drm/arc: Move to drm/tiny

Because it is.

v2: Delete now unused crtc funcs (0day)

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210112084358.2771527-15-daniel.vetter@ffwll.ch

3 files changed, 0 insertions, 447 deletions

diff --git a/drivers/gpu/drm/arc/Kconfig b/drivers/gpu/drm/arc/Kconfig
deleted file mode 100644
index e8f3d63e0b91..000000000000
--- a/drivers/gpu/drm/arc/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-config DRM_ARCPGU
-	tristate "ARC PGU"
-	depends on DRM && OF
-	select DRM_KMS_CMA_HELPER
-	select DRM_KMS_HELPER
-	help
-	  Choose this option if you have an ARC PGU controller.
-
-	  If M is selected the module will be called arcpgu.
diff --git a/drivers/gpu/drm/arc/Makefile b/drivers/gpu/drm/arc/Makefile
deleted file mode 100644
index b26f2495c532..000000000000
--- a/drivers/gpu/drm/arc/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-arcpgu-y := arcpgu_drv.o
-obj-$(CONFIG_DRM_ARCPGU) += arcpgu.o
diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c
deleted file mode 100644
index f8531c50a072..000000000000
--- a/drivers/gpu/drm/arc/arcpgu_drv.c
+++ /dev/null
@@ -1,434 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ARC PGU DRM driver.
- *
- * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
- */
-
-#include <linux/clk.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_debugfs.h>
-#include <drm/drm_device.h>
-#include <drm/drm_drv.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-#include <drm/drm_of.h>
-#include <drm/drm_probe_helper.h>
-#include <drm/drm_simple_kms_helper.h>
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-#include <linux/of_reserved_mem.h>
-#include <linux/platform_device.h>
-
-#define ARCPGU_REG_CTRL		0x00
-#define ARCPGU_REG_STAT		0x04
-#define ARCPGU_REG_FMT		0x10
-#define ARCPGU_REG_HSYNC	0x14
-#define ARCPGU_REG_VSYNC	0x18
-#define ARCPGU_REG_ACTIVE	0x1c
-#define ARCPGU_REG_BUF0_ADDR	0x40
-#define ARCPGU_REG_STRIDE	0x50
-#define ARCPGU_REG_START_SET	0x84
-
-#define ARCPGU_REG_ID		0x3FC
-
-#define ARCPGU_CTRL_ENABLE_MASK	0x02
-#define ARCPGU_CTRL_VS_POL_MASK	0x1
-#define ARCPGU_CTRL_VS_POL_OFST	0x3
-#define ARCPGU_CTRL_HS_POL_MASK	0x1
-#define ARCPGU_CTRL_HS_POL_OFST	0x4
-#define ARCPGU_MODE_XRGB8888	BIT(2)
-#define ARCPGU_STAT_BUSY_MASK	0x02
-
-struct arcpgu_drm_private {
-	struct drm_device	drm;
-	void __iomem		*regs;
-	struct clk		*clk;
-	struct drm_simple_display_pipe pipe;
-	struct drm_connector	sim_conn;
-};
-
-#define dev_to_arcpgu(x) container_of(x, struct arcpgu_drm_private, drm)
-
-#define pipe_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, pipe)
-
-static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu,
-				 unsigned int reg, u32 value)
-{
-	iowrite32(value, arcpgu->regs + reg);
-}
-
-static inline u32 arc_pgu_read(struct arcpgu_drm_private *arcpgu,
-			       unsigned int reg)
-{
-	return ioread32(arcpgu->regs + reg);
-}
-
-#define XRES_DEF	640
-#define YRES_DEF	480
-
-#define XRES_MAX	8192
-#define YRES_MAX	8192
-
-static int arcpgu_drm_connector_get_modes(struct drm_connector *connector)
-{
-	int count;
-
-	count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
-	drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
