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drm/i915: Program pch transcoder m2/n2

Browse source 
Program the PCH transcoder M2/N2 values appropriately. We're
still missing a few things for PCH port DRRS but at least this
means we can do readout/state check for dp_m2_n2 unconditionally.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220128103757.22461-15-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2022-01-28 12:37:54 +02:00
parent 1d06c820b2
commit 23015f6f90
3 changed files with 36 additions and 9 deletions
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3
drivers/gpu/drm/i915/display/g4x_dp.c
View file

@ -339,7 +339,8 @@ static void g4x_dp_get_m_n(struct intel_crtc_state *crtc_state)
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
if (crtc_state->has_pch_encoder) {
intel_pch_transcoder_get_m_n(crtc, &crtc_state->dp_m_n);
intel_pch_transcoder_get_m1_n1(crtc, &crtc_state->dp_m_n);
intel_pch_transcoder_get_m2_n2(crtc, &crtc_state->dp_m2_n2);
} else {
intel_cpu_transcoder_get_m1_n1(crtc, crtc_state->cpu_transcoder,
&crtc_state->dp_m_n);

36
drivers/gpu/drm/i915/display/intel_pch_display.c
View file

@ -88,8 +88,8 @@ static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
pipe_name(pipe));
}
static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
const struct intel_link_m_n *m_n)
static void intel_pch_transcoder_set_m1_n1(struct intel_crtc *crtc,
const struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
@ -99,8 +99,19 @@ static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
PCH_TRANS_LINK_M1(pipe), PCH_TRANS_LINK_N1(pipe));
}
void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
struct intel_link_m_n *m_n)
static void intel_pch_transcoder_set_m2_n2(struct intel_crtc *crtc,
const struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
intel_set_m_n(dev_priv, m_n,
PCH_TRANS_DATA_M2(pipe), PCH_TRANS_DATA_N2(pipe),
PCH_TRANS_LINK_M2(pipe), PCH_TRANS_LINK_N2(pipe));
}
void intel_pch_transcoder_get_m1_n1(struct intel_crtc *crtc,
struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
@ -110,6 +121,17 @@ void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
PCH_TRANS_LINK_M1(pipe), PCH_TRANS_LINK_N1(pipe));
}
void intel_pch_transcoder_get_m2_n2(struct intel_crtc *crtc,
struct intel_link_m_n *m_n)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
intel_get_m_n(dev_priv, m_n,
PCH_TRANS_DATA_M2(pipe), PCH_TRANS_DATA_N2(pipe),
PCH_TRANS_LINK_M2(pipe), PCH_TRANS_LINK_N2(pipe));
}
static void ilk_pch_transcoder_set_timings(const struct intel_crtc_state *crtc_state,
enum pipe pch_transcoder)
{
@ -300,8 +322,10 @@ void ilk_pch_enable(struct intel_atomic_state *state,
/* set transcoder timing, panel must allow it */
assert_pps_unlocked(dev_priv, pipe);
if (intel_crtc_has_dp_encoder(crtc_state))
intel_pch_transcoder_set_m_n(crtc, &crtc_state->dp_m_n);
if (intel_crtc_has_dp_encoder(crtc_state)) {
intel_pch_transcoder_set_m1_n1(crtc, &crtc_state->dp_m_n);
intel_pch_transcoder_set_m2_n2(crtc, &crtc_state->dp_m2_n2);
}
ilk_pch_transcoder_set_timings(crtc_state, pipe);
intel_fdi_normal_train(crtc);

6
drivers/gpu/drm/i915/display/intel_pch_display.h
View file

@ -27,7 +27,9 @@ void lpt_pch_disable(struct intel_atomic_state *state,
struct intel_crtc *crtc);
void lpt_pch_get_config(struct intel_crtc_state *crtc_state);
void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
struct intel_link_m_n *m_n);
void intel_pch_transcoder_get_m1_n1(struct intel_crtc *crtc,
struct intel_link_m_n *m_n);
void intel_pch_transcoder_get_m2_n2(struct intel_crtc *crtc,
struct intel_link_m_n *m_n);
#endif