[PATCH v2 0/4] thunderbolt: Miscellaneous cleanups

[PATCH v2 0/4] thunderbolt: Miscellaneous cleanups

[Mika Westerberg]

Hi all,

Here are a couple of changes which have been in my TODO list some time
already but have not had time to make a proper patch out of them until now.

The only change to the previous version is that I realized it could be
useful for users to see the actual connected devices (including their name
which is read from DROM) printed to the system log. Hence the patch 2/4.

Mika Westerberg (4):
  thunderbolt: Make the driver less verbose
  thunderbolt: Print connected devices
  thunderbolt: Convert rest of the driver files to use SPDX identifier
  thunderbolt: Add Intel as copyright holder

 drivers/thunderbolt/cap.c      |  3 +-
 drivers/thunderbolt/ctl.c      |  9 +++--
 drivers/thunderbolt/ctl.h      |  3 +-
 drivers/thunderbolt/dma_port.c |  5 +--
 drivers/thunderbolt/dma_port.h |  5 +--
 drivers/thunderbolt/domain.c   |  7 +---
 drivers/thunderbolt/eeprom.c   |  5 ++-
 drivers/thunderbolt/icm.c      |  5 +--
 drivers/thunderbolt/nhi.c      | 33 ++++++++--------
 drivers/thunderbolt/nhi.h      |  3 +-
 drivers/thunderbolt/nhi_regs.h |  1 +
 drivers/thunderbolt/path.c     | 26 ++++++-------
 drivers/thunderbolt/property.c |  5 +--
 drivers/thunderbolt/switch.c   | 71 +++++++++++++++++++---------------
 drivers/thunderbolt/tb.c       | 10 ++---
 drivers/thunderbolt/tb.h       |  9 +++--
 drivers/thunderbolt/tb_msgs.h  |  5 +--
 drivers/thunderbolt/tb_regs.h  |  3 +-
 drivers/thunderbolt/xdomain.c  |  5 +--
 include/linux/thunderbolt.h    |  5 +--
 20 files changed, 107 insertions(+), 111 deletions(-)

-- 
2.18.0

[PATCH v2 1/4] thunderbolt: Make the driver less verbose

[Mika Westerberg]

Currently the driver logs quite a lot to the system message buffer even
when doing normal operations. This information is not useful for
ordinary users and might even annoy some.

For this reason convert most of the logs at info level to happen at
debug level instead. The nice output formatting is untouched.

Logging can be easily re-enabled by passing "thunderbolt.dyndbg" in the
kernel command line (or using the corresponding control file runtime).

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/thunderbolt/ctl.c    |  6 ++--
 drivers/thunderbolt/eeprom.c |  2 +-
 drivers/thunderbolt/nhi.c    | 30 +++++++++----------
 drivers/thunderbolt/path.c   | 26 ++++++++--------
 drivers/thunderbolt/switch.c | 57 +++++++++++++++++-------------------
 drivers/thunderbolt/tb.c     | 10 +++----
 drivers/thunderbolt/tb.h     |  6 ++--
 7 files changed, 68 insertions(+), 69 deletions(-)

diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index 37a7f4c735d0..2ab6033a0a3d 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -631,7 +631,7 @@ struct tb_ctl *tb_ctl_alloc(struct tb_nhi *nhi, event_cb cb, void *cb_data)
 		ctl->rx_packets[i]->frame.callback = tb_ctl_rx_callback;
 	}
 
-	tb_ctl_info(ctl, "control channel created\n");
+	tb_ctl_dbg(ctl, "control channel created\n");
 	return ctl;
 err:
 	tb_ctl_free(ctl);
@@ -673,7 +673,7 @@ void tb_ctl_free(struct tb_ctl *ctl)
 void tb_ctl_start(struct tb_ctl *ctl)
 {
 	int i;
-	tb_ctl_info(ctl, "control channel starting...\n");
+	tb_ctl_dbg(ctl, "control channel starting...\n");
 	tb_ring_start(ctl->tx); /* is used to ack hotplug packets, start first */
 	tb_ring_start(ctl->rx);
 	for (i = 0; i < TB_CTL_RX_PKG_COUNT; i++)
@@ -702,7 +702,7 @@ void tb_ctl_stop(struct tb_ctl *ctl)
 	if (!list_empty(&ctl->request_queue))
 		tb_ctl_WARN(ctl, "dangling request in request_queue\n");
 	INIT_LIST_HEAD(&ctl->request_queue);
-	tb_ctl_info(ctl, "control channel stopped\n");
+	tb_ctl_dbg(ctl, "control channel stopped\n");
 }
 
