[Intel-gfx] [PATCH 4/7] drm/i915/bios: use alternate aux channel directly from child data

Jani Nikula
2021-08-24T13:34:55Z

Avoid extra caching of the data.

Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/display/intel_bios.c | 26 +++++++++++------------
drivers/gpu/drm/i915/i915_drv.h | 1 -
2 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 10b2beddc121..674f1424fcc2 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1565,28 +1565,29 @@ static enum port get_port_by_aux_ch(struct drm_i915_private *i915, u8 aux_ch)
for_each_port(port) {
info = &i915->vbt.ddi_port_info[port];

- if (info->devdata && aux_ch == info->alternate_aux_channel)
+ if (info->devdata && aux_ch == info->devdata->child.aux_channel)
return port;
}

return PORT_NONE;
}

-static void sanitize_aux_ch(struct drm_i915_private *i915,
+static void sanitize_aux_ch(struct intel_bios_encoder_data *devdata,
enum port port)
{
- struct ddi_vbt_port_info *info = &i915->vbt.ddi_port_info[port];
+ struct drm_i915_private *i915 = devdata->i915;
+ struct ddi_vbt_port_info *info;
struct child_device_config *child;
enum port p;

- p = get_port_by_aux_ch(i915, info->alternate_aux_channel);
+ p = get_port_by_aux_ch(i915, devdata->child.aux_channel);
if (p == PORT_NONE)
return;

drm_dbg_kms(&i915->drm,
"port %c trying to use the same AUX CH (0x%x) as port %c, "
"disabling port %c DP support\n",
- port_name(port), info->alternate_aux_channel,
+ port_name(port), devdata->child.aux_channel,
port_name(p), port_name(p));

/*
@@ -1602,7 +1603,7 @@ static void sanitize_aux_ch(struct drm_i915_private *i915,
child = &info->devdata->child;

child->device_type &= ~DEVICE_TYPE_DISPLAYPORT_OUTPUT;
- info->alternate_aux_channel = 0;
+ child->aux_channel = 0;
}

static const u8 cnp_ddc_pin_map[] = {
@@ -1980,11 +1981,8 @@ static void parse_ddi_port(struct drm_i915_private *i915,
}
}

- if (is_dp) {
- info->alternate_aux_channel = child->aux_channel;
-
- sanitize_aux_ch(i915, port);
- }
+ if (is_dp)
+ sanitize_aux_ch(devdata, port);

hdmi_level_shift = _intel_bios_hdmi_level_shift(devdata);
if (hdmi_level_shift >= 0) {
@@ -2863,7 +2861,7 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
&i915->vbt.ddi_port_info[port];
enum aux_ch aux_ch;

- if (!info->alternate_aux_channel) {
+ if (!info->devdata->child.aux_channel) {
aux_ch = (enum aux_ch)port;

drm_dbg_kms(&i915->drm,
@@ -2879,7 +2877,7 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
* ADL-S VBT uses PHY based mapping. Combo PHYs A,B,C,D,E
* map to DDI A,TC1,TC2,TC3,TC4 respectively.
*/
- switch (info->alternate_aux_channel) {
+ switch (info->devdata->child.aux_channel) {
case DP_AUX_A:
aux_ch = AUX_CH_A;
break;
@@ -2940,7 +2938,7 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
aux_ch = AUX_CH_I;
break;
default:
- MISSING_CASE(info->alternate_aux_channel);
+ MISSING_CASE(info->devdata->child.aux_channel);
aux_ch = AUX_CH_A;
break;
}
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a0dead9f9222..91097526cd96 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -640,7 +640,6 @@ struct ddi_vbt_port_info {
/* Non-NULL if port present. */
struct intel_bios_encoder_data *devdata;

- u8 alternate_aux_channel;
u8 alternate_ddc_pin;
};

--
2.20.1