1 files changed, 0 insertions, 466 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
deleted file mode 100644
index 07b4cb877d82..000000000000
--- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
+++ /dev/null
@@ -1,466 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2013 Red Hat
- * Author: Rob Clark <robdclark@gmail.com>
- */
-
-#include <linux/gpio.h>
-#include <linux/pinctrl/consumer.h>
-
-#include "msm_kms.h"
-#include "hdmi.h"
-
-struct hdmi_connector {
-	struct drm_connector base;
-	struct hdmi *hdmi;
-	struct work_struct hpd_work;
-};
-#define to_hdmi_connector(x) container_of(x, struct hdmi_connector, base)
-
-static void msm_hdmi_phy_reset(struct hdmi *hdmi)
-{
-	unsigned int val;
-
-	val = hdmi_read(hdmi, REG_HDMI_PHY_CTRL);
-
-	if (val & HDMI_PHY_CTRL_SW_RESET_LOW) {
-		/* pull low */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val & ~HDMI_PHY_CTRL_SW_RESET);
-	} else {
-		/* pull high */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val | HDMI_PHY_CTRL_SW_RESET);
-	}
-
-	if (val & HDMI_PHY_CTRL_SW_RESET_PLL_LOW) {
-		/* pull low */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val & ~HDMI_PHY_CTRL_SW_RESET_PLL);
-	} else {
-		/* pull high */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val | HDMI_PHY_CTRL_SW_RESET_PLL);
-	}
-
-	msleep(100);
-
-	if (val & HDMI_PHY_CTRL_SW_RESET_LOW) {
-		/* pull high */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val | HDMI_PHY_CTRL_SW_RESET);
-	} else {
-		/* pull low */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val & ~HDMI_PHY_CTRL_SW_RESET);
-	}
-
-	if (val & HDMI_PHY_CTRL_SW_RESET_PLL_LOW) {
-		/* pull high */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val | HDMI_PHY_CTRL_SW_RESET_PLL);
-	} else {
-		/* pull low */
-		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
-				val & ~HDMI_PHY_CTRL_SW_RESET_PLL);
-	}
-}
-
-static int gpio_config(struct hdmi *hdmi, bool on)
-{
-	struct device *dev = &hdmi->pdev->dev;
-	const struct hdmi_platform_config *config = hdmi->config;
-	int ret, i;
-
-	if (on) {
-		for (i = 0; i < HDMI_MAX_NUM_GPIO; i++) {
-			struct hdmi_gpio_data gpio = config->gpios[i];
-
-			if (gpio.num != -1) {
-				ret = gpio_request(gpio.num, gpio.label);
-				if (ret) {
-					DRM_DEV_ERROR(dev,
-						"'%s'(%d) gpio_request failed: %d\n",
-						gpio.label, gpio.num, ret);
-					goto err;
-				}
-
-				if (gpio.output) {
-					gpio_direction_output(gpio.num,
-							      gpio.value);
-				} else {
-					gpio_direction_input(gpio.num);
-					gpio_set_value_cansleep(gpio.num,
-								gpio.value);
-				}
-			}
-		}
-
-		DBG("gpio on");
-	} else {
-		for (i = 0; i < HDMI_MAX_NUM_GPIO; i++) {
-			struct hdmi_gpio_data gpio = config->gpios[i];
-
-			if (gpio.num == -1)
-				continue;
-
-			if (gpio.output) {
-				int value = gpio.value ? 0 : 1;
-
-				gpio_set_value_cansleep(gpio.num, value);
-			}
-
-			gpio_free(gpio.num);
-		};
-
-		DBG("gpio off");
-	}
-
-	return 0;
-err:
-	while (i--) {
-		if (config->gpios[i].num != -1)
