From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/gpu/drm/imx/imx-tve.c | 675 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 675 insertions(+)
 create mode 100644 drivers/gpu/drm/imx/imx-tve.c

(limited to 'drivers/gpu/drm/imx/imx-tve.c')

diff --git a/drivers/gpu/drm/imx/imx-tve.c b/drivers/gpu/drm/imx/imx-tve.c
new file mode 100644
index 000000000..ab4d1c878
--- /dev/null
+++ b/drivers/gpu/drm/imx/imx-tve.c
@@ -0,0 +1,675 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * i.MX drm driver - Television Encoder (TVEv2)
+ *
+ * Copyright (C) 2013 Philipp Zabel, Pengutronix
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/videodev2.h>
+
+#include <video/imx-ipu-v3.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
+
+#include "imx-drm.h"
+
+#define TVE_COM_CONF_REG	0x00
+#define TVE_TVDAC0_CONT_REG	0x28
+#define TVE_TVDAC1_CONT_REG	0x2c
+#define TVE_TVDAC2_CONT_REG	0x30
+#define TVE_CD_CONT_REG		0x34
+#define TVE_INT_CONT_REG	0x64
+#define TVE_STAT_REG		0x68
+#define TVE_TST_MODE_REG	0x6c
+#define TVE_MV_CONT_REG		0xdc
+
+/* TVE_COM_CONF_REG */
+#define TVE_SYNC_CH_2_EN	BIT(22)
+#define TVE_SYNC_CH_1_EN	BIT(21)
+#define TVE_SYNC_CH_0_EN	BIT(20)
+#define TVE_TV_OUT_MODE_MASK	(0x7 << 12)
+#define TVE_TV_OUT_DISABLE	(0x0 << 12)
+#define TVE_TV_OUT_CVBS_0	(0x1 << 12)
+#define TVE_TV_OUT_CVBS_2	(0x2 << 12)
+#define TVE_TV_OUT_CVBS_0_2	(0x3 << 12)
+#define TVE_TV_OUT_SVIDEO_0_1	(0x4 << 12)
+#define TVE_TV_OUT_SVIDEO_0_1_CVBS2_2	(0x5 << 12)
+#define TVE_TV_OUT_YPBPR	(0x6 << 12)
+#define TVE_TV_OUT_RGB		(0x7 << 12)
+#define TVE_TV_STAND_MASK	(0xf << 8)
+#define TVE_TV_STAND_HD_1080P30	(0xc << 8)
+#define TVE_P2I_CONV_EN		BIT(7)
+#define TVE_INP_VIDEO_FORM	BIT(6)
+#define TVE_INP_YCBCR_422	(0x0 << 6)
+#define TVE_INP_YCBCR_444	(0x1 << 6)
+#define TVE_DATA_SOURCE_MASK	(0x3 << 4)
+#define TVE_DATA_SOURCE_BUS1	(0x0 << 4)
+#define TVE_DATA_SOURCE_BUS2	(0x1 << 4)
+#define TVE_DATA_SOURCE_EXT	(0x2 << 4)
+#define TVE_DATA_SOURCE_TESTGEN	(0x3 << 4)
+#define TVE_IPU_CLK_EN_OFS	3
+#define TVE_IPU_CLK_EN		BIT(3)
+#define TVE_DAC_SAMP_RATE_OFS	1
+#define TVE_DAC_SAMP_RATE_WIDTH	2
+#define TVE_DAC_SAMP_RATE_MASK	(0x3 << 1)
+#define TVE_DAC_FULL_RATE	(0x0 << 1)
+#define TVE_DAC_DIV2_RATE	(0x1 << 1)
+#define TVE_DAC_DIV4_RATE	(0x2 << 1)
+#define TVE_EN			BIT(0)
+
+/* TVE_TVDACx_CONT_REG */
+#define TVE_TVDAC_GAIN_MASK	(0x3f << 0)
+
+/* TVE_CD_CONT_REG */
+#define TVE_CD_CH_2_SM_EN	BIT(22)
+#define TVE_CD_CH_1_SM_EN	BIT(21)
+#define TVE_CD_CH_0_SM_EN	BIT(20)
+#define TVE_CD_CH_2_LM_EN	BIT(18)
+#define TVE_CD_CH_1_LM_EN	BIT(17)
+#define TVE_CD_CH_0_LM_EN	BIT(16)
+#define TVE_CD_CH_2_REF_LVL	BIT(10)
+#define TVE_CD_CH_1_REF_LVL	BIT(9)
+#define TVE_CD_CH_0_REF_LVL	BIT(8)
+#define TVE_CD_EN		BIT(0)
+
+/* TVE_INT_CONT_REG */
+#define TVE_FRAME_END_IEN	BIT(13)
+#define TVE_CD_MON_END_IEN	BIT(2)
+#define TVE_CD_SM_IEN		BIT(1)
