drm: zte: remove obsolete DRM Support for ZTE SoCs

Commit 89d4f98ae90d ("ARM: remove zte zx platform") removes the config
ARCH_ZX. So, since then, the DRM Support for ZTE SoCs (config DRM_ZTE)
depends on this removed config ARCH_ZX and cannot be selected.

Fortunately, ./scripts/checkkconfigsymbols.py detects this and warns:

ARCH_ZX
Referencing files: drivers/gpu/drm/zte/Kconfig

So, remove this obsolete DRM support.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210819112253.16484-5-lukas.bulwahn@gmail.com

1 files changed, 0 insertions, 400 deletions

diff --git a/drivers/gpu/drm/zte/zx_tvenc.c b/drivers/gpu/drm/zte/zx_tvenc.c
deleted file mode 100644
index d8a89ba383bc..000000000000
--- a/drivers/gpu/drm/zte/zx_tvenc.c
+++ /dev/null
@@ -1,400 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2017 Linaro Ltd.
- * Copyright 2017 ZTE Corporation.
- */
-
-#include <linux/clk.h>
-#include <linux/component.h>
-#include <linux/mfd/syscon.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/regmap.h>
-
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_print.h>
-#include <drm/drm_probe_helper.h>
-#include <drm/drm_simple_kms_helper.h>
-
-#include "zx_drm_drv.h"
-#include "zx_tvenc_regs.h"
-#include "zx_vou.h"
-
-struct zx_tvenc_pwrctrl {
-	struct regmap *regmap;
-	u32 reg;
-	u32 mask;
-};
-
-struct zx_tvenc {
-	struct drm_connector connector;
-	struct drm_encoder encoder;
-	struct device *dev;
-	void __iomem *mmio;
-	const struct vou_inf *inf;
-	struct zx_tvenc_pwrctrl pwrctrl;
-};
-
-#define to_zx_tvenc(x) container_of(x, struct zx_tvenc, x)
-
-struct zx_tvenc_mode {
-	struct drm_display_mode mode;
-	u32 video_info;
-	u32 video_res;
-	u32 field1_param;
-	u32 field2_param;
-	u32 burst_line_odd1;
-	u32 burst_line_even1;
-	u32 burst_line_odd2;
-	u32 burst_line_even2;
-	u32 line_timing_param;
-	u32 weight_value;
-	u32 blank_black_level;
-	u32 burst_level;
-	u32 control_param;
-	u32 sub_carrier_phase1;
-	u32 phase_line_incr_cvbs;
-};
-
-/*
- * The CRM cannot directly provide a suitable frequency, and we have to
- * ask a multiplied rate from CRM and use the divider in VOU to get the
- * desired one.
- */
-#define TVENC_CLOCK_MULTIPLIER	4
-
-static const struct zx_tvenc_mode tvenc_mode_pal = {
-	.mode = {
-		.clock = 13500 * TVENC_CLOCK_MULTIPLIER,
-		.hdisplay = 720,
-		.hsync_start = 720 + 12,
-		.hsync_end = 720 + 12 + 2,
-		.htotal = 720 + 12 + 2 + 130,
-		.vdisplay = 576,
-		.vsync_start = 576 + 2,
-		.vsync_end = 576 + 2 + 2,
-		.vtotal = 576 + 2 + 2 + 20,
-		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
-			 DRM_MODE_FLAG_INTERLACE,
-	},
-	.video_info = 0x00040040,
-	.video_res = 0x05a9c760,
-	.field1_param = 0x0004d416,
-	.field2_param = 0x0009b94f,
-	.burst_line_odd1 = 0x0004d406,
-	.burst_line_even1 = 0x0009b53e,
-	.burst_line_odd2 = 0x0004d805,
-	.burst_line_even2 = 0x0009b93f,
-	.line_timing_param = 0x06a96fdf,
-	.weight_value = 0x00c188a0,
