871 lines
16 KiB
C
871 lines
16 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*/
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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.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_crtc.h>
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#include <drm/drm_device.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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struct khadas_ts050_panel {
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struct drm_panel base;
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struct mipi_dsi_device *link;
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struct regulator *supply;
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struct gpio_desc *reset_gpio;
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struct gpio_desc *enable_gpio;
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bool prepared;
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bool enabled;
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};
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struct khadas_ts050_panel_cmd {
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u8 cmd;
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u8 data;
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};
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/* Only the CMD1 User Command set is documented */
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static const struct khadas_ts050_panel_cmd init_code[] = {
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/* Select Unknown CMD Page (Undocumented) */
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{0xff, 0xee},
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/* Reload CMD1: Don't reload default value to register */
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{0xfb, 0x01},
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{0x1f, 0x45},
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{0x24, 0x4f},
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{0x38, 0xc8},
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{0x39, 0x27},
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{0x1e, 0x77},
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{0x1d, 0x0f},
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{0x7e, 0x71},
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{0x7c, 0x03},
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{0xff, 0x00},
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{0xfb, 0x01},
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{0x35, 0x01},
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/* Select CMD2 Page0 (Undocumented) */
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{0xff, 0x01},
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/* Reload CMD1: Don't reload default value to register */
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{0xfb, 0x01},
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{0x00, 0x01},
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{0x01, 0x55},
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{0x02, 0x40},
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{0x05, 0x40},
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{0x06, 0x4a},
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{0x07, 0x24},
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{0x08, 0x0c},
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{0x0b, 0x7d},
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{0x0c, 0x7d},
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{0x0e, 0xb0},
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{0x0f, 0xae},
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{0x11, 0x10},
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{0x12, 0x10},
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{0x13, 0x03},
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{0x14, 0x4a},
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{0x15, 0x12},
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{0x16, 0x12},
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{0x18, 0x00},
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{0x19, 0x77},
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{0x1a, 0x55},
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{0x1b, 0x13},
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{0x1c, 0x00},
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{0x1d, 0x00},
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{0x1e, 0x13},
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{0x1f, 0x00},
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{0x23, 0x00},
