mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-05 19:24:01 -04:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231128115138.13238-3-ville.syrjala@linux.intel.com
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
This commit is contained in:
Ville Syrjälä
2023-11-28 13:51:32 +02:00
parent e2e1916008
commit 2581547335
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/display/intel_cdclk.c
View File

@@ -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 */