656 lines
15 KiB
C
656 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2018, The Linux Foundation. All rights reserved.
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*/
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#include <linux/backlight.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/of_graph.h>
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#include <linux/pinctrl/consumer.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_panel.h>
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static const char * const regulator_names[] = {
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"vdda",
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"vdispp",
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"vdispn",
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};
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static unsigned long const regulator_enable_loads[] = {
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62000,
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100000,
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100000,
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};
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static unsigned long const regulator_disable_loads[] = {
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80,
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100,
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100,
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};
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struct cmd_set {
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u8 commands[4];
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u8 size;
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};
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struct nt35597_config {
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u32 width_mm;
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u32 height_mm;
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const char *panel_name;
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const struct cmd_set *panel_on_cmds;
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u32 num_on_cmds;
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const struct drm_display_mode *dm;
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};
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struct truly_nt35597 {
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struct device *dev;
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struct drm_panel panel;
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struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)];
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struct gpio_desc *reset_gpio;
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struct gpio_desc *mode_gpio;
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struct backlight_device *backlight;
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struct mipi_dsi_device *dsi[2];
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const struct nt35597_config *config;
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bool prepared;
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bool enabled;
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};
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static inline struct truly_nt35597 *panel_to_ctx(struct drm_panel *panel)
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{
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return container_of(panel, struct truly_nt35597, panel);
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}
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static const struct cmd_set qcom_2k_panel_magic_cmds[] = {
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/* CMD2_P0 */
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{ { 0xff, 0x20 }, 2 },
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{ { 0xfb, 0x01 }, 2 },
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{ { 0x00, 0x01 }, 2 },
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{ { 0x01, 0x55 }, 2 },
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{ { 0x02, 0x45 }, 2 },
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{ { 0x05, 0x40 }, 2 },
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{ { 0x06, 0x19 }, 2 },
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{ { 0x07, 0x1e }, 2 },
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{ { 0x0b, 0x73 }, 2 },
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{ { 0x0c, 0x73 }, 2 },
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{ { 0x0e, 0xb0 }, 2 },
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{ { 0x0f, 0xae }, 2 },
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{ { 0x11, 0xb8 }, 2 },
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{ { 0x13, 0x00 }, 2 },
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{ { 0x58, 0x80 }, 2 },
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{ { 0x59, 0x01 }, 2 },
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{ { 0x5a, 0x00 }, 2 },
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{ { 0x5b, 0x01 }, 2 },
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{ { 0x5c, 0x80 }, 2 },
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{ { 0x5d, 0x81 }, 2 },
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{ { 0x5e, 0x00 }, 2 },
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{ { 0x5f, 0x01 }, 2 },
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{ { 0x72, 0x11 }, 2 },
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{ { 0x68, 0x03 }, 2 },
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/* CMD2_P4 */
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{ { 0xFF, 0x24 }, 2 },
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{ { 0xFB, 0x01 }, 2 },
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{ { 0x00, 0x1C }, 2 },
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{ { 0x01, 0x0B }, 2 },
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{ { 0x02, 0x0C }, 2 },
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{ { 0x03, 0x01 }, 2 },
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{ { 0x04, 0x0F }, 2 },
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{ { 0x05, 0x10 }, 2 },
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{ { 0x06, 0x10 }, 2 },
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{ { 0x07, 0x10 }, 2 },
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{ { 0x08, 0x89 }, 2 },
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{ { 0x09, 0x8A }, 2 },
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{ { 0x0A, 0x13 }, 2 },
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{ { 0x0B, 0x13 }, 2 },
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{ { 0x0C, 0x15 }, 2 },
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{ { 0x0D, 0x15 }, 2 },
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{ { 0x0E, 0x17 }, 2 },
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{ { 0x0F, 0x17 }, 2 },
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{ { 0x10, 0x1C }, 2 },
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{ { 0x11, 0x0B }, 2 },
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{ { 0x12, 0x0C }, 2 },
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{ { 0x13, 0x01 }, 2 },
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{ { 0x14, 0x0F }, 2 },
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{ { 0x15, 0x10 }, 2 },
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{ { 0x16, 0x10 }, 2 },
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{ { 0x17, 0x10 }, 2 },
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{ { 0x18, 0x89 }, 2 },
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{ { 0x19, 0x8A }, 2 },
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{ { 0x1A, 0x13 }, 2 },
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{ { 0x1B, 0x13 }, 2 },
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{ { 0x1C, 0x15 }, 2 },
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{ { 0x1D, 0x15 }, 2 },
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{ { 0x1E, 0x17 }, 2 },
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{ { 0x1F, 0x17 }, 2 },
