Il 09/06/22 20:09, Prashant Malani ha scritto:
Parse the "switches" node, if available, and count and store the number
of Type-C switches within it. Since we currently don't do anything with
this info, no functional changes are expected from this change.
This patch sets a foundation for the actual registering of Type-C
switches with the Type-C connector class framework.
Signed-off-by: Prashant Malani <pmal...@chromium.org>
---
Changes since v1:
- No changes.
drivers/gpu/drm/bridge/analogix/anx7625.c | 20 ++++++++++++++++++++
drivers/gpu/drm/bridge/analogix/anx7625.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c
b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 53a5da6c49dd..07ed44c6b839 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -2581,6 +2581,22 @@ static void anx7625_runtime_disable(void *data)
pm_runtime_disable(data);
}
+static int anx7625_register_typec_switches(struct device *device, struct anx7625_data *ctx)
+{
+ struct device_node *of = NULL;
+ int ret = 0;
+
+ of = of_get_child_by_name(device->of_node, "switches");
+ if (!of)
+ return -ENODEV;
+
+ ctx->num_typec_switches = of_get_child_count(of);
+ if (ctx->num_typec_switches <= 0)
+ return -ENODEV;
+
+ return ret;
You aren't using the `ret` variable for anything other than returning zero:
remove it and simply return 0 here.
+}
+
static int anx7625_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -2686,6 +2702,10 @@ static int anx7625_i2c_probe(struct i2c_client *client,
if (platform->pdata.intp_irq)
queue_work(platform->workqueue, &platform->work);
+ ret = anx7625_register_typec_switches(dev, platform);
+ if (ret)
+ dev_info(dev, "Didn't register Type C switches, err: %d\n",
ret);
Type-C switches are optional for this driver and this will print a sort of error
on boards that are *not* declaring any switches on purpose (because perhaps they
don't have any, or for any other reason).
Even though this is a dev_info and not a dev_err, it's still printing an
alarming
(and useless, in the aforementioned case) message.
Please fix this.
Regards,
Angelo
