kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 474 deletions

diff --git a/target/linux/layerscape/patches-5.4/805-display-0008-drm-bridge-cadence-Add-CEC-driver-for-cdns-mhdp-hdmi.patch b/target/linux/layerscape/patches-5.4/805-display-0008-drm-bridge-cadence-Add-CEC-driver-for-cdns-mhdp-hdmi.patch
deleted file mode 100644
index 742928e71a..0000000000
--- a/target/linux/layerscape/patches-5.4/805-display-0008-drm-bridge-cadence-Add-CEC-driver-for-cdns-mhdp-hdmi.patch
+++ /dev/null
@@ -1,474 +0,0 @@
-From ed9e7a6b3346b186a7bd22d9b62072e55ff7b9c5 Mon Sep 17 00:00:00 2001
-From: Sandor Yu <Sandor.yu@nxp.com>
-Date: Mon, 2 Sep 2019 14:57:05 +0800
-Subject: [PATCH] drm: bridge: cadence: Add CEC driver for cdns mhdp hdmi
-
-Add cec driver for cdns mhdp hdmi.
-
-Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
----
- drivers/gpu/drm/bridge/cadence/Kconfig            |   3 +
- drivers/gpu/drm/bridge/cadence/Makefile           |   1 +
- drivers/gpu/drm/bridge/cadence/cdns-dp-core.c     |   0
- drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c   |   9 +
- drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c    | 347 ++++++++++++++++++++++
- drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c |   0
- drivers/gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c   |   0
- include/drm/bridge/cdns-mhdp-common.h             |  24 +-
- 8 files changed, 382 insertions(+), 2 deletions(-)
- mode change 100755 => 100644 drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
- mode change 100755 => 100644 drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
- create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c
- mode change 100755 => 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c
- mode change 100755 => 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c
-
---- a/drivers/gpu/drm/bridge/cadence/Kconfig
-+++ b/drivers/gpu/drm/bridge/cadence/Kconfig
-@@ -14,3 +14,6 @@ config DRM_CDNS_DP
- 
- config DRM_CDNS_AUDIO
- 	tristate "Cadence MHDP Audio driver"
-+
-+config DRM_CDNS_HDMI_CEC
-+	tristate "Cadence MHDP HDMI CEC driver"
---- a/drivers/gpu/drm/bridge/cadence/Makefile
-+++ b/drivers/gpu/drm/bridge/cadence/Makefile
-@@ -2,3 +2,4 @@ obj-$(CONFIG_DRM_CDNS_MHDP) += cdns-mhdp
- obj-$(CONFIG_DRM_CDNS_HDMI) += cdns-hdmi-core.o
- obj-$(CONFIG_DRM_CDNS_DP) += cdns-dp-core.o
- obj-$(CONFIG_DRM_CDNS_AUDIO) += cdns-mhdp-audio.o
-+obj-$(CONFIG_DRM_CDNS_HDMI_CEC) += cdns-mhdp-cec.o
---- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
-+++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
-@@ -515,6 +515,11 @@ __cdns_hdmi_probe(struct platform_device
- 	/* register audio driver */
- 	cdns_mhdp_register_audio_driver(dev);
- 
-+	/* register cec driver */
-+#ifdef CONFIG_DRM_CDNS_HDMI_CEC
-+	cdns_mhdp_register_cec_driver(dev);
-+#endif
-+
- 	return hdmi;
- 
- err_out:
-@@ -524,6 +529,10 @@ err_out:
- 
- static void __cdns_hdmi_remove(struct cdns_mhdp_device *mhdp)
- {
-+	/* unregister cec driver */
-+#ifdef CONFIG_DRM_CDNS_HDMI_CEC
-+	cdns_mhdp_unregister_cec_driver(mhdp->dev);
-+#endif
- 	cdns_mhdp_unregister_audio_driver(mhdp->dev);
- }
- 
---- /dev/null
-+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c
-@@ -0,0 +1,347 @@
-+/*
-+ * Copyright 2019 NXP
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2
-+ * of the License, or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ */
-+#include <linux/module.h>
-+#include <linux/workqueue.h>
-+#include <linux/kthread.h>
-+#include <linux/freezer.h>
-+#include <drm/bridge/cdns-mhdp-common.h>
-+
-+#define CEC_NAME	"cdns-mhdp-cec"
-+
-+#define REG_ADDR_OFF 4
-+#define MAX_LA_IDX 4
-+#define MAX_LA_VAL 15
-+
-+/* regsiter define */
-+#define TX_MSG_HEADER 0x33800
-+#define TX_MSG_LENGTH 0x33840
-+#define TX_MSG_CMD 0x33844
-+#define RX_MSG_CMD 0x33850
-+#define RX_CLEAR_BUF 0x33854
-+#define LOGICAL_ADDRESS_LA0 0x33858
-+
-+#define CLK_DIV_MSB 0x3386c
-+#define CLK_DIV_LSB 0x33870
-+#define RX_MSG_DATA1 0x33900
-+#define RX_MSG_LENGTH 0x33940
-+#define RX_MSG_STATUS 0x33944
-+#define NUM_OF_MSG_RX_BUF 0x33948
-+#define TX_MSG_STATUS 0x3394c
-+#define DB_L_TIMER 0x33980
-+
-+/**
-+ * CEC Transceiver operation.
