diff --git a/src/imagination/vulkan/pvr_usc.c b/src/imagination/vulkan/pvr_usc.c
index f5913c86c01..7fb7003121f 100644
--- a/src/imagination/vulkan/pvr_usc.c
+++ b/src/imagination/vulkan/pvr_usc.c
@@ -658,7 +658,7 @@ static nir_def *resolve_samples(nir_builder *b,
 
    switch (resolve_op) {
    case PVR_RESOLVE_BLEND:
-      op = nir_op_ffma_old;
+      op = nir_op_ffma_weak;
       coeff = nir_imm_float(b, 1.0 / num_samples);
       break;
 
@@ -683,7 +683,7 @@ static nir_def *resolve_samples(nir_builder *b,
 
    for (unsigned i = 1; i < num_samples; i++) {
       if (resolve_op == PVR_RESOLVE_BLEND)
-         accum = nir_ffma_old(b, samples[i], coeff, accum);
+         accum = nir_ffma_weak(b, samples[i], coeff, accum);
       else
          accum = nir_build_alu2(b, op, samples[i], accum);
    }
@@ -866,7 +866,7 @@ pvr_uscgen_tq_frag_coords(nir_builder *b,
          nir_vec2(b,
                   nir_load_preamble(b, 1, 32, .base = *next_sh + base_sh + 1),
                   nir_load_preamble(b, 1, 32, .base = *next_sh + base_sh + 3));
-      coords = nir_fmad_old(b, coords, mult, add);
+      coords = nir_ffma_weak(b, coords, mult, add);
       *next_sh += 4;
    }