-	return count;
-}
-
-static const struct drm_connector_helper_funcs
-arcpgu_drm_connector_helper_funcs = {
-	.get_modes = arcpgu_drm_connector_get_modes,
-};
-
-static const struct drm_connector_funcs arcpgu_drm_connector_funcs = {
-	.reset = drm_atomic_helper_connector_reset,
-	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = drm_connector_cleanup,
-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-static int arcpgu_drm_sim_init(struct drm_device *drm, struct drm_connector *connector)
-{
-	drm_connector_helper_add(connector, &arcpgu_drm_connector_helper_funcs);
-	return drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs,
-				  DRM_MODE_CONNECTOR_VIRTUAL);
-}
-
-#define ENCODE_PGU_XY(x, y)	((((x) - 1) << 16) | ((y) - 1))
-
-static const u32 arc_pgu_supported_formats[] = {
-	DRM_FORMAT_RGB565,
-	DRM_FORMAT_XRGB8888,
-	DRM_FORMAT_ARGB8888,
-};
-
-static void arc_pgu_set_pxl_fmt(struct arcpgu_drm_private *arcpgu)
-{
-	const struct drm_framebuffer *fb = arcpgu->pipe.plane.state->fb;
-	uint32_t pixel_format = fb->format->format;
-	u32 format = DRM_FORMAT_INVALID;
-	int i;
-	u32 reg_ctrl;
-
-	for (i = 0; i < ARRAY_SIZE(arc_pgu_supported_formats); i++) {
-		if (arc_pgu_supported_formats[i] == pixel_format)
-			format = arc_pgu_supported_formats[i];
-	}
-
-	if (WARN_ON(format == DRM_FORMAT_INVALID))
-		return;
-
-	reg_ctrl = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
-	if (format == DRM_FORMAT_RGB565)
-		reg_ctrl &= ~ARCPGU_MODE_XRGB8888;
-	else
-		reg_ctrl |= ARCPGU_MODE_XRGB8888;
-	arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, reg_ctrl);
-}
-
-static enum drm_mode_status arc_pgu_mode_valid(struct drm_simple_display_pipe *pipe,
-					       const struct drm_display_mode *mode)
-{
-	struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
-	long rate, clk_rate = mode->clock * 1000;
-	long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */
-
-	rate = clk_round_rate(arcpgu->clk, clk_rate);
-	if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0))
-		return MODE_OK;
-
-	return MODE_NOCLOCK;
-}
-
-static void arc_pgu_mode_set(struct arcpgu_drm_private *arcpgu)
-{
-	struct drm_display_mode *m = &arcpgu->pipe.crtc.state->adjusted_mode;
-	u32 val;
-
-	arc_pgu_write(arcpgu, ARCPGU_REG_FMT,
-		      ENCODE_PGU_XY(m->crtc_htotal, m->crtc_vtotal));
-
-	arc_pgu_write(arcpgu, ARCPGU_REG_HSYNC,
-		      ENCODE_PGU_XY(m->crtc_hsync_start - m->crtc_hdisplay,
-				    m->crtc_hsync_end - m->crtc_hdisplay));
-
-	arc_pgu_write(arcpgu, ARCPGU_REG_VSYNC,
-		      ENCODE_PGU_XY(m->crtc_vsync_start - m->crtc_vdisplay,
-				    m->crtc_vsync_end - m->crtc_vdisplay));
-
-	arc_pgu_write(arcpgu, ARCPGU_REG_ACTIVE,
-		      ENCODE_PGU_XY(m->crtc_hblank_end - m->crtc_hblank_start,
-				    m->crtc_vblank_end - m->crtc_vblank_start));
-
-	val = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
-
-	if (m->flags & DRM_MODE_FLAG_PVSYNC)
-		val |= ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST;
-	else
-		val &= ~(ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST);
-
-	if (m->flags & DRM_MODE_FLAG_PHSYNC)
-		val |= ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST;