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{0x24, 0x00},
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{0x25, 0x00},
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{0x26, 0x00},
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{0x27, 0x00},
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{0x28, 0x00},
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{0x35, 0x00},
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{0x66, 0x00},
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{0x58, 0x82},
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{0x59, 0x02},
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{0x5a, 0x02},
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{0x5b, 0x02},
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{0x5c, 0x82},
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{0x5d, 0x82},
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{0x5e, 0x02},
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{0x5f, 0x02},
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{0x72, 0x31},
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/* Select CMD2 Page4 (Undocumented) */
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{0xff, 0x05},
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/* Reload CMD1: Don't reload default value to register */
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{0xfb, 0x01},
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{0x00, 0x01},
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{0x01, 0x0b},
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{0x02, 0x0c},
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{0x03, 0x09},
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{0x04, 0x0a},
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{0x05, 0x00},
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{0x06, 0x0f},
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{0x07, 0x10},
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{0x08, 0x00},
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{0x09, 0x00},
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{0x0a, 0x00},
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{0x0b, 0x00},
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{0x0c, 0x00},
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{0x0d, 0x13},
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{0x0e, 0x15},
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{0x0f, 0x17},
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{0x10, 0x01},
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{0x11, 0x0b},
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{0x12, 0x0c},
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{0x13, 0x09},
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{0x14, 0x0a},
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{0x15, 0x00},
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{0x16, 0x0f},
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{0x17, 0x10},
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{0x18, 0x00},
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{0x19, 0x00},
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{0x1a, 0x00},
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{0x1b, 0x00},
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{0x1c, 0x00},
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{0x1d, 0x13},
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{0x1e, 0x15},
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{0x1f, 0x17},
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{0x20, 0x00},
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{0x21, 0x03},
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{0x22, 0x01},
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{0x23, 0x40},
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{0x24, 0x40},
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{0x25, 0xed},
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{0x29, 0x58},
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{0x2a, 0x12},
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{0x2b, 0x01},
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{0x4b, 0x06},
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{0x4c, 0x11},
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{0x4d, 0x20},
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{0x4e, 0x02},
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{0x4f, 0x02},
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{0x50, 0x20},
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{0x51, 0x61},
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{0x52, 0x01},