 /* public interface, commands */
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c
index 3e8caf22c294..d2dd40390783 100644
--- a/drivers/thunderbolt/eeprom.c
+++ b/drivers/thunderbolt/eeprom.c
@@ -540,7 +540,7 @@ int tb_drom_read(struct tb_switch *sw)
 		return res;
 	size &= 0x3ff;
 	size += TB_DROM_DATA_START;
-	tb_sw_info(sw, "reading drom (length: %#x)\n", size);
+	tb_sw_dbg(sw, "reading drom (length: %#x)\n", size);
 	if (size < sizeof(*header)) {
 		tb_sw_warn(sw, "drom too small, aborting\n");
 		return -EIO;
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 88cff05a1808..02379aa27120 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -95,9 +95,9 @@ static void ring_interrupt_active(struct tb_ring *ring, bool active)
 	else
 		new = old & ~mask;
 
-	dev_info(&ring->nhi->pdev->dev,
-		 "%s interrupt at register %#x bit %d (%#x -> %#x)\n",
-		 active ? "enabling" : "disabling", reg, bit, old, new);
+	dev_dbg(&ring->nhi->pdev->dev,
+		"%s interrupt at register %#x bit %d (%#x -> %#x)\n",
+		active ? "enabling" : "disabling", reg, bit, old, new);
 
 	if (new == old)
 		dev_WARN(&ring->nhi->pdev->dev,
@@ -476,8 +476,9 @@ static struct tb_ring *tb_ring_alloc(struct tb_nhi *nhi, u32 hop, int size,
 				     void *poll_data)
 {
 	struct tb_ring *ring = NULL;
-	dev_info(&nhi->pdev->dev, "allocating %s ring %d of size %d\n",
-		 transmit ? "TX" : "RX", hop, size);
+
+	dev_dbg(&nhi->pdev->dev, "allocating %s ring %d of size %d\n",
+		transmit ? "TX" : "RX", hop, size);
 
 	/* Tx Ring 2 is reserved for E2E workaround */
 	if (transmit && hop == RING_E2E_UNUSED_HOPID)
@@ -585,8 +586,8 @@ void tb_ring_start(struct tb_ring *ring)
 		dev_WARN(&ring->nhi->pdev->dev, "ring already started\n");
 		goto err;
 	}
-	dev_info(&ring->nhi->pdev->dev, "starting %s %d\n",
-		 RING_TYPE(ring), ring->hop);
+	dev_dbg(&ring->nhi->pdev->dev, "starting %s %d\n",
+		RING_TYPE(ring), ring->hop);
 
 	if (ring->flags & RING_FLAG_FRAME) {
 		/* Means 4096 */
@@ -647,8 +648,8 @@ void tb_ring_stop(struct tb_ring *ring)
 {
 	spin_lock_irq(&ring->nhi->lock);
 	spin_lock(&ring->lock);
-	dev_info(&ring->nhi->pdev->dev, "stopping %s %d\n",
-		 RING_TYPE(ring), ring->hop);
+	dev_dbg(&ring->nhi->pdev->dev, "stopping %s %d\n",
+		RING_TYPE(ring), ring->hop);
 	if (ring->nhi->going_away)
 		goto err;
 	if (!ring->running) {
@@ -716,10 +717,8 @@ void tb_ring_free(struct tb_ring *ring)
 	ring->descriptors_dma = 0;
 
 
-	dev_info(&ring->nhi->pdev->dev,
-		 "freeing %s %d\n",
-		 RING_TYPE(ring),
-		 ring->hop);
+	dev_dbg(&ring->nhi->pdev->dev, "freeing %s %d\n", RING_TYPE(ring),
+		ring->hop);
 
 	/**
 	 * ring->work can no longer be scheduled (it is scheduled only
@@ -931,7 +930,8 @@ static int nhi_runtime_resume(struct device *dev)
 static void nhi_shutdown(struct tb_nhi *nhi)
 {
 	int i;
-	dev_info(&nhi->pdev->dev, "shutdown\n");
+
+	dev_dbg(&nhi->pdev->dev, "shutdown\n");
 
 	for (i = 0; i < nhi->hop_count; i++) {
 		if (nhi->tx_rings[i])
@@ -1059,7 +1059,7 @@ static int nhi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return -ENODEV;
 	}
 
