diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_cdclk.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index 8993ab283562..c8ebd31f7c24 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -1756,9 +1756,10 @@ sanitize: static int icl_calc_cdclk(int min_cdclk, unsigned int ref) { - int ranges_24[] = { 312000, 552000, 648000 }; - int ranges_19_38[] = { 307200, 556800, 652800 }; - int *ranges; + static const int ranges_24[] = { 180000, 192000, 312000, 552000, 648000 }; + static const int ranges_19_38[] = { 172800, 192000, 307200, 556800, 652800 }; + const int *ranges; + int len, i; switch (ref) { default: @@ -1766,19 +1767,22 @@ static int icl_calc_cdclk(int min_cdclk, unsigned int ref) /* fall through */ case 24000: ranges = ranges_24; + len = ARRAY_SIZE(ranges_24); break; case 19200: case 38400: ranges = ranges_19_38; + len = ARRAY_SIZE(ranges_19_38); break; } - if (min_cdclk > ranges[1]) - return ranges[2]; - else if (min_cdclk > ranges[0]) - return ranges[1]; - else - return ranges[0]; + for (i = 0; i < len; i++) { + if (min_cdclk <= ranges[i]) + return ranges[i]; + } + + WARN_ON(min_cdclk > ranges[len - 1]); + return ranges[len - 1]; } static int icl_calc_cdclk_pll_vco(struct drm_i915_private *dev_priv, int cdclk) @@ -1792,16 +1796,24 @@ static int icl_calc_cdclk_pll_vco(struct drm_i915_private *dev_priv, int cdclk) default: MISSING_CASE(cdclk); /* fall through */ + case 172800: case 307200: case 556800: case 652800: WARN_ON(dev_priv->cdclk.hw.ref != 19200 && dev_priv->cdclk.hw.ref != 38400); break; + case 180000: case 312000: case 552000: case 648000: WARN_ON(dev_priv->cdclk.hw.ref != 24000); + break; + case 192000: + WARN_ON(dev_priv->cdclk.hw.ref != 19200 && + dev_priv->cdclk.hw.ref != 38400 && + dev_priv->cdclk.hw.ref != 24000); + break; } ratio = cdclk / (dev_priv->cdclk.hw.ref / 2); |