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{0x53, 0x63},
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{0x54, 0x77},
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{0x55, 0xed},
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{0x5b, 0x00},
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{0x5c, 0x00},
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{0x5d, 0x00},
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{0x5e, 0x00},
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{0x5f, 0x15},
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{0x60, 0x75},
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{0x61, 0x00},
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{0x62, 0x00},
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{0x63, 0x00},
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{0x64, 0x00},
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{0x65, 0x00},
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{0x66, 0x00},
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{0x67, 0x00},
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{0x68, 0x04},
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{0x69, 0x00},
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{0x6a, 0x00},
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{0x6c, 0x40},
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{0x75, 0x01},
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{0x76, 0x01},
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{0x7a, 0x80},
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{0x7b, 0xa3},
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{0x7c, 0xd8},
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{0x7d, 0x60},
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{0x7f, 0x15},
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{0x80, 0x81},
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{0x83, 0x05},
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{0x93, 0x08},
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{0x94, 0x10},
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{0x8a, 0x00},
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{0x9b, 0x0f},
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{0xea, 0xff},
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{0xec, 0x00},
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/* Select CMD2 Page0 (Undocumented) */
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{0xff, 0x01},
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/* Reload CMD1: Don't reload default value to register */
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{0xfb, 0x01},
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{0x75, 0x00},
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{0x76, 0xdf},
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{0x77, 0x00},
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{0x78, 0xe4},
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{0x79, 0x00},
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{0x7a, 0xed},
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{0x7b, 0x00},
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{0x7c, 0xf6},
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{0x7d, 0x00},
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{0x7e, 0xff},
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{0x7f, 0x01},
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{0x80, 0x07},
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{0x81, 0x01},
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{0x82, 0x10},
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{0x83, 0x01},
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{0x84, 0x18},
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{0x85, 0x01},
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{0x86, 0x20},
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{0x87, 0x01},
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{0x88, 0x3d},
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{0x89, 0x01},
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{0x8a, 0x56},
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{0x8b, 0x01},
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{0x8c, 0x84},
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{0x8d, 0x01},
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{0x8e, 0xab},
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{0x8f, 0x01},
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{0x90, 0xec},
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{0x91, 0x02},
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{0x92, 0x22},