-	.blank_black_level = 0x0000fcfc,
-	.burst_level = 0x00001595,
-	.control_param = 0x00000001,
-	.sub_carrier_phase1 = 0x1504c566,
-	.phase_line_incr_cvbs = 0xc068db8c,
-};
-
-static const struct zx_tvenc_mode tvenc_mode_ntsc = {
-	.mode = {
-		.clock = 13500 * TVENC_CLOCK_MULTIPLIER,
-		.hdisplay = 720,
-		.hsync_start = 720 + 16,
-		.hsync_end = 720 + 16 + 2,
-		.htotal = 720 + 16 + 2 + 120,
-		.vdisplay = 480,
-		.vsync_start = 480 + 3,
-		.vsync_end = 480 + 3 + 2,
-		.vtotal = 480 + 3 + 2 + 17,
-		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
-			 DRM_MODE_FLAG_INTERLACE,
-	},
-	.video_info = 0x00040080,
-	.video_res = 0x05a8375a,
-	.field1_param = 0x00041817,
-	.field2_param = 0x0008351e,
-	.burst_line_odd1 = 0x00041006,
-	.burst_line_even1 = 0x0008290d,
-	.burst_line_odd2 = 0x00000000,
-	.burst_line_even2 = 0x00000000,
-	.line_timing_param = 0x06a8ef9e,
-	.weight_value = 0x00b68197,
-	.blank_black_level = 0x0000f0f0,
-	.burst_level = 0x0000009c,
-	.control_param = 0x00000001,
-	.sub_carrier_phase1 = 0x10f83e10,
-	.phase_line_incr_cvbs = 0x80000000,
-};
-
-static const struct zx_tvenc_mode *tvenc_modes[] = {
-	&tvenc_mode_pal,
-	&tvenc_mode_ntsc,
-};
-
-static const struct zx_tvenc_mode *
-zx_tvenc_find_zmode(struct drm_display_mode *mode)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(tvenc_modes); i++) {
-		const struct zx_tvenc_mode *zmode = tvenc_modes[i];
-
-		if (drm_mode_equal(mode, &zmode->mode))
-			return zmode;
-	}
-
-	return NULL;
-}
-
-static void zx_tvenc_encoder_mode_set(struct drm_encoder *encoder,
-				      struct drm_display_mode *mode,
-				      struct drm_display_mode *adj_mode)
-{
-	struct zx_tvenc *tvenc = to_zx_tvenc(encoder);
-	const struct zx_tvenc_mode *zmode;
-	struct vou_div_config configs[] = {
-		{ VOU_DIV_INF,   VOU_DIV_4 },
-		{ VOU_DIV_TVENC, VOU_DIV_1 },
-		{ VOU_DIV_LAYER, VOU_DIV_2 },
-	};
-
-	zx_vou_config_dividers(encoder->crtc, configs, ARRAY_SIZE(configs));
-
-	zmode = zx_tvenc_find_zmode(mode);
-	if (!zmode) {
-		DRM_DEV_ERROR(tvenc->dev, "failed to find zmode\n");
-		return;
-	}
-
-	zx_writel(tvenc->mmio + VENC_VIDEO_INFO, zmode->video_info);
-	zx_writel(tvenc->mmio + VENC_VIDEO_RES, zmode->video_res);
-	zx_writel(tvenc->mmio + VENC_FIELD1_PARAM, zmode->field1_param);
-	zx_writel(tvenc->mmio + VENC_FIELD2_PARAM, zmode->field2_param);
-	zx_writel(tvenc->mmio + VENC_LINE_O_1, zmode->burst_line_odd1);
-	zx_writel(tvenc->mmio + VENC_LINE_E_1, zmode->burst_line_even1);
-	zx_writel(tvenc->mmio + VENC_LINE_O_2, zmode->burst_line_odd2);
-	zx_writel(tvenc->mmio + VENC_LINE_E_2, zmode->burst_line_even2);
-	zx_writel(tvenc->mmio + VENC_LINE_TIMING_PARAM,
-		  zmode->line_timing_param);
-	zx_writel(tvenc->mmio + VENC_WEIGHT_VALUE, zmode->weight_value);
-	zx_writel(tvenc->mmio + VENC_BLANK_BLACK_LEVEL,
-		  zmode->blank_black_level);
-	zx_writel(tvenc->mmio + VENC_BURST_LEVEL, zmode->burst_level);
