Commit 25815473 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/cdclk: Give the squash waveform length a name 



Replace the slightly magic 'size = 16' with a bit more descriptive
name. We'll have another user for this value later on.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231128115138.13238-3-ville.syrjala@linux.intel.com


Reviewed-by: default avatarGustavo Sousa <gustavo.sousa@intel.com>
parent e2e19160

drivers/gpu/drm/i915/display/intel_cdclk.c

+4 −2
Original line number Diff line number Diff line
@@ -1800,6 +1800,8 @@ static bool cdclk_pll_is_unknown(unsigned int vco) 
	return vco == ~0;

}



static const int cdclk_squash_len = 16;



static int cdclk_squash_divider(u16 waveform)

{

	return hweight16(waveform ?: 0xffff);
@@ -1811,7 +1813,6 @@ static bool cdclk_compute_crawl_and_squash_midpoint(struct drm_i915_private *i91 
						    struct intel_cdclk_config *mid_cdclk_config)

{

	u16 old_waveform, new_waveform, mid_waveform;

	int size = 16;

	int div = 2;



	/* Return if PLL is in an unknown state, force a complete disable and re-enable. */
@@ -1850,7 +1851,8 @@ static bool cdclk_compute_crawl_and_squash_midpoint(struct drm_i915_private *i91 
	}



	mid_cdclk_config->cdclk = DIV_ROUND_CLOSEST(cdclk_squash_divider(mid_waveform) *

						    mid_cdclk_config->vco, size * div);

						    mid_cdclk_config->vco,

						    cdclk_squash_len * div);



	/* make sure the mid clock came out sane */