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drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP

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Fixes OOPS on boards with ANX9805 DP encoders.

Cc: stable@vger.kernel.org # 6.4+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719044051.6975-3-skeggsb@gmail.com
This commit is contained in:
Ben Skeggs 2023-07-19 14:40:51 +10:00 committed by Karol Herbst
parent 2b5d1c29f6
commit ea293f823a
1 changed files with 4 additions and 0 deletions

4
drivers/gpu/drm/nouveau/dispnv50/disp.c

@ -1877,6 +1877,8 @@ nv50_pior_destroy(struct drm_encoder *encoder)
nvif_outp_dtor(&nv_encoder->outp);
drm_encoder_cleanup(encoder);
mutex_destroy(&nv_encoder->dp.hpd_irq_lock);
kfree(encoder);
}
@ -1921,6 +1923,8 @@ nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
nv_encoder->i2c = ddc;
nv_encoder->aux = aux;
mutex_init(&nv_encoder->dp.hpd_irq_lock);
encoder = to_drm_encoder(nv_encoder);
encoder->possible_crtcs = dcbe->heads;
encoder->possible_clones = 0;