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drm/i915: Introduce .{enable,disable}_clock() encoder vfuncs

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The current code dealing with the clock routing for DDI encoders
is a maintenance nightmare. Let's start cleaning it up by allowing
the encoder to provide vfuncs for enablign/disabling the clock.

We leave them initially unimplemented, falling back to the old
if-else approach.

v2: Convert the FDI enable sequence

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> #v2
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210205214634.19341-3-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä
2021-02-05 23:46:21 +02:00
parent ad9529824c
commit c133df6994
4 changed files with 32 additions and 9 deletions
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2
drivers/gpu/drm/i915/display/intel_fdi.c
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@@ -596,7 +596,7 @@ void hsw_fdi_link_train(struct intel_encoder *encoder,
/* Configure Port Clock Select */
drm_WARN_ON(&dev_priv->drm, crtc_state->shared_dpll->info->id != DPLL_ID_SPLL);
intel_ddi_clk_select(encoder, crtc_state);
intel_ddi_enable_clock(encoder, crtc_state);
/* Start the training iterating through available voltages and emphasis,
* testing each value twice. */