-			gpio_free(config->gpios[i].num);
-	}
-
-	return ret;
-}
-
-static void enable_hpd_clocks(struct hdmi *hdmi, bool enable)
-{
-	const struct hdmi_platform_config *config = hdmi->config;
-	struct device *dev = &hdmi->pdev->dev;
-	int i, ret;
-
-	if (enable) {
-		for (i = 0; i < config->hpd_clk_cnt; i++) {
-			if (config->hpd_freq && config->hpd_freq[i]) {
-				ret = clk_set_rate(hdmi->hpd_clks[i],
-						   config->hpd_freq[i]);
-				if (ret)
-					dev_warn(dev,
-						 "failed to set clk %s (%d)\n",
-						 config->hpd_clk_names[i], ret);
-			}
-
-			ret = clk_prepare_enable(hdmi->hpd_clks[i]);
-			if (ret) {
-				DRM_DEV_ERROR(dev,
-					"failed to enable hpd clk: %s (%d)\n",
-					config->hpd_clk_names[i], ret);
-			}
-		}
-	} else {
-		for (i = config->hpd_clk_cnt - 1; i >= 0; i--)
-			clk_disable_unprepare(hdmi->hpd_clks[i]);
-	}
-}
-
-int msm_hdmi_hpd_enable(struct drm_connector *connector)
-{
-	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
-	struct hdmi *hdmi = hdmi_connector->hdmi;
-	const struct hdmi_platform_config *config = hdmi->config;
-	struct device *dev = &hdmi->pdev->dev;
-	uint32_t hpd_ctrl;
-	int i, ret;
-	unsigned long flags;
-
-	for (i = 0; i < config->hpd_reg_cnt; i++) {
-		ret = regulator_enable(hdmi->hpd_regs[i]);
-		if (ret) {
-			DRM_DEV_ERROR(dev, "failed to enable hpd regulator: %s (%d)\n",
-					config->hpd_reg_names[i], ret);
-			goto fail;
-		}
-	}
-
-	ret = pinctrl_pm_select_default_state(dev);
-	if (ret) {
-		DRM_DEV_ERROR(dev, "pinctrl state chg failed: %d\n", ret);
-		goto fail;
-	}
-
-	ret = gpio_config(hdmi, true);
-	if (ret) {
-		DRM_DEV_ERROR(dev, "failed to configure GPIOs: %d\n", ret);
-		goto fail;
-	}
-
-	pm_runtime_get_sync(dev);
-	enable_hpd_clocks(hdmi, true);
-
-	msm_hdmi_set_mode(hdmi, false);
-	msm_hdmi_phy_reset(hdmi);
-	msm_hdmi_set_mode(hdmi, true);
-
-	hdmi_write(hdmi, REG_HDMI_USEC_REFTIMER, 0x0001001b);
-
-	/* enable HPD events: */
-	hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL,
-			HDMI_HPD_INT_CTRL_INT_CONNECT |
-			HDMI_HPD_INT_CTRL_INT_EN);
-
-	/* set timeout to 4.1ms (max) for hardware debounce */
-	spin_lock_irqsave(&hdmi->reg_lock, flags);
-	hpd_ctrl = hdmi_read(hdmi, REG_HDMI_HPD_CTRL);
-	hpd_ctrl |= HDMI_HPD_CTRL_TIMEOUT(0x1fff);
-
-	/* Toggle HPD circuit to trigger HPD sense */
-	hdmi_write(hdmi, REG_HDMI_HPD_CTRL,
-			~HDMI_HPD_CTRL_ENABLE & hpd_ctrl);
-	hdmi_write(hdmi, REG_HDMI_HPD_CTRL,
-			HDMI_HPD_CTRL_ENABLE | hpd_ctrl);
-	spin_unlock_irqrestore(&hdmi->reg_lock, flags);
-
-	return 0;
-
-fail:
-	return ret;
-}
-
-static void hdp_disable(struct hdmi_connector *hdmi_connector)
-{
-	struct hdmi *hdmi = hdmi_connector->hdmi;
-	const struct hdmi_platform_config *config = hdmi->config;
-	struct device *dev = &hdmi->pdev->dev;
-	int i, ret = 0;
-
-	/* Disable HPD interrupt */
-	hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, 0);
-
-	msm_hdmi_set_mode(hdmi, false);
-
-	enable_hpd_clocks(hdmi, false);
-	pm_runtime_put_autosuspend(dev);
-
-	ret = gpio_config(hdmi, false);
-	if (ret)