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/* STV */
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{ { 0x20, 0x40 }, 2 },
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{ { 0x21, 0x01 }, 2 },
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{ { 0x22, 0x00 }, 2 },
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{ { 0x23, 0x40 }, 2 },
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{ { 0x24, 0x40 }, 2 },
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{ { 0x25, 0x6D }, 2 },
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{ { 0x26, 0x40 }, 2 },
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{ { 0x27, 0x40 }, 2 },
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/* Vend */
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{ { 0xE0, 0x00 }, 2 },
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{ { 0xDC, 0x21 }, 2 },
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{ { 0xDD, 0x22 }, 2 },
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{ { 0xDE, 0x07 }, 2 },
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{ { 0xDF, 0x07 }, 2 },
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{ { 0xE3, 0x6D }, 2 },
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{ { 0xE1, 0x07 }, 2 },
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{ { 0xE2, 0x07 }, 2 },
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/* UD */
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{ { 0x29, 0xD8 }, 2 },
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{ { 0x2A, 0x2A }, 2 },
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/* CLK */
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{ { 0x4B, 0x03 }, 2 },
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{ { 0x4C, 0x11 }, 2 },
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{ { 0x4D, 0x10 }, 2 },
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{ { 0x4E, 0x01 }, 2 },
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{ { 0x4F, 0x01 }, 2 },
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{ { 0x50, 0x10 }, 2 },
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{ { 0x51, 0x00 }, 2 },
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{ { 0x52, 0x80 }, 2 },
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{ { 0x53, 0x00 }, 2 },
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{ { 0x56, 0x00 }, 2 },
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{ { 0x54, 0x07 }, 2 },
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{ { 0x58, 0x07 }, 2 },
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{ { 0x55, 0x25 }, 2 },
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/* Reset XDONB */
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{ { 0x5B, 0x43 }, 2 },
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{ { 0x5C, 0x00 }, 2 },
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{ { 0x5F, 0x73 }, 2 },
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{ { 0x60, 0x73 }, 2 },
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{ { 0x63, 0x22 }, 2 },
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{ { 0x64, 0x00 }, 2 },
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{ { 0x67, 0x08 }, 2 },
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{ { 0x68, 0x04 }, 2 },
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/* Resolution:1440x2560 */
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{ { 0x72, 0x02 }, 2 },
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/* mux */
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{ { 0x7A, 0x80 }, 2 },
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{ { 0x7B, 0x91 }, 2 },
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{ { 0x7C, 0xD8 }, 2 },
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{ { 0x7D, 0x60 }, 2 },
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{ { 0x7F, 0x15 }, 2 },
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{ { 0x75, 0x15 }, 2 },
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/* ABOFF */
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{ { 0xB3, 0xC0 }, 2 },
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{ { 0xB4, 0x00 }, 2 },
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{ { 0xB5, 0x00 }, 2 },
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/* Source EQ */
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{ { 0x78, 0x00 }, 2 },
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{ { 0x79, 0x00 }, 2 },
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{ { 0x80, 0x00 }, 2 },
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{ { 0x83, 0x00 }, 2 },
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/* FP BP */
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{ { 0x93, 0x0A }, 2 },
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{ { 0x94, 0x0A }, 2 },
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/* Inversion Type */
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{ { 0x8A, 0x00 }, 2 },
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{ { 0x9B, 0xFF }, 2 },
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/* IMGSWAP =1 @PortSwap=1 */
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{ { 0x9D, 0xB0 }, 2 },
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{ { 0x9F, 0x63 }, 2 },
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{ { 0x98, 0x10 }, 2 },
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/* FRM */
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{ { 0xEC, 0x00 }, 2 },
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/* CMD1 */
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{ { 0xFF, 0x10 }, 2 },
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/* VBP+VSA=,VFP = 10H */
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{ { 0x3B, 0x03, 0x0A, 0x0A }, 4 },
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/* FTE on */
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{ { 0x35, 0x00 }, 2 },
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/* EN_BK =1(auto black) */
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{ { 0xE5, 0x01 }, 2 },
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/* CMD mode(10) VDO mode(03) */
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{ { 0xBB, 0x03 }, 2 },
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/* Non Reload MTP */
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{ { 0xFB, 0x01 }, 2 },
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};
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static int truly_dcs_write(struct drm_panel *panel, u32 command)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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int i, ret;
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for (i = 0; i < ARRAY_SIZE(ctx->dsi); i++) {
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ret = mipi_dsi_dcs_write(ctx->dsi[i], command, NULL, 0);
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if (ret < 0) {
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dev_err(ctx->dev, "cmd 0x%x failed for dsi = %d\n", command, i);
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}
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}
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return ret;
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}
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static int truly_dcs_write_buf(struct drm_panel *panel,
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u32 size, const u8 *buf)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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int ret = 0;
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int i;
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for (i = 0; i < ARRAY_SIZE(ctx->dsi); i++) {
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ret = mipi_dsi_dcs_write_buffer(ctx->dsi[i], buf, size);
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if (ret < 0) {
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dev_err(ctx->dev, "failed to tx cmd [%d], err: %d\n", i, ret);
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return ret;
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}
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}
