drm/tinydrm: Rename folder to tiny

The drm in tinydrm is superfluous so rename to tiny.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190725105132.22545-3-noralf@tronnes.org

1 files changed, 0 insertions, 424 deletions

diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
deleted file mode 100644
index 3cc21a1b30c8..000000000000
--- a/drivers/gpu/drm/tinydrm/st7586.c
+++ /dev/null
@@ -1,424 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * DRM driver for Sitronix ST7586 panels
- *
- * Copyright 2017 David Lechner <david@lechnology.com>
- */
-
-#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_damage_helper.h>
-#include <drm/drm_drv.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_format_helper.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-#include <drm/drm_mipi_dbi.h>
-#include <drm/drm_rect.h>
-#include <drm/drm_vblank.h>
-
-/* controller-specific commands */
-#define ST7586_DISP_MODE_GRAY	0x38
-#define ST7586_DISP_MODE_MONO	0x39
-#define ST7586_ENABLE_DDRAM	0x3a
-#define ST7586_SET_DISP_DUTY	0xb0
-#define ST7586_SET_PART_DISP	0xb4
-#define ST7586_SET_NLINE_INV	0xb5
-#define ST7586_SET_VOP		0xc0
-#define ST7586_SET_BIAS_SYSTEM	0xc3
-#define ST7586_SET_BOOST_LEVEL	0xc4
-#define ST7586_SET_VOP_OFFSET	0xc7
-#define ST7586_ENABLE_ANALOG	0xd0
-#define ST7586_AUTO_READ_CTRL	0xd7
-#define ST7586_OTP_RW_CTRL	0xe0
-#define ST7586_OTP_CTRL_OUT	0xe1
-#define ST7586_OTP_READ		0xe3
-
-#define ST7586_DISP_CTRL_MX	BIT(6)
-#define ST7586_DISP_CTRL_MY	BIT(7)
-
-/*
- * The ST7586 controller has an unusual pixel format where 2bpp grayscale is
- * packed 3 pixels per byte with the first two pixels using 3 bits and the 3rd
- * pixel using only 2 bits.
- *
- * |  D7  |  D6  |  D5  ||      |      || 2bpp |
- * | (D4) | (D3) | (D2) ||  D1  |  D0  || GRAY |
- * +------+------+------++------+------++------+
- * |  1   |  1   |  1   ||  1   |  1   || 0  0 | black
- * |  1   |  0   |  0   ||  1   |  0   || 0  1 | dark gray
- * |  0   |  1   |  0   ||  0   |  1   || 1  0 | light gray
- * |  0   |  0   |  0   ||  0   |  0   || 1  1 | white
- */
-
-static const u8 st7586_lookup[] = { 0x7, 0x4, 0x2, 0x0 };
-
-static void st7586_xrgb8888_to_gray332(u8 *dst, void *vaddr,
-				       struct drm_framebuffer *fb,
-				       struct drm_rect *clip)
-{
-	size_t len = (clip->x2 - clip->x1) * (clip->y2 - clip->y1);
-	unsigned int x, y;
-	u8 *src, *buf, val;
-
-	buf = kmalloc(len, GFP_KERNEL);
-	if (!buf)
-		return;
-
-	drm_fb_xrgb8888_to_gray8(buf, vaddr, fb, clip);
-	src = buf;
-
-	for (y = clip->y1; y < clip->y2; y++) {
-		for (x = clip->x1; x < clip->x2; x += 3) {
-			val = st7586_lookup[*src++ >> 6] << 5;
-			val |= st7586_lookup[*src++ >> 6] << 2;
-			val |= st7586_lookup[*src++ >> 6] >> 1;
-			*dst++ = val;
-		}
-	}
-
-	kfree(buf);
-}
-
-static int st7586_buf_copy(void *dst, struct drm_framebuffer *fb,
-			   struct drm_rect *clip)
-{
-	struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
-	struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
-	void *src = cma_obj->vaddr;
-	int ret = 0;
-
-	if (import_attach) {
-		ret = dma_buf_begin_cpu_access(import_attach->dmabuf,
-					       DMA_FROM_DEVICE);
-		if (ret)
-			return ret;
-	}
-
-	st7586_xrgb8888_to_gray332(dst, src, fb, clip);
-
-	if (import_attach)
-		ret = dma_buf_end_cpu_access(import_attach->dmabuf,
-					     DMA_FROM_DEVICE);
-
-	return ret;
-}
-
-static void st7586_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
-{
-	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(fb->dev);
-	struct mipi_dbi *dbi = &dbidev->dbi;
-	int start, end, idx, ret = 0;
-
-	if (!dbidev->enabled)
-		return;
-
-	if (!drm_dev_enter(fb->dev, &idx))
-		return;
-
-	/* 3 pixels per byte, so grow clip to nearest multiple of 3 */
-	rect->x1 = rounddown(rect->x1, 3);
-	rect->x2 = roundup(rect->x2, 3);
