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authorVille Syrjälä <ville.syrjala@linux.intel.com>2020-10-29 00:33:09 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2020-10-30 15:47:46 +0300
commit570fe6ef6a2882f63319513baac05eeba93bb0dc (patch)
tree1e72f797971f82fbce6ac758130902bc1afeca22 /drivers/gpu
parentdf034b973da068664f8f94aa01b11e59a9608d65 (diff)
downloadlinux-570fe6ef6a2882f63319513baac05eeba93bb0dc.tar.xz
drm/i915: Pimp AUX CH names
Let's make the AUX CH names match the spec (AUX A-F for pre-tgl, AUX A-C or AUX USBC1-6 for tgl+). And while at it let's include the full encoder name in the AUX CH name as well (as opposed to just using port_name() which wouldn't give us the right thing on tgl+). Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201028213323.5423-6-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b4f824383fe0..cf09aca7607b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1859,6 +1859,7 @@ intel_dp_aux_init(struct intel_dp *intel_dp)
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
struct intel_encoder *encoder = &dig_port->base;
+ enum aux_ch aux_ch = dig_port->aux_ch;
if (INTEL_GEN(dev_priv) >= 12) {
intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
@@ -1891,9 +1892,15 @@ intel_dp_aux_init(struct intel_dp *intel_dp)
drm_dp_aux_init(&intel_dp->aux);
/* Failure to allocate our preferred name is not critical */
- intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %c/port %c",
- aux_ch_name(dig_port->aux_ch),
- port_name(encoder->port));
+ if (INTEL_GEN(dev_priv) >= 12 && aux_ch >= AUX_CH_USBC1)
+ intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX USBC%c/%s",
+ aux_ch - AUX_CH_USBC1 + '1',
+ encoder->base.name);
+ else
+ intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %c/%s",
+ aux_ch_name(aux_ch),
+ encoder->base.name);
+
intel_dp->aux.transfer = intel_dp_aux_transfer;
}