-	else
-		val &= ~(ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST);
-
-	arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, val);
-	arc_pgu_write(arcpgu, ARCPGU_REG_STRIDE, 0);
-	arc_pgu_write(arcpgu, ARCPGU_REG_START_SET, 1);
-
-	arc_pgu_set_pxl_fmt(arcpgu);
-
-	clk_set_rate(arcpgu->clk, m->crtc_clock * 1000);
-}
-
-static void arc_pgu_enable(struct drm_simple_display_pipe *pipe,
-			   struct drm_crtc_state *crtc_state,
-			   struct drm_plane_state *plane_state)
-{
-	struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
-
-	arc_pgu_mode_set(arcpgu);
-
-	clk_prepare_enable(arcpgu->clk);
-	arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
-		      arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) |
-		      ARCPGU_CTRL_ENABLE_MASK);
-}
-
-static void arc_pgu_disable(struct drm_simple_display_pipe *pipe)
-{
-	struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
-
-	clk_disable_unprepare(arcpgu->clk);
-	arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
-			      arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) &
-			      ~ARCPGU_CTRL_ENABLE_MASK);
-}
-
-static void arc_pgu_update(struct drm_simple_display_pipe *pipe,
-			   struct drm_plane_state *state)
-{
-	struct arcpgu_drm_private *arcpgu;
-	struct drm_gem_cma_object *gem;
-
-	if (!pipe->plane.state->fb)
-		return;
-
-	arcpgu = pipe_to_arcpgu_priv(pipe);
-	gem = drm_fb_cma_get_gem_obj(pipe->plane.state->fb, 0);
-	arc_pgu_write(arcpgu, ARCPGU_REG_BUF0_ADDR, gem->paddr);
-}
-
-static const struct drm_simple_display_pipe_funcs arc_pgu_pipe_funcs = {
-	.update = arc_pgu_update,
-	.mode_valid = arc_pgu_mode_valid,
-	.enable	= arc_pgu_enable,
-	.disable = arc_pgu_disable,
-};
-
-static const struct drm_mode_config_funcs arcpgu_drm_modecfg_funcs = {
-	.fb_create  = drm_gem_fb_create,
-	.atomic_check = drm_atomic_helper_check,
-	.atomic_commit = drm_atomic_helper_commit,
-};
-
-DEFINE_DRM_GEM_CMA_FOPS(arcpgu_drm_ops);
-
-static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
-{
-	struct platform_device *pdev = to_platform_device(arcpgu->drm.dev);
-	struct device_node *encoder_node = NULL, *endpoint_node = NULL;
-	struct drm_connector *connector = NULL;
-	struct drm_device *drm = &arcpgu->drm;
-	struct resource *res;
-	int ret;
-
-	arcpgu->clk = devm_clk_get(drm->dev, "pxlclk");
-	if (IS_ERR(arcpgu->clk))
-		return PTR_ERR(arcpgu->clk);
-
-	ret = drmm_mode_config_init(drm);
-	if (ret)
-		return ret;
-
-	drm->mode_config.min_width = 0;
-	drm->mode_config.min_height = 0;
-	drm->mode_config.max_width = 1920;
-	drm->mode_config.max_height = 1080;
-	drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	arcpgu->regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(arcpgu->regs))
-		return PTR_ERR(arcpgu->regs);
-
-	dev_info(drm->dev, "arc_pgu ID: 0x%x\n",
-		 arc_pgu_read(arcpgu, ARCPGU_REG_ID));
-
-	/* Get the optional framebuffer memory resource */
-	ret = of_reserved_mem_device_init(drm->dev);
-	if (ret && ret != -ENODEV)
-		return ret;
-
-	if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)))
-		return -ENODEV;
-
-	/*
-	 * There is only one output port inside each device. It is linked with
-	 * encoder endpoint.