-	dev_info(&nhi->pdev->dev, "NHI initialized, starting thunderbolt\n");
+	dev_dbg(&nhi->pdev->dev, "NHI initialized, starting thunderbolt\n");
 
 	res = tb_domain_add(tb);
 	if (res) {
diff --git a/drivers/thunderbolt/path.c b/drivers/thunderbolt/path.c
index ff49ad880bfd..a11956522bac 100644
--- a/drivers/thunderbolt/path.c
+++ b/drivers/thunderbolt/path.c
@@ -13,19 +13,19 @@
 
 static void tb_dump_hop(struct tb_port *port, struct tb_regs_hop *hop)
 {
-	tb_port_info(port, " Hop through port %d to hop %d (%s)\n",
-		     hop->out_port, hop->next_hop,
-		     hop->enable ? "enabled" : "disabled");
-	tb_port_info(port, "  Weight: %d Priority: %d Credits: %d Drop: %d\n",
-		     hop->weight, hop->priority,
-		     hop->initial_credits, hop->drop_packages);
-	tb_port_info(port, "   Counter enabled: %d Counter index: %d\n",
-		     hop->counter_enable, hop->counter);
-	tb_port_info(port, "  Flow Control (In/Eg): %d/%d Shared Buffer (In/Eg): %d/%d\n",
-		     hop->ingress_fc, hop->egress_fc,
-		     hop->ingress_shared_buffer, hop->egress_shared_buffer);
-	tb_port_info(port, "  Unknown1: %#x Unknown2: %#x Unknown3: %#x\n",
-		     hop->unknown1, hop->unknown2, hop->unknown3);
+	tb_port_dbg(port, " Hop through port %d to hop %d (%s)\n",
+		    hop->out_port, hop->next_hop,
+		    hop->enable ? "enabled" : "disabled");
+	tb_port_dbg(port, "  Weight: %d Priority: %d Credits: %d Drop: %d\n",
+		    hop->weight, hop->priority,
+		    hop->initial_credits, hop->drop_packages);
+	tb_port_dbg(port, "   Counter enabled: %d Counter index: %d\n",
+		    hop->counter_enable, hop->counter);
+	tb_port_dbg(port, "  Flow Control (In/Eg): %d/%d Shared Buffer (In/Eg): %d/%d\n",
+		    hop->ingress_fc, hop->egress_fc,
+		    hop->ingress_shared_buffer, hop->egress_shared_buffer);
+	tb_port_dbg(port, "  Unknown1: %#x Unknown2: %#x Unknown3: %#x\n",
+		    hop->unknown1, hop->unknown2, hop->unknown3);
 }
 
 /**
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 7442bc4c6433..81134ee29578 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -436,15 +436,15 @@ static const char *tb_port_type(struct tb_regs_port_header *port)
 
 static void tb_dump_port(struct tb *tb, struct tb_regs_port_header *port)
 {
-	tb_info(tb,
-		" Port %d: %x:%x (Revision: %d, TB Version: %d, Type: %s (%#x))\n",
-		port->port_number, port->vendor_id, port->device_id,
-		port->revision, port->thunderbolt_version, tb_port_type(port),
-		port->type);
-	tb_info(tb, "  Max hop id (in/out): %d/%d\n",
-		port->max_in_hop_id, port->max_out_hop_id);
-	tb_info(tb, "  Max counters: %d\n", port->max_counters);
-	tb_info(tb, "  NFC Credits: %#x\n", port->nfc_credits);
+	tb_dbg(tb,
+	       " Port %d: %x:%x (Revision: %d, TB Version: %d, Type: %s (%#x))\n",
+	       port->port_number, port->vendor_id, port->device_id,
+	       port->revision, port->thunderbolt_version, tb_port_type(port),
+	       port->type);
+	tb_dbg(tb, "  Max hop id (in/out): %d/%d\n",
+	       port->max_in_hop_id, port->max_out_hop_id);
+	tb_dbg(tb, "  Max counters: %d\n", port->max_counters);
+	tb_dbg(tb, "  NFC Credits: %#x\n", port->nfc_credits);
 }
 
 /**
@@ -605,20 +605,18 @@ static int tb_init_port(struct tb_port *port)
 
