| Message ID | 20220629233314.3540377-3-pmalani@chromium.org (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | platform/chrome: Type-C switch driver and Type-C framework updates | expand |
Hi, On Wed, Jun 29, 2022 at 11:32:20PM +0000, Prashant Malani wrote: > Similar to mux and orientation switch, add a handle for registered > retimer to the port, so that it has handles to the various switches > connected to it. > > Signed-off-by: Prashant Malani <pmalani@chromium.org> > --- > drivers/usb/typec/class.c | 8 ++++++++ > drivers/usb/typec/class.h | 1 + > 2 files changed, 9 insertions(+) > > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c > index 2fa0b3718d23..2bc5fbdb25dd 100644 > --- a/drivers/usb/typec/class.c > +++ b/drivers/usb/typec/class.c > @@ -12,6 +12,7 @@ > #include <linux/slab.h> > #include <linux/usb/pd_vdo.h> > #include <linux/usb/typec_mux.h> > +#include <linux/usb/typec_retimer.h> > > #include "bus.h" > #include "class.h" > @@ -2249,6 +2250,13 @@ struct typec_port *typec_register_port(struct device *parent, > return ERR_PTR(ret); > } > > + port->retimer = typec_retimer_get(&port->dev); > + if (IS_ERR(port->retimer)) { > + ret = PTR_ERR(port->retimer); > + put_device(&port->dev); > + return ERR_PTR(ret); > + } > + > ret = device_add(&port->dev); > if (ret) { > dev_err(parent, "failed to register port (%d)\n", ret); I think you need to release the reference with typec_retimer_put() in typec_release(). I guess we can look handle this later, but there can actually be two onboard retimers for each connector. thanks, > diff --git a/drivers/usb/typec/class.h b/drivers/usb/typec/class.h > index 1bb1da124109..97520406929e 100644 > --- a/drivers/usb/typec/class.h > +++ b/drivers/usb/typec/class.h > @@ -55,6 +55,7 @@ struct typec_port { > enum typec_orientation orientation; > struct typec_switch *sw; > struct typec_mux *mux; > + struct typec_retimer *retimer; > > const struct typec_capability *cap; > const struct typec_operations *ops;
HI Heikki, On Thu, Jun 30, 2022 at 1:27 AM Heikki Krogerus <heikki.krogerus@linux.intel.com> wrote: > > Hi, > > On Wed, Jun 29, 2022 at 11:32:20PM +0000, Prashant Malani wrote: > > Similar to mux and orientation switch, add a handle for registered > > retimer to the port, so that it has handles to the various switches > > connected to it. > > > > Signed-off-by: Prashant Malani <pmalani@chromium.org> > > --- > > drivers/usb/typec/class.c | 8 ++++++++ > > drivers/usb/typec/class.h | 1 + > > 2 files changed, 9 insertions(+) > > > > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c > > index 2fa0b3718d23..2bc5fbdb25dd 100644 > > --- a/drivers/usb/typec/class.c > > +++ b/drivers/usb/typec/class.c > > @@ -12,6 +12,7 @@ > > #include <linux/slab.h> > > #include <linux/usb/pd_vdo.h> > > #include <linux/usb/typec_mux.h> > > +#include <linux/usb/typec_retimer.h> > > > > #include "bus.h" > > #include "class.h" > > @@ -2249,6 +2250,13 @@ struct typec_port *typec_register_port(struct device *parent, > > return ERR_PTR(ret); > > } > > > > + port->retimer = typec_retimer_get(&port->dev); > > + if (IS_ERR(port->retimer)) { > > + ret = PTR_ERR(port->retimer); > > + put_device(&port->dev); > > + return ERR_PTR(ret); > > + } > > + > > ret = device_add(&port->dev); > > if (ret) { > > dev_err(parent, "failed to register port (%d)\n", ret); > > I think you need to release the reference with typec_retimer_put() in > typec_release(). I knew I was forgetting something... I'll fix this in v2. > > I guess we can look handle this later, but there can actually be two > onboard retimers for each connector. You're referring to the cascaded case right? OK, I'll bear this in mind for later series (right now the EC exposes just 1 interface for retimer). Thanks, -Prashant
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 2fa0b3718d23..2bc5fbdb25dd 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -12,6 +12,7 @@ #include <linux/slab.h> #include <linux/usb/pd_vdo.h> #include <linux/usb/typec_mux.h> +#include <linux/usb/typec_retimer.h> #include "bus.h" #include "class.h" @@ -2249,6 +2250,13 @@ struct typec_port *typec_register_port(struct device *parent, return ERR_PTR(ret); } + port->retimer = typec_retimer_get(&port->dev); + if (IS_ERR(port->retimer)) { + ret = PTR_ERR(port->retimer); + put_device(&port->dev); + return ERR_PTR(ret); + } + ret = device_add(&port->dev); if (ret) { dev_err(parent, "failed to register port (%d)\n", ret); diff --git a/drivers/usb/typec/class.h b/drivers/usb/typec/class.h index 1bb1da124109..97520406929e 100644 --- a/drivers/usb/typec/class.h +++ b/drivers/usb/typec/class.h @@ -55,6 +55,7 @@ struct typec_port { enum typec_orientation orientation; struct typec_switch *sw; struct typec_mux *mux; + struct typec_retimer *retimer; const struct typec_capability *cap; const struct typec_operations *ops;
Similar to mux and orientation switch, add a handle for registered retimer to the port, so that it has handles to the various switches connected to it. Signed-off-by: Prashant Malani <pmalani@chromium.org> --- drivers/usb/typec/class.c | 8 ++++++++ drivers/usb/typec/class.h | 1 + 2 files changed, 9 insertions(+)