+#define TVE_CD_LM_IEN		BIT(0)
+
+/* TVE_TST_MODE_REG */
+#define TVE_TVDAC_TEST_MODE_MASK	(0x7 << 0)
+
+#define IMX_TVE_DAC_VOLTAGE	2750000
+
+enum {
+	TVE_MODE_TVOUT,
+	TVE_MODE_VGA,
+};
+
+struct imx_tve_encoder {
+	struct drm_connector connector;
+	struct drm_encoder encoder;
+	struct imx_tve *tve;
+};
+
+struct imx_tve {
+	struct device *dev;
+	int mode;
+	int di_hsync_pin;
+	int di_vsync_pin;
+
+	struct regmap *regmap;
+	struct regulator *dac_reg;
+	struct i2c_adapter *ddc;
+	struct clk *clk;
+	struct clk *di_sel_clk;
+	struct clk_hw clk_hw_di;
+	struct clk *di_clk;
+};
+
+static inline struct imx_tve *con_to_tve(struct drm_connector *c)
+{
+	return container_of(c, struct imx_tve_encoder, connector)->tve;
+}
+
+static inline struct imx_tve *enc_to_tve(struct drm_encoder *e)
+{
+	return container_of(e, struct imx_tve_encoder, encoder)->tve;
+}
+
+static void tve_enable(struct imx_tve *tve)
+{
+	clk_prepare_enable(tve->clk);
+	regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, TVE_EN, TVE_EN);
+
+	/* clear interrupt status register */
+	regmap_write(tve->regmap, TVE_STAT_REG, 0xffffffff);
+
+	/* cable detection irq disabled in VGA mode, enabled in TVOUT mode */
+	if (tve->mode == TVE_MODE_VGA)
+		regmap_write(tve->regmap, TVE_INT_CONT_REG, 0);
+	else
+		regmap_write(tve->regmap, TVE_INT_CONT_REG,
+			     TVE_CD_SM_IEN |
+			     TVE_CD_LM_IEN |
+			     TVE_CD_MON_END_IEN);
+}
+
+static void tve_disable(struct imx_tve *tve)
+{
+	regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, TVE_EN, 0);
+	clk_disable_unprepare(tve->clk);
+}
+
+static int tve_setup_tvout(struct imx_tve *tve)
+{
+	return -ENOTSUPP;
+}
+
+static int tve_setup_vga(struct imx_tve *tve)
+{
+	unsigned int mask;
+	unsigned int val;
+	int ret;
+
+	/* set gain to (1 + 10/128) to provide 0.7V peak-to-peak amplitude */
+	ret = regmap_update_bits(tve->regmap, TVE_TVDAC0_CONT_REG,
+				 TVE_TVDAC_GAIN_MASK, 0x0a);
+	if (ret)
+		return ret;
+
+	ret = regmap_update_bits(tve->regmap, TVE_TVDAC1_CONT_REG,
+				 TVE_TVDAC_GAIN_MASK, 0x0a);
+	if (ret)
+		return ret;
+
+	ret = regmap_update_bits(tve->regmap, TVE_TVDAC2_CONT_REG,
+				 TVE_TVDAC_GAIN_MASK, 0x0a);
+	if (ret)
+		return ret;
+
+	/* set configuration register */
+	mask = TVE_DATA_SOURCE_MASK | TVE_INP_VIDEO_FORM;
+	val  = TVE_DATA_SOURCE_BUS2 | TVE_INP_YCBCR_444;
+	mask |= TVE_TV_STAND_MASK       | TVE_P2I_CONV_EN;
+	val  |= TVE_TV_STAND_HD_1080P30 | 0;
+	mask |= TVE_TV_OUT_MODE_MASK | TVE_SYNC_CH_0_EN;
+	val  |= TVE_TV_OUT_RGB       | TVE_SYNC_CH_0_EN;
+	ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, mask, val);
+	if (ret)
+		return ret;
+
+	/* set test mode (as documented) */
+	return regmap_update_bits(tve->regmap, TVE_TST_MODE_REG,
+				 TVE_TVDAC_TEST_MODE_MASK, 1);
+}
+
+static int imx_tve_connector_get_modes(struct drm_connector *connector)
+{
