media: move CEC platform drivers to a separate directory

As CEC support doesn't depend on MEDIA_SUPPORT, let's
place the platform drivers outside the media menu.

As a side effect, instead of depends on PCI, seco driver
can select it (and DMI).

Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

1 files changed, 0 insertions, 307 deletions

diff --git a/drivers/media/platform/s5p-cec/s5p_cec.c b/drivers/media/platform/s5p-cec/s5p_cec.c
deleted file mode 100644
index 2a3e7ffefe0a..000000000000
--- a/drivers/media/platform/s5p-cec/s5p_cec.c
+++ /dev/null
@@ -1,307 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* drivers/media/platform/s5p-cec/s5p_cec.c
- *
- * Samsung S5P CEC driver
- *
- * Copyright (c) 2014 Samsung Electronics Co., Ltd.
- *
- * This driver is based on the "cec interface driver for exynos soc" by
- * SangPil Moon.
- */
-
-#include <linux/clk.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/mfd/syscon.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/timer.h>
-#include <linux/workqueue.h>
-#include <media/cec.h>
-#include <media/cec-notifier.h>
-
-#include "exynos_hdmi_cec.h"
-#include "regs-cec.h"
-#include "s5p_cec.h"
-
-#define CEC_NAME	"s5p-cec"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "debug level (0-2)");
-
-static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable)
-{
-	struct s5p_cec_dev *cec = cec_get_drvdata(adap);
-
-	if (enable) {
-		pm_runtime_get_sync(cec->dev);
-
-		s5p_cec_reset(cec);
-
-		s5p_cec_set_divider(cec);
-		s5p_cec_threshold(cec);
-
-		s5p_cec_unmask_tx_interrupts(cec);
-		s5p_cec_unmask_rx_interrupts(cec);
-		s5p_cec_enable_rx(cec);
-	} else {
-		s5p_cec_mask_tx_interrupts(cec);
-		s5p_cec_mask_rx_interrupts(cec);
-		pm_runtime_disable(cec->dev);
-	}
-
-	return 0;
-}
-
-static int s5p_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
-{
-	struct s5p_cec_dev *cec = cec_get_drvdata(adap);
-
-	s5p_cec_set_addr(cec, addr);
-	return 0;
-}
-
-static int s5p_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
-				 u32 signal_free_time, struct cec_msg *msg)
-{
-	struct s5p_cec_dev *cec = cec_get_drvdata(adap);
-
-	/*
-	 * Unclear if 0 retries are allowed by the hardware, so have 1 as
-	 * the minimum.
-	 */
-	s5p_cec_copy_packet(cec, msg->msg, msg->len, max(1, attempts - 1));
-	return 0;
-}
-
-static irqreturn_t s5p_cec_irq_handler(int irq, void *priv)
-{
-	struct s5p_cec_dev *cec = priv;
-	u32 status = 0;
-
-	status = s5p_cec_get_status(cec);
-
-	dev_dbg(cec->dev, "irq received\n");
-
-	if (status & CEC_STATUS_TX_DONE) {
-		if (status & CEC_STATUS_TX_NACK) {
-			dev_dbg(cec->dev, "CEC_STATUS_TX_NACK set\n");
-			cec->tx = STATE_NACK;
-		} else if (status & CEC_STATUS_TX_ERROR) {
-			dev_dbg(cec->dev, "CEC_STATUS_TX_ERROR set\n");
-			cec->tx = STATE_ERROR;
-		} else {
-			dev_dbg(cec->dev, "CEC_STATUS_TX_DONE\n");
-			cec->tx = STATE_DONE;
-		}
-		s5p_clr_pending_tx(cec);
-	}
-
-	if (status & CEC_STATUS_RX_DONE) {
-		if (status & CEC_STATUS_RX_ERROR) {
-			dev_dbg(cec->dev, "CEC_STATUS_RX_ERROR set\n");
-			s5p_cec_rx_reset(cec);
-			s5p_cec_enable_rx(cec);
-		} else {
-			dev_dbg(cec->dev, "CEC_STATUS_RX_DONE set\n");
-			if (cec->rx != STATE_IDLE)
-				dev_dbg(cec->dev, "Buffer overrun (worker did not process previous message)\n");
-			cec->rx = STATE_BUSY;
-			cec->msg.len = status >> 24;
-			cec->msg.rx_status = CEC_RX_STATUS_OK;
-			s5p_cec_get_rx_buf(cec, cec->msg.len,
-					cec->msg.msg);
-			cec->rx = STATE_DONE;
-			s5p_cec_enable_rx(cec);
-		}
-		/* Clear interrupt pending bit */
-		s5p_clr_pending_rx(cec);
-	}
-	return IRQ_WAKE_THREAD;
-}
-
-static irqreturn_t s5p_cec_irq_handler_thread(int irq, void *priv)
-{
-	struct s5p_cec_dev *cec = priv;
-
-	dev_dbg(cec->dev, "irq processing thread\n");
-	switch (cec->tx) {
-	case STATE_DONE:
-		cec_transmit_done(cec->adap, CEC_TX_STATUS_OK, 0, 0, 0, 0);
-		cec->tx = STATE_IDLE;
-		break;
-	case STATE_NACK:
-		cec_transmit_done(cec->adap,