-	 */
-	endpoint_node = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
-	if (endpoint_node) {
-		encoder_node = of_graph_get_remote_port_parent(endpoint_node);
-		of_node_put(endpoint_node);
-	} else {
-		connector = &arcpgu->sim_conn;
-		dev_info(drm->dev, "no encoder found. Assumed virtual LCD on simulation platform\n");
-		ret = arcpgu_drm_sim_init(drm, connector);
-		if (ret < 0)
-			return ret;
-	}
-
-	ret = drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,
-					   arc_pgu_supported_formats,
-					   ARRAY_SIZE(arc_pgu_supported_formats),
-					   NULL, connector);
-	if (ret)
-		return ret;
-
-	if (encoder_node) {
-		struct drm_bridge *bridge;
-
-		/* Locate drm bridge from the hdmi encoder DT node */
-		bridge = of_drm_find_bridge(encoder_node);
-		if (!bridge)
-			return -EPROBE_DEFER;
-
-		ret = drm_simple_display_pipe_attach_bridge(&arcpgu->pipe, bridge);
-		if (ret)
-			return ret;
-	}
-
-	drm_mode_config_reset(drm);
-	drm_kms_helper_poll_init(drm);
-
-	platform_set_drvdata(pdev, drm);
-	return 0;
-}
-
-static int arcpgu_unload(struct drm_device *drm)
-{
-	drm_kms_helper_poll_fini(drm);
-	drm_atomic_helper_shutdown(drm);
-
-	return 0;
-}
-
-#ifdef CONFIG_DEBUG_FS
-static int arcpgu_show_pxlclock(struct seq_file *m, void *arg)
-{
-	struct drm_info_node *node = (struct drm_info_node *)m->private;
-	struct drm_device *drm = node->minor->dev;
-	struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
-	unsigned long clkrate = clk_get_rate(arcpgu->clk);
-	unsigned long mode_clock = arcpgu->pipe.crtc.mode.crtc_clock * 1000;
-
-	seq_printf(m, "hw  : %lu\n", clkrate);
-	seq_printf(m, "mode: %lu\n", mode_clock);
-	return 0;
-}
-
-static struct drm_info_list arcpgu_debugfs_list[] = {
-	{ "clocks", arcpgu_show_pxlclock, 0 },
-};
-
-static void arcpgu_debugfs_init(struct drm_minor *minor)
-{
-	drm_debugfs_create_files(arcpgu_debugfs_list,
-				 ARRAY_SIZE(arcpgu_debugfs_list),
-				 minor->debugfs_root, minor);
-}
-#endif
-
-static const struct drm_driver arcpgu_drm_driver = {
-	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
-	.name = "arcpgu",
-	.desc = "ARC PGU Controller",
-	.date = "20160219",
-	.major = 1,
-	.minor = 0,
-	.patchlevel = 0,
-	.fops = &arcpgu_drm_ops,
-	DRM_GEM_CMA_DRIVER_OPS,
-#ifdef CONFIG_DEBUG_FS
-	.debugfs_init = arcpgu_debugfs_init,
-#endif
-};
-
-static int arcpgu_probe(struct platform_device *pdev)
-{
-	struct arcpgu_drm_private *arcpgu;
-	int ret;
-
-	arcpgu = devm_drm_dev_alloc(&pdev->dev, &arcpgu_drm_driver,
-				    struct arcpgu_drm_private, drm);
-	if (IS_ERR(arcpgu))
-		return PTR_ERR(arcpgu);
-
-	ret = arcpgu_load(arcpgu);
-	if (ret)
-		return ret;
-
-	ret = drm_dev_register(&arcpgu->drm, 0);
-	if (ret)
-		goto err_unload;
-
-	drm_fbdev_generic_setup(&arcpgu->drm, 16);
-
-	return 0;
-
-err_unload:
-	arcpgu_unload(&arcpgu->drm);
-
-	return ret;
-}
-
-static int arcpgu_remove(struct platform_device *pdev)
-{
-	struct drm_device *drm = platform_get_drvdata(pdev);
-
-	drm_dev_unregister(drm);
-	arcpgu_unload(drm);
-
-	return 0;
-}
-
-static const struct of_device_id arcpgu_of_table[] = {
-	{.compatible = "snps,arcpgu"},
-	{}
-};
-
-MODULE_DEVICE_TABLE(of, arcpgu_of_table);
-
-static struct platform_driver arcpgu_platform_driver = {
-	.probe = arcpgu_probe,
-	.remove = arcpgu_remove,
-	.driver = {
-		   .name = "arcpgu",
-		   .of_match_table = arcpgu_of_table,
-		   },
-};
-
-module_platform_driver(arcpgu_platform_driver);
-
-MODULE_AUTHOR("Carlos Palminha <palminha@synopsys.com>");
-MODULE_DESCRIPTION("ARC PGU DRM driver");
-MODULE_LICENSE("GPL");