+	struct imx_tve *tve = con_to_tve(connector);
+	struct edid *edid;
+	int ret = 0;
+
+	if (!tve->ddc)
+		return 0;
+
+	edid = drm_get_edid(connector, tve->ddc);
+	if (edid) {
+		drm_connector_update_edid_property(connector, edid);
+		ret = drm_add_edid_modes(connector, edid);
+		kfree(edid);
+	}
+
+	return ret;
+}
+
+static enum drm_mode_status
+imx_tve_connector_mode_valid(struct drm_connector *connector,
+			     struct drm_display_mode *mode)
+{
+	struct imx_tve *tve = con_to_tve(connector);
+	unsigned long rate;
+
+	/* pixel clock with 2x oversampling */
+	rate = clk_round_rate(tve->clk, 2000UL * mode->clock) / 2000;
+	if (rate == mode->clock)
+		return MODE_OK;
+
+	/* pixel clock without oversampling */
+	rate = clk_round_rate(tve->clk, 1000UL * mode->clock) / 1000;
+	if (rate == mode->clock)
+		return MODE_OK;
+
+	dev_warn(tve->dev, "ignoring mode %dx%d\n",
+		 mode->hdisplay, mode->vdisplay);
+
+	return MODE_BAD;
+}
+
+static void imx_tve_encoder_mode_set(struct drm_encoder *encoder,
+				     struct drm_display_mode *orig_mode,
+				     struct drm_display_mode *mode)
+{
+	struct imx_tve *tve = enc_to_tve(encoder);
+	unsigned long rounded_rate;
+	unsigned long rate;
+	int div = 1;
+	int ret;
+
+	/*
+	 * FIXME
+	 * we should try 4k * mode->clock first,
+	 * and enable 4x oversampling for lower resolutions
+	 */
+	rate = 2000UL * mode->clock;
+	clk_set_rate(tve->clk, rate);
+	rounded_rate = clk_get_rate(tve->clk);
+	if (rounded_rate >= rate)
+		div = 2;
+	clk_set_rate(tve->di_clk, rounded_rate / div);
+
+	ret = clk_set_parent(tve->di_sel_clk, tve->di_clk);
+	if (ret < 0) {
+		dev_err(tve->dev, "failed to set di_sel parent to tve_di: %d\n",
+			ret);
+	}
+
+	regmap_update_bits(tve->regmap, TVE_COM_CONF_REG,
+			   TVE_IPU_CLK_EN, TVE_IPU_CLK_EN);
+
+	if (tve->mode == TVE_MODE_VGA)
+		ret = tve_setup_vga(tve);
+	else
+		ret = tve_setup_tvout(tve);
+	if (ret)
+		dev_err(tve->dev, "failed to set configuration: %d\n", ret);
+}
+
+static void imx_tve_encoder_enable(struct drm_encoder *encoder)
+{
+	struct imx_tve *tve = enc_to_tve(encoder);
+
+	tve_enable(tve);
+}
+
+static void imx_tve_encoder_disable(struct drm_encoder *encoder)
+{
+	struct imx_tve *tve = enc_to_tve(encoder);
+
+	tve_disable(tve);
+}
+
+static int imx_tve_atomic_check(struct drm_encoder *encoder,
+				struct drm_crtc_state *crtc_state,
+				struct drm_connector_state *conn_state)
+{
+	struct imx_crtc_state *imx_crtc_state = to_imx_crtc_state(crtc_state);
+	struct imx_tve *tve = enc_to_tve(encoder);
+
+	imx_crtc_state->bus_format = MEDIA_BUS_FMT_GBR888_1X24;
+	imx_crtc_state->di_hsync_pin = tve->di_hsync_pin;
+	imx_crtc_state->di_vsync_pin = tve->di_vsync_pin;
+
+	return 0;
+}
+
+static const struct drm_connector_funcs imx_tve_connector_funcs = {
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = imx_drm_connector_destroy,