 static void tb_dump_switch(struct tb *tb, struct tb_regs_switch_header *sw)
 {
-	tb_info(tb,
-		" Switch: %x:%x (Revision: %d, TB Version: %d)\n",
-		sw->vendor_id, sw->device_id, sw->revision,
-		sw->thunderbolt_version);
-	tb_info(tb, "  Max Port Number: %d\n", sw->max_port_number);
-	tb_info(tb, "  Config:\n");
-	tb_info(tb,
+	tb_dbg(tb, " Switch: %x:%x (Revision: %d, TB Version: %d)\n",
+	       sw->vendor_id, sw->device_id, sw->revision,
+	       sw->thunderbolt_version);
+	tb_dbg(tb, "  Max Port Number: %d\n", sw->max_port_number);
+	tb_dbg(tb, "  Config:\n");
+	tb_dbg(tb,
 		"   Upstream Port Number: %d Depth: %d Route String: %#llx Enabled: %d, PlugEventsDelay: %dms\n",
-		sw->upstream_port_number, sw->depth,
-		(((u64) sw->route_hi) << 32) | sw->route_lo,
-		sw->enabled, sw->plug_events_delay);
-	tb_info(tb,
-		"   unknown1: %#x unknown4: %#x\n",
-		sw->__unknown1, sw->__unknown4);
+	       sw->upstream_port_number, sw->depth,
+	       (((u64) sw->route_hi) << 32) | sw->route_lo,
+	       sw->enabled, sw->plug_events_delay);
+	tb_dbg(tb, "   unknown1: %#x unknown4: %#x\n",
+	       sw->__unknown1, sw->__unknown4);
 }
 
 /**
@@ -634,7 +632,7 @@ int tb_switch_reset(struct tb *tb, u64 route)
 		header.route_lo = route,
 		header.enabled = true,
 	};
-	tb_info(tb, "resetting switch at %llx\n", route);
+	tb_dbg(tb, "resetting switch at %llx\n", route);
 	res.err = tb_cfg_write(tb->ctl, ((u32 *) &header) + 2, route,
 			0, 2, 2, 2);
 	if (res.err)
@@ -1139,7 +1137,7 @@ struct tb_switch *tb_switch_alloc(struct tb *tb, struct device *parent,
 	if (tb_cfg_read(tb->ctl, &sw->config, route, 0, TB_CFG_SWITCH, 0, 5))
 		goto err_free_sw_ports;
 
-	tb_info(tb, "current switch config:\n");
+	tb_dbg(tb, "current switch config:\n");
 	tb_dump_switch(tb, &sw->config);
 
 	/* configure switch */
@@ -1246,9 +1244,8 @@ int tb_switch_configure(struct tb_switch *sw)
 	int ret;
 
 	route = tb_route(sw);
-	tb_info(tb,
-		"initializing Switch at %#llx (depth: %d, up port: %d)\n",
-		route, tb_route_length(route), sw->config.upstream_port_number);
+	tb_dbg(tb, "initializing Switch at %#llx (depth: %d, up port: %d)\n",
+	       route, tb_route_length(route), sw->config.upstream_port_number);
 
 	if (sw->config.vendor_id != PCI_VENDOR_ID_INTEL)
 		tb_sw_warn(sw, "unknown switch vendor id %#x\n",
@@ -1386,13 +1383,13 @@ int tb_switch_add(struct tb_switch *sw)
 			tb_sw_warn(sw, "tb_eeprom_read_rom failed\n");
 			return ret;
 		}
-		tb_sw_info(sw, "uid: %#llx\n", sw->uid);
+		tb_sw_dbg(sw, "uid: %#llx\n", sw->uid);
 
 		tb_switch_set_uuid(sw);
 
 		for (i = 0; i <= sw->config.max_port_number; i++) {
 			if (sw->ports[i].disabled) {
-				tb_port_info(&sw->ports[i], "disabled by eeprom\n");
+				tb_port_dbg(&sw->ports[i], "disabled by eeprom\n");
 				continue;
 			}
 			ret = tb_init_port(&sw->ports[i]);
@@ -1483,7 +1480,7 @@ void tb_sw_set_unplugged(struct tb_switch *sw)
 int tb_switch_resume(struct tb_switch *sw)
 {
 	int i, err;
-	tb_sw_info(sw, "resuming switch\n");
+	tb_sw_dbg(sw, "resuming switch\n");
 
 	/*
 	 * Check for UID of the connected switches except for root
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 1424581fd9af..30e02c716f6c 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -404,10 +404,10 @@ static int tb_suspend_noirq(struct tb *tb)
 {
 	struct tb_cm *tcm = tb_priv(tb);
 
-	tb_info(tb, "suspending...\n");
+	tb_dbg(tb, "suspending...\n");
 	tb_switch_suspend(tb->root_switch);
 	tcm->hotplug_active = false; /* signal tb_handle_hotplug to quit */
-	tb_info(tb, "suspend finished\n");
+	tb_dbg(tb, "suspend finished\n");
 
 	return 0;
 }
@@ -417,7 +417,7 @@ static int tb_resume_noirq(struct tb *tb)
 	struct tb_cm *tcm = tb_priv(tb);
 	struct tb_pci_tunnel *tunnel, *n;
 