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{0x93, 0x02},
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{0x94, 0x23},
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{0x95, 0x02},
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{0x96, 0x55},
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{0x97, 0x02},
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{0x98, 0x8b},
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{0x99, 0x02},
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{0x9a, 0xaf},
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{0x9b, 0x02},
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{0x9c, 0xdf},
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{0x9d, 0x03},
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{0x9e, 0x01},
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{0x9f, 0x03},
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{0xa0, 0x2c},
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{0xa2, 0x03},
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{0xa3, 0x39},
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{0xa4, 0x03},
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{0xa5, 0x47},
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{0xa6, 0x03},
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{0xa7, 0x56},
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{0xa9, 0x03},
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{0xaa, 0x66},
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{0xab, 0x03},
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{0xac, 0x76},
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{0xad, 0x03},
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{0xae, 0x85},
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{0xaf, 0x03},
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{0xb0, 0x90},
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{0xb1, 0x03},
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{0xb2, 0xcb},
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{0xb3, 0x00},
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{0xb4, 0xdf},
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{0xb5, 0x00},
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{0xb6, 0xe4},
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{0xb7, 0x00},
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{0xb8, 0xed},
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{0xb9, 0x00},
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{0xba, 0xf6},
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{0xbb, 0x00},
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{0xbc, 0xff},
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{0xbd, 0x01},
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{0xbe, 0x07},
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{0xbf, 0x01},
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{0xc0, 0x10},
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{0xc1, 0x01},
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{0xc2, 0x18},
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{0xc3, 0x01},
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{0xc4, 0x20},
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{0xc5, 0x01},
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{0xc6, 0x3d},
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{0xc7, 0x01},
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{0xc8, 0x56},
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{0xc9, 0x01},
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{0xca, 0x84},
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{0xcb, 0x01},
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{0xcc, 0xab},
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{0xcd, 0x01},
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{0xce, 0xec},
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{0xcf, 0x02},
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{0xd0, 0x22},
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{0xd1, 0x02},
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{0xd2, 0x23},
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{0xd3, 0x02},
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{0xd4, 0x55},
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{0xd5, 0x02},
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{0xd6, 0x8b},
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{0xd7, 0x02},
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{0xd8, 0xaf},
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{0xd9, 0x02},
