmd_f0),
/* Enable SP */
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_EVT1_1), 0xB0, 0x00, 0x58, 0x69),
EXYNOS_DSI_CMD_SEQ_REV(PANEL_REV_LT(PANEL_REV_EVT1_1), 0x69, 0x01),
/* FFC: 165 Mhz, 1% tolerance */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x36, 0xC5),
EXYNOS_DSI_CMD_SEQ(0xC5, 0x11, 0x10, 0x50, 0x05, 0x4E, 0x74),
/* NS transition flicker setting */
EXYNOS_DSI_CMD_SEQ(0xAB, 0x83),
/* TSP sync auto mode settings*/
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x3C, 0xB9),
EXYNOS_DSI_CMD_SEQ(0xB9, 0x19, 0x09),
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x40, 0xB9),
EXYNOS_DSI_CMD_SEQ(0xB9, 0x30, 0x03),
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x05, 0xF2),
EXYNOS_DSI_CMD_SEQ(0xF2, 0xC8, 0xC0),
/* Set frame insertion count */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x00, 0x10, 0xBD),
EXYNOS_DSI_CMD_SEQ(0xBD, 0x00),
EXYNOS_DSI_CMD0(freq_update),
EXYNOS_DSI_CMD0(lock_cmd_f0),
/* CASET */
EXYNOS_DSI_CMD_SEQ(0x2A, 0x00, 0x00, 0x05, 0x9F),
/* PASET */
EXYNOS_DSI_CMD_SEQ(0x2B, 0x00, 0x00, 0x0C, 0x2F),
};
static DEFINE_EXYNOS_CMD_SET(s6e3hc4_init);
static int s6e3hc4_enable(struct drm_panel *panel)
{
struct exynos_panel *ctx = container_of(panel, struct exynos_panel, panel);
const struct exynos_panel_mode *pmode = ctx->current_mode;
const struct drm_display_mode *mode;
const bool needs_reset = !is_panel_enabled(ctx);
bool is_fhd;
if (!pmode) {
dev_err(ctx->dev, "no current mode set\n");
return -EINVAL;
}
mode = &pmode->mode;
is_fhd = mode->hdisplay == 1080;
dev_dbg(ctx->dev, "%s\n", __func__);
if (needs_reset)
exynos_panel_reset(ctx);
/* DSC related configuration */
EXYNOS_DCS_WRITE_SEQ(ctx, 0x9D, 0x01);
EXYNOS_PPS_WRITE_BUF(ctx, is_fhd ? FHD_PPS_SETTING : WQHD_PPS_SETTING);
if (needs_reset) {
u32 delay = 10;
EXYNOS_DCS_WRITE_SEQ_DELAY(ctx, delay, MIPI_DCS_EXIT_SLEEP_MODE);
exynos_panel_send_cmd_set(ctx, &s6e3hc4_init_cmd_set);
}
EXYNOS_DCS_BUF_ADD_SET(ctx, unlock_cmd_f0);
EXYNOS_DCS_BUF_ADD(ctx, 0xC3, is_fhd ? 0x0D : 0x0C);
if (ctx->panel_rev >= PANEL_REV_EVT1_1 && ctx->panel_rev <= PANEL_REV_DVT1_1) {
EXYNOS_DCS_BUF_ADD(ctx, 0xB0, 0x02, 0xFD, 0x95);
EXYNOS_DCS_BUF_ADD(ctx, 0x95, 0x80, 0x44, 0x08, 0x81, 0x10, 0x17, 0x74);
}
EXYNOS_DCS_BUF_ADD_SET_AND_FLUSH(ctx, lock_cmd_f0);
s6e3hc4_update_panel_feat(ctx, pmode, true);
s6e3hc4_write_display_mode(ctx, mode); /* dimming and HBM */
s6e3hc4_change_frequency(ctx, pmode);
if (pmode->exynos_mode.is_lp_mode)
exynos_panel_set_lp_mode(ctx, pmode);
else if (needs_reset || (ctx->panel_state == PANEL_STATE_BLANK))
EXYNOS_DCS_WRITE_TABLE(ctx, display_on);
return 0;
}
static int s6e3hc4_disable(struct drm_panel *panel)
{
struct exynos_panel *ctx = container_of(panel, struct exynos_panel, panel);
struct s6e3hc4_panel *spanel = to_spanel(ctx);
int ret;
/* skip disable sequence if going through modeset */
if (ctx->panel_state == PANEL_STATE_MODESET)
return 0;
ret = exynos_panel_disable(panel);
if (ret)
return ret;
/* panel register state gets reset after disabling hardware */
bitmap_clear(spanel->hw_feat, 0, FEAT_MAX);
spanel->hw_vrefresh = 60;
spanel->hw_idle_vrefresh = 0;
EXYNOS_DCS_WRITE_TABLE_DELAY(ctx, 20, display_off);
if (ctx->panel_state == PANEL_STATE_OFF)
exynos_panel_send_cmd_set(ctx, &s6e3hc4_sleepin_cmd_set);
return 0;
}
/*
* 120hz auto mode takes at least 2 frames to start lowering refresh rate in addition to
* time to next vblank. Use just over 2 frames time to consider worst case scenario
*/
#define EARLY_EXIT_THRESHOLD_US 17000
/**
* s6e3hc4_update_idle_state - update panel auto frame insertion state
* @ctx: panel struct
*
* - update timestamp of switching to manual mode in case its been a while since the
* last frame update and auto mode may have started to lower refresh rate.