-
-	DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
-
-	ret = st7586_buf_copy(dbidev->tx_buf, fb, rect);
-	if (ret)
-		goto err_msg;
-
-	/* Pixels are packed 3 per byte */
-	start = rect->x1 / 3;
-	end = rect->x2 / 3;
-
-	mipi_dbi_command(dbi, MIPI_DCS_SET_COLUMN_ADDRESS,
-			 (start >> 8) & 0xFF, start & 0xFF,
-			 (end >> 8) & 0xFF, (end - 1) & 0xFF);
-	mipi_dbi_command(dbi, MIPI_DCS_SET_PAGE_ADDRESS,
-			 (rect->y1 >> 8) & 0xFF, rect->y1 & 0xFF,
-			 (rect->y2 >> 8) & 0xFF, (rect->y2 - 1) & 0xFF);
-
-	ret = mipi_dbi_command_buf(dbi, MIPI_DCS_WRITE_MEMORY_START,
-				   (u8 *)dbidev->tx_buf,
-				   (end - start) * (rect->y2 - rect->y1));
-err_msg:
-	if (ret)
-		dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret);
-
-	drm_dev_exit(idx);
-}
-
-static void st7586_pipe_update(struct drm_simple_display_pipe *pipe,
-			       struct drm_plane_state *old_state)
-{
-	struct drm_plane_state *state = pipe->plane.state;
-	struct drm_crtc *crtc = &pipe->crtc;
-	struct drm_rect rect;
-
-	if (drm_atomic_helper_damage_merged(old_state, state, &rect))
-		st7586_fb_dirty(state->fb, &rect);
-
-	if (crtc->state->event) {
-		spin_lock_irq(&crtc->dev->event_lock);
-		drm_crtc_send_vblank_event(crtc, crtc->state->event);
-		spin_unlock_irq(&crtc->dev->event_lock);
-		crtc->state->event = NULL;
-	}
-}
-
-static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
-			       struct drm_crtc_state *crtc_state,
-			       struct drm_plane_state *plane_state)
-{
-	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
-	struct drm_framebuffer *fb = plane_state->fb;
-	struct mipi_dbi *dbi = &dbidev->dbi;
-	struct drm_rect rect = {
-		.x1 = 0,
-		.x2 = fb->width,
-		.y1 = 0,
-		.y2 = fb->height,
-	};
-	int idx, ret;
-	u8 addr_mode;
-
-	if (!drm_dev_enter(pipe->crtc.dev, &idx))
-		return;
-
-	DRM_DEBUG_KMS("\n");
-
-	ret = mipi_dbi_poweron_reset(dbidev);
-	if (ret)
-		goto out_exit;
-
-	mipi_dbi_command(dbi, ST7586_AUTO_READ_CTRL, 0x9f);
-	mipi_dbi_command(dbi, ST7586_OTP_RW_CTRL, 0x00);
-
-	msleep(10);
-
-	mipi_dbi_command(dbi, ST7586_OTP_READ);
-
-	msleep(20);
-
-	mipi_dbi_command(dbi, ST7586_OTP_CTRL_OUT);
-	mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
-	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
-
-	msleep(50);
-
-	mipi_dbi_command(dbi, ST7586_SET_VOP_OFFSET, 0x00);
-	mipi_dbi_command(dbi, ST7586_SET_VOP, 0xe3, 0x00);
-	mipi_dbi_command(dbi, ST7586_SET_BIAS_SYSTEM, 0x02);
-	mipi_dbi_command(dbi, ST7586_SET_BOOST_LEVEL, 0x04);
-	mipi_dbi_command(dbi, ST7586_ENABLE_ANALOG, 0x1d);
-	mipi_dbi_command(dbi, ST7586_SET_NLINE_INV, 0x00);
-	mipi_dbi_command(dbi, ST7586_DISP_MODE_GRAY);
-	mipi_dbi_command(dbi, ST7586_ENABLE_DDRAM, 0x02);
-
-	switch (dbidev->rotation) {
-	default:
-		addr_mode = 0x00;
-		break;
-	case 90:
-		addr_mode = ST7586_DISP_CTRL_MY;
-		break;
-	case 180:
-		addr_mode = ST7586_DISP_CTRL_MX | ST7586_DISP_CTRL_MY;
-		break;
-	case 270:
-		addr_mode = ST7586_DISP_CTRL_MX;
-		break;
-	}
-	mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
-
-	mipi_dbi_command(dbi, ST7586_SET_DISP_DUTY, 0x7f);
-	mipi_dbi_command(dbi, ST7586_SET_PART_DISP, 0xa0);
-	mipi_dbi_command(dbi, MIPI_DCS_SET_PARTIAL_AREA, 0x00, 0x00, 0x00, 0x77);
-	mipi_dbi_command(dbi, MIPI_DCS_EXIT_INVERT_MODE);
-
-	msleep(100);
-
-	dbidev->enabled = true;
-	st7586_fb_dirty(fb, &rect);
-
-	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
-out_exit:
-	drm_dev_exit(idx);
-}
-
-static void st7586_pipe_disable(struct drm_simple_display_pipe *pipe)
-{
-	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
-
-	/*
-	 * This callback is not protected by drm_dev_enter/exit since we want to
-	 * turn off the display on regular driver unload. It's highly unlikely
-	 * that the underlying SPI controller is gone should this be called after
-	 * unplug.