-		dev_warn(dev, "failed to unconfigure GPIOs: %d\n", ret);
-
-	ret = pinctrl_pm_select_sleep_state(dev);
-	if (ret)
-		dev_warn(dev, "pinctrl state chg failed: %d\n", ret);
-
-	for (i = 0; i < config->hpd_reg_cnt; i++) {
-		ret = regulator_disable(hdmi->hpd_regs[i]);
-		if (ret)
-			dev_warn(dev, "failed to disable hpd regulator: %s (%d)\n",
-					config->hpd_reg_names[i], ret);
-	}
-}
-
-static void
-msm_hdmi_hotplug_work(struct work_struct *work)
-{
-	struct hdmi_connector *hdmi_connector =
-		container_of(work, struct hdmi_connector, hpd_work);
-	struct drm_connector *connector = &hdmi_connector->base;
-	drm_helper_hpd_irq_event(connector->dev);
-}
-
-void msm_hdmi_connector_irq(struct drm_connector *connector)
-{
-	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
-	struct hdmi *hdmi = hdmi_connector->hdmi;
-	uint32_t hpd_int_status, hpd_int_ctrl;
-
-	/* Process HPD: */
-	hpd_int_status = hdmi_read(hdmi, REG_HDMI_HPD_INT_STATUS);
-	hpd_int_ctrl   = hdmi_read(hdmi, REG_HDMI_HPD_INT_CTRL);
-
-	if ((hpd_int_ctrl & HDMI_HPD_INT_CTRL_INT_EN) &&
-			(hpd_int_status & HDMI_HPD_INT_STATUS_INT)) {
-		bool detected = !!(hpd_int_status & HDMI_HPD_INT_STATUS_CABLE_DETECTED);
-
-		/* ack & disable (temporarily) HPD events: */
-		hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL,
-			HDMI_HPD_INT_CTRL_INT_ACK);
-
-		DBG("status=%04x, ctrl=%04x", hpd_int_status, hpd_int_ctrl);
-
-		/* detect disconnect if we are connected or visa versa: */
-		hpd_int_ctrl = HDMI_HPD_INT_CTRL_INT_EN;
-		if (!detected)
-			hpd_int_ctrl |= HDMI_HPD_INT_CTRL_INT_CONNECT;
-		hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, hpd_int_ctrl);
-
-		queue_work(hdmi->workq, &hdmi_connector->hpd_work);
-	}
-}
-
-static enum drm_connector_status detect_reg(struct hdmi *hdmi)
-{
-	uint32_t hpd_int_status;
-
-	pm_runtime_get_sync(&hdmi->pdev->dev);
-	enable_hpd_clocks(hdmi, true);
-
-	hpd_int_status = hdmi_read(hdmi, REG_HDMI_HPD_INT_STATUS);
-
-	enable_hpd_clocks(hdmi, false);
-	pm_runtime_put_autosuspend(&hdmi->pdev->dev);
-
-	return (hpd_int_status & HDMI_HPD_INT_STATUS_CABLE_DETECTED) ?
-			connector_status_connected : connector_status_disconnected;
-}
-
-#define HPD_GPIO_INDEX	2
-static enum drm_connector_status detect_gpio(struct hdmi *hdmi)
-{
-	const struct hdmi_platform_config *config = hdmi->config;
-	struct hdmi_gpio_data hpd_gpio = config->gpios[HPD_GPIO_INDEX];
-
-	return gpio_get_value(hpd_gpio.num) ?
-			connector_status_connected :
-			connector_status_disconnected;
-}
-
-static enum drm_connector_status hdmi_connector_detect(
-		struct drm_connector *connector, bool force)
-{
-	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
-	struct hdmi *hdmi = hdmi_connector->hdmi;
-	const struct hdmi_platform_config *config = hdmi->config;
-	struct hdmi_gpio_data hpd_gpio = config->gpios[HPD_GPIO_INDEX];
-	enum drm_connector_status stat_gpio, stat_reg;
-	int retry = 20;
-
-	/*
-	 * some platforms may not have hpd gpio. Rely only on the status
-	 * provided by REG_HDMI_HPD_INT_STATUS in this case.