-+ */
-+enum {
-+	CEC_TX_STOP,
-+	CEC_TX_TRANSMIT,
-+	CEC_TX_ABORT,
-+	CEC_TX_ABORT_AND_TRANSMIT
-+};
-+
-+/**
-+ * CEC Transceiver status.
-+ */
-+enum {
-+	CEC_STS_IDLE,
-+	CEC_STS_BUSY,
-+	CEC_STS_SUCCESS,
-+	CEC_STS_ERROR
-+};
-+
-+/**
-+ * CEC Receiver operation.
-+ */
-+enum {
-+	CEC_RX_STOP,
-+	CEC_RX_READ,
-+	CEC_RX_DISABLE,
-+	CEC_RX_ABORT_AND_CLR_FIFO
-+};
-+/**
-+ * Maximum number of Messages in the RX Buffers.
-+ */
-+#define CEC_MAX_RX_MSGS 2
-+
-+static u32 mhdp_cec_read(struct cdns_mhdp_cec *cec, u32 offset)
-+{
-+	struct cdns_mhdp_device *mhdp =
-+			container_of(cec, struct cdns_mhdp_device, hdmi.cec);
-+	return cdns_mhdp_bus_read(mhdp, offset);
-+}
-+
-+static void mhdp_cec_write(struct cdns_mhdp_cec *cec, u32 offset, u32 val)
-+{
-+	struct cdns_mhdp_device *mhdp =
-+			container_of(cec, struct cdns_mhdp_device, hdmi.cec);
-+	cdns_mhdp_bus_write(val, mhdp, offset);
-+}
-+
-+static void mhdp_cec_clear_rx_buffer(struct cdns_mhdp_cec *cec)
-+{
-+	mhdp_cec_write(cec, RX_CLEAR_BUF, 1);
-+	mhdp_cec_write(cec, RX_CLEAR_BUF, 0);
-+}
-+
-+static void mhdp_cec_set_divider(struct cdns_mhdp_cec *cec)
-+{
-+	struct cdns_mhdp_device *mhdp =
-+			container_of(cec, struct cdns_mhdp_device, hdmi.cec);
-+	u32 clk_div;
-+
-+	/* Set clock divider */
-+	clk_div = cdns_mhdp_get_fw_clk(mhdp) * 10;
-+
-+	mhdp_cec_write(cec, CLK_DIV_MSB,
-+			  (clk_div >> 8) & 0xFF);
-+	mhdp_cec_write(cec, CLK_DIV_LSB, clk_div & 0xFF);
-+}
-+
-+static u32 mhdp_cec_read_message(struct cdns_mhdp_cec *cec)
-+{
-+	struct cec_msg *msg = &cec->msg;
-+	int len;
-+	int i;
-+
-+	mhdp_cec_write(cec, RX_MSG_CMD, CEC_RX_READ);
-+
-+	len = mhdp_cec_read(cec, RX_MSG_LENGTH);
-+	msg->len = len + 1;
-+	dev_dbg(cec->dev, "RX MSG len =%d\n", len);
-+
-+	/* Read RX MSG bytes */
-+	for (i = 0; i < msg->len; ++i) {
-+		msg->msg[i] = (u8) mhdp_cec_read(cec, RX_MSG_DATA1 + (i * REG_ADDR_OFF));
-+		dev_dbg(cec->dev, "RX MSG[%d]=0x%x\n", i, msg->msg[i]);
-+	}
-+
-+	mhdp_cec_write(cec, RX_MSG_CMD, CEC_RX_STOP);
-+
-+	return true;
-+}
-+
-+static u32 mhdp_cec_write_message(struct cdns_mhdp_cec *cec, struct cec_msg *msg)
-+{
-+	u8 i;
-+
-+	mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_STOP);
-+
-+	if (msg->len > CEC_MAX_MSG_SIZE) {
-+		dev_err(cec->dev, "Invalid MSG size!\n");
-+		return -EINVAL;
-+	}
-+
-+	for (i = 0; i < msg->len; ++i)
-+		printk("msg[%d]=0x%x\n",i, msg->msg[i]);
-+
-+	/* Write Message to register */
-+	for (i = 0; i < msg->len; ++i) {
-+		mhdp_cec_write(cec, TX_MSG_HEADER + (i * REG_ADDR_OFF),
-+			  msg->msg[i]);
-+	}
-+	/* Write Message Length (payload + opcode) */
-+	mhdp_cec_write(cec, TX_MSG_LENGTH, msg->len - 1);
-+
-+	mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_TRANSMIT);
-+
-+	return true;
-+}
-+
-+//static void cec_abort_tx_transfer(struct cdns_mhdp_cec *cec)
-+//{
-+//	cec_write(cec, TX_MSG_CMD, CEC_TX_ABORT);
-+//	cec_write(cec, TX_MSG_CMD, CEC_TX_STOP);
-+//}
-+
-+static int mhdp_cec_set_logical_addr(struct cdns_mhdp_cec *cec, u32 la)
