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path: root/drivers/gpu/drm/tinydrm/st7735r.c
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Diffstat (limited to 'drivers/gpu/drm/tinydrm/st7735r.c')
-rw-r--r--drivers/gpu/drm/tinydrm/st7735r.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/drivers/gpu/drm/tinydrm/st7735r.c b/drivers/gpu/drm/tinydrm/st7735r.c
deleted file mode 100644
index ce9109e613e0..000000000000
--- a/drivers/gpu/drm/tinydrm/st7735r.c
+++ /dev/null
@@ -1,245 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * DRM driver for Sitronix ST7735R panels
- *
- * Copyright 2017 David Lechner <david@lechnology.com>
- */
-
-#include <linux/backlight.h>
-#include <linux/delay.h>
-#include <linux/dma-buf.h>
-#include <linux/gpio/consumer.h>
-#include <linux/module.h>
-#include <linux/property.h>
-#include <linux/spi/spi.h>
-#include <video/mipi_display.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/tinydrm/mipi-dbi.h>
-#include <drm/tinydrm/tinydrm-helpers.h>
-
-#define ST7735R_FRMCTR1 0xb1
-#define ST7735R_FRMCTR2 0xb2
-#define ST7735R_FRMCTR3 0xb3
-#define ST7735R_INVCTR 0xb4
-#define ST7735R_PWCTR1 0xc0
-#define ST7735R_PWCTR2 0xc1
-#define ST7735R_PWCTR3 0xc2
-#define ST7735R_PWCTR4 0xc3
-#define ST7735R_PWCTR5 0xc4
-#define ST7735R_VMCTR1 0xc5
-#define ST7735R_GAMCTRP1 0xe0
-#define ST7735R_GAMCTRN1 0xe1
-
-#define ST7735R_MY BIT(7)
-#define ST7735R_MX BIT(6)
-#define ST7735R_MV BIT(5)
-
-static void jd_t18003_t01_pipe_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);
- int ret, idx;
- u8 addr_mode;
-
- if (!drm_dev_enter(pipe->crtc.dev, &idx))
- return;
-
- DRM_DEBUG_KMS("\n");
-
- ret = mipi_dbi_poweron_reset(mipi);
- if (ret)
- goto out_exit;
-
- msleep(150);
-
- mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE);
- msleep(500);
-
- mipi_dbi_command(mipi, ST7735R_FRMCTR1, 0x01, 0x2c, 0x2d);
- mipi_dbi_command(mipi, ST7735R_FRMCTR2, 0x01, 0x2c, 0x2d);
- mipi_dbi_command(mipi, ST7735R_FRMCTR3, 0x01, 0x2c, 0x2d, 0x01, 0x2c,
- 0x2d);
- mipi_dbi_command(mipi, ST7735R_INVCTR, 0x07);
- mipi_dbi_command(mipi, ST7735R_PWCTR1, 0xa2, 0x02, 0x84);
- mipi_dbi_command(mipi, ST7735R_PWCTR2, 0xc5);
- mipi_dbi_command(mipi, ST7735R_PWCTR3, 0x0a, 0x00);
- mipi_dbi_command(mipi, ST7735R_PWCTR4, 0x8a, 0x2a);
- mipi_dbi_command(mipi, ST7735R_PWCTR5, 0x8a, 0xee);
- mipi_dbi_command(mipi, ST7735R_VMCTR1, 0x0e);
- mipi_dbi_command(mipi, MIPI_DCS_EXIT_INVERT_MODE);
- switch (mipi->rotation) {
- default:
- addr_mode = ST7735R_MX | ST7735R_MY;
- break;
- case 90:
- addr_mode = ST7735R_MX | ST7735R_MV;
- break;
- case 180:
- addr_mode = 0;
- break;
- case 270:
- addr_mode = ST7735R_MY | ST7735R_MV;
- break;
- }
- mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
- mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT,
- MIPI_DCS_PIXEL_FMT_16BIT);
- mipi_dbi_command(mipi, ST7735R_GAMCTRP1, 0x02, 0x1c, 0x07, 0x12, 0x37,
- 0x32, 0x29, 0x2d, 0x29, 0x25, 0x2b, 0x39, 0x00, 0x01,
- 0x03, 0x10);
- mipi_dbi_command(mipi, ST7735R_GAMCTRN1, 0x03, 0x1d, 0x07, 0x06, 0x2e,
- 0x2c, 0x29, 0x2d, 0x2e, 0x2e, 0x37, 0x3f, 0x00, 0x00,
- 0x02, 0x10);
- mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
-
- msleep(100);
-
- mipi_dbi_command(mipi, MIPI_DCS_ENTER_NORMAL_MODE);
-
- msleep(20);
-
- mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
-out_exit:
- drm_dev_exit(idx);
-}
-
-static const struct drm_simple_display_pipe_funcs jd_t18003_t01_pipe_funcs = {
- .enable = jd_t18003_t01_pipe_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 jd_t18003_t01_mode = {
- DRM_SIMPLE_MODE(128, 160, 28, 35),
-};
-
-DEFINE_DRM_GEM_CMA_FOPS(st7735r_fops);
-
-static struct drm_driver st7735r_driver = {
- .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
- DRIVER_ATOMIC,
- .fops = &st7735r_fops,
- .release = mipi_dbi_release,
- DRM_GEM_CMA_VMAP_DRIVER_OPS,
- .debugfs_init = mipi_dbi_debugfs_init,
- .name = "st7735r",
- .desc = "Sitronix ST7735R",
- .date = "20171128",
- .major = 1,
- .minor = 0,
-};
-
-static const struct of_device_id st7735r_of_match[] = {
- { .compatible = "jianda,jd-t18003-t01" },
- { },
-};
-MODULE_DEVICE_TABLE(of, st7735r_of_match);
-
-static const struct spi_device_id st7735r_id[] = {
- { "jd-t18003-t01", 0 },
- { },
-};
-MODULE_DEVICE_TABLE(spi, st7735r_id);
-
-static int st7735r_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, &st7735r_driver);
- if (ret) {
- kfree(mipi);
- return ret;
- }
-
- drm_mode_config_init(drm);
-
- mipi->reset = devm_gpiod_get(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(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;
-
- /* Cannot read from Adafruit 1.8" display via SPI */
- mipi->read_commands = NULL;
-
- ret = mipi_dbi_init(mipi, &jd_t18003_t01_pipe_funcs, &jd_t18003_t01_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 st7735r_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 st7735r_shutdown(struct spi_device *spi)
-{
- drm_atomic_helper_shutdown(spi_get_drvdata(spi));
-}
-
-static struct spi_driver st7735r_spi_driver = {
- .driver = {
- .name = "st7735r",
- .owner = THIS_MODULE,
- .of_match_table = st7735r_of_match,
- },
- .id_table = st7735r_id,
- .probe = st7735r_probe,
- .remove = st7735r_remove,
- .shutdown = st7735r_shutdown,
-};
-module_spi_driver(st7735r_spi_driver);
-
-MODULE_DESCRIPTION("Sitronix ST7735R DRM driver");
-MODULE_AUTHOR("David Lechner <david@lechnology.com>");
-MODULE_LICENSE("GPL");
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