diff options
Diffstat (limited to 'drivers/gpu/drm/tinydrm/ili9341.c')
| -rw-r--r-- | drivers/gpu/drm/tinydrm/ili9341.c | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/drivers/gpu/drm/tinydrm/ili9341.c b/drivers/gpu/drm/tinydrm/ili9341.c deleted file mode 100644 index 4ade9e4b924f..000000000000 --- a/drivers/gpu/drm/tinydrm/ili9341.c +++ /dev/null @@ -1,266 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * DRM driver for Ilitek ILI9341 panels - * - * Copyright 2018 David Lechner <david@lechnology.com> - * - * Based on mi0283qt.c: - * Copyright 2016 Noralf Trønnes - */ - -#include <linux/backlight.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/property.h> -#include <linux/spi/spi.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_drv.h> -#include <drm/drm_fb_helper.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 yx240qv29_enable(struct drm_simple_display_pipe *pipe, - struct drm_crtc_state *crtc_state, - struct drm_plane_state *plane_state) -{ - struct mipi_dbi *mipi = drm_to_mipi_dbi(pipe->crtc.dev); - u8 addr_mode; - int ret, idx; - - if (!drm_dev_enter(pipe->crtc.dev, &idx)) - return; - - DRM_DEBUG_KMS("\n"); - - ret = mipi_dbi_poweron_conditional_reset(mipi); - if (ret < 0) - goto out_exit; - if (ret == 1) - goto out_enable; - - mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_OFF); - - mipi_dbi_command(mipi, ILI9341_PWCTRLB, 0x00, 0xc1, 0x30); - mipi_dbi_command(mipi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81); - mipi_dbi_command(mipi, ILI9341_DTCTRLA, 0x85, 0x00, 0x78); - 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, 0x23); - mipi_dbi_command(mipi, ILI9341_PWCTRL2, 0x10); - /* VCOM */ - mipi_dbi_command(mipi, ILI9341_VMCTRL1, 0x3e, 0x28); - mipi_dbi_command(mipi, ILI9341_VMCTRL2, 0x86); - - /* 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, 0x00); - mipi_dbi_command(mipi, MIPI_DCS_SET_GAMMA_CURVE, 0x01); - mipi_dbi_command(mipi, ILI9341_PGAMCTRL, - 0x0f, 0x31, 0x2b, 0x0c, 0x0e, 0x08, 0x4e, 0xf1, - 0x37, 0x07, 0x10, 0x03, 0x0e, 0x09, 0x00); - mipi_dbi_command(mipi, ILI9341_NGAMCTRL, - 0x00, 0x0e, 0x14, 0x03, 0x11, 0x07, 0x31, 0xc1, - 0x48, 0x08, 0x0f, 0x0c, 0x31, 0x36, 0x0f); - - /* DDRAM */ - mipi_dbi_command(mipi, ILI9341_ETMOD, 0x07); - - /* Display */ - mipi_dbi_command(mipi, ILI9341_DISCTRL, 0x08, 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: - switch (mipi->rotation) { - default: - addr_mode = ILI9341_MADCTL_MX; - break; - case 90: - addr_mode = ILI9341_MADCTL_MV; - break; - case 180: - addr_mode = ILI9341_MADCTL_MY; - break; - case 270: - addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY | - 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); -out_exit: - drm_dev_exit(idx); -} - -static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = { - .enable = yx240qv29_enable, - .disable = mipi_dbi_pipe_disable, - .update = mipi_dbi_pipe_update, - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb, -}; - -static const struct drm_display_mode yx240qv29_mode = { - DRM_SIMPLE_MODE(240, 320, 37, 49), -}; - -DEFINE_DRM_GEM_CMA_FOPS(ili9341_fops); - -static struct drm_driver ili9341_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC, - .fops = &ili9341_fops, - .release = mipi_dbi_release, - DRM_GEM_CMA_VMAP_DRIVER_OPS, - .debugfs_init = mipi_dbi_debugfs_init, - .name = "ili9341", - .desc = "Ilitek ILI9341", - .date = "20180514", - .major = 1, - .minor = 0, -}; - -static const struct of_device_id ili9341_of_match[] = { - { .compatible = "adafruit,yx240qv29" }, - { } -}; -MODULE_DEVICE_TABLE(of, ili9341_of_match); - -static const struct spi_device_id ili9341_id[] = { - { "yx240qv29", 0 }, - { } -}; -MODULE_DEVICE_TABLE(spi, ili9341_id); - -static int ili9341_probe(struct spi_device *spi) -{ - struct device *dev = &spi->dev; - struct drm_device *drm; - struct mipi_dbi *mipi; - struct gpio_desc *dc; - u32 rotation = 0; - int ret; - - mipi = kzalloc(sizeof(*mipi), GFP_KERNEL); - if (!mipi) - return -ENOMEM; - - drm = &mipi->drm; - ret = devm_drm_dev_init(dev, drm, &ili9341_driver); - if (ret) { - kfree(mipi); - return ret; - } - - drm_mode_config_init(drm); - - 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->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(mipi, &ili9341_pipe_funcs, &yx240qv29_mode, rotation); - if (ret) - return ret; - - drm_mode_config_reset(drm); - - ret = drm_dev_register(drm, 0); - if (ret) - return ret; - - spi_set_drvdata(spi, drm); - - drm_fbdev_generic_setup(drm, 0); - - return 0; -} - -static int ili9341_remove(struct spi_device *spi) -{ - struct drm_device *drm = spi_get_drvdata(spi); - - drm_dev_unplug(drm); - drm_atomic_helper_shutdown(drm); - - return 0; -} - -static void ili9341_shutdown(struct spi_device *spi) -{ - drm_atomic_helper_shutdown(spi_get_drvdata(spi)); -} - -static struct spi_driver ili9341_spi_driver = { - .driver = { - .name = "ili9341", - .of_match_table = ili9341_of_match, - }, - .id_table = ili9341_id, - .probe = ili9341_probe, - .remove = ili9341_remove, - .shutdown = ili9341_shutdown, -}; -module_spi_driver(ili9341_spi_driver); - -MODULE_DESCRIPTION("Ilitek ILI9341 DRM driver"); -MODULE_AUTHOR("David Lechner <david@lechnology.com>"); -MODULE_LICENSE("GPL"); |
