diff options
Diffstat (limited to 'drivers/gpu/drm/tinydrm/mi0283qt.c')
| -rw-r--r-- | drivers/gpu/drm/tinydrm/mi0283qt.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c b/drivers/gpu/drm/tinydrm/mi0283qt.c deleted file mode 100644 index 3fa62e77c30b..000000000000 --- a/drivers/gpu/drm/tinydrm/mi0283qt.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * DRM driver for Multi-Inno MI0283QT panels - * - * Copyright 2016 Noralf Trønnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/regulator/consumer.h> -#include <linux/spi/spi.h> - -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_gem_framebuffer_helper.h> -#include <drm/drm_modeset_helper.h> -#include <drm/tinydrm/mipi-dbi.h> -#include <drm/tinydrm/tinydrm-helpers.h> -#include <video/mipi_display.h> - -#define ILI9341_FRMCTR1 0xb1 -#define ILI9341_DISCTRL 0xb6 -#define ILI9341_ETMOD 0xb7 - -#define ILI9341_PWCTRL1 0xc0 -#define ILI9341_PWCTRL2 0xc1 -#define ILI9341_VMCTRL1 0xc5 -#define ILI9341_VMCTRL2 0xc7 -#define ILI9341_PWCTRLA 0xcb -#define ILI9341_PWCTRLB 0xcf - -#define ILI9341_PGAMCTRL 0xe0 -#define ILI9341_NGAMCTRL 0xe1 -#define ILI9341_DTCTRLA 0xe8 -#define ILI9341_DTCTRLB 0xea -#define ILI9341_PWRSEQ 0xed - -#define ILI9341_EN3GAM 0xf2 -#define ILI9341_PUMPCTRL 0xf7 - -#define ILI9341_MADCTL_BGR BIT(3) -#define ILI9341_MADCTL_MV BIT(5) -#define ILI9341_MADCTL_MX BIT(6) -#define ILI9341_MADCTL_MY BIT(7) - -static void mi0283qt_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct tinydrm_device *tdev = pipe_to_tinydrm(pipe); - struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev); - u8 addr_mode; - int ret; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_conditional_reset(mipi); - if (ret < 0) - return; - if (ret == 1) - goto out_enable; - - mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_OFF); - - mipi_dbi_command(mipi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30); - mipi_dbi_command(mipi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81); - mipi_dbi_command(mipi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79); - mipi_dbi_command(mipi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02); - mipi_dbi_command(mipi, ILI9341_PUMPCTRL, 0x20); - mipi_dbi_command(mipi, ILI9341_DTCTRLB, 0x00, 0x00); - - /* Power Control */ - mipi_dbi_command(mipi, ILI9341_PWCTRL1, 0x26); - mipi_dbi_command(mipi, ILI9341_PWCTRL2, 0x11); - /* VCOM */ - mipi_dbi_command(mipi, ILI9341_VMCTRL1, 0x35, 0x3e); - mipi_dbi_command(mipi, ILI9341_VMCTRL2, 0xbe); - - /* Memory Access Control */ - mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT); - - /* Frame Rate */ - mipi_dbi_command(mipi, ILI9341_FRMCTR1, 0x00, 0x1b); - - /* Gamma */ - mipi_dbi_command(mipi, ILI9341_EN3GAM, 0x08); - mipi_dbi_command(mipi, MIPI_DCS_SET_GAMMA_CURVE, 0x01); - mipi_dbi_command(mipi, ILI9341_PGAMCTRL, - 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87, - 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00); - mipi_dbi_command(mipi, ILI9341_NGAMCTRL, - 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78, - 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f); - - /* DDRAM */ - mipi_dbi_command(mipi, ILI9341_ETMOD, 0x07); - - /* Display */ - mipi_dbi_command(mipi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00); - mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE); - msleep(100); - - mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON); - msleep(100); - -out_enable: - /* The PiTFT (ili9340) has a hardware reset circuit that - * resets only on power-on and not on each reboot through - * a gpio like the rpi-display does. - * As a result, we need to always apply the rotation