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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2019-12-17 13:33:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-18 15:34:25 +0100 |
| commit | 210e9f56e9e12472741b949950f9efcebf350750 (patch) | |
| tree | 43195c50eb15ca7bbc79daabdbb19cd881daa74c /drivers/thunderbolt/tb.c | |
| parent | thunderbolt: Call tb_eeprom_get_drom_offset() from tb_eeprom_read_n() (diff) | |
| download | linux-210e9f56e9e12472741b949950f9efcebf350750.tar.xz linux-210e9f56e9e12472741b949950f9efcebf350750.zip | |
thunderbolt: Populate PG field in hot plug acknowledgment packet
USB4 1.0 section 6.4.2.7 specifies a new field (PG) in notification
packet that is sent as response of hot plug/unplug events. This field
tells whether the acknowledgment is for plug or unplug event. This needs
to be set accordingly in order the router to send further hot plug
notifications.
To make it simpler we fill the field unconditionally. Legacy devices do
not look at this field so there should be no problems with them.
While there rename tb_cfg_error() to tb_cfg_ack_plug() and update the
log message accordingly. The function is only used to ack plug/unplug
events.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20191217123345.31850-4-mika.westerberg@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/tb.c')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 54085f67810a..e54d0d89a32d 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -768,8 +768,7 @@ static void tb_handle_event(struct tb *tb, enum tb_cfg_pkg_type type, route = tb_cfg_get_route(&pkg->header); - if (tb_cfg_error(tb->ctl, route, pkg->port, - TB_CFG_ERROR_ACK_PLUG_EVENT)) { + if (tb_cfg_ack_plug(tb->ctl, route, pkg->port, pkg->unplug)) { tb_warn(tb, "could not ack plug event on %llx:%x\n", route, pkg->port); } |