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return ret;
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}
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static int truly_35597_power_on(struct truly_nt35597 *ctx)
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{
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int ret, i;
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for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
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ret = regulator_set_load(ctx->supplies[i].consumer,
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regulator_enable_loads[i]);
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if (ret)
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return ret;
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}
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ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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if (ret < 0)
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return ret;
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/*
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* Reset sequence of truly panel requires the panel to be
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* out of reset for 10ms, followed by being held in reset
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* for 10ms and then out again
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*/
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gpiod_set_value(ctx->reset_gpio, 0);
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usleep_range(10000, 20000);
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gpiod_set_value(ctx->reset_gpio, 1);
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usleep_range(10000, 20000);
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gpiod_set_value(ctx->reset_gpio, 0);
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usleep_range(10000, 20000);
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return 0;
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}
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static int truly_nt35597_power_off(struct truly_nt35597 *ctx)
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{
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int ret = 0;
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int i;
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gpiod_set_value(ctx->reset_gpio, 1);
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for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
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ret = regulator_set_load(ctx->supplies[i].consumer,
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regulator_disable_loads[i]);
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if (ret) {
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dev_err(ctx->dev, "regulator_set_load failed %d\n", ret);
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return ret;
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}
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}
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ret = regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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if (ret) {
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dev_err(ctx->dev, "regulator_bulk_disable failed %d\n", ret);
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}
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return ret;
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}
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static int truly_nt35597_disable(struct drm_panel *panel)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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int ret;
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if (!ctx->enabled)
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return 0;
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if (ctx->backlight) {
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ret = backlight_disable(ctx->backlight);
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if (ret < 0)
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dev_err(ctx->dev, "backlight disable failed %d\n", ret);
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}
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ctx->enabled = false;
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return 0;
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}
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static int truly_nt35597_unprepare(struct drm_panel *panel)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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int ret = 0;
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if (!ctx->prepared)
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return 0;
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ctx->dsi[0]->mode_flags = 0;
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ctx->dsi[1]->mode_flags = 0;
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ret = truly_dcs_write(panel, MIPI_DCS_SET_DISPLAY_OFF);
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if (ret < 0) {
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dev_err(ctx->dev, "set_display_off cmd failed ret = %d\n", ret);
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}
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/* 120ms delay required here as per DCS spec */
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msleep(120);
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ret = truly_dcs_write(panel, MIPI_DCS_ENTER_SLEEP_MODE);
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if (ret < 0) {
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dev_err(ctx->dev, "enter_sleep cmd failed ret = %d\n", ret);
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}
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ret = truly_nt35597_power_off(ctx);
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if (ret < 0)
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dev_err(ctx->dev, "power_off failed ret = %d\n", ret);
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ctx->prepared = false;
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return ret;
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}
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static int truly_nt35597_prepare(struct drm_panel *panel)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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int ret;
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int i;
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const struct cmd_set *panel_on_cmds;
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const struct nt35597_config *config;
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u32 num_cmds;
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if (ctx->prepared)
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return 0;
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ret = truly_35597_power_on(ctx);
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if (ret < 0)
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return ret;
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ctx->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM;
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ctx->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
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config = ctx->config;
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panel_on_cmds = config->panel_on_cmds;
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num_cmds = config->num_on_cmds;
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for (i = 0; i < num_cmds; i++) {
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ret = truly_dcs_write_buf(panel,
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panel_on_cmds[i].size,
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panel_on_cmds[i].commands);
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if (ret < 0) {
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dev_err(ctx->dev, "cmd set tx failed i = %d ret = %d\n", i, ret);
