github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 04:56:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915/tc: Factor out helpers converting HPD mask to TC mode

Browse Source 
Factor out helpers used later in the patchset to convert an HPD
status mask to TC mode or target TC mode.

No functional changes.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316131724.359612-7-imre.deak@intel.com
This commit is contained in:
Imre Deak 2023-03-16 15:17:16 +02:00
parent b25f551ae1
commit 4e936b6521
1 changed files with 33 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/gpu/drm/i915/display/intel_tc.c
View File

@ -591,11 +591,28 @@ static void tc_phy_wait_for_ready(struct intel_digital_port *dig_port)
dig_port->tc_port_name);
}
static enum tc_port_mode
hpd_mask_to_tc_mode(u32 live_status_mask)
{
if (live_status_mask)
return fls(live_status_mask) - 1;
return TC_PORT_DISCONNECTED;
}
static enum tc_port_mode
tc_phy_hpd_live_mode(struct intel_digital_port *dig_port)
{
u32 live_status_mask = tc_port_live_status_mask(dig_port);
return hpd_mask_to_tc_mode(live_status_mask);
}
static enum tc_port_mode
intel_tc_port_get_current_mode(struct intel_digital_port *dig_port)
{
struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
u32 live_status_mask = tc_port_live_status_mask(dig_port);
enum tc_port_mode live_mode = tc_phy_hpd_live_mode(dig_port);
enum tc_port_mode mode;
/*
@ -611,25 +628,30 @@ intel_tc_port_get_current_mode(struct intel_digital_port *dig_port)
return TC_PORT_TBT_ALT;
mode = dig_port->tc_legacy_port ? TC_PORT_LEGACY : TC_PORT_DP_ALT;
if (live_status_mask) {
enum tc_port_mode live_mode = fls(live_status_mask) - 1;
if (!drm_WARN_ON(&i915->drm, live_mode == TC_PORT_TBT_ALT))
mode = live_mode;
}
if (live_mode != TC_PORT_DISCONNECTED &&
!drm_WARN_ON(&i915->drm, live_mode == TC_PORT_TBT_ALT))
mode = live_mode;
return mode;
}
static enum tc_port_mode
hpd_mask_to_target_mode(u32 live_status_mask)
{
enum tc_port_mode mode = hpd_mask_to_tc_mode(live_status_mask);
if (mode != TC_PORT_DISCONNECTED)
return mode;
return TC_PORT_TBT_ALT;
}
static enum tc_port_mode
intel_tc_port_get_target_mode(struct intel_digital_port *dig_port)
{
u32 live_status_mask = tc_port_live_status_mask(dig_port);
if (live_status_mask)
return fls(live_status_mask) - 1;
return TC_PORT_TBT_ALT;
return hpd_mask_to_target_mode(live_status_mask);
}
static void intel_tc_port_reset_mode(struct intel_digital_port *dig_port,