^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2016 InforceComputing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Author: Vinay Simha BN <simhavcs@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2016 Linaro Ltd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Sumit Semwal <sumit.semwal@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * From internet archives, the panel for Nexus 7 2nd Gen, 2013 model is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * JDI model LT070ME05000, and its data sheet is at:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * http://panelone.net/en/7-0-inch/JDI_LT070ME05000_7.0_inch-datasheet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/backlight.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <video/mipi_display.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <drm/drm_crtc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <drm/drm_mipi_dsi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <drm/drm_modes.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <drm/drm_panel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static const char * const regulator_names[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) "vddp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) "iovcc"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct jdi_panel {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct drm_panel base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct mipi_dsi_device *dsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct gpio_desc *enable_gpio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct gpio_desc *reset_gpio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct gpio_desc *dcdc_en_gpio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct backlight_device *backlight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) bool prepared;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) bool enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) const struct drm_display_mode *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static inline struct jdi_panel *to_jdi_panel(struct drm_panel *panel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return container_of(panel, struct jdi_panel, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int jdi_panel_init(struct jdi_panel *jdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct mipi_dsi_device *dsi = jdi->dsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dsi->mode_flags |= MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) ret = mipi_dsi_dcs_soft_reset(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) usleep_range(10000, 20000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dev_err(dev, "failed to set pixel format: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) ret = mipi_dsi_dcs_set_column_address(dsi, 0, jdi->mode->hdisplay - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) dev_err(dev, "failed to set column address: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) ret = mipi_dsi_dcs_set_page_address(dsi, 0, jdi->mode->vdisplay - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) dev_err(dev, "failed to set page address: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * BIT(5) BCTRL = 1 Backlight Control Block On, Brightness registers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * are active
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * BIT(3) BL = 1 Backlight Control On
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * BIT(2) DD = 0 Display Dimming is Off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ret = mipi_dsi_dcs_write(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) (u8[]){ 0x24 }, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) dev_err(dev, "failed to write control display: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* CABC off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ret = mipi_dsi_dcs_write(dsi, MIPI_DCS_WRITE_POWER_SAVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) (u8[]){ 0x00 }, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) dev_err(dev, "failed to set cabc off: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) dev_err(dev, "failed to set exit sleep mode: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) msleep(120);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ret = mipi_dsi_generic_write(dsi, (u8[]){0xB0, 0x00}, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) dev_err(dev, "failed to set mcap: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) mdelay(10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /* Interface setting, video mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) ret = mipi_dsi_generic_write(dsi, (u8[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {0xB3, 0x26, 0x08, 0x00, 0x20, 0x00}, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) dev_err(dev, "failed to set display interface setting: %d\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) , ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) mdelay(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) ret = mipi_dsi_generic_write(dsi, (u8[]){0xB0, 0x03}, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) dev_err(dev, "failed to set default values for mcap: %d\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) , ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static int jdi_panel_on(struct jdi_panel *jdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct mipi_dsi_device *dsi = jdi->dsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) dsi->mode_flags |= MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) ret = mipi_dsi_dcs_set_display_on(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) dev_err(dev, "failed to set display on: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static void jdi_panel_off(struct jdi_panel *jdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct mipi_dsi_device *dsi = jdi->dsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) ret = mipi_dsi_dcs_set_display_off(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) dev_err(dev, "failed to set display off: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) dev_err(dev, "failed to enter sleep mode: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) msleep(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static int jdi_panel_disable(struct drm_panel *panel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct jdi_panel *jdi = to_jdi_panel(panel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) if (!jdi->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) backlight_disable(jdi->backlight);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) jdi->enabled = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static int jdi_panel_unprepare(struct drm_panel *panel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct jdi_panel *jdi = to_jdi_panel(panel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) if (!jdi->prepared)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) jdi_panel_off(jdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ret = regulator_bulk_disable(ARRAY_SIZE(jdi->supplies), jdi->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) dev_err(dev, "regulator disable failed, %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) gpiod_set_value(jdi->enable_gpio, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) gpiod_set_value(jdi->reset_gpio, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) gpiod_set_value(jdi->dcdc_en_gpio, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) jdi->prepared = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static int jdi_panel_prepare(struct drm_panel *panel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct jdi_panel *jdi = to_jdi_panel(panel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (jdi->prepared)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) ret = regulator_bulk_enable(ARRAY_SIZE(jdi->supplies), jdi->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) dev_err(dev, "regulator enable failed, %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) gpiod_set_value(jdi->dcdc_en_gpio, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) usleep_range(10, 20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) gpiod_set_value(jdi->reset_gpio, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) usleep_range(10, 20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) gpiod_set_value(jdi->enable_gpio, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) usleep_range(10, 20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) ret = jdi_panel_init(jdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) dev_err(dev, "failed to init panel: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) goto poweroff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) ret = jdi_panel_on(jdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) dev_err(dev, "failed to set panel on: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) goto poweroff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) jdi->prepared = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) poweroff:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) ret = regulator_bulk_disable(ARRAY_SIZE(jdi->supplies), jdi->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) dev_err(dev, "regulator disable failed, %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) gpiod_set_value(jdi->enable_gpio, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) gpiod_set_value(jdi->reset_gpio, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) gpiod_set_value(jdi->dcdc_en_gpio, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) static int jdi_panel_enable(struct drm_panel *panel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) struct jdi_panel *jdi = to_jdi_panel(panel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) if (jdi->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) backlight_enable(jdi->backlight);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) jdi->enabled = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) static const struct drm_display_mode default_mode = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) .clock = 155493,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) .hdisplay = 1200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) .hsync_start = 1200 + 48,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) .hsync_end = 1200 + 48 + 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) .htotal = 1200 + 48 + 32 + 60,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) .vdisplay = 1920,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) .vsync_start = 1920 + 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) .vsync_end = 1920 + 3 + 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) .vtotal = 1920 + 3 + 5 + 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) .flags = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) static int jdi_panel_get_modes(struct drm_panel *panel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct drm_connector *connector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) struct drm_display_mode *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) struct jdi_panel *jdi = to_jdi_panel(panel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) mode = drm_mode_duplicate(connector->dev, &default_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (!mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) dev_err(dev, "failed to add mode %ux%ux@%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) default_mode.hdisplay, default_mode.vdisplay,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) drm_mode_vrefresh(&default_mode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) drm_mode_set_name(mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) drm_mode_probed_add(connector, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) connector->display_info.width_mm = 95;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) connector->display_info.height_mm = 151;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) static int dsi_dcs_bl_get_brightness(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct mipi_dsi_device *dsi = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) u16 brightness = bl->props.brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) dsi->mode_flags |= MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) return brightness & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) static int dsi_dcs_bl_update_status(struct backlight_device *bl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct mipi_dsi_device *dsi = bl_get_data(bl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) ret = mipi_dsi_dcs_set_display_brightness(dsi, bl->props.brightness);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) dsi->mode_flags |= MIPI_DSI_MODE_LPM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static const struct backlight_ops dsi_bl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) .update_status = dsi_dcs_bl_update_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) .get_brightness = dsi_dcs_bl_get_brightness,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) static struct backlight_device *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) drm_panel_create_dsi_backlight(struct mipi_dsi_device *dsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct device *dev = &dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct backlight_properties props;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) memset(&props, 0, sizeof(props));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) props.type = BACKLIGHT_RAW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) props.brightness = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) props.max_brightness = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) &dsi_bl_ops, &props);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) static const struct drm_panel_funcs jdi_panel_funcs = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) .disable = jdi_panel_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) .unprepare = jdi_panel_unprepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) .prepare = jdi_panel_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) .enable = jdi_panel_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .get_modes = jdi_panel_get_modes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) static const struct of_device_id jdi_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) { .compatible = "jdi,lt070me05000", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) MODULE_DEVICE_TABLE(of, jdi_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) static int jdi_panel_add(struct jdi_panel *jdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) struct device *dev = &jdi->dsi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) jdi->mode = &default_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) for (i = 0; i < ARRAY_SIZE(jdi->supplies); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) jdi->supplies[i].supply = regulator_names[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(jdi->supplies),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) jdi->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) dev_err(dev, "failed to init regulator, ret=%d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) jdi->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (IS_ERR(jdi->enable_gpio)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) ret = PTR_ERR(jdi->enable_gpio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) dev_err(dev, "cannot get enable-gpio %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) jdi->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (IS_ERR(jdi->reset_gpio)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) ret = PTR_ERR(jdi->reset_gpio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) dev_err(dev, "cannot get reset-gpios %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) jdi->dcdc_en_gpio = devm_gpiod_get(dev, "dcdc-en", GPIOD_OUT_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (IS_ERR(jdi->dcdc_en_gpio)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) ret = PTR_ERR(jdi->dcdc_en_gpio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) dev_err(dev, "cannot get dcdc-en-gpio %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) jdi->backlight = drm_panel_create_dsi_backlight(jdi->dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) if (IS_ERR(jdi->backlight)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) ret = PTR_ERR(jdi->backlight);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) dev_err(dev, "failed to register backlight %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) drm_panel_init(&jdi->base, &jdi->dsi->dev, &jdi_panel_funcs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) DRM_MODE_CONNECTOR_DSI);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) drm_panel_add(&jdi->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) static void jdi_panel_del(struct jdi_panel *jdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (jdi->base.dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) drm_panel_remove(&jdi->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) static int jdi_panel_probe(struct mipi_dsi_device *dsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct jdi_panel *jdi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) dsi->lanes = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) dsi->format = MIPI_DSI_FMT_RGB888;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) dsi->mode_flags = MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) MIPI_DSI_CLOCK_NON_CONTINUOUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) jdi = devm_kzalloc(&dsi->dev, sizeof(*jdi), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (!jdi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) mipi_dsi_set_drvdata(dsi, jdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) jdi->dsi = dsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) ret = jdi_panel_add(jdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) return mipi_dsi_attach(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) static int jdi_panel_remove(struct mipi_dsi_device *dsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) struct jdi_panel *jdi = mipi_dsi_get_drvdata(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) ret = jdi_panel_disable(&jdi->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) ret = mipi_dsi_detach(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) dev_err(&dsi->dev, "failed to detach from DSI host: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) jdi_panel_del(jdi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) static void jdi_panel_shutdown(struct mipi_dsi_device *dsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) struct jdi_panel *jdi = mipi_dsi_get_drvdata(dsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) jdi_panel_disable(&jdi->base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) static struct mipi_dsi_driver jdi_panel_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) .name = "panel-jdi-lt070me05000",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) .of_match_table = jdi_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) .probe = jdi_panel_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) .remove = jdi_panel_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) .shutdown = jdi_panel_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) module_mipi_dsi_driver(jdi_panel_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) MODULE_AUTHOR("Sumit Semwal <sumit.semwal@linaro.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) MODULE_AUTHOR("Vinay Simha BN <simhavcs@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) MODULE_DESCRIPTION("JDI LT070ME05000 WUXGA");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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