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drm/i915: Extract intel_crtc_dotclock()

Browse source 
Extract intel_crtc_dotclock() from ddi_dotclock_get(). We'll reuse
this during state computation in order to determine the actual final
dotclcok after the DPLL computation has been done (which may not give
us the exact same port_clock that we fed in).

v2: Add the prototype

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504123350.13235-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2022-05-04 15:33:50 +03:00
parent 5c57c099f4
commit 623411c293
2 changed files with 13 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
drivers/gpu/drm/i915/display/intel_ddi.c
View file

@ -323,14 +323,10 @@ static int icl_calc_tbt_pll_link(struct drm_i915_private *dev_priv,
}
}
static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config)
{
int dotclock;
/* CRT dotclock is determined via other means */
if (pipe_config->has_pch_encoder)
return;
if (intel_crtc_has_dp_encoder(pipe_config))
dotclock = intel_dotclock_calculate(pipe_config->port_clock,
&pipe_config->dp_m_n);
@ -346,7 +342,17 @@ static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
if (pipe_config->pixel_multiplier)
dotclock /= pipe_config->pixel_multiplier;
pipe_config->hw.adjusted_mode.crtc_clock = dotclock;
return dotclock;
}
static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
{
/* CRT dotclock is determined via other means */
if (pipe_config->has_pch_encoder)
return;
pipe_config->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(pipe_config);
}
void intel_ddi_set_dp_msa(const struct intel_crtc_state *crtc_state,

1
drivers/gpu/drm/i915/display/intel_display.h
View file

@ -635,6 +635,7 @@ void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc,
void i9xx_crtc_clock_get(struct intel_crtc *crtc,
struct intel_crtc_state *pipe_config);
int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config);
enum intel_display_power_domain intel_port_to_power_domain(struct intel_digital_port *dig_port);
enum intel_display_power_domain
intel_aux_power_domain(struct intel_digital_port *dig_port);