diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2022-10-07 16:53:58 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-06-09 12:07:23 +0300 |
| commit | 20c2fae9dbe35134e98679181faa611cc69c6c30 (patch) | |
| tree | b98ae36496614e3bb8b5782654e3d5a9bcaf19de /drivers/thunderbolt | |
| parent | 7d283f4148f184b200854acdc21308e5bfee9fc1 (diff) | |
| download | linux-20c2fae9dbe35134e98679181faa611cc69c6c30.tar.gz | |
thunderbolt: Move TMU configuration to tb_enable_tmu()
There is no need to duplicate the code the enables TMU. Also update the
comment to better explain why we do this in the first place.
No functional changes.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 39ec7094fe17f8..0630b877136e90 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -387,6 +387,16 @@ static int tb_enable_tmu(struct tb_switch *sw) { int ret; + /* + * If CL1 is enabled then we need to configure the TMU accuracy + * level to normal. Otherwise we keep the TMU running at the + * highest accuracy. + */ + if (tb_switch_is_clx_enabled(sw, TB_CL1)) + tb_switch_tmu_configure(sw, TB_SWITCH_TMU_RATE_NORMAL, true); + else + tb_switch_tmu_configure(sw, TB_SWITCH_TMU_RATE_HIFI, false); + /* If it is already enabled in correct mode, don't touch it */ if (tb_switch_tmu_is_enabled(sw)) return 0; @@ -873,16 +883,6 @@ static void tb_scan_port(struct tb_port *port) tb_switch_clx_name(TB_CL1)); } - if (tb_switch_is_clx_enabled(sw, TB_CL1)) - /* - * To support highest CLx state, we set router's TMU to - * Normal-Uni mode. - */ - tb_switch_tmu_configure(sw, TB_SWITCH_TMU_RATE_NORMAL, true); - else - /* If CLx disabled, configure router's TMU to HiFi-Bidir mode*/ - tb_switch_tmu_configure(sw, TB_SWITCH_TMU_RATE_HIFI, false); - if (tb_enable_tmu(sw)) tb_sw_warn(sw, "failed to enable TMU\n"); @@ -2035,16 +2035,6 @@ static void tb_restore_children(struct tb_switch *sw) tb_sw_warn(sw, "failed to re-enable %s on upstream port\n", tb_switch_clx_name(TB_CL1)); - if (tb_switch_is_clx_enabled(sw, TB_CL1)) - /* - * To support highest CLx state, we set router's TMU to - * Normal-Uni mode. - */ - tb_switch_tmu_configure(sw, TB_SWITCH_TMU_RATE_NORMAL, true); - else - /* If CLx disabled, configure router's TMU to HiFi-Bidir mode*/ - tb_switch_tmu_configure(sw, TB_SWITCH_TMU_RATE_HIFI, false); - if (tb_enable_tmu(sw)) tb_sw_warn(sw, "failed to restore TMU configuration\n"); |