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{0xda, 0xdf},
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{0xdb, 0x03},
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{0xdc, 0x01},
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{0xdd, 0x03},
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{0xde, 0x2c},
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{0xdf, 0x03},
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{0xe0, 0x39},
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{0xe1, 0x03},
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{0xe2, 0x47},
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{0xe3, 0x03},
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{0xe4, 0x56},
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{0xe5, 0x03},
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{0xe6, 0x66},
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{0xe7, 0x03},
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{0xe8, 0x76},
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{0xe9, 0x03},
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{0xea, 0x85},
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{0xeb, 0x03},
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{0xec, 0x90},
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{0xed, 0x03},
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{0xee, 0xcb},
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{0xef, 0x00},
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{0xf0, 0xbb},
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{0xf1, 0x00},
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{0xf2, 0xc0},
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{0xf3, 0x00},
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{0xf4, 0xcc},
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{0xf5, 0x00},
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{0xf6, 0xd6},
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{0xf7, 0x00},
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{0xf8, 0xe1},
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{0xf9, 0x00},
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{0xfa, 0xea},
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/* Select CMD2 Page2 (Undocumented) */
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{0xff, 0x02},
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/* Reload CMD1: Don't reload default value to register */
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{0xfb, 0x01},
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{0x00, 0x00},
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{0x01, 0xf4},
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{0x02, 0x00},
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{0x03, 0xef},
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{0x04, 0x01},
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{0x05, 0x07},
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{0x06, 0x01},
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{0x07, 0x28},
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{0x08, 0x01},
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{0x09, 0x44},
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{0x0a, 0x01},
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{0x0b, 0x76},
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{0x0c, 0x01},
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{0x0d, 0xa0},
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{0x0e, 0x01},
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{0x0f, 0xe7},
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{0x10, 0x02},
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{0x11, 0x1f},
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{0x12, 0x02},
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{0x13, 0x22},
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{0x14, 0x02},
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{0x15, 0x54},
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{0x16, 0x02},
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{0x17, 0x8b},
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{0x18, 0x02},
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|
|
{0x19, 0xaf},
|
||
|
|
{0x1a, 0x02},
|
||
|
|
{0x1b, 0xe0},
|
||
|
|
{0x1c, 0x03},
|
||
|
|
{0x1d, 0x01},
|
||
|
|
{0x1e, 0x03},
|
||
|
|
{0x1f, 0x2d},
|
||
|
|
{0x20, 0x03},
|
||
|
|
{0x21, 0x39},
|
||
|
|
{0x22, 0x03},
|
||
|
|
{0x23, 0x47},
|
||
|
|
{0x24, 0x03},
|
||
|
|
{0x25, 0x57},
|
||
|
|
{0x26, 0x03},
|
||
|
|
{0x27, 0x65},
|
||
|
|
{0x28, 0x03},
|
||
|
|
{0x29, 0x77},
|
||
|
|
{0x2a, 0x03},
|
||
|
|
{0x2b, 0x85},
|
||
|
|