* - disable auto refresh mode if there is switching delay requirement
* - trigger early exit by command if it's changeable TE, which could result in
* fast 120 Hz boost and seeing 120 Hz TE earlier
*/
static void s6e3hc4_update_idle_state(struct exynos_panel *ctx)
{
s64 delta_us;
struct s6e3hc4_panel *spanel = to_spanel(ctx);
ctx->panel_idle_vrefresh = 0;
if (!test_bit(FEAT_FRAME_AUTO, spanel->feat))
return;
delta_us = ktime_us_delta(ktime_get(), ctx->last_commit_ts);
if (delta_us < EARLY_EXIT_THRESHOLD_US) {
dev_dbg(ctx->dev, "skip early exit. %lldus since last commit\n",
delta_us);
return;
}
/* triggering early exit causes a switch to 120hz */
ctx->last_mode_set_ts = ktime_get();
DPU_ATRACE_BEGIN(__func__);
/*
* If there is delay limitation requirement, turn off auto mode to prevent panel
* from lowering frequency too fast if not seeing new frame.
*/
if (ctx->idle_delay_ms) {
const struct exynos_panel_mode *pmode = ctx->current_mode;
s6e3hc4_update_refresh_mode(ctx, pmode, 0);
} else if (spanel->force_changeable_te) {
dev_dbg(ctx->dev, "sending early exit out cmd\n");
EXYNOS_DCS_BUF_ADD_SET(ctx, unlock_cmd_f0);
EXYNOS_DCS_BUF_ADD_SET(ctx, freq_update);
EXYNOS_DCS_BUF_ADD_SET_AND_FLUSH(ctx, lock_cmd_f0);
}
DPU_ATRACE_END(__func__);
}
static void s6e3hc4_commit_done(struct exynos_panel *ctx)
{
if (!ctx->current_mode)
return;
s6e3hc4_update_idle_state(ctx);
}
static void s6e3hc4_set_hbm_mode(struct exynos_panel *ctx,
enum exynos_hbm_mode mode)
{
struct s6e3hc4_panel *spanel = to_spanel(ctx);
const struct exynos_panel_mode *pmode = ctx->current_mode;
if (mode == ctx->hbm_mode)
return;
if (unlikely(!pmode))
return;
ctx->hbm_mode = mode;
if (IS_HBM_ON(mode)) {
set_bit(FEAT_HBM, spanel->feat);
/* b/202738999 enforce IRC on */
#ifndef DPU_FACTORY_BUILD
if (mode == HBM_ON_IRC_ON)
clear_bit(FEAT_IRC_OFF, spanel->feat);
else
set_bit(FEAT_IRC_OFF, spanel->feat);
#endif
s6e3hc4_update_panel_feat(ctx, NULL, false);
s6e3hc4_write_display_mode(ctx, &pmode->mode);
} else {
clear_bit(FEAT_HBM, spanel->feat);
clear_bit(FEAT_IRC_OFF, spanel->feat);
s6e3hc4_write_display_mode(ctx, &pmode->mode);
s6e3hc4_update_panel_feat(ctx, NULL, false);
}
}
static void s6e3hc4_set_dimming_on(struct exynos_panel *ctx,
bool dimming_on)
{
const struct exynos_panel_mode *pmode = ctx->current_mode;
ctx->dimming_on = dimming_on;
if (pmode->exynos_mode.is_lp_mode) {
dev_info(ctx->dev,"in lp mode, skip to update");
return;
}
s6e3hc4_write_display_mode(ctx, &pmode->mode);
}
static const struct exynos_dsi_cmd s6e3hc4_lhbm_extra_cmds[] = {
EXYNOS_DSI_CMD0(unlock_cmd_f0),
/* global para */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x02, 0x1E, 0x92),
/* area set */
EXYNOS_DSI_CMD_SEQ(0x92, 0x20, 0x88, 0x71, 0x39, 0x8A, 0x01),