-	tb_info(tb, "resuming...\n");
+	tb_dbg(tb, "resuming...\n");
 
 	/* remove any pci devices the firmware might have setup */
 	tb_switch_reset(tb, 0);
@@ -432,12 +432,12 @@ static int tb_resume_noirq(struct tb *tb)
 		 * the pcie links need some time to get going.
 		 * 100ms works for me...
 		 */
-		tb_info(tb, "tunnels restarted, sleeping for 100ms\n");
+		tb_dbg(tb, "tunnels restarted, sleeping for 100ms\n");
 		msleep(100);
 	}
 	 /* Allow tb_handle_hotplug to progress events */
 	tcm->hotplug_active = true;
-	tb_info(tb, "resume finished\n");
+	tb_dbg(tb, "resume finished\n");
 
 	return 0;
 }
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 5067d69d0501..5a99245573c0 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -327,7 +327,7 @@ static inline int tb_port_write(struct tb_port *port, const void *buffer,
 #define tb_WARN(tb, fmt, arg...) dev_WARN(&(tb)->nhi->pdev->dev, fmt, ## arg)
 #define tb_warn(tb, fmt, arg...) dev_warn(&(tb)->nhi->pdev->dev, fmt, ## arg)
 #define tb_info(tb, fmt, arg...) dev_info(&(tb)->nhi->pdev->dev, fmt, ## arg)
-
+#define tb_dbg(tb, fmt, arg...) dev_dbg(&(tb)->nhi->pdev->dev, fmt, ## arg)
 
 #define __TB_SW_PRINT(level, sw, fmt, arg...)           \
 	do {                                            \
@@ -338,7 +338,7 @@ static inline int tb_port_write(struct tb_port *port, const void *buffer,
 #define tb_sw_WARN(sw, fmt, arg...) __TB_SW_PRINT(tb_WARN, sw, fmt, ##arg)
 #define tb_sw_warn(sw, fmt, arg...) __TB_SW_PRINT(tb_warn, sw, fmt, ##arg)
 #define tb_sw_info(sw, fmt, arg...) __TB_SW_PRINT(tb_info, sw, fmt, ##arg)
-
+#define tb_sw_dbg(sw, fmt, arg...) __TB_SW_PRINT(tb_dbg, sw, fmt, ##arg)
 
 #define __TB_PORT_PRINT(level, _port, fmt, arg...)                      \
 	do {                                                            \
@@ -352,6 +352,8 @@ static inline int tb_port_write(struct tb_port *port, const void *buffer,
 	__TB_PORT_PRINT(tb_warn, port, fmt, ##arg)
 #define tb_port_info(port, fmt, arg...) \
 	__TB_PORT_PRINT(tb_info, port, fmt, ##arg)
+#define tb_port_dbg(port, fmt, arg...) \
+	__TB_PORT_PRINT(tb_dbg, port, fmt, ##arg)
 
 struct tb *icm_probe(struct tb_nhi *nhi);
 struct tb *tb_probe(struct tb_nhi *nhi);
-- 
2.18.0

[PATCH v2 2/4] thunderbolt: Print connected devices

[Mika Westerberg]

The previous patch made the driver less verbose meanining that all the
switch structures and ports are now logged as debug level. However, we
have been missing similar output that USB for intance prints when a new
USB device is connected and disconnected. This information is useful for
end users as well as developers because it immediately shows the actual
device that was connected.

This patch adds printing of the actual connected devices to the driver.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/thunderbolt/switch.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 81134ee29578..9f44a2924dac 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -1402,6 +1402,14 @@ int tb_switch_add(struct tb_switch *sw)
 	if (ret)
 		return ret;
 
+	if (tb_route(sw)) {
+		dev_info(&sw->dev, "new device found, vendor=%#x device=%#x\n",
+			 sw->vendor, sw->device);
+		if (sw->vendor_name && sw->device_name)
+			dev_info(&sw->dev, "%s %s\n", sw->vendor_name,
+				 sw->device_name);
+	}
+
 	ret = tb_switch_nvm_add(sw);
 	if (ret) {
 		device_del(&sw->dev);
@@ -1453,6 +1461,9 @@ void tb_switch_remove(struct tb_switch *sw)
 		tb_plug_events_active(sw, false);
 
 	tb_switch_nvm_remove(sw);
+
+	if (tb_route(sw))
+		dev_info(&sw->dev, "device disconnected\n");
 	device_unregister(&sw->dev);
 }
 
-- 
2.18.0

[PATCH v2 3/4] thunderbolt: Convert rest of the driver files to use SPDX identifier

[Mika Westerberg]

This gets rid of the licence boilerplate duplicated in each file. While
there fix doubled space in domain.c author line.