+	.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 const struct drm_connector_helper_funcs imx_tve_connector_helper_funcs = {
+	.get_modes = imx_tve_connector_get_modes,
+	.mode_valid = imx_tve_connector_mode_valid,
+};
+
+static const struct drm_encoder_helper_funcs imx_tve_encoder_helper_funcs = {
+	.mode_set = imx_tve_encoder_mode_set,
+	.enable = imx_tve_encoder_enable,
+	.disable = imx_tve_encoder_disable,
+	.atomic_check = imx_tve_atomic_check,
+};
+
+static irqreturn_t imx_tve_irq_handler(int irq, void *data)
+{
+	struct imx_tve *tve = data;
+	unsigned int val;
+
+	regmap_read(tve->regmap, TVE_STAT_REG, &val);
+
+	/* clear interrupt status register */
+	regmap_write(tve->regmap, TVE_STAT_REG, 0xffffffff);
+
+	return IRQ_HANDLED;
+}
+
+static unsigned long clk_tve_di_recalc_rate(struct clk_hw *hw,
+					    unsigned long parent_rate)
+{
+	struct imx_tve *tve = container_of(hw, struct imx_tve, clk_hw_di);
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(tve->regmap, TVE_COM_CONF_REG, &val);
+	if (ret < 0)
+		return 0;
+
+	switch (val & TVE_DAC_SAMP_RATE_MASK) {
+	case TVE_DAC_DIV4_RATE:
+		return parent_rate / 4;
+	case TVE_DAC_DIV2_RATE:
+		return parent_rate / 2;
+	case TVE_DAC_FULL_RATE:
+	default:
+		return parent_rate;
+	}
+
+	return 0;
+}
+
+static long clk_tve_di_round_rate(struct clk_hw *hw, unsigned long rate,
+				  unsigned long *prate)
+{
+	unsigned long div;
+
+	div = *prate / rate;
+	if (div >= 4)
+		return *prate / 4;
+	else if (div >= 2)
+		return *prate / 2;
+	return *prate;
+}
+
+static int clk_tve_di_set_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long parent_rate)
+{
+	struct imx_tve *tve = container_of(hw, struct imx_tve, clk_hw_di);
+	unsigned long div;
+	u32 val;
+	int ret;
+
+	div = parent_rate / rate;
+	if (div >= 4)
+		val = TVE_DAC_DIV4_RATE;
+	else if (div >= 2)
+		val = TVE_DAC_DIV2_RATE;
+	else
+		val = TVE_DAC_FULL_RATE;
+
+	ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG,
+				 TVE_DAC_SAMP_RATE_MASK, val);
+
+	if (ret < 0) {
+		dev_err(tve->dev, "failed to set divider: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct clk_ops clk_tve_di_ops = {
+	.round_rate = clk_tve_di_round_rate,
+	.set_rate = clk_tve_di_set_rate,
+	.recalc_rate = clk_tve_di_recalc_rate,
+};
+
+static int tve_clk_init(struct imx_tve *tve, void __iomem *base)
+{
+	const char *tve_di_parent[1];
+	struct clk_init_data init = {
+		.name = "tve_di",
+		.ops = &clk_tve_di_ops,
+		.num_parents = 1,
+		.flags = 0,
+	};
+
+	tve_di_parent[0] = __clk_get_name(tve->clk);
+	init.parent_names = (const char **)&tve_di_parent;
+
+	tve->clk_hw_di.init = &init;
+	tve->di_clk = devm_clk_register(tve->dev, &tve->clk_hw_di);
+	if (IS_ERR(tve->di_clk)) {
+		dev_err(tve->dev, "failed to register TVE output clock: %ld\n",
+			PTR_ERR(tve->di_clk));
+		return PTR_ERR(tve->di_clk);
+	}
+
+	return 0;