/* global para */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x02, 0x24, 0x92),
/* center position set, x: 0x2D0, y: 0x939 */
EXYNOS_DSI_CMD_SEQ(0x92, 0x2D, 0x09, 0x39),
/* global para */
EXYNOS_DSI_CMD_SEQ(0xB0, 0x02, 0x27, 0x92),
/* circle size set, radius: 6 mm */
EXYNOS_DSI_CMD_SEQ(0x92, 0x78),
EXYNOS_DSI_CMD0(lock_cmd_f0)
};
static DEFINE_EXYNOS_CMD_SET(s6e3hc4_lhbm_extra);
static void s6e3hc4_set_local_hbm_mode(struct exynos_panel *ctx,
bool local_hbm_en)
{
const struct exynos_panel_mode *pmode;
const u32 flags = PANEL_CMD_SET_IGNORE_VBLANK | PANEL_CMD_SET_BATCH;
if (ctx->hbm.local_hbm.enabled == local_hbm_en)
return;
pmode = ctx->current_mode;
if (unlikely(pmode == NULL)) {
dev_err(ctx->dev, "%s: unknown current mode\n", __func__);
return;
}
if (local_hbm_en) {
const int vrefresh = drm_mode_vrefresh(&pmode->mode);
/* Add check to turn on LHBM @ 120hz only to comply with HW requirement */
if (vrefresh != 120) {
dev_err(ctx->dev, "unexpected mode `%s` while enabling LHBM, give up\n",
pmode->mode.name);
return;
}
}
ctx->hbm.local_hbm.enabled = local_hbm_en;
if (local_hbm_en)
exynos_panel_send_cmd_set_flags(ctx,
&s6e3hc4_lhbm_extra_cmd_set, flags);
s6e3hc4_write_display_mode(ctx, &pmode->mode);
}
static void s6e3hc4_mode_set(struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode)
{
if (!is_panel_active(ctx))
return;
if (ctx->hbm.local_hbm.enabled == true)
dev_warn(ctx->dev, "do mode change (`%s`) unexpectedly when LHBM is ON\n",
pmode->mode.name);
s6e3hc4_change_frequency(ctx, pmode);
}
static bool s6e3hc4_is_mode_seamless(const struct exynos_panel *ctx,
const struct exynos_panel_mode *pmode)
{
const struct drm_display_mode *c = &ctx->current_mode->mode;
const struct drm_display_mode *n = &pmode->mode;
/* seamless mode set can happen if active region resolution is same */
return (c->vdisplay == n->vdisplay) && (c->hdisplay == n->hdisplay) &&
(c->flags == n->flags);
}
static int s6e3hc4_set_op_hz(struct exynos_panel *ctx, unsigned int hz)
{
struct s6e3hc4_panel *spanel = to_spanel(ctx);
u32 vrefresh = drm_mode_vrefresh(&ctx->current_mode->mode);
if (vrefresh > hz) {
dev_err(ctx->dev, "invalid op_hz=%d for vrefresh=%d\n",
hz, vrefresh);
return -EINVAL;
}
ctx->op_hz = hz;
if (hz == 60)
set_bit(FEAT_OP_NS, spanel->feat);
else
clear_bit(FEAT_OP_NS, spanel->feat);
s6e3hc4_update_panel_feat(ctx, NULL, false);
dev_info(ctx->dev, "set op_hz at %d\n", hz);
return 0;
}
static int s6e3hc4_read_id(struct exynos_panel *ctx)
{
if (ctx->panel_rev < PANEL_REV_DVT1)
return exynos_panel_read_id(ctx);
return exynos_panel_read_ddic_id(ctx);
}
static void s6e3hc4_get_panel_rev(struct exynos_panel *ctx, u32 id)
{
/* extract command 0xDB */
u8 build_code = (id & 0xFF00) >> 8;
u8 rev = ((build_code & 0xE0) >> 3) | ((build_code & 0x0C) >> 2);
