diff options
| author | Mahesh Kumar <mahesh1.kumar@intel.com> | 2018-05-25 18:52:38 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-06-07 11:39:05 +0300 |
| commit | 2f08b23d70324bb0f592c71bd36cdc1d2f12face (patch) | |
| tree | 758321c610822f033ca2b09e3dd7480900ad27ab /drivers/gpu | |
| parent | 47541443a62a278f0a0f9a03c5403cb15bd62ded (diff) | |
| download | linux-2f08b23d70324bb0f592c71bd36cdc1d2f12face.tar.xz | |
drm/i915/icl: fix icl_unmap/map_plls_to_ports
All connectors may not have best_encoder attached, so don't dereference
encoder pointer for each connector.
Fixes: c27e917e2bda ("drm/i915/icl: add basic support for the ICL clocks")
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180525155238.7054-1-lucas.demarchi@intel.com
(cherry picked from commit c46ef57d2008e5195f086a538550488b49644db7)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index b98ac0541f19..f4a8598a2d39 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -2453,12 +2453,13 @@ void icl_map_plls_to_ports(struct drm_crtc *crtc, for_each_new_connector_in_state(old_state, conn, conn_state, i) { struct intel_encoder *encoder = to_intel_encoder(conn_state->best_encoder); - enum port port = encoder->port; + enum port port; uint32_t val; if (conn_state->crtc != crtc) continue; + port = encoder->port; mutex_lock(&dev_priv->dpll_lock); val = I915_READ(DPCLKA_CFGCR0_ICL); @@ -2490,11 +2491,12 @@ void icl_unmap_plls_to_ports(struct drm_crtc *crtc, for_each_old_connector_in_state(old_state, conn, old_conn_state, i) { struct intel_encoder *encoder = to_intel_encoder(old_conn_state->best_encoder); - enum port port = encoder->port; + enum port port; if (old_conn_state->crtc != crtc) continue; + port = encoder->port; mutex_lock(&dev_priv->dpll_lock); I915_WRITE(DPCLKA_CFGCR0_ICL, I915_READ(DPCLKA_CFGCR0_ICL) | |