-+{
-+	u8 i;
-+	u8 la_reg;
-+
-+	if (la >= MAX_LA_VAL) {
-+		dev_err(cec->dev, "Error logical Addr\n");
-+		return -EINVAL;
-+	}
-+
-+	for (i = 0; i < MAX_LA_IDX; ++i) {
-+		la_reg =
-+		    mhdp_cec_read(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF));
-+
-+		if (la_reg & 0x10)
-+			continue;
-+
-+		if ((la_reg & 0xF) == la) {
-+			dev_warn(cec->dev, "Warning. LA already in use.\n");
-+			return true;
-+		}
-+
-+		la = (la & 0xF) | (1 << 4);
-+
-+		mhdp_cec_write(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF), la);
-+		return true;
-+	}
-+
-+	dev_warn(cec->dev, "All LA in use\n");
-+
-+	return false;
-+}
-+
-+static int mhdp_cec_poll_worker(void *_cec)
-+{
-+	struct cdns_mhdp_cec *cec = (struct cdns_mhdp_cec *)_cec;
-+	int num_rx_msgs, i;
-+	int sts;
-+
-+	set_freezable();
-+
-+	for (;;) {
-+		if (kthread_freezable_should_stop(NULL))
-+			break;
-+
-+		/* Check TX State */
-+		sts = mhdp_cec_read(cec, TX_MSG_STATUS);
-+		switch (sts) {
-+		case CEC_STS_SUCCESS:
-+			cec_transmit_done(cec->adap, CEC_TX_STATUS_OK, 0, 0, 0,
-+					  0);
-+			mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_STOP);
-+			break;
-+		case CEC_STS_ERROR:
-+			mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_STOP);
-+			cec_transmit_done(cec->adap,
-+					  CEC_TX_STATUS_MAX_RETRIES |
-+					  CEC_TX_STATUS_NACK, 0, 1, 0, 0);
-+			break;
-+		case CEC_STS_BUSY:
-+		default:
-+			break;
-+		}
-+
-+		/* Check RX State */
-+		sts = mhdp_cec_read(cec, RX_MSG_STATUS);
-+		num_rx_msgs = mhdp_cec_read(cec, NUM_OF_MSG_RX_BUF);
-+		switch (sts) {
-+		case CEC_STS_SUCCESS:
-+			if (num_rx_msgs == 0xf)
-+				num_rx_msgs = CEC_MAX_RX_MSGS;
-+
-+			if (num_rx_msgs > CEC_MAX_RX_MSGS) {
-+				dev_err(cec->dev, "Error rx msg num %d\n",
-+					num_rx_msgs);
-+				mhdp_cec_clear_rx_buffer(cec);
-+				break;
-+			}
-+
-+			/* Rx FIFO Depth 2 RX MSG */
-+			for (i = 0; i < num_rx_msgs; i++) {
-+				mhdp_cec_read_message(cec);
-+				cec->msg.rx_status = CEC_RX_STATUS_OK;
-+				cec_received_msg(cec->adap, &cec->msg);
-+			}
-+			break;
-+		default:
-+			break;
-+		}
-+
-+		if (!kthread_should_stop())
-+			schedule_timeout_idle(20);
-+	}
-+
-+	return 0;
-+}
-+
-+static int mhdp_cec_adap_enable(struct cec_adapter *adap, bool enable)
-+{
-+	struct cdns_mhdp_cec *cec = adap->priv;
-+
-+	if (enable) {
-+		mhdp_cec_write(cec, DB_L_TIMER, 0x10);
-+		mhdp_cec_set_divider(cec);
-+	} else
-+		mhdp_cec_set_divider(cec);
-+
-+	return 0;
-+}
-+
-+static int mhdp_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
-+{
-+	struct cdns_mhdp_cec *cec = adap->priv;
-+
-+	return mhdp_cec_set_logical_addr(cec, addr);
-+}
-+
-+static int mhdp_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
-+				 u32 signal_free_time, struct cec_msg *msg)
-+{
-+	struct cdns_mhdp_cec *cec = adap->priv;
-+
-+	mhdp_cec_write_message(cec, msg);
-+
-+	return 0;
-+}
-+
-+static const struct cec_adap_ops cdns_mhdp_cec_adap_ops = {