exynos_panel_get_panel_rev(ctx, rev);
}
static const struct exynos_display_underrun_param underrun_param = {
.te_idle_us = 350,
.te_var = 1,
};
static const u32 s6e3hc4_bl_range[] = {
94, 180, 270, 360, 2047
};
static const struct exynos_panel_mode s6e3hc4_modes[] = {
{
/* 1440x3120 @ 60Hz */
.mode = {
.name = "1440x3120x60",
.clock = 298620,
.hdisplay = 1440,
.hsync_start = 1440 + 80, // add hfp
.hsync_end = 1440 + 80 + 24, // add hsa
.htotal = 1440 + 80 + 24 + 36, // add hbp
.vdisplay = 3120,
.vsync_start = 3120 + 12, // add vfp
.vsync_end = 3120 + 12 + 4, // add vsa
.vtotal = 3120 + 12 + 4 + 14, // add vbp
.flags = 0,
.type = DRM_MODE_TYPE_PREFERRED,
.width_mm = 71,
.height_mm = 155,
},
.exynos_mode = {
.mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS,
.vblank_usec = 120,
.bpc = 8,
.dsc = {
.enabled = true,
.dsc_count = 2,
.slice_count = 2,
.slice_height = 52,
},
.underrun_param = &underrun_param,
},
.te2_timing = {
.rising_edge = S6E3HC4_TE2_RISING_EDGE_OFFSET,
.falling_edge = S6E3HC4_TE2_FALLING_EDGE_OFFSET,
},
.idle_mode = IDLE_MODE_ON_SELF_REFRESH,
},
{
/* 1440x3120 @ 120Hz */
.mode = {
.name = "1440x3120x120",
.clock = 597240,
.hdisplay = 1440,
.hsync_start = 1440 + 80, // add hfp
.hsync_end = 1440 + 80 + 24, // add hsa
.htotal = 1440 + 80 + 24 + 36, // add hbp
.vdisplay = 3120,
.vsync_start = 3120 + 12, // add vfp
.vsync_end = 3120 + 12 + 4, // add vsa
.vtotal = 3120 + 12 + 4 + 14, // add vbp
.flags = 0,
.width_mm = 71,
.height_mm = 155,
},
.exynos_mode = {
.mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS,
.vblank_usec = 120,
.te_usec = 150,
.bpc = 8,
.dsc = {
.enabled = true,
.dsc_count = 2,
.slice_count = 2,
.slice_height = 52,
},
.underrun_param = &underrun_param,
},
.te2_timing = {
.rising_edge = S6E3HC4_TE2_RISING_EDGE_OFFSET,
.falling_edge = S6E3HC4_TE2_FALLING_EDGE_OFFSET,
},
.idle_mode = IDLE_MODE_ON_INACTIVITY,
},
{
/* 1080x2340 @ 60Hz */
.mode = {
.name = "1080x2340x60",
.clock = 173484,
.hdisplay = 1080,
.hsync_start = 1080 + 80, // add hfp
.hsync_end = 1080 + 80 + 24, // add hsa
.htotal = 1080 + 80 + 24 + 36, // add hbp
.vdisplay = 2340,
.vsync_start = 2340 + 12, // add vfp
.vsync_end = 2340 + 12 + 4, // add vsa
.vtotal = 2340 + 12 + 4 + 14, // add vbp
.flags = 0,
.width_mm = 71,
.height_mm = 155,
},
.exynos_mode = {
.mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS,
.vblank_usec = 120,
.bpc = 8,
.dsc = {
.enabled = true,
.dsc_count = 2,
.slice_count = 2,
.slice_height = 78,
},
.underrun_param = &underrun_param,
},
.te2_timing = {
.rising_edge = S6E3HC4_TE2_RISING_EDGE_OFFSET,
.falling_edge = S6E3HC4_TE2_FALLING_EDGE_OFFSET,
},
.idle_mode = IDLE_MODE_ON_SELF_REFRESH,
},
{
/* 1080x2340 @ 120Hz */
.mode = {
.name = "1080x2340x120",
.clock = 346968,
