From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: linux-usb@vger.kernel.org
Cc: Michael Jamet <michael.jamet@intel.com>,
Yehezkel Bernat <YehezkelShB@gmail.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Andreas Noever <andreas.noever@gmail.com>,
Rajmohan Mani <rajmohan.mani@intel.com>,
Dana Alkattan <dana.alkattan@intel.com>,
Lukas Wunner <lukas@wunner.de>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
Bjorn Helgaas <bhelgaas@google.com>, Len Brown <lenb@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org
Subject: [PATCH 07/19] thunderbolt: Send reset only to first generation routers
Date: Wed, 19 Aug 2020 14:58:53 +0300 [thread overview]
Message-ID: <20200819115905.59834-8-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20200819115905.59834-1-mika.westerberg@linux.intel.com>
First generation routers may need the reset command upon resume but it
is not supported by newer generations.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/thunderbolt/switch.c | 21 +++++++++++----------
drivers/thunderbolt/tb.c | 2 +-
drivers/thunderbolt/tb.h | 2 +-
3 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 72756c8ceead..fb30ea1dfc31 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -1234,23 +1234,24 @@ static void tb_dump_switch(const struct tb *tb, const struct tb_switch *sw)
/**
* reset_switch() - reconfigure route, enable and send TB_CFG_PKG_RESET
+ * @sw: Switch to reset
*
* Return: Returns 0 on success or an error code on failure.
*/
-int tb_switch_reset(struct tb *tb, u64 route)
+int tb_switch_reset(struct tb_switch *sw)
{
struct tb_cfg_result res;
- struct tb_regs_switch_header header = {
- header.route_hi = route >> 32,
- header.route_lo = route,
- header.enabled = true,
- };
- 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 (sw->generation > 1)
+ return 0;
+
+ tb_sw_dbg(sw, "resetting switch\n");
+
+ res.err = tb_sw_write(sw, ((u32 *) &sw->config) + 2,
+ TB_CFG_SWITCH, 2, 2);
if (res.err)
return res.err;
- res = tb_cfg_reset(tb->ctl, route, TB_CFG_DEFAULT_TIMEOUT);
+ res = tb_cfg_reset(sw->tb->ctl, tb_route(sw), TB_CFG_DEFAULT_TIMEOUT);
if (res.err > 0)
return -EIO;
return res.err;
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 98f268a818a0..a6da2d0567ae 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -1258,7 +1258,7 @@ static int tb_resume_noirq(struct tb *tb)
tb_dbg(tb, "resuming...\n");
/* remove any pci devices the firmware might have setup */
- tb_switch_reset(tb, 0);
+ tb_switch_reset(tb->root_switch);
tb_switch_resume(tb->root_switch);
tb_free_invalid_tunnels(tb);
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index df08f6d7aaa0..69e78bbed53a 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -634,7 +634,7 @@ int tb_switch_add(struct tb_switch *sw);
void tb_switch_remove(struct tb_switch *sw);
void tb_switch_suspend(struct tb_switch *sw);
int tb_switch_resume(struct tb_switch *sw);
-int tb_switch_reset(struct tb *tb, u64 route);
+int tb_switch_reset(struct tb_switch *sw);
void tb_sw_set_unplugged(struct tb_switch *sw);
struct tb_port *tb_switch_find_port(struct tb_switch *sw,
enum tb_port_type type);
--
2.28.0
next prev parent reply other threads:[~2020-08-19 12:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-19 11:58 [PATCH 00/19] thunderbolt: Power Management improvements Mika Westerberg
2020-08-19 11:58 ` [PATCH 01/19] thunderbolt: Optimize Force Power logic Mika Westerberg
2020-08-19 11:58 ` [PATCH 02/19] thunderbolt: Optimize NHI LC mailbox command processing Mika Westerberg
2020-08-19 11:58 ` [PATCH 03/19] thunderbolt: Software CM only should set force power in Tiger Lake Mika Westerberg
2020-08-19 11:58 ` [PATCH 04/19] thunderbolt: Use bit 31 to check if Firmware CM is running " Mika Westerberg
2020-08-19 11:58 ` [PATCH 05/19] thunderbolt: Do not program NFC buffers for USB4 router protocol adapters Mika Westerberg
2020-08-19 11:58 ` [PATCH 06/19] thunderbolt: No need to log an error if tb_switch_lane_bonding_enable() fails Mika Westerberg
2020-08-19 11:58 ` Mika Westerberg [this message]
2020-08-19 11:58 ` [PATCH 08/19] thunderbolt: Tear down DP tunnels when suspending Mika Westerberg
2020-08-19 11:58 ` [PATCH 09/19] thunderbolt: Initialize TMU again on resume Mika Westerberg
2020-08-19 11:58 ` [PATCH 10/19] thunderbolt: Do not change default USB4 router notification timeout Mika Westerberg
2020-08-19 11:58 ` [PATCH 11/19] thunderbolt: Configure link after lane bonding is enabled Mika Westerberg
2020-08-19 11:58 ` [PATCH 12/19] thunderbolt: Set port configured for both ends of the link Mika Westerberg
2020-08-19 11:58 ` [PATCH 13/19] thunderbolt: Configure port for XDomain Mika Westerberg
2020-08-19 11:59 ` [PATCH 14/19] thunderbolt: Disable lane 1 for XDomain connection Mika Westerberg
2020-08-19 11:59 ` [PATCH 15/19] thunderbolt: Enable wakes from system suspend Mika Westerberg
2020-08-19 11:59 ` [PATCH 16/19] PCI / thunderbolt: Switch to use device links instead of PCI quirk Mika Westerberg
2020-08-20 17:24 ` Bjorn Helgaas
2020-08-19 11:59 ` [PATCH 17/19] ACPI: Export acpi_get_first_physical_node() to modules Mika Westerberg
2020-08-19 11:59 ` [PATCH 18/19] thunderbolt: Create device links from ACPI description Mika Westerberg
2020-08-19 11:59 ` [PATCH 19/19] thunderbolt: Add runtime PM for Software CM Mika Westerberg
2020-09-03 9:15 ` [PATCH 00/19] thunderbolt: Power Management improvements Mika Westerberg
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200819115905.59834-8-mika.westerberg@linux.intel.com \
--to=mika.westerberg@linux.intel.com \
--cc=YehezkelShB@gmail.com \
--cc=andreas.noever@gmail.com \
--cc=bhelgaas@google.com \
--cc=dana.alkattan@intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=lukas@wunner.de \
--cc=michael.jamet@intel.com \
--cc=rafael.j.wysocki@intel.com \
--cc=rajmohan.mani@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox