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There are some drivers that can use the Type C mux API, but don't have to. Introduce CONFIG guards for the mux functions so that drivers can include the header file and not run into compilation errors on systems which don't have CONFIG_TYPEC enabled. When CONFIG_TYPEC is not enabled, the Type C mux functions will be stub versions of the original calls. Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Signed-off-by: Prashant Malani <pmalani@chromium.org> Link: https://lore.kernel.org/r/20220615172129.1314056-3-pmalani@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef __USB_TYPEC_MUX
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#define __USB_TYPEC_MUX
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#include <linux/property.h>
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#include <linux/usb/typec.h>
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struct device;
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struct typec_mux;
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struct typec_mux_dev;
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struct typec_switch;
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struct typec_switch_dev;
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struct typec_altmode;
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struct fwnode_handle;
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typedef int (*typec_switch_set_fn_t)(struct typec_switch_dev *sw,
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enum typec_orientation orientation);
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struct typec_switch_desc {
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struct fwnode_handle *fwnode;
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typec_switch_set_fn_t set;
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const char *name;
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void *drvdata;
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};
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struct typec_switch *fwnode_typec_switch_get(struct fwnode_handle *fwnode);
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void typec_switch_put(struct typec_switch *sw);
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int typec_switch_set(struct typec_switch *sw,
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enum typec_orientation orientation);
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static inline struct typec_switch *typec_switch_get(struct device *dev)
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{
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return fwnode_typec_switch_get(dev_fwnode(dev));
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}
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struct typec_switch_dev *
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typec_switch_register(struct device *parent,
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const struct typec_switch_desc *desc);
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void typec_switch_unregister(struct typec_switch_dev *sw);
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void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data);
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void *typec_switch_get_drvdata(struct typec_switch_dev *sw);
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struct typec_mux_state {
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struct typec_altmode *alt;
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unsigned long mode;
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void *data;
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};
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typedef int (*typec_mux_set_fn_t)(struct typec_mux_dev *mux,
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struct typec_mux_state *state);
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struct typec_mux_desc {
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struct fwnode_handle *fwnode;
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typec_mux_set_fn_t set;
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const char *name;
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void *drvdata;
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};
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#if IS_ENABLED(CONFIG_TYPEC)
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struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode,
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const struct typec_altmode_desc *desc);
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void typec_mux_put(struct typec_mux *mux);
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int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state);
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struct typec_mux_dev *
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typec_mux_register(struct device *parent, const struct typec_mux_desc *desc);
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void typec_mux_unregister(struct typec_mux_dev *mux);
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void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data);
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void *typec_mux_get_drvdata(struct typec_mux_dev *mux);
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#else
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static inline struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode,
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const struct typec_altmode_desc *desc)
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{
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return NULL;
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}
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static inline void typec_mux_put(struct typec_mux *mux) {}
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static inline int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state)
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{
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return 0;
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}
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static inline struct typec_mux_dev *
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typec_mux_register(struct device *parent, const struct typec_mux_desc *desc)
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{
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return ERR_PTR(-EOPNOTSUPP);
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}
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static inline void typec_mux_unregister(struct typec_mux_dev *mux) {}
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static inline void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data) {}
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static inline void *typec_mux_get_drvdata(struct typec_mux_dev *mux)
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{
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return ERR_PTR(-EOPNOTSUPP);
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}
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#endif /* CONFIG_TYPEC */
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static inline struct typec_mux *
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typec_mux_get(struct device *dev, const struct typec_altmode_desc *desc)
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{
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return fwnode_typec_mux_get(dev_fwnode(dev), desc);
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}
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#endif /* __USB_TYPEC_MUX */
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