No functional changes intended.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/thunderbolt/dma_port.c | 5 +----
 drivers/thunderbolt/dma_port.h | 5 +----
 drivers/thunderbolt/domain.c   | 7 ++-----
 drivers/thunderbolt/icm.c      | 5 +----
 drivers/thunderbolt/property.c | 5 +----
 drivers/thunderbolt/tb_msgs.h  | 5 +----
 drivers/thunderbolt/xdomain.c  | 5 +----
 include/linux/thunderbolt.h    | 5 +----
 8 files changed, 9 insertions(+), 33 deletions(-)

diff --git a/drivers/thunderbolt/dma_port.c b/drivers/thunderbolt/dma_port.c
index f2701194f810..847dd07a7b17 100644
--- a/drivers/thunderbolt/dma_port.c
+++ b/drivers/thunderbolt/dma_port.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt DMA configuration based mailbox support
  *
  * Copyright (C) 2017, Intel Corporation
  * Authors: Michael Jamet <michael.jamet@intel.com>
  *          Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/thunderbolt/dma_port.h b/drivers/thunderbolt/dma_port.h
index c4a69e0fbff7..7deadd97ce31 100644
--- a/drivers/thunderbolt/dma_port.h
+++ b/drivers/thunderbolt/dma_port.h
@@ -1,13 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt DMA configuration based mailbox support
  *
  * Copyright (C) 2017, Intel Corporation
  * Authors: Michael Jamet <michael.jamet@intel.com>
  *          Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef DMA_PORT_H_
diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
index 092381e2accf..93e562f18d40 100644
--- a/drivers/thunderbolt/domain.c
+++ b/drivers/thunderbolt/domain.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt bus support
  *
  * Copyright (C) 2017, Intel Corporation
- * Author:  Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
+ * Author: Mika Westerberg <mika.westerberg@linux.intel.com>
  */
 
 #include <linux/device.h>
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c
index e1e264a9a4c7..533068651f90 100644
--- a/drivers/thunderbolt/icm.c
+++ b/drivers/thunderbolt/icm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Internal Thunderbolt Connection Manager. This is a firmware running on
  * the Thunderbolt host controller performing most of the low-level
@@ -6,10 +7,6 @@
  * Copyright (C) 2017, Intel Corporation
  * Authors: Michael Jamet <michael.jamet@intel.com>
  *          Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/thunderbolt/property.c b/drivers/thunderbolt/property.c
index 8fe913a95b4a..b2f0d6386cee 100644
--- a/drivers/thunderbolt/property.c
+++ b/drivers/thunderbolt/property.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt XDomain property support
  *
  * Copyright (C) 2017, Intel Corporation
  * Authors: Michael Jamet <michael.jamet@intel.com>
  *          Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/err.h>
diff --git a/drivers/thunderbolt/tb_msgs.h b/drivers/thunderbolt/tb_msgs.h
index 2487e162c885..02c84aa3d018 100644
--- a/drivers/thunderbolt/tb_msgs.h
+++ b/drivers/thunderbolt/tb_msgs.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt control channel messages
  *
  * Copyright (C) 2014 Andreas Noever <andreas.noever@gmail.com>
  * Copyright (C) 2017, Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef _TB_MSGS
diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index db8bece63327..e27dd8beb94b 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt XDomain discovery protocol support
  *
  * Copyright (C) 2017, Intel Corporation
  * Authors: Michael Jamet <michael.jamet@intel.com>
  *          Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/device.h>
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h
index a3ed26082bc1..bf6ec83e60ee 100644
--- a/include/linux/thunderbolt.h
+++ b/include/linux/thunderbolt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt service API
  *
@@ -5,10 +6,6 @@
  * Copyright (C) 2017, Intel Corporation
  * Authors: Michael Jamet <michael.jamet@intel.com>
  *          Mika Westerberg <mika.westerberg@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef THUNDERBOLT_H_
-- 
2.18.0

[PATCH v2 4/4] thunderbolt: Add Intel as copyright holder

[Mika Westerberg]

Intel has done pretty major changes to the driver and we continue to do
so in the future as well. Add Intel as copyright holder of the files we
have done changes.

While there drop "Cactus Ridge" from the headers because this driver
works also with other Thunderbolt controllers.