.hdisplay = 1080,
.hsync_start = 1080 + 80, // add hfp
.hsync_end = 1080 + 80 + 24, // add hsa
.htotal = 1080 + 80 + 24 + 36, // add hbp
.vdisplay = 2340,
.vsync_start = 2340 + 12, // add vfp
.vsync_end = 2340 + 12 + 4, // add vsa
.vtotal = 2340 + 12 + 4 + 14, // add vbp
.flags = 0,
.width_mm = 71,
.height_mm = 155,
},
.exynos_mode = {
.mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS,
.vblank_usec = 120,
.te_usec = 150,
.bpc = 8,
.dsc = {
.enabled = true,
.dsc_count = 2,
.slice_count = 2,
.slice_height = 78,
},
.underrun_param = &underrun_param,
},
.te2_timing = {
.rising_edge = S6E3HC4_TE2_RISING_EDGE_OFFSET,
.falling_edge = S6E3HC4_TE2_FALLING_EDGE_OFFSET,
},
.idle_mode = IDLE_MODE_ON_INACTIVITY,
},
};
static const struct exynos_panel_mode s6e3hc4_lp_modes[] = {
{
.mode = {
/* 1440x3120 @ 30Hz */
.name = "1440x3120x30",
.clock = 149310,
.hdisplay = 1440,
.hsync_start = 1440 + 80, // add hfp
.hsync_end = 1440 + 80 + 24, // add hsa
.htotal = 1440 + 80 + 24 + 36, // add hbp
.vdisplay = 3120,
.vsync_start = 3120 + 12, // add vfp
.vsync_end = 3120 + 12 + 4, // add vsa
.vtotal = 3120 + 12 + 4 + 14, // add vbp
.flags = 0,
.width_mm = 71,
.height_mm = 155,
},
.exynos_mode = {
.mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS,
.vblank_usec = 120,
.te_usec = 25300,
.bpc = 8,
.dsc = {
.enabled = true,
.dsc_count = 2,
.slice_count = 2,
.slice_height = 52,
},
.underrun_param = &underrun_param,
.is_lp_mode = true,
},
},
{
.mode = {
/* 1080x2340 @ 30Hz */
.name = "1080x2340x30",
.clock = 86742,
.hdisplay = 1080,
.hsync_start = 1080 + 80, // add hfp
.hsync_end = 1080 + 80 + 24, // add hsa
.htotal = 1080 + 80 + 24 + 36, // add hbp
.vdisplay = 2340,
.vsync_start = 2340 + 12, // add vfp
.vsync_end = 2340 + 12 + 4, // add vsa
.vtotal = 2340 + 12 + 4 + 14, // add vbp
.flags = 0,
.width_mm = 71,
.height_mm = 155,
},
.exynos_mode = {
.mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS,
.vblank_usec = 120,
.te_usec = 25300,
.bpc = 8,
.dsc = {
.enabled = true,
.dsc_count = 2,
.slice_count = 2,
.slice_height = 78,
},
.underrun_param = &underrun_param,
.is_lp_mode = true,
},
},
};
static void s6e3hc4_panel_init(struct exynos_panel *ctx)
{
struct dentry *csroot = ctx->debugfs_cmdset_entry;
struct s6e3hc4_panel *spanel = to_spanel(ctx);
exynos_panel_debugfs_create_cmdset(ctx, csroot, &s6e3hc4_init_cmd_set, "init");
debugfs_create_bool("force_changeable_te", 0644, ctx->debugfs_entry,
&spanel->force_changeable_te);
}
static int s6e3hc4_panel_probe(struct mipi_dsi_device *dsi)
{
struct s6e3hc4_panel *spanel;
spanel = devm_kzalloc(&dsi->dev, sizeof(*spanel), GFP_KERNEL);
if (!spanel)
return -ENOMEM;
spanel->base.op_hz = 120;
spanel->hw_vrefresh = 60;
return exynos_panel_common_init(dsi, &spanel->base);
}