{0x2d, 0x03},
|
||
|
|
{0x2f, 0x8f},
|
||
|
|
{0x30, 0x03},
|
||
|
|
{0x31, 0xcb},
|
||
|
|
{0x32, 0x00},
|
||
|
|
{0x33, 0xbb},
|
||
|
|
{0x34, 0x00},
|
||
|
|
{0x35, 0xc0},
|
||
|
|
{0x36, 0x00},
|
||
|
|
{0x37, 0xcc},
|
||
|
|
{0x38, 0x00},
|
||
|
|
{0x39, 0xd6},
|
||
|
|
{0x3a, 0x00},
|
||
|
|
{0x3b, 0xe1},
|
||
|
|
{0x3d, 0x00},
|
||
|
|
{0x3f, 0xea},
|
||
|
|
{0x40, 0x00},
|
||
|
|
{0x41, 0xf4},
|
||
|
|
{0x42, 0x00},
|
||
|
|
{0x43, 0xfe},
|
||
|
|
{0x44, 0x01},
|
||
|
|
{0x45, 0x07},
|
||
|
|
{0x46, 0x01},
|
||
|
|
{0x47, 0x28},
|
||
|
|
{0x48, 0x01},
|
||
|
|
{0x49, 0x44},
|
||
|
|
{0x4a, 0x01},
|
||
|
|
{0x4b, 0x76},
|
||
|
|
{0x4c, 0x01},
|
||
|
|
{0x4d, 0xa0},
|
||
|
|
{0x4e, 0x01},
|
||
|
|
{0x4f, 0xe7},
|
||
|
|
{0x50, 0x02},
|
||
|
|
{0x51, 0x1f},
|
||
|
|
{0x52, 0x02},
|
||
|
|
{0x53, 0x22},
|
||
|
|
{0x54, 0x02},
|
||
|
|
{0x55, 0x54},
|
||
|
|
{0x56, 0x02},
|
||
|
|
{0x58, 0x8b},
|
||
|
|
{0x59, 0x02},
|
||
|
|
{0x5a, 0xaf},
|
||
|
|
{0x5b, 0x02},
|
||
|
|
{0x5c, 0xe0},
|
||
|
|
{0x5d, 0x03},
|
||
|
|
{0x5e, 0x01},
|
||
|
|
{0x5f, 0x03},
|
||
|
|
{0x60, 0x2d},
|
||
|
|
{0x61, 0x03},
|
||
|
|
{0x62, 0x39},
|
||
|
|
{0x63, 0x03},
|
||
|
|
{0x64, 0x47},
|
||
|
|
{0x65, 0x03},
|
||
|
|
{0x66, 0x57},
|
||
|
|
{0x67, 0x03},
|
||
|
|
{0x68, 0x65},
|
||
|
|
{0x69, 0x03},
|
||
|
|
{0x6a, 0x77},
|
||
|
|
{0x6b, 0x03},
|
||
|
|
{0x6c, 0x85},
|
||
|
|
{0x6d, 0x03},
|
||
|
|
{0x6e, 0x8f},
|
||
|
|
{0x6f, 0x03},
|
||
|
|
{0x70, 0xcb},
|
||
|
|
{0x71, 0x00},
|
||
|
|
{0x72, 0x00},
|
||
|
|
{0x73, 0x00},
|
||
|
|
{0x74, 0x21},
|
||
|
|
{0x75, 0x00},
|
||
|
|
{0x76, 0x4c},
|
||
|
|
{0x77, 0x00},
|
||
|
|
{0x78, 0x6b},
|
||
|
|
{0x79, 0x00},
|
||
|
|
{0x7a, 0x85},
|
||
|
|
{0x7b, 0x00},
|
||
|
|
{0x7c, 0x9a},
|
||
|
|
{0x7d, 0x00},
|
||
|
|
{0x7e, 0xad},
|
||
|
|
{0x7f, 0x00},
|
||
|
|
{0x80, 0xbe},
|
||
|
|
{0x81, 0x00},
|
||
|
|
{0x82, 0xcd},
|
||
|
|
{0x83, 0x01},
|
||
|
|
{0x84, 0x01},
|
||
|
|
{0x85, 0x01},
|
||
|
|
{0x86, 0x29},
|
||
|
|
{0x87, 0x01},
|
||
|
|
{0x88, 0x68},
|
||
|
|
{0x89, 0x01},
|
||
|
|
{0x8a, 0x98},
|
||
|
|
{0x8b, 0x01},
|
||
|
|
{0x8c, 0xe5},
|
||
|
|
{0x8d, 0x02},
|
||
|
|
{0x8e, 0x1e},
|
||
|
|
{0x8f, 0x02},
|
||
|
|
{0x90, 0x30},
|
||
|
|
{0x91, 0x02},
|
||
|
|
{0x92, 0x52},
|
||
|
|
{0x93, 0x02},
|
||
|
|
{0x94, 0x88},
|
||
|
|
{0x95, 0x02},
|
||
|
|
{0x96, 0xaa},
|
||
|
|
{0x97, 0x02},
|
||
|
|
{0x98, 0xd7},
|
||
|
|
{0x99, 0x02},
|
||
|
|
{0x9a, 0xf7},
|
||
|
|
{0x9b, 0x03},
|
||
|
|
{0x9c, 0x21},
|
||
|
|
{0x9d, 0x03},
|
||
|
|
{0x9e, 0x2e},
|
||
|
|
{0x9f, 0x03},
|
||
|
|
{0xa0, 0x3d},
|
||
|
|
{0xa2, 0x03},
|
||
|
|
{0xa3, 0x4c},
|
||
|
|
{0xa4, 0x03},
|
||
|
|
{0xa5, 0x5e},
|
||
|
|
{0xa6, 0x03},
|
||
|
|
{0xa7, 0x71},
|
||
|
|
{0xa9, 0x03},
|
||
|
|
{0xaa, 0x86},
|
||
|
|
{0xab, 0x03},
|
||
|
|
{0xac, 0x94},
|
||
|
|
{0xad, 0x03},
|
||
|
|
{0xae, 0xfa},
|
||
|
|
{0xaf, 0x00},
|
||
|
|
{0xb0, 0x00},
|
||
|
|
{0xb1, 0x00},
|
||
|
|
{0xb2, 0x21},
|
||
|
|
{0xb3, 0x00},
|
||
|
|
{0xb4, 0x4c},
|
||
|
|
{0xb5, 0x00},
|
||
|
|
{0xb6, 0x6b},
|
||
|
|
{0xb7, 0x00},
|
||
|
|
{0xb8, 0x85},
|
||
|
|
{0xb9, 0x00},
|
||
|
|
{0xba, 0x9a},
|
||
|
|
{0xbb, 0x00},
|
||
|
|
{0xbc, 0xad},
|
||
|
|
{0xbd, 0x00},
|
||
|
|
{0xbe, 0xbe},
|
||
|
|
{0xbf, 0x00},
|
||
|
|
{0xc0, 0xcd},
|
||
|
|
{0xc1, 0x01},
|
||
|
|
{0xc2, 0x01},
|
||
|
|
{0xc3, 0x01},
|
||
|
|
{0xc4, 0x29},
|
||
|
|
{0xc5, 0x01},
|
||
|
|
{0xc6, 0x68},
|
||
|
|
{0xc7, 0x01},
|
||
|
|
{0xc8, 0x98},
|
||
|
|
{0xc9, 0x01},
|
||
|
|
{0xca, 0xe5},
|
||
|
|
{0xcb, 0x02},
|
||
|
|
{0xcc, 0x1e},
|
||
|
|
{0xcd, 0x02},
|
||
|
|
{0xce, 0x20},
|
||
|
|
{0xcf, 0x02},
|
||
|
|
{0xd0, 0x52},
|
||
|
|
{0xd1, 0x02},
|
||
|
|
{0xd2, 0x88},
|
||
|
|
{0xd3, 0x02},
|
||
|
|
{0xd4, 0xaa},
|
||
|
|
{0xd5, 0x02},
|
||
|
|
{0xd6, 0xd7},
|
||
|
|
{0xd7, 0x02},
|
||
|
|
{0xd8, 0xf7},
|
||
|
|
{0xd9, 0x03},
|
||
|
|
{0xda, 0x21},
|
||
|
|
{0xdb, 0x03},
|
||
|
|
{0xdc, 0x2e},
|
||
|
|
{0xdd, 0x03},
|
||
|
|
{0xde, 0x3d},
|
||
|
|
{0xdf, 0x03},
|
||
|
|
{0xe0, 0x4c},
|
||
|
|
{0xe1, 0x03},
|
||
|
|
{0xe2, 0x5e},
|
||
|
|
{0xe3, 0x03},
|
||
|
|
{0xe4, 0x71},
|
||
|
|
{0xe5, 0x03},
|
||
|
|
{0xe6, 0x86},
|
||
|
|
{0xe7, 0x03},
|
||
|
|
{0xe8, 0x94},
|
||
|
|
{0xe9, 0x03},
|
||
|
|
{0xea, 0xfa},
|
||
|
|
/* Select CMD2 Page0 (Undocumented) */
|
||
|
|
{0xff, 0x01},
|
||
|
|
/* Reload CMD1: Don't reload default value to register */
|
||
|
|
{0xfb, 0x01},
|
||
|
|
/* Select CMD2 Page1 (Undocumented) */
|
||
|
|
{0xff, 0x02},
|
||
|
|
/* Reload CMD1: Don't reload default value to register */
|
||
|
|
{0xfb, 0x01},
|
||
|
|
/* Select CMD2 Page3 (Undocumented) */
|
||
|
|
{0xff, 0x04},
|
||
|
|
/* Reload CMD1: Don't reload default value to register */
|