-	 */
-
-	DRM_DEBUG_KMS("\n");
-
-	if (!dbidev->enabled)
-		return;
-
-	mipi_dbi_command(&dbidev->dbi, MIPI_DCS_SET_DISPLAY_OFF);
-	dbidev->enabled = false;
-}
-
-static const u32 st7586_formats[] = {
-	DRM_FORMAT_XRGB8888,
-};
-
-static const struct drm_simple_display_pipe_funcs st7586_pipe_funcs = {
-	.enable		= st7586_pipe_enable,
-	.disable	= st7586_pipe_disable,
-	.update		= st7586_pipe_update,
-	.prepare_fb	= drm_gem_fb_simple_display_pipe_prepare_fb,
-};
-
-static const struct drm_display_mode st7586_mode = {
-	DRM_SIMPLE_MODE(178, 128, 37, 27),
-};
-
-DEFINE_DRM_GEM_CMA_FOPS(st7586_fops);
-
-static struct drm_driver st7586_driver = {
-	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
-	.fops			= &st7586_fops,
-	.release		= mipi_dbi_release,
-	DRM_GEM_CMA_VMAP_DRIVER_OPS,
-	.debugfs_init		= mipi_dbi_debugfs_init,
-	.name			= "st7586",
-	.desc			= "Sitronix ST7586",
-	.date			= "20170801",
-	.major			= 1,
-	.minor			= 0,
-};
-
-static const struct of_device_id st7586_of_match[] = {
-	{ .compatible = "lego,ev3-lcd" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, st7586_of_match);
-
-static const struct spi_device_id st7586_id[] = {
-	{ "ev3-lcd", 0 },
-	{ },
-};
-MODULE_DEVICE_TABLE(spi, st7586_id);
-
-static int st7586_probe(struct spi_device *spi)
-{
-	struct device *dev = &spi->dev;
-	struct mipi_dbi_dev *dbidev;
-	struct drm_device *drm;
-	struct mipi_dbi *dbi;
-	struct gpio_desc *a0;
-	u32 rotation = 0;
-	size_t bufsize;
-	int ret;
-
-	dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
-	if (!dbidev)
-		return -ENOMEM;
-
-	dbi = &dbidev->dbi;
-	drm = &dbidev->drm;
-	ret = devm_drm_dev_init(dev, drm, &st7586_driver);
-	if (ret) {
-		kfree(dbidev);
-		return ret;
-	}
-
-	drm_mode_config_init(drm);
-
-	bufsize = (st7586_mode.vdisplay + 2) / 3 * st7586_mode.hdisplay;
-
-	dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(dbi->reset)) {
-		DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n");
-		return PTR_ERR(dbi->reset);
-	}
-
-	a0 = devm_gpiod_get(dev, "a0", GPIOD_OUT_LOW);
-	if (IS_ERR(a0)) {
-		DRM_DEV_ERROR(dev, "Failed to get gpio 'a0'\n");
-		return PTR_ERR(a0);
-	}
-
-	device_property_read_u32(dev, "rotation", &rotation);
-
-	ret = mipi_dbi_spi_init(spi, dbi, a0);
-	if (ret)
-		return ret;
-
-	/* Cannot read from this controller via SPI */
-	dbi->read_commands = NULL;
-
-	ret = mipi_dbi_dev_init_with_formats(dbidev, &st7586_pipe_funcs,
-					     st7586_formats, ARRAY_SIZE(st7586_formats),
-					     &st7586_mode, rotation, bufsize);
-	if (ret)
-		return ret;
-
-	/*
-	 * we are using 8-bit data, so we are not actually swapping anything,
-	 * but setting mipi->swap_bytes makes mipi_dbi_typec3_command() do the
-	 * right thing and not use 16-bit transfers (which results in swapped
-	 * bytes on little-endian systems and causes out of order data to be
-	 * sent to the display).
-	 */
-	dbi->swap_bytes = true;
-
-	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 st7586_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 st7586_shutdown(struct spi_device *spi)
-{
-	drm_atomic_helper_shutdown(spi_get_drvdata(spi));
-}
-
-static struct spi_driver st7586_spi_driver = {
-	.driver = {
-		.name = "st7586",
-		.owner = THIS_MODULE,
-		.of_match_table = st7586_of_match,
-	},
-	.id_table = st7586_id,
-	.probe = st7586_probe,
-	.remove = st7586_remove,
-	.shutdown = st7586_shutdown,
-};
-module_spi_driver(st7586_spi_driver);
-
-MODULE_DESCRIPTION("Sitronix ST7586 DRM driver");
-MODULE_AUTHOR("David Lechner <david@lechnology.com>");
-MODULE_LICENSE("GPL");