-	 */
-	if (hpd_gpio.num == -1)
-		return detect_reg(hdmi);
-
-	do {
-		stat_gpio = detect_gpio(hdmi);
-		stat_reg  = detect_reg(hdmi);
-
-		if (stat_gpio == stat_reg)
-			break;
-
-		mdelay(10);
-	} while (--retry);
-
-	/* the status we get from reading gpio seems to be more reliable,
-	 * so trust that one the most if we didn't manage to get hdmi and
-	 * gpio status to agree:
-	 */
-	if (stat_gpio != stat_reg) {
-		DBG("HDMI_HPD_INT_STATUS tells us: %d", stat_reg);
-		DBG("hpd gpio tells us: %d", stat_gpio);
-	}
-
-	return stat_gpio;
-}
-
-static void hdmi_connector_destroy(struct drm_connector *connector)
-{
-	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
-
-	hdp_disable(hdmi_connector);
-
-	drm_connector_cleanup(connector);
-
-	kfree(hdmi_connector);
-}
-
-static int msm_hdmi_connector_get_modes(struct drm_connector *connector)
-{
-	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
-	struct hdmi *hdmi = hdmi_connector->hdmi;
-	struct edid *edid;
-	uint32_t hdmi_ctrl;
-	int ret = 0;
-
-	hdmi_ctrl = hdmi_read(hdmi, REG_HDMI_CTRL);
-	hdmi_write(hdmi, REG_HDMI_CTRL, hdmi_ctrl | HDMI_CTRL_ENABLE);
-
-	edid = drm_get_edid(connector, hdmi->i2c);
-
-	hdmi_write(hdmi, REG_HDMI_CTRL, hdmi_ctrl);
-
-	hdmi->hdmi_mode = drm_detect_hdmi_monitor(edid);
-	drm_connector_update_edid_property(connector, edid);
-
-	if (edid) {
-		ret = drm_add_edid_modes(connector, edid);
-		kfree(edid);
-	}
-
-	return ret;
-}
-
-static int msm_hdmi_connector_mode_valid(struct drm_connector *connector,
-				 struct drm_display_mode *mode)
-{
-	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
-	struct hdmi *hdmi = hdmi_connector->hdmi;
-	const struct hdmi_platform_config *config = hdmi->config;
-	struct msm_drm_private *priv = connector->dev->dev_private;
-	struct msm_kms *kms = priv->kms;
-	long actual, requested;
-
-	requested = 1000 * mode->clock;
-	actual = kms->funcs->round_pixclk(kms,
-			requested, hdmi_connector->hdmi->encoder);
-
-	/* for mdp5/apq8074, we manage our own pixel clk (as opposed to
-	 * mdp4/dtv stuff where pixel clk is assigned to mdp/encoder
-	 * instead):
-	 */
-	if (config->pwr_clk_cnt > 0)
-		actual = clk_round_rate(hdmi->pwr_clks[0], actual);
-
-	DBG("requested=%ld, actual=%ld", requested, actual);
-
-	if (actual != requested)
-		return MODE_CLOCK_RANGE;
-
-	return 0;
-}
-
-static const struct drm_connector_funcs hdmi_connector_funcs = {
-	.detect = hdmi_connector_detect,
-	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = hdmi_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 msm_hdmi_connector_helper_funcs = {
-	.get_modes = msm_hdmi_connector_get_modes,
-	.mode_valid = msm_hdmi_connector_mode_valid,
-};
-
-/* initialize connector */
-struct drm_connector *msm_hdmi_connector_init(struct hdmi *hdmi)
-{
-	struct drm_connector *connector = NULL;
-	struct hdmi_connector *hdmi_connector;
-
-	hdmi_connector = kzalloc(sizeof(*hdmi_connector), GFP_KERNEL);
-	if (!hdmi_connector)
-		return ERR_PTR(-ENOMEM);
-
-	hdmi_connector->hdmi = hdmi;
-	INIT_WORK(&hdmi_connector->hpd_work, msm_hdmi_hotplug_work);
-
-	connector = &hdmi_connector->base;
-
-	drm_connector_init(hdmi->dev, connector, &hdmi_connector_funcs,
-			DRM_MODE_CONNECTOR_HDMIA);
-	drm_connector_helper_add(connector, &msm_hdmi_connector_helper_funcs);
-
-	connector->polled = DRM_CONNECTOR_POLL_CONNECT |
-			DRM_CONNECTOR_POLL_DISCONNECT;
-
-	connector->interlace_allowed = 0;
-	connector->doublescan_allowed = 0;
-
-	drm_connector_attach_encoder(connector, hdmi->encoder);
-
-	return connector;
-}