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goto power_off;
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}
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}
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ret = truly_dcs_write(panel, MIPI_DCS_EXIT_SLEEP_MODE);
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if (ret < 0) {
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dev_err(ctx->dev, "exit_sleep_mode cmd failed ret = %d\n", ret);
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goto power_off;
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}
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/* Per DSI spec wait 120ms after sending exit sleep DCS command */
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msleep(120);
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ret = truly_dcs_write(panel, MIPI_DCS_SET_DISPLAY_ON);
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if (ret < 0) {
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dev_err(ctx->dev, "set_display_on cmd failed ret = %d\n", ret);
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goto power_off;
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}
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/* Per DSI spec wait 120ms after sending set_display_on DCS command */
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msleep(120);
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ctx->prepared = true;
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return 0;
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power_off:
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if (truly_nt35597_power_off(ctx))
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dev_err(ctx->dev, "power_off failed\n");
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return ret;
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}
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static int truly_nt35597_enable(struct drm_panel *panel)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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int ret;
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if (ctx->enabled)
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return 0;
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if (ctx->backlight) {
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ret = backlight_enable(ctx->backlight);
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if (ret < 0)
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dev_err(ctx->dev, "backlight enable failed %d\n", ret);
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}
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ctx->enabled = true;
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return 0;
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}
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static int truly_nt35597_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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struct truly_nt35597 *ctx = panel_to_ctx(panel);
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struct drm_display_mode *mode;
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const struct nt35597_config *config;
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config = ctx->config;
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mode = drm_mode_create(connector->dev);
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if (!mode) {
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dev_err(ctx->dev, "failed to create a new display mode\n");
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return 0;
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}
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connector->display_info.width_mm = config->width_mm;
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connector->display_info.height_mm = config->height_mm;
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drm_mode_copy(mode, config->dm);
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mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
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drm_mode_probed_add(connector, mode);
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return 1;
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}
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static const struct drm_panel_funcs truly_nt35597_drm_funcs = {
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.disable = truly_nt35597_disable,
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.unprepare = truly_nt35597_unprepare,
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.prepare = truly_nt35597_prepare,
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.enable = truly_nt35597_enable,
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.get_modes = truly_nt35597_get_modes,
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};
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static int truly_nt35597_panel_add(struct truly_nt35597 *ctx)
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{
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struct device *dev = ctx->dev;
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int ret, i;
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for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++)
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ctx->supplies[i].supply = regulator_names[i];
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ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
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ctx->supplies);
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if (ret < 0)
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return ret;
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ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
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if (IS_ERR(ctx->reset_gpio)) {
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dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio));
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return PTR_ERR(ctx->reset_gpio);
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}
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ctx->mode_gpio = devm_gpiod_get(dev, "mode", GPIOD_OUT_LOW);
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if (IS_ERR(ctx->mode_gpio)) {
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dev_err(dev, "cannot get mode gpio %ld\n", PTR_ERR(ctx->mode_gpio));
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return PTR_ERR(ctx->mode_gpio);
|
|
}
|
|
|
|
/* dual port */
|
|
gpiod_set_value(ctx->mode_gpio, 0);
|
|
|
|
drm_panel_init(&ctx->panel, dev, &truly_nt35597_drm_funcs,
|
|
DRM_MODE_CONNECTOR_DSI);
|
|
drm_panel_add(&ctx->panel);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_display_mode qcom_sdm845_mtp_2k_mode = {
|
|
.name = "1440x2560",
|
|
.clock = 268316,
|
|
.hdisplay = 1440,
|
|
.hsync_start = 1440 + 200,
|
|
.hsync_end = 1440 + 200 + 32,
|
|
.htotal = 1440 + 200 + 32 + 64,
|
|
.vdisplay = 2560,
|
|
.vsync_start = 2560 + 8,
|
|
.vsync_end = 2560 + 8 + 1,
|
|
.vtotal = 2560 + 8 + 1 + 7,
|
|
.flags = 0,
|
|
};
|
|
|
|
static const struct nt35597_config nt35597_dir = {
|
|
.width_mm = 74,
|
|
.height_mm = 131,
|
|
.panel_name = "qcom_sdm845_mtp_2k_panel",
|
|
.dm = &qcom_sdm845_mtp_2k_mode,
|
|
.panel_on_cmds = qcom_2k_panel_magic_cmds,
|
|
.num_on_cmds = ARRAY_SIZE(qcom_2k_panel_magic_cmds),
|
|
};
|
|
|
|
static int truly_nt35597_probe(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct device *dev = &dsi->dev;
|
|
struct truly_nt35597 *ctx;
|
|
struct mipi_dsi_device *dsi1_device;
|
|
struct device_node *dsi1;
|
|
struct mipi_dsi_host *dsi1_host;
|
|
struct mipi_dsi_device *dsi_dev;
|
|
int ret = 0;
|
|
int i;
|
|
|
|
const struct mipi_dsi_device_info info = {
|
|
.type = "trulynt35597",
|
|
.channel = 0,
|
|
.node = NULL,
|
|
};
|
|
|
|
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
|
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* This device represents itself as one with two input ports which are
|
|
* fed by the output ports of the two DSI controllers . The DSI0 is
|
|
* the master controller and has most of the panel related info in its
|
|
* child node.