-+	.adap_enable = mhdp_cec_adap_enable,
-+	.adap_log_addr = mhdp_cec_adap_log_addr,
-+	.adap_transmit = mhdp_cec_adap_transmit,
-+};
-+
-+int cdns_mhdp_register_cec_driver(struct device *dev)
-+{
-+	struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev);
-+	struct cdns_mhdp_cec *cec = &mhdp->hdmi.cec;
-+	int ret;
-+
-+	cec->adap = cec_allocate_adapter(&cdns_mhdp_cec_adap_ops, cec,
-+					 CEC_NAME,
-+					 CEC_CAP_PHYS_ADDR | CEC_CAP_LOG_ADDRS |
-+					 CEC_CAP_TRANSMIT | CEC_CAP_PASSTHROUGH
-+					 | CEC_CAP_RC, 1);
-+	ret = PTR_ERR_OR_ZERO(cec->adap);
-+	if (ret)
-+		return ret;
-+	ret = cec_register_adapter(cec->adap, dev);
-+	if (ret) {
-+		cec_delete_adapter(cec->adap);
-+		return ret;
-+	}
-+
-+	cec->dev = dev;
-+
-+	cec->cec_worker = kthread_create(mhdp_cec_poll_worker, cec, "cdns-mhdp-cec");
-+	if (IS_ERR(cec->cec_worker))
-+		dev_err(cec->dev, "failed  create hdp cec thread\n");
-+
-+	wake_up_process(cec->cec_worker);
-+
-+	dev_dbg(dev, "CEC successfuly probed\n");
-+	return 0;
-+}
-+
-+int cdns_mhdp_unregister_cec_driver(struct device *dev)
-+{
-+	struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev);
-+	struct cdns_mhdp_cec *cec = &mhdp->hdmi.cec;
-+
-+	if (cec->cec_worker) {
-+		kthread_stop(cec->cec_worker);
-+		cec->cec_worker = NULL;
-+	}
-+	cec_unregister_adapter(cec->adap);
-+	return 0;
-+}
-+
-+MODULE_AUTHOR("Sandor.Yu@NXP.com");
-+MODULE_LICENSE("GPL");
-+MODULE_DESCRIPTION("NXP CDNS MHDP CEC driver");
---- a/include/drm/bridge/cdns-mhdp-common.h
-+++ b/include/drm/bridge/cdns-mhdp-common.h
-@@ -21,7 +21,7 @@
- #include <drm/drm_connector.h>
- #include <drm/drm_dp_helper.h>
- #include <drm/drm_dp_mst_helper.h>
--
-+#include <media/cec.h>
- #include <linux/bitops.h>
- 
- #define ADDR_IMEM		0x10000
-@@ -605,6 +605,17 @@ struct cdns_mhdp_connector {
- 	struct cdns_mhdp_bridge *bridge;
- };
- 
-+#ifdef CONFIG_DRM_CDNS_HDMI_CEC
-+struct cdns_mhdp_cec {
-+       struct cec_adapter *adap;
-+       struct device *dev;
-+       struct mutex lock;
-+
-+       struct cec_msg msg;
-+       struct task_struct *cec_worker;
-+};
-+#endif
-+
- struct cdns_mhdp_device {
- 	void __iomem		*regs;
- 
-@@ -633,7 +644,7 @@ struct cdns_mhdp_device {
- 	bool plugged;
- 
- 	union {
--		struct cdn_dp_data {
-+		struct _dp_data {
- 			struct drm_dp_link	link;
- 			struct drm_dp_aux	aux;
- 			struct cdns_mhdp_host	host;
-@@ -645,6 +656,9 @@ struct cdns_mhdp_device {
- 			u32 num_lanes;
- 		} dp;
- 		struct _hdmi_data {
-+#ifdef CONFIG_DRM_CDNS_HDMI_CEC
-+			struct cdns_mhdp_cec cec;
-+#endif
- 			u32 char_rate;
- 			u32 hdmi_type;
- 		} hdmi;
-@@ -713,4 +727,10 @@ int cdns_hdmi_disable_gcp(struct cdns_mh
- int cdns_hdmi_enable_gcp(struct cdns_mhdp_device *mhdp);
- 
- bool cdns_mhdp_check_alive(struct cdns_mhdp_device *mhdp);
-+/* CEC */
-+#ifdef CONFIG_DRM_CDNS_HDMI_CEC
-+int cdns_mhdp_register_cec_driver(struct device *dev);
-+int cdns_mhdp_unregister_cec_driver(struct device *dev);
-+#endif
-+
- #endif /* CDNS_MHDP_COMMON_H_ */