||
|
|
{0xfb, 0x01},
|
||
|
|
/* Select CMD1 */
|
||
|
|
{0xff, 0x00},
|
||
|
|
{0xd3, 0x05}, /* RGBMIPICTRL: VSYNC back porch = 5 */
|
||
|
|
{0xd4, 0x04}, /* RGBMIPICTRL: VSYNC front porch = 4 */
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline
|
||
|
|
struct khadas_ts050_panel *to_khadas_ts050_panel(struct drm_panel *panel)
|
||
|
|
{
|
||
|
|
return container_of(panel, struct khadas_ts050_panel, base);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_prepare(struct drm_panel *panel)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
|
||
|
|
unsigned int i;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (khadas_ts050->prepared)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 0);
|
||
|
|
|
||
|
|
err = regulator_enable(khadas_ts050->supply);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 1);
|
||
|
|
|
||
|
|
msleep(60);
|
||
|
|
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 1);
|
||
|
|
|
||
|
|
usleep_range(10000, 11000);
|
||
|
|
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 0);
|
||
|
|
|
||
|
|
/* Select CMD2 page 4 (Undocumented) */
|
||
|
|
mipi_dsi_dcs_write(khadas_ts050->link, 0xff, (u8[]){ 0x05 }, 1);
|
||
|
|
|
||
|
|
/* Reload CMD1: Don't reload default value to register */
|
||
|
|
mipi_dsi_dcs_write(khadas_ts050->link, 0xfb, (u8[]){ 0x01 }, 1);
|
||
|
|
|
||
|
|
mipi_dsi_dcs_write(khadas_ts050->link, 0xc5, (u8[]){ 0x01 }, 1);
|
||
|
|
|
||
|
|
msleep(100);
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(init_code); i++) {
|
||
|
|
err = mipi_dsi_dcs_write(khadas_ts050->link,
|
||
|
|
init_code[i].cmd,
|
||
|
|
&init_code[i].data, 1);
|
||
|
|
if (err < 0) {
|
||
|
|
dev_err(panel->dev, "failed write cmds: %d\n", err);
|
||
|
|
goto poweroff;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
err = mipi_dsi_dcs_exit_sleep_mode(khadas_ts050->link);
|
||
|
|
if (err < 0) {
|
||
|
|
dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
|
||
|
|
goto poweroff;
|
||
|
|
}
|
||
|
|
|
||
|
|
msleep(120);
|
||
|
|
|
||
|
|
/* Select CMD1 */
|
||
|
|
mipi_dsi_dcs_write(khadas_ts050->link, 0xff, (u8[]){ 0x00 }, 1);
|
||
|
|
|
||
|
|
err = mipi_dsi_dcs_set_tear_on(khadas_ts050->link,
|
||
|
|
MIPI_DSI_DCS_TEAR_MODE_VBLANK);
|
||
|
|
if (err < 0) {
|
||
|
|
dev_err(panel->dev, "failed to set tear on: %d\n", err);
|
||
|
|
goto poweroff;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = mipi_dsi_dcs_set_display_on(khadas_ts050->link);
|
||
|
|
if (err < 0) {
|
||
|
|
dev_err(panel->dev, "failed to set display on: %d\n", err);
|
||
|
|
goto poweroff;
|
||
|
|
}
|
||
|
|
|
||
|
|
usleep_range(10000, 11000);
|
||
|
|
|
||
|
|
khadas_ts050->prepared = true;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
poweroff:
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 0);
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 1);
|
||
|
|
|
||
|
|
regulator_disable(khadas_ts050->supply);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_unprepare(struct drm_panel *panel)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!khadas_ts050->prepared)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
khadas_ts050->prepared = false;
|
||
|
|
|
||
|
|
err = mipi_dsi_dcs_enter_sleep_mode(khadas_ts050->link);
|
||
|
|
if (err < 0)
|
||
|
|
dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
|
||
|
|
|
||
|
|
msleep(150);
|
||
|
|
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 0);
|
||
|
|
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 1);
|
||
|
|
|
||
|
|
err = regulator_disable(khadas_ts050->supply);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_enable(struct drm_panel *panel)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
|
||
|
|
|
||
|
|
khadas_ts050->enabled = true;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_disable(struct drm_panel *panel)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!khadas_ts050->enabled)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err = mipi_dsi_dcs_set_display_off(khadas_ts050->link);
|
||
|
|
if (err < 0)
|
||
|
|
dev_err(panel->dev, "failed to set display off: %d\n", err);
|
||
|
|
|
||
|
|
usleep_range(10000, 11000);
|
||
|
|
|
||
|
|
khadas_ts050->enabled = false;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct drm_display_mode default_mode = {
|
||
|
|
.clock = 120000,
|
||
|
|
.hdisplay = 1088,
|
||
|
|
.hsync_start = 1088 + 104,
|
||
|
|
.hsync_end = 1088 + 104 + 4,
|
||
|
|
.htotal = 1088 + 104 + 4 + 127,
|
||
|
|
.vdisplay = 1920,
|
||
|
|
.vsync_start = 1920 + 4,
|
||
|
|
.vsync_end = 1920 + 4 + 2,
|
||
|
|
.vtotal = 1920 + 4 + 2 + 3,
|
||
|
|
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_get_modes(struct drm_panel *panel,
|
||
|
|
