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Subject[PATCH 5/7] drm/bridge: anx7625: Register number of Type C switches
Date
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 <pmalani@chromium.org>
---
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;
+}
+
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);
+
platform->bridge.funcs = &anx7625_bridge_funcs;
platform->bridge.of_node = client->dev.of_node;
if (!anx7625_of_panel_on_aux_bus(&client->dev))
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h
index e257a84db962..d5cbca708842 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.h
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.h
@@ -473,6 +473,7 @@ struct anx7625_data {
struct drm_connector *connector;
struct mipi_dsi_device *dsi;
struct drm_dp_aux aux;
+ int num_typec_switches;
};

#endif /* __ANX7625_H__ */
--
2.36.1.255.ge46751e96f-goog
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