diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dpll_mgr.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c index 361b7102b602..51c5ae4e9116 100644 --- a/drivers/gpu/drm/i915/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c @@ -2153,6 +2153,8 @@ static void cnl_wrpll_params_populate(struct skl_wrpll_params *params, u32 dco_freq, u32 ref_freq, int pdiv, int qdiv, int kdiv) { + u32 dco; + switch (kdiv) { case 1: params->kdiv = 1; @@ -2189,9 +2191,10 @@ static void cnl_wrpll_params_populate(struct skl_wrpll_params *params, params->qdiv_ratio = qdiv; params->qdiv_mode = (qdiv == 1) ? 0 : 1; - params->dco_integer = div_u64(dco_freq, ref_freq); - params->dco_fraction = div_u64((div_u64((uint64_t)dco_freq<<15, (uint64_t)ref_freq) - - ((uint64_t)params->dco_integer<<15)) * 0x8000, 0x8000); + dco = div_u64((u64)dco_freq << 15, ref_freq); + + params->dco_integer = dco >> 15; + params->dco_fraction = dco & 0x7fff; } static bool |