No functional changes intended.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/thunderbolt/cap.c      | 3 ++-
 drivers/thunderbolt/ctl.c      | 3 ++-
 drivers/thunderbolt/ctl.h      | 3 ++-
 drivers/thunderbolt/eeprom.c   | 3 ++-
 drivers/thunderbolt/nhi.c      | 3 ++-
 drivers/thunderbolt/nhi.h      | 3 ++-
 drivers/thunderbolt/nhi_regs.h | 1 +
 drivers/thunderbolt/switch.c   | 3 ++-
 drivers/thunderbolt/tb.h       | 3 ++-
 drivers/thunderbolt/tb_regs.h  | 3 ++-
 10 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/thunderbolt/cap.c b/drivers/thunderbolt/cap.c
index c2277b8ee88d..9553305c63ea 100644
--- a/drivers/thunderbolt/cap.c
+++ b/drivers/thunderbolt/cap.c
@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Thunderbolt Cactus Ridge driver - capabilities lookup
+ * Thunderbolt driver - capabilities lookup
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #include <linux/slab.h>
diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index 2ab6033a0a3d..270fec96c603 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Thunderbolt Cactus Ridge driver - control channel and configuration commands
+ * Thunderbolt driver - control channel and configuration commands
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #include <linux/crc32.h>
diff --git a/drivers/thunderbolt/ctl.h b/drivers/thunderbolt/ctl.h
index 3062e0b5f71e..2f1a1e111110 100644
--- a/drivers/thunderbolt/ctl.h
+++ b/drivers/thunderbolt/ctl.h
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Thunderbolt Cactus Ridge driver - control channel and configuration commands
+ * Thunderbolt driver - control channel and configuration commands
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #ifndef _TB_CFG
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c
index d2dd40390783..81e8ac4c5805 100644
--- a/drivers/thunderbolt/eeprom.c
+++ b/drivers/thunderbolt/eeprom.c
@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Thunderbolt Cactus Ridge driver - eeprom access
+ * Thunderbolt driver - eeprom access
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #include <linux/crc32.h>
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 02379aa27120..2874f9400123 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -1,10 +1,11 @@
 /*
- * Thunderbolt Cactus Ridge driver - NHI driver
+ * Thunderbolt driver - NHI driver
  *
  * The NHI (native host interface) is the pci device that allows us to send and
  * receive frames from the thunderbolt bus.
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #include <linux/pm_runtime.h>
diff --git a/drivers/thunderbolt/nhi.h b/drivers/thunderbolt/nhi.h
index 1696a4560948..1b5d47ecd3ed 100644
--- a/drivers/thunderbolt/nhi.h
+++ b/drivers/thunderbolt/nhi.h
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Thunderbolt Cactus Ridge driver - NHI driver
+ * Thunderbolt driver - NHI driver
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #ifndef DSL3510_H_
diff --git a/drivers/thunderbolt/nhi_regs.h b/drivers/thunderbolt/nhi_regs.h
index b3e49d19c01e..a60bd98c1d04 100644
--- a/drivers/thunderbolt/nhi_regs.h
+++ b/drivers/thunderbolt/nhi_regs.h
@@ -3,6 +3,7 @@
  * Thunderbolt driver - NHI registers
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #ifndef NHI_REGS_H_
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 9f44a2924dac..52ff854f0d6c 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Thunderbolt Cactus Ridge driver - switch/port utility functions
+ * Thunderbolt driver - switch/port utility functions
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #include <linux/delay.h>
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 5a99245573c0..52584c4003e3 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Thunderbolt Cactus Ridge driver - bus logic (NHI independent)
+ * Thunderbolt driver - bus logic (NHI independent)
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #ifndef TB_H_
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h
index 693b0353c3fe..6f1ff04ee195 100644
--- a/drivers/thunderbolt/tb_regs.h
+++ b/drivers/thunderbolt/tb_regs.h
@@ -1,12 +1,13 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Thunderbolt Cactus Ridge driver - Port/Switch config area registers
+ * Thunderbolt driver - Port/Switch config area registers
  *
  * Every thunderbolt device consists (logically) of a switch with multiple
  * ports. Every port contains up to four config regions (HOPS, PORT, SWITCH,
  * COUNTERS) which are used to configure the device.
  *
  * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2018, Intel Corporation
  */
 
 #ifndef _TB_REGS
-- 
2.18.0

Re: [PATCH v2 0/4] thunderbolt: Miscellaneous cleanups

[Yehezkel Bernat]

