diff options
| author | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2021-10-22 13:10:02 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2021-10-22 13:10:02 +0300 |
| commit | ef3e619221248a7ea5fc711a2bf9017c94d2f644 (patch) | |
| tree | b69232290b6a3e3d2a26560052c7183ab0ba3c52 /drivers/gpu/drm/bridge/ite-it66121.c | |
| parent | 777226dac058d119286b4081953cb5aa2cb7394b (diff) | |
| parent | 6f2f7c83303d2227f47551423e507d77d9ea01c7 (diff) | |
Merge drm/drm-next into drm-intel-gt-next
Backmerging to pull in the new dma_resv iterators requested by
Maarten and Matt.
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/bridge/ite-it66121.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/ite-it66121.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index 2f2a09adb4bc..06b59b422c69 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -889,7 +889,7 @@ unlock: static int it66121_probe(struct i2c_client *client, const struct i2c_device_id *id) { - u32 vendor_ids[2], device_ids[2], revision_id; + u32 revision_id, vendor_ids[2] = { 0 }, device_ids[2] = { 0 }; struct device_node *ep; int ret; struct it66121_ctx *ctx; @@ -918,11 +918,26 @@ static int it66121_probe(struct i2c_client *client, return -EINVAL; ep = of_graph_get_remote_node(dev->of_node, 1, -1); - if (!ep) - return -EPROBE_DEFER; + if (!ep) { + dev_err(ctx->dev, "The endpoint is unconnected\n"); + return -EINVAL; + } + + if (!of_device_is_available(ep)) { + of_node_put(ep); + dev_err(ctx->dev, "The remote device is disabled\n"); + return -ENODEV; + } ctx->next_bridge = of_drm_find_bridge(ep); of_node_put(ep); + if (!ctx->next_bridge) { + dev_dbg(ctx->dev, "Next bridge not found, deferring probe\n"); + return -EPROBE_DEFER; + } + + if (!ctx->next_bridge) + return -EPROBE_DEFER; i2c_set_clientdata(client, ctx); mutex_init(&ctx->lock); |