diff mbox series

[v3,03/17] usb: typec: Stub out typec_switch APIs when CONFIG_TYPEC=n

Message ID 20240819223834.2049862-4-swboyd@chromium.org (mailing list archive)
State Superseded
Headers show
Series platform/chrome: Add DT USB/DP muxing/topology support | expand

Commit Message

Stephen Boyd Aug. 19, 2024, 10:38 p.m. UTC
Ease driver development by adding stubs for the typec_switch APIs when
CONFIG_TYPEC=n. Copy the same method used for the typec_mux APIs to be
consistent.

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>
Cc: Pin-yen Lin <treapking@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 include/linux/usb/typec_mux.h | 42 ++++++++++++++++++++++++++++++-----
 1 file changed, 37 insertions(+), 5 deletions(-)

Comments

Andy Shevchenko Aug. 20, 2024, 10:12 a.m. UTC | #1
On Mon, Aug 19, 2024 at 03:38:17PM -0700, Stephen Boyd wrote:
> Ease driver development by adding stubs for the typec_switch APIs when
> CONFIG_TYPEC=n. Copy the same method used for the typec_mux APIs to be
> consistent.

> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: <linux-usb@vger.kernel.org>
> Cc: Pin-yen Lin <treapking@chromium.org>

Since it's not a DRM subsystem, can we move Cc after the --- line with the same
effect minus Git commit pollution?

...

> +#else

Do you need

#include <linux/err.h>

here? Or is it already included at the top of the file?

> +static inline struct typec_switch *
> +fwnode_typec_switch_get(struct fwnode_handle *fwnode)
> +{
> +	return NULL;
> +}
> +static inline void typec_switch_put(struct typec_switch *sw) {}
> +static inline int typec_switch_set(struct typec_switch *sw,
> +		     enum typec_orientation orientation)
> +{
> +	return 0;
> +}
> +
> +static inline struct typec_switch_dev *
> +typec_switch_register(struct device *parent,
> +		      const struct typec_switch_desc *desc)
> +{
> +	return ERR_PTR(-EOPNOTSUPP);
> +}
> +static inline void typec_switch_unregister(struct typec_switch_dev *sw) {}
> +
> +static inline void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data) {}
> +static inline void *typec_switch_get_drvdata(struct typec_switch_dev *sw)
> +{
> +	return ERR_PTR(-EOPNOTSUPP);
> +}
> +
> +#endif /* CONFIG_TYPEC */
diff mbox series

Patch

diff --git a/include/linux/usb/typec_mux.h b/include/linux/usb/typec_mux.h
index 2489a7857d8e..094585205264 100644
--- a/include/linux/usb/typec_mux.h
+++ b/include/linux/usb/typec_mux.h
@@ -24,16 +24,13 @@  struct typec_switch_desc {
 	void *drvdata;
 };
 
+#if IS_ENABLED(CONFIG_TYPEC)
+
 struct typec_switch *fwnode_typec_switch_get(struct fwnode_handle *fwnode);
 void typec_switch_put(struct typec_switch *sw);
 int typec_switch_set(struct typec_switch *sw,
 		     enum typec_orientation orientation);
 
-static inline struct typec_switch *typec_switch_get(struct device *dev)
-{
-	return fwnode_typec_switch_get(dev_fwnode(dev));
-}
-
 struct typec_switch_dev *
 typec_switch_register(struct device *parent,
 		      const struct typec_switch_desc *desc);
@@ -42,6 +39,41 @@  void typec_switch_unregister(struct typec_switch_dev *sw);
 void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data);
 void *typec_switch_get_drvdata(struct typec_switch_dev *sw);
 
+#else
+
+static inline struct typec_switch *
+fwnode_typec_switch_get(struct fwnode_handle *fwnode)
+{
+	return NULL;
+}
+static inline void typec_switch_put(struct typec_switch *sw) {}
+static inline int typec_switch_set(struct typec_switch *sw,
+		     enum typec_orientation orientation)
+{
+	return 0;
+}
+
+static inline struct typec_switch_dev *
+typec_switch_register(struct device *parent,
+		      const struct typec_switch_desc *desc)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+static inline void typec_switch_unregister(struct typec_switch_dev *sw) {}
+
+static inline void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data) {}
+static inline void *typec_switch_get_drvdata(struct typec_switch_dev *sw)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+#endif /* CONFIG_TYPEC */
+
+static inline struct typec_switch *typec_switch_get(struct device *dev)
+{
+	return fwnode_typec_switch_get(dev_fwnode(dev));
+}
+
 struct typec_mux_state {
 	struct typec_altmode *alt;
 	unsigned long mode;