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usb: typec: Make bus switch code retimer-aware 

Since ports can have retimers associated with them, update the Type-C
alternate mode bus code to also set retimer state when the switch state
is updated.

While we are here, make the typec_retimer_dev_type declaration in the
retimer.h file as extern, so that the header file can be successfully
included in the bus code without redeclaration compilation errors.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230112221609.540754-4-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prashant Malani 2023-01-12 22:16:08 +00:00 committed by Greg Kroah-Hartman
parent 2c8cb236ed
commit 6681e43f50
2 changed files with 23 additions and 1 deletions
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22
drivers/usb/typec/bus.c
View File

@ -11,6 +11,22 @@
#include "bus.h"
#include "class.h"
#include "mux.h"
#include "retimer.h"
static inline int
typec_altmode_set_retimer(struct altmode *alt, unsigned long conf, void *data)
{
struct typec_retimer_state state;
if (!alt->retimer)
return 0;
state.alt = &alt->adev;
state.mode = conf;
state.data = data;
return typec_retimer_set(alt->retimer, &state);
}
static inline int
typec_altmode_set_mux(struct altmode *alt, unsigned long conf, void *data)
@ -31,6 +47,12 @@ typec_altmode_set_mux(struct altmode *alt, unsigned long conf, void *data)
static inline int
typec_altmode_set_switches(struct altmode *alt, unsigned long conf, void *data)
{
int ret;
ret = typec_altmode_set_retimer(alt, conf, data);
if (ret)
return ret;
return typec_altmode_set_mux(alt, conf, data);
}

2
drivers/usb/typec/retimer.h
View File

@ -12,7 +12,7 @@ struct typec_retimer {
#define to_typec_retimer(_dev_) container_of(_dev_, struct typec_retimer, dev)
const struct device_type typec_retimer_dev_type;
extern const struct device_type typec_retimer_dev_type;
#define is_typec_retimer(dev) ((dev)->type == &typec_retimer_dev_type)