-	zx_writel(tvenc->mmio + VENC_CONTROL_PARAM, zmode->control_param);
-	zx_writel(tvenc->mmio + VENC_SUB_CARRIER_PHASE1,
-		  zmode->sub_carrier_phase1);
-	zx_writel(tvenc->mmio + VENC_PHASE_LINE_INCR_CVBS,
-		  zmode->phase_line_incr_cvbs);
-}
-
-static void zx_tvenc_encoder_enable(struct drm_encoder *encoder)
-{
-	struct zx_tvenc *tvenc = to_zx_tvenc(encoder);
-	struct zx_tvenc_pwrctrl *pwrctrl = &tvenc->pwrctrl;
-
-	/* Set bit to power up TVENC DAC */
-	regmap_update_bits(pwrctrl->regmap, pwrctrl->reg, pwrctrl->mask,
-			   pwrctrl->mask);
-
-	vou_inf_enable(VOU_TV_ENC, encoder->crtc);
-
-	zx_writel(tvenc->mmio + VENC_ENABLE, 1);
-}
-
-static void zx_tvenc_encoder_disable(struct drm_encoder *encoder)
-{
-	struct zx_tvenc *tvenc = to_zx_tvenc(encoder);
-	struct zx_tvenc_pwrctrl *pwrctrl = &tvenc->pwrctrl;
-
-	zx_writel(tvenc->mmio + VENC_ENABLE, 0);
-
-	vou_inf_disable(VOU_TV_ENC, encoder->crtc);
-
-	/* Clear bit to power down TVENC DAC */
-	regmap_update_bits(pwrctrl->regmap, pwrctrl->reg, pwrctrl->mask, 0);
-}
-
-static const struct drm_encoder_helper_funcs zx_tvenc_encoder_helper_funcs = {
-	.enable	= zx_tvenc_encoder_enable,
-	.disable = zx_tvenc_encoder_disable,
-	.mode_set = zx_tvenc_encoder_mode_set,
-};
-
-static int zx_tvenc_connector_get_modes(struct drm_connector *connector)
-{
-	struct zx_tvenc *tvenc = to_zx_tvenc(connector);
-	struct device *dev = tvenc->dev;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(tvenc_modes); i++) {
-		const struct zx_tvenc_mode *zmode = tvenc_modes[i];
-		struct drm_display_mode *mode;
-
-		mode = drm_mode_duplicate(connector->dev, &zmode->mode);
-		if (!mode) {
-			DRM_DEV_ERROR(dev, "failed to duplicate drm mode\n");
-			continue;
-		}
-
-		drm_mode_set_name(mode);
-		drm_mode_probed_add(connector, mode);
-	}
-
-	return i;
-}
-
-static enum drm_mode_status
-zx_tvenc_connector_mode_valid(struct drm_connector *connector,
-			      struct drm_display_mode *mode)
-{
-	struct zx_tvenc *tvenc = to_zx_tvenc(connector);
-	const struct zx_tvenc_mode *zmode;
-
-	zmode = zx_tvenc_find_zmode(mode);
-	if (!zmode) {
-		DRM_DEV_ERROR(tvenc->dev, "unsupported mode: %s\n", mode->name);
-		return MODE_NOMODE;
-	}
-
-	return MODE_OK;
-}
-
-static struct drm_connector_helper_funcs zx_tvenc_connector_helper_funcs = {
-	.get_modes = zx_tvenc_connector_get_modes,
-	.mode_valid = zx_tvenc_connector_mode_valid,
-};
-
-static const struct drm_connector_funcs zx_tvenc_connector_funcs = {
-	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = drm_connector_cleanup,
-	.reset = drm_atomic_helper_connector_reset,
-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-static int zx_tvenc_register(struct drm_device *drm, struct zx_tvenc *tvenc)
-{
-	struct drm_encoder *encoder = &tvenc->encoder;
-	struct drm_connector *connector = &tvenc->connector;
-
-	/*
-	 * The tvenc is designed to use aux channel, as there is a deflicker
-	 * block for the channel.