-			CEC_TX_STATUS_MAX_RETRIES | CEC_TX_STATUS_NACK,
-			0, 1, 0, 0);
-		cec->tx = STATE_IDLE;
-		break;
-	case STATE_ERROR:
-		cec_transmit_done(cec->adap,
-			CEC_TX_STATUS_MAX_RETRIES | CEC_TX_STATUS_ERROR,
-			0, 0, 0, 1);
-		cec->tx = STATE_IDLE;
-		break;
-	case STATE_BUSY:
-		dev_err(cec->dev, "state set to busy, this should not occur here\n");
-		break;
-	default:
-		break;
-	}
-
-	switch (cec->rx) {
-	case STATE_DONE:
-		cec_received_msg(cec->adap, &cec->msg);
-		cec->rx = STATE_IDLE;
-		break;
-	default:
-		break;
-	}
-
-	return IRQ_HANDLED;
-}
-
-static const struct cec_adap_ops s5p_cec_adap_ops = {
-	.adap_enable = s5p_cec_adap_enable,
-	.adap_log_addr = s5p_cec_adap_log_addr,
-	.adap_transmit = s5p_cec_adap_transmit,
-};
-
-static int s5p_cec_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct device *hdmi_dev;
-	struct resource *res;
-	struct s5p_cec_dev *cec;
-	bool needs_hpd = of_property_read_bool(pdev->dev.of_node, "needs-hpd");
-	int ret;
-
-	hdmi_dev = cec_notifier_parse_hdmi_phandle(dev);
-
-	if (IS_ERR(hdmi_dev))
-		return PTR_ERR(hdmi_dev);
-
-	cec = devm_kzalloc(&pdev->dev, sizeof(*cec), GFP_KERNEL);
-	if (!cec)
-		return -ENOMEM;
-
-	cec->dev = dev;
-
-	cec->irq = platform_get_irq(pdev, 0);
-	if (cec->irq < 0)
-		return cec->irq;
-
-	ret = devm_request_threaded_irq(dev, cec->irq, s5p_cec_irq_handler,
-		s5p_cec_irq_handler_thread, 0, pdev->name, cec);
-	if (ret)
-		return ret;
-
-	cec->clk = devm_clk_get(dev, "hdmicec");
-	if (IS_ERR(cec->clk))
-		return PTR_ERR(cec->clk);
-
-	cec->pmu = syscon_regmap_lookup_by_phandle(dev->of_node,
-						 "samsung,syscon-phandle");
-	if (IS_ERR(cec->pmu))
-		return -EPROBE_DEFER;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	cec->reg = devm_ioremap_resource(dev, res);
-	if (IS_ERR(cec->reg))
-		return PTR_ERR(cec->reg);
-
-	cec->adap = cec_allocate_adapter(&s5p_cec_adap_ops, cec, CEC_NAME,
-		CEC_CAP_DEFAULTS | (needs_hpd ? CEC_CAP_NEEDS_HPD : 0) |
-		CEC_CAP_CONNECTOR_INFO, 1);
-	ret = PTR_ERR_OR_ZERO(cec->adap);
-	if (ret)
-		return ret;
-
-	cec->notifier = cec_notifier_cec_adap_register(hdmi_dev, NULL,
-						       cec->adap);
-	if (!cec->notifier) {
-		ret = -ENOMEM;
-		goto err_delete_adapter;
-	}
-
-	ret = cec_register_adapter(cec->adap, &pdev->dev);
-	if (ret)
-		goto err_notifier;
-
-	platform_set_drvdata(pdev, cec);
-	pm_runtime_enable(dev);
-
-	dev_dbg(dev, "successfully probed\n");
-	return 0;
-
-err_notifier:
-	cec_notifier_cec_adap_unregister(cec->notifier, cec->adap);
-
-err_delete_adapter:
-	cec_delete_adapter(cec->adap);
-	return ret;
-}
-
-static int s5p_cec_remove(struct platform_device *pdev)
-{
-	struct s5p_cec_dev *cec = platform_get_drvdata(pdev);
-
-	cec_notifier_cec_adap_unregister(cec->notifier, cec->adap);
-	cec_unregister_adapter(cec->adap);
-	pm_runtime_disable(&pdev->dev);
-	return 0;
-}
-
-static int __maybe_unused s5p_cec_runtime_suspend(struct device *dev)
-{
-	struct s5p_cec_dev *cec = dev_get_drvdata(dev);
-
-	clk_disable_unprepare(cec->clk);
-	return 0;
-}
-
-static int __maybe_unused s5p_cec_runtime_resume(struct device *dev)
-{
-	struct s5p_cec_dev *cec = dev_get_drvdata(dev);
-	int ret;
-
-	ret = clk_prepare_enable(cec->clk);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
-static const struct dev_pm_ops s5p_cec_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
-				pm_runtime_force_resume)
-	SET_RUNTIME_PM_OPS(s5p_cec_runtime_suspend, s5p_cec_runtime_resume,
-			   NULL)
-};
-
-static const struct of_device_id s5p_cec_match[] = {
-	{
-		.compatible	= "samsung,s5p-cec",
-	},
-	{},
-};
-MODULE_DEVICE_TABLE(of, s5p_cec_match);
-
-static struct platform_driver s5p_cec_pdrv = {
-	.probe	= s5p_cec_probe,
-	.remove	= s5p_cec_remove,
-	.driver	= {
-		.name		= CEC_NAME,
-		.of_match_table	= s5p_cec_match,
-		.pm		= &s5p_cec_pm_ops,
-	},
-};
-
-module_platform_driver(s5p_cec_pdrv);
-
-MODULE_AUTHOR("Kamil Debski <kamil@wypas.org>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Samsung S5P CEC driver");