+}
+
+static void imx_tve_disable_regulator(void *data)
+{
+	struct imx_tve *tve = data;
+
+	regulator_disable(tve->dac_reg);
+}
+
+static bool imx_tve_readable_reg(struct device *dev, unsigned int reg)
+{
+	return (reg % 4 == 0) && (reg <= 0xdc);
+}
+
+static struct regmap_config tve_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+
+	.readable_reg = imx_tve_readable_reg,
+
+	.fast_io = true,
+
+	.max_register = 0xdc,
+};
+
+static const char * const imx_tve_modes[] = {
+	[TVE_MODE_TVOUT]  = "tvout",
+	[TVE_MODE_VGA] = "vga",
+};
+
+static int of_get_tve_mode(struct device_node *np)
+{
+	const char *bm;
+	int ret, i;
+
+	ret = of_property_read_string(np, "fsl,tve-mode", &bm);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(imx_tve_modes); i++)
+		if (!strcasecmp(bm, imx_tve_modes[i]))
+			return i;
+
+	return -EINVAL;
+}
+
+static int imx_tve_bind(struct device *dev, struct device *master, void *data)
+{
+	struct drm_device *drm = data;
+	struct imx_tve *tve = dev_get_drvdata(dev);
+	struct imx_tve_encoder *tvee;
+	struct drm_encoder *encoder;
+	struct drm_connector *connector;
+	int encoder_type;
+	int ret;
+
+	encoder_type = tve->mode == TVE_MODE_VGA ?
+		       DRM_MODE_ENCODER_DAC : DRM_MODE_ENCODER_TVDAC;
+
+	tvee = drmm_simple_encoder_alloc(drm, struct imx_tve_encoder, encoder,
+					 encoder_type);
+	if (IS_ERR(tvee))
+		return PTR_ERR(tvee);
+
+	tvee->tve = tve;
+	encoder = &tvee->encoder;
+	connector = &tvee->connector;
+
+	ret = imx_drm_encoder_parse_of(drm, encoder, tve->dev->of_node);
+	if (ret)
+		return ret;
+
+	drm_encoder_helper_add(encoder, &imx_tve_encoder_helper_funcs);
+
+	drm_connector_helper_add(connector, &imx_tve_connector_helper_funcs);
+	ret = drm_connector_init_with_ddc(drm, connector,
+					  &imx_tve_connector_funcs,
+					  DRM_MODE_CONNECTOR_VGA, tve->ddc);
+	if (ret)
+		return ret;
+
+	return drm_connector_attach_encoder(connector, encoder);
+}
+
+static const struct component_ops imx_tve_ops = {
+	.bind	= imx_tve_bind,
+};
+
+static int imx_tve_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct device_node *ddc_node;
+	struct imx_tve *tve;
+	void __iomem *base;
+	unsigned int val;
+	int irq;
+	int ret;
+
+	tve = devm_kzalloc(dev, sizeof(*tve), GFP_KERNEL);
+	if (!tve)
+		return -ENOMEM;
+
+	tve->dev = dev;
+
+	ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
+	if (ddc_node) {
+		tve->ddc = of_find_i2c_adapter_by_node(ddc_node);
+		of_node_put(ddc_node);
+	}
+
+	tve->mode = of_get_tve_mode(np);
+	if (tve->mode != TVE_MODE_VGA) {
+		dev_err(dev, "only VGA mode supported, currently\n");
+		return -EINVAL;
+	}
+
+	if (tve->mode == TVE_MODE_VGA) {
+		ret = of_property_read_u32(np, "fsl,hsync-pin",
+					   &tve->di_hsync_pin);
+
+		if (ret < 0) {
+			dev_err(dev, "failed to get hsync pin\n");
+			return ret;
+		}
+
+		ret = of_property_read_u32(np, "fsl,vsync-pin",
