drm/nv30: Apply modesetting to the correct slave encoder

Signed-off-by: Patrice Mandin <patmandin@gmail.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c
index a5dcf76..ea89f6e 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv04_dfp.c
+++ b/drivers/gpu/drm/nouveau/nv04_dfp.c
@@ -444,6 +444,7 @@ static void nv04_dfp_commit(struct drm_encoder *encoder)
        struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
        struct dcb_entry *dcbe = nv_encoder->dcb;
        int head = nouveau_crtc(encoder->crtc)->index;
+       struct drm_encoder *slave_encoder;
 
        if (dcbe->type == OUTPUT_TMDS)
                run_tmds_table(dev, dcbe, head, nv_encoder->mode.clock);
@@ -462,9 +463,10 @@ static void nv04_dfp_commit(struct drm_encoder *encoder)
                NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + nv04_dac_output_offset(encoder), 0x00100000);
 
        /* Init external transmitters */
-       if (get_tmds_slave(encoder))
-               get_slave_funcs(get_tmds_slave(encoder))->mode_set(
-                       encoder, &nv_encoder->mode, &nv_encoder->mode);
+       slave_encoder = get_tmds_slave(encoder);
+       if (slave_encoder)
+               get_slave_funcs(slave_encoder)->mode_set(
+                       slave_encoder, &nv_encoder->mode, &nv_encoder->mode);
 
        helper->dpms(encoder, DRM_MODE_DPMS_ON);