struct drm_connector *connector)
|
||
|
|
{
|
||
|
|
struct drm_display_mode *mode;
|
||
|
|
|
||
|
|
mode = drm_mode_duplicate(connector->dev, &default_mode);
|
||
|
|
if (!mode) {
|
||
|
|
dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
|
||
|
|
default_mode.hdisplay, default_mode.vdisplay,
|
||
|
|
drm_mode_vrefresh(&default_mode));
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
drm_mode_set_name(mode);
|
||
|
|
|
||
|
|
drm_mode_probed_add(connector, mode);
|
||
|
|
|
||
|
|
connector->display_info.width_mm = 64;
|
||
|
|
connector->display_info.height_mm = 118;
|
||
|
|
connector->display_info.bpc = 8;
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct drm_panel_funcs khadas_ts050_panel_funcs = {
|
||
|
|
.prepare = khadas_ts050_panel_prepare,
|
||
|
|
.unprepare = khadas_ts050_panel_unprepare,
|
||
|
|
.enable = khadas_ts050_panel_enable,
|
||
|
|
.disable = khadas_ts050_panel_disable,
|
||
|
|
.get_modes = khadas_ts050_panel_get_modes,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct of_device_id khadas_ts050_of_match[] = {
|
||
|
|
{ .compatible = "khadas,ts050", },
|
||
|
|
{ /* sentinel */ }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(of, khadas_ts050_of_match);
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_add(struct khadas_ts050_panel *khadas_ts050)
|
||
|
|
{
|
||
|
|
struct device *dev = &khadas_ts050->link->dev;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
khadas_ts050->supply = devm_regulator_get(dev, "power");
|
||
|
|
if (IS_ERR(khadas_ts050->supply))
|
||
|
|
return dev_err_probe(dev, PTR_ERR(khadas_ts050->supply),
|
||
|
|
"failed to get power supply");
|
||
|
|
|
||
|
|
khadas_ts050->reset_gpio = devm_gpiod_get(dev, "reset",
|
||
|
|
GPIOD_OUT_LOW);
|
||
|
|
if (IS_ERR(khadas_ts050->reset_gpio))
|
||
|
|
return dev_err_probe(dev, PTR_ERR(khadas_ts050->reset_gpio),
|
||
|
|
"failed to get reset gpio");
|
||
|
|
|
||
|
|
khadas_ts050->enable_gpio = devm_gpiod_get(dev, "enable",
|
||
|
|
GPIOD_OUT_HIGH);
|
||
|
|
if (IS_ERR(khadas_ts050->enable_gpio))
|
||
|
|
return dev_err_probe(dev, PTR_ERR(khadas_ts050->enable_gpio),
|
||
|
|
"failed to get enable gpio");
|
||
|
|
|
||
|
|
drm_panel_init(&khadas_ts050->base, &khadas_ts050->link->dev,
|
||
|
|
&khadas_ts050_panel_funcs, DRM_MODE_CONNECTOR_DSI);
|
||
|
|
|
||
|
|
err = drm_panel_of_backlight(&khadas_ts050->base);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
drm_panel_add(&khadas_ts050->base);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_probe(struct mipi_dsi_device *dsi)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
dsi->lanes = 4;
|
||
|
|
dsi->format = MIPI_DSI_FMT_RGB888;
|
||
|
|
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
|
||
|
|
MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
|
||
|
|
|
||
|
|
khadas_ts050 = devm_kzalloc(&dsi->dev, sizeof(*khadas_ts050),
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (!khadas_ts050)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
mipi_dsi_set_drvdata(dsi, khadas_ts050);
|
||
|
|
khadas_ts050->link = dsi;
|
||
|
|
|
||
|
|
err = khadas_ts050_panel_add(khadas_ts050);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = mipi_dsi_attach(dsi);
|
||
|
|
if (err)
|
||
|
|
drm_panel_remove(&khadas_ts050->base);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int khadas_ts050_panel_remove(struct mipi_dsi_device *dsi)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050 = mipi_dsi_get_drvdata(dsi);
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = mipi_dsi_detach(dsi);
|
||
|
|
if (err < 0)
|
||
|
|
dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
|
||
|
|
|
||
|
|
drm_panel_remove(&khadas_ts050->base);
|
||
|
|
drm_panel_disable(&khadas_ts050->base);
|
||
|
|
drm_panel_unprepare(&khadas_ts050->base);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void khadas_ts050_panel_shutdown(struct mipi_dsi_device *dsi)
|
||
|
|
{
|
||
|
|
struct khadas_ts050_panel *khadas_ts050 = mipi_dsi_get_drvdata(dsi);
|
||
|
|
|
||
|
|
drm_panel_disable(&khadas_ts050->base);
|
||
|
|
drm_panel_unprepare(&khadas_ts050->base);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct mipi_dsi_driver khadas_ts050_panel_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "panel-khadas-ts050",
|
||
|
|
.of_match_table = khadas_ts050_of_match,
|
||
|
|
},
|
||
|
|
.probe = khadas_ts050_panel_probe,
|
||
|
|
.remove = khadas_ts050_panel_remove,
|
||
|
|
.shutdown = khadas_ts050_panel_shutdown,
|
||
|
|
};
|
||
|
|
module_mipi_dsi_driver(khadas_ts050_panel_driver);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
|
||
|
|
MODULE_DESCRIPTION("Khadas TS050 panel driver");
|
||
|
|
MODULE_LICENSE("GPL v2");
|