value - * regardless of the display "on/off" state. - */ - switch (mipi->rotation) { - default: - addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY | - ILI9341_MADCTL_MX; - break; - case 90: - addr_mode = ILI9341_MADCTL_MY; - break; - case 180: - addr_mode = ILI9341_MADCTL_MV; - break; - case 270: - addr_mode = ILI9341_MADCTL_MX; - break; - } - addr_mode |= ILI9341_MADCTL_BGR; - mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode); - mipi_dbi_enable_flush(mipi, crtc_state, plane_state); -} - -static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = { - .enable = mi0283qt_enable, - .disable = mipi_dbi_pipe_disable, - .update = tinydrm_display_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode mi0283qt_mode = { - TINYDRM_MODE(320, 240, 58, 43), -}; - -DEFINE_DRM_GEM_CMA_FOPS(mi0283qt_fops); - -static struct drm_driver mi0283qt_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | - DRIVER_ATOMIC, - .fops = &mi0283qt_fops, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "mi0283qt", - .desc = "Multi-Inno MI0283QT", - .date = "20160614", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id mi0283qt_of_match[] = { - { .compatible = "multi-inno,mi0283qt" }, - {}, -}; -MODULE_DEVICE_TABLE(of, mi0283qt_of_match); - -static const struct spi_device_id mi0283qt_id[] = { - { "mi0283qt", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, mi0283qt_id); - -static int mi0283qt_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct mipi_dbi *mipi; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - mipi = devm_kzalloc(dev, sizeof(*mipi), GFP_KERNEL); - if (!mipi) - return -ENOMEM; - - mipi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(mipi->reset)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n"); - return PTR_ERR(mipi->reset); - } - - dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); - if (IS_ERR(dc)) { - DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n"); - return PTR_ERR(dc); - } - - mipi->regulator = devm_regulator_get(dev, "power"); - if (IS_ERR(mipi->regulator)) - return PTR_ERR(mipi->regulator); - - mipi->backlight = devm_of_find_backlight(dev); - if (IS_ERR(mipi->backlight)) - return PTR_ERR(mipi->backlight); - - device_property_read_u32(dev, "rotation", &rotation); - - ret = mipi_dbi_spi_init(spi, mipi, dc); - if (ret) - return ret; - - ret = mipi_dbi_init(&spi->dev, mipi, &mi0283qt_pipe_funcs, - &mi0283qt_driver, &mi0283qt_mode, rotation); - if (ret) - return ret; - - spi_set_drvdata(spi, mipi); - - return devm_tinydrm_register(&mipi->tinydrm); -} - -static void mi0283qt_shutdown(struct spi_device *spi) -{ - struct mipi_dbi *mipi = spi_get_drvdata(spi); - - tinydrm_shutdown(&mipi->tinydrm); -} - -static int __maybe_unused mi0283qt_pm_suspend(struct device *dev) -{ - struct mipi_dbi *mipi = dev_get_drvdata(dev); - - return drm_mode_config_helper_suspend(mipi->tinydrm.drm); -} - -static int __maybe_unused mi0283qt_pm_resume(struct device *dev) -{ - struct mipi_dbi *mipi = dev_get_drvdata(dev); - - drm_mode_config_helper_resume(mipi->tinydrm.drm); - - return 0; -} - -static const struct dev_pm_ops mi0283qt_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(mi0283qt_pm_suspend, mi0283qt_pm_resume) -}; - -static struct spi_driver mi0283qt_spi_driver = { - .driver = { - .name = "mi0283qt", - .owner = THIS_MODULE, - .of_match_table = mi0283qt_of_match, - .pm = &mi0283qt_pm_ops, - }, - .id_table = mi0283qt_id, - .probe = mi0283qt_probe, - .shutdown = mi0283qt_shutdown, -}; -module_spi_driver(mi0283qt_spi_driver); - -MODULE_DESCRIPTION("Multi-Inno MI0283QT DRM driver"); -MODULE_AUTHOR("Noralf Trønnes"); -MODULE_LICENSE("GPL"); |