|
|
*/
|
|
|
|
ctx->config = of_device_get_match_data(dev);
|
|
|
|
if (!ctx->config) {
|
|
dev_err(dev, "missing device configuration\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dsi1 = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);
|
|
if (!dsi1) {
|
|
dev_err(dev, "failed to get remote node for dsi1_device\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dsi1_host = of_find_mipi_dsi_host_by_node(dsi1);
|
|
of_node_put(dsi1);
|
|
if (!dsi1_host) {
|
|
dev_err(dev, "failed to find dsi host\n");
|
|
return -EPROBE_DEFER;
|
|
}
|
|
|
|
/* register the second DSI device */
|
|
dsi1_device = mipi_dsi_device_register_full(dsi1_host, &info);
|
|
if (IS_ERR(dsi1_device)) {
|
|
dev_err(dev, "failed to create dsi device\n");
|
|
return PTR_ERR(dsi1_device);
|
|
}
|
|
|
|
mipi_dsi_set_drvdata(dsi, ctx);
|
|
|
|
ctx->dev = dev;
|
|
ctx->dsi[0] = dsi;
|
|
ctx->dsi[1] = dsi1_device;
|
|
|
|
ret = truly_nt35597_panel_add(ctx);
|
|
if (ret) {
|
|
dev_err(dev, "failed to add panel\n");
|
|
goto err_panel_add;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ctx->dsi); i++) {
|
|
dsi_dev = ctx->dsi[i];
|
|
dsi_dev->lanes = 4;
|
|
dsi_dev->format = MIPI_DSI_FMT_RGB888;
|
|
dsi_dev->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |
|
|
MIPI_DSI_CLOCK_NON_CONTINUOUS;
|
|
ret = mipi_dsi_attach(dsi_dev);
|
|
if (ret < 0) {
|
|
dev_err(dev, "dsi attach failed i = %d\n", i);
|
|
goto err_dsi_attach;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_dsi_attach:
|
|
drm_panel_remove(&ctx->panel);
|
|
err_panel_add:
|
|
mipi_dsi_device_unregister(dsi1_device);
|
|
return ret;
|
|
}
|
|
|
|
static int truly_nt35597_remove(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct truly_nt35597 *ctx = mipi_dsi_get_drvdata(dsi);
|
|
|
|
if (ctx->dsi[0])
|
|
mipi_dsi_detach(ctx->dsi[0]);
|
|
if (ctx->dsi[1]) {
|
|
mipi_dsi_detach(ctx->dsi[1]);
|
|
mipi_dsi_device_unregister(ctx->dsi[1]);
|
|
}
|
|
|
|
drm_panel_remove(&ctx->panel);
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id truly_nt35597_of_match[] = {
|
|
{
|
|
.compatible = "truly,nt35597-2K-display",
|
|
.data = &nt35597_dir,
|
|
},
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, truly_nt35597_of_match);
|
|
|
|
static struct mipi_dsi_driver truly_nt35597_driver = {
|
|
.driver = {
|
|
.name = "panel-truly-nt35597",
|
|
.of_match_table = truly_nt35597_of_match,
|
|
},
|
|
.probe = truly_nt35597_probe,
|
|
.remove = truly_nt35597_remove,
|
|
};
|
|
module_mipi_dsi_driver(truly_nt35597_driver);
|
|
|
|
MODULE_DESCRIPTION("Truly NT35597 DSI Panel Driver");
|
|
MODULE_LICENSE("GPL v2");
|