On Mon, Sep 17, 2018 at 5:43 PM Mika Westerberg
<mika.westerberg@linux.intel.com> wrote:
>
> Hi all,
>
> Here are a couple of changes which have been in my TODO list some time
> already but have not had time to make a proper patch out of them until now.
>
> The only change to the previous version is that I realized it could be
> useful for users to see the actual connected devices (including their name
> which is read from DROM) printed to the system log. Hence the patch 2/4.
>
> Mika Westerberg (4):
>   thunderbolt: Make the driver less verbose
>   thunderbolt: Print connected devices
>   thunderbolt: Convert rest of the driver files to use SPDX identifier
>   thunderbolt: Add Intel as copyright holder
>
>  drivers/thunderbolt/cap.c      |  3 +-
>  drivers/thunderbolt/ctl.c      |  9 +++--
>  drivers/thunderbolt/ctl.h      |  3 +-
>  drivers/thunderbolt/dma_port.c |  5 +--
>  drivers/thunderbolt/dma_port.h |  5 +--
>  drivers/thunderbolt/domain.c   |  7 +---
>  drivers/thunderbolt/eeprom.c   |  5 ++-
>  drivers/thunderbolt/icm.c      |  5 +--
>  drivers/thunderbolt/nhi.c      | 33 ++++++++--------
>  drivers/thunderbolt/nhi.h      |  3 +-
>  drivers/thunderbolt/nhi_regs.h |  1 +
>  drivers/thunderbolt/path.c     | 26 ++++++-------
>  drivers/thunderbolt/property.c |  5 +--
>  drivers/thunderbolt/switch.c   | 71 +++++++++++++++++++---------------
>  drivers/thunderbolt/tb.c       | 10 ++---
>  drivers/thunderbolt/tb.h       |  9 +++--
>  drivers/thunderbolt/tb_msgs.h  |  5 +--
>  drivers/thunderbolt/tb_regs.h  |  3 +-
>  drivers/thunderbolt/xdomain.c  |  5 +--
>  include/linux/thunderbolt.h    |  5 +--
>  20 files changed, 107 insertions(+), 111 deletions(-)
>
> --
> 2.18.0
>

Acked-by: Yehezkel Bernat <yehezkelshb@gmail.com>

Re: [PATCH v2 0/4] thunderbolt: Miscellaneous cleanups

[Mika Westerberg]

On Thu, Sep 20, 2018 at 01:33:19PM +0300, Yehezkel Bernat wrote:
> On Mon, Sep 17, 2018 at 5:43 PM Mika Westerberg
> <mika.westerberg@linux.intel.com> wrote:
> >
> > Hi all,
> >
> > Here are a couple of changes which have been in my TODO list some time
> > already but have not had time to make a proper patch out of them until now.
> >
> > The only change to the previous version is that I realized it could be
> > useful for users to see the actual connected devices (including their name
> > which is read from DROM) printed to the system log. Hence the patch 2/4.
> >
> > Mika Westerberg (4):
> >   thunderbolt: Make the driver less verbose
> >   thunderbolt: Print connected devices
> >   thunderbolt: Convert rest of the driver files to use SPDX identifier
> >   thunderbolt: Add Intel as copyright holder
> >
> >  drivers/thunderbolt/cap.c      |  3 +-
> >  drivers/thunderbolt/ctl.c      |  9 +++--
> >  drivers/thunderbolt/ctl.h      |  3 +-
> >  drivers/thunderbolt/dma_port.c |  5 +--
> >  drivers/thunderbolt/dma_port.h |  5 +--
> >  drivers/thunderbolt/domain.c   |  7 +---
> >  drivers/thunderbolt/eeprom.c   |  5 ++-
> >  drivers/thunderbolt/icm.c      |  5 +--
> >  drivers/thunderbolt/nhi.c      | 33 ++++++++--------
> >  drivers/thunderbolt/nhi.h      |  3 +-
> >  drivers/thunderbolt/nhi_regs.h |  1 +
> >  drivers/thunderbolt/path.c     | 26 ++++++-------
> >  drivers/thunderbolt/property.c |  5 +--
> >  drivers/thunderbolt/switch.c   | 71 +++++++++++++++++++---------------
> >  drivers/thunderbolt/tb.c       | 10 ++---
> >  drivers/thunderbolt/tb.h       |  9 +++--
> >  drivers/thunderbolt/tb_msgs.h  |  5 +--
> >  drivers/thunderbolt/tb_regs.h  |  3 +-
> >  drivers/thunderbolt/xdomain.c  |  5 +--
> >  include/linux/thunderbolt.h    |  5 +--
> >  20 files changed, 107 insertions(+), 111 deletions(-)
> >
> > --
> > 2.18.0
> >
> 
> Acked-by: Yehezkel Bernat <yehezkelshb@gmail.com>

Thanks! Applied all to thunderbolt.git/next.