+					   &tve->di_vsync_pin);
+
+		if (ret < 0) {
+			dev_err(dev, "failed to get vsync pin\n");
+			return ret;
+		}
+	}
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	tve_regmap_config.lock_arg = tve;
+	tve->regmap = devm_regmap_init_mmio_clk(dev, "tve", base,
+						&tve_regmap_config);
+	if (IS_ERR(tve->regmap)) {
+		dev_err(dev, "failed to init regmap: %ld\n",
+			PTR_ERR(tve->regmap));
+		return PTR_ERR(tve->regmap);
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_threaded_irq(dev, irq, NULL,
+					imx_tve_irq_handler, IRQF_ONESHOT,
+					"imx-tve", tve);
+	if (ret < 0) {
+		dev_err(dev, "failed to request irq: %d\n", ret);
+		return ret;
+	}
+
+	tve->dac_reg = devm_regulator_get(dev, "dac");
+	if (!IS_ERR(tve->dac_reg)) {
+		if (regulator_get_voltage(tve->dac_reg) != IMX_TVE_DAC_VOLTAGE)
+			dev_warn(dev, "dac voltage is not %d uV\n", IMX_TVE_DAC_VOLTAGE);
+		ret = regulator_enable(tve->dac_reg);
+		if (ret)
+			return ret;
+		ret = devm_add_action_or_reset(dev, imx_tve_disable_regulator, tve);
+		if (ret)
+			return ret;
+	}
+
+	tve->clk = devm_clk_get(dev, "tve");
+	if (IS_ERR(tve->clk)) {
+		dev_err(dev, "failed to get high speed tve clock: %ld\n",
+			PTR_ERR(tve->clk));
+		return PTR_ERR(tve->clk);
+	}
+
+	/* this is the IPU DI clock input selector, can be parented to tve_di */
+	tve->di_sel_clk = devm_clk_get(dev, "di_sel");
+	if (IS_ERR(tve->di_sel_clk)) {
+		dev_err(dev, "failed to get ipu di mux clock: %ld\n",
+			PTR_ERR(tve->di_sel_clk));
+		return PTR_ERR(tve->di_sel_clk);
+	}
+
+	ret = tve_clk_init(tve, base);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_read(tve->regmap, TVE_COM_CONF_REG, &val);
+	if (ret < 0) {
+		dev_err(dev, "failed to read configuration register: %d\n",
+			ret);
+		return ret;
+	}
+	if (val != 0x00100000) {
+		dev_err(dev, "configuration register default value indicates this is not a TVEv2\n");
+		return -ENODEV;
+	}
+
+	/* disable cable detection for VGA mode */
+	ret = regmap_write(tve->regmap, TVE_CD_CONT_REG, 0);
+	if (ret)
+		return ret;
+
+	platform_set_drvdata(pdev, tve);
+
+	return component_add(dev, &imx_tve_ops);
+}
+
+static int imx_tve_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &imx_tve_ops);
+	return 0;
+}
+
+static const struct of_device_id imx_tve_dt_ids[] = {
+	{ .compatible = "fsl,imx53-tve", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_tve_dt_ids);
+
+static struct platform_driver imx_tve_driver = {
+	.probe		= imx_tve_probe,
+	.remove		= imx_tve_remove,
+	.driver		= {
+		.of_match_table = imx_tve_dt_ids,
+		.name	= "imx-tve",
+	},
+};
+
+module_platform_driver(imx_tve_driver);
+
+MODULE_DESCRIPTION("i.MX Television Encoder driver");
+MODULE_AUTHOR("Philipp Zabel, Pengutronix");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:imx-tve");
-- 
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