static const struct drm_panel_funcs s6e3hc4_drm_funcs = {
.disable = s6e3hc4_disable,
.unprepare = exynos_panel_unprepare,
.prepare = exynos_panel_prepare,
.enable = s6e3hc4_enable,
.get_modes = exynos_panel_get_modes,
};
static const struct exynos_panel_funcs s6e3hc4_exynos_funcs = {
.set_brightness = s6e3hc4_set_brightness,
.set_lp_mode = exynos_panel_set_lp_mode,
.set_nolp_mode = s6e3hc4_set_nolp_mode,
.set_binned_lp = exynos_panel_set_binned_lp,
.set_hbm_mode = s6e3hc4_set_hbm_mode,
.set_dimming_on = s6e3hc4_set_dimming_on,
.set_local_hbm_mode = s6e3hc4_set_local_hbm_mode,
.is_mode_seamless = s6e3hc4_is_mode_seamless,
.mode_set = s6e3hc4_mode_set,
.panel_init = s6e3hc4_panel_init,
.get_panel_rev = s6e3hc4_get_panel_rev,
.get_te2_edges = exynos_panel_get_te2_edges,
.configure_te2_edges = exynos_panel_configure_te2_edges,
.update_te2 = s6e3hc4_update_te2,
.commit_done = s6e3hc4_commit_done,
.atomic_check = s6e3hc4_atomic_check,
.set_self_refresh = s6e3hc4_set_self_refresh,
.set_op_hz = s6e3hc4_set_op_hz,
.read_id = s6e3hc4_read_id,
};
const struct brightness_capability s6e3hc4_brightness_capability = {
.normal = {
.nits = {
.min = 2,
.max = 600,
},
.level = {
.min = 4,
.max = 2047,
},
.percentage = {
.min = 0,
.max = 60,
},
},
.hbm = {
.nits = {
.min = 600,
.max = 1000,
},
.level = {
.min = 2457,
.max = 4095,
},
.percentage = {
.min = 60,
.max = 100,
},
},
};
const struct exynos_panel_desc samsung_s6e3hc4 = {
.data_lane_cnt = 4,
.max_brightness = 3949,
.dft_brightness = 1023,
.brt_capability = &s6e3hc4_brightness_capability,
.dbv_extra_frame = true,
/* supported HDR format bitmask : 1(DOLBY_VISION), 2(HDR10), 3(HLG) */
.hdr_formats = BIT(2) | BIT(3),
.max_luminance = 10000000,
.max_avg_luminance = 1200000,
.min_luminance = 5,
.bl_range = s6e3hc4_bl_range,
.bl_num_ranges = ARRAY_SIZE(s6e3hc4_bl_range),
.modes = s6e3hc4_modes,
.num_modes = ARRAY_SIZE(s6e3hc4_modes),
.lp_mode = s6e3hc4_lp_modes,
.lp_mode_count = ARRAY_SIZE(s6e3hc4_lp_modes),
.lp_cmd_set = &s6e3hc4_lp_cmd_set,
.binned_lp = s6e3hc4_binned_lp,
.num_binned_lp = ARRAY_SIZE(s6e3hc4_binned_lp),
.is_panel_idle_supported = true,
.panel_func = &s6e3hc4_drm_funcs,
.exynos_panel_func = &s6e3hc4_exynos_funcs,
};
static const struct of_device_id exynos_panel_of_match[] = {
{ .compatible = "samsung,s6e3hc4", .data = &samsung_s6e3hc4 },
{ }
};
MODULE_DEVICE_TABLE(of, exynos_panel_of_match);
static struct mipi_dsi_driver exynos_panel_driver = {
.probe = s6e3hc4_panel_probe,
.remove = exynos_panel_remove,
.driver = {
.name = "panel-samsung-s6e3hc4",
.of_match_table = exynos_panel_of_match,
},
};
module_mipi_dsi_driver(exynos_panel_driver);
MODULE_AUTHOR("Shiyong Li<shiyongli@google.com>");
MODULE_DESCRIPTION("MIPI-DSI based Samsung s6e3hc4 panel driver");
MODULE_LICENSE("GPL");