leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

phy: Add media type and speed serdes configuration interfaces

Browse Source 
Provide new phy configