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| author | Jyri Sarha <jsarha@ti.com> | 2015-05-27 11:58:37 +0300 |
|---|---|---|
| committer | Jyri Sarha <jsarha@ti.com> | 2016-02-25 16:39:46 +0200 |
| commit | d66284fba15014daacef64cfc610a249553534c6 (patch) | |
| tree | 520cfc47a04b397a5c2d1ba17ce46b52483931be /drivers/gpu/drm/tilcdc/tilcdc_crtc.c | |
| parent | 5895d08f6ff2175dabc373dada7d1bfa26123fc9 (diff) | |
| download | lwn-d66284fba15014daacef64cfc610a249553534c6.tar.gz lwn-d66284fba15014daacef64cfc610a249553534c6.zip | |
drm/tilcdc: Initialize crtc->port
Initialize port device node pointer in the tilcdc crtc. Fixes "Falling
back to first CRTC" warning from tda998x driver.
The tda998x encoder driver calls drm_of_find_possible_crtcs() to
initialize possible_crtcs of struct drm_encoder. The crtc->port needs
to be initialized for drm_of_find_possible_crtcs() to work.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 248e3ea7568c..5f4da8c86ce2 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -124,6 +124,7 @@ static void tilcdc_crtc_destroy(struct drm_crtc *crtc) tilcdc_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); + of_node_put(crtc->port); drm_crtc_cleanup(crtc); drm_flip_work_cleanup(&tilcdc_crtc->unref_work); @@ -749,6 +750,7 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc) struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev) { + struct tilcdc_drm_private *priv = dev->dev_private; struct tilcdc_crtc *tilcdc_crtc; struct drm_crtc *crtc; int ret; @@ -775,6 +777,24 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev) drm_crtc_helper_add(crtc, &tilcdc_crtc_helper_funcs); + if (priv->is_componentized) { + struct device_node *ports = + of_get_child_by_name(dev->dev->of_node, "ports"); + + if (ports) { + crtc->port = of_get_child_by_name(ports, "port"); + of_node_put(ports); + } else { + crtc->port = + of_get_child_by_name(dev->dev->of_node, "port"); + } + if (!crtc->port) { /* This should never happen */ + dev_err(dev->dev, "Port node not found in %s\n", + dev->dev->of_node->full_name); + goto fail; + } + } + return crtc; fail: |