-	 */
-	encoder->possible_crtcs = BIT(1);
-
-	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TVDAC);
-	drm_encoder_helper_add(encoder, &zx_tvenc_encoder_helper_funcs);
-
-	connector->interlace_allowed = true;
-
-	drm_connector_init(drm, connector, &zx_tvenc_connector_funcs,
-			   DRM_MODE_CONNECTOR_Composite);
-	drm_connector_helper_add(connector, &zx_tvenc_connector_helper_funcs);
-
-	drm_connector_attach_encoder(connector, encoder);
-
-	return 0;
-}
-
-static int zx_tvenc_pwrctrl_init(struct zx_tvenc *tvenc)
-{
-	struct zx_tvenc_pwrctrl *pwrctrl = &tvenc->pwrctrl;
-	struct device *dev = tvenc->dev;
-	struct of_phandle_args out_args;
-	struct regmap *regmap;
-	int ret;
-
-	ret = of_parse_phandle_with_fixed_args(dev->of_node,
-				"zte,tvenc-power-control", 2, 0, &out_args);
-	if (ret)
-		return ret;
-
-	regmap = syscon_node_to_regmap(out_args.np);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		goto out;
-	}
-
-	pwrctrl->regmap = regmap;
-	pwrctrl->reg = out_args.args[0];
-	pwrctrl->mask = out_args.args[1];
-
-out:
-	of_node_put(out_args.np);
-	return ret;
-}
-
-static int zx_tvenc_bind(struct device *dev, struct device *master, void *data)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct drm_device *drm = data;
-	struct resource *res;
-	struct zx_tvenc *tvenc;
-	int ret;
-
-	tvenc = devm_kzalloc(dev, sizeof(*tvenc), GFP_KERNEL);
-	if (!tvenc)
-		return -ENOMEM;
-
-	tvenc->dev = dev;
-	dev_set_drvdata(dev, tvenc);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	tvenc->mmio = devm_ioremap_resource(dev, res);
-	if (IS_ERR(tvenc->mmio)) {
-		ret = PTR_ERR(tvenc->mmio);
-		DRM_DEV_ERROR(dev, "failed to remap tvenc region: %d\n", ret);
-		return ret;
-	}
-
-	ret = zx_tvenc_pwrctrl_init(tvenc);
-	if (ret) {
-		DRM_DEV_ERROR(dev, "failed to init power control: %d\n", ret);
-		return ret;
-	}
-
-	ret = zx_tvenc_register(drm, tvenc);
-	if (ret) {
-		DRM_DEV_ERROR(dev, "failed to register tvenc: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
-}
-
-static void zx_tvenc_unbind(struct device *dev, struct device *master,
-			    void *data)
-{
-	/* Nothing to do */
-}
-
-static const struct component_ops zx_tvenc_component_ops = {
-	.bind = zx_tvenc_bind,
-	.unbind = zx_tvenc_unbind,
-};
-
-static int zx_tvenc_probe(struct platform_device *pdev)
-{
-	return component_add(&pdev->dev, &zx_tvenc_component_ops);
-}
-
-static int zx_tvenc_remove(struct platform_device *pdev)
-{
-	component_del(&pdev->dev, &zx_tvenc_component_ops);
-	return 0;
-}
-
-static const struct of_device_id zx_tvenc_of_match[] = {
-	{ .compatible = "zte,zx296718-tvenc", },
-	{ /* end */ },
-};
-MODULE_DEVICE_TABLE(of, zx_tvenc_of_match);
-
-struct platform_driver zx_tvenc_driver = {
-	.probe = zx_tvenc_probe,
-	.remove = zx_tvenc_remove,
-	.driver	= {
-		.name = "zx-tvenc",
-		.of_match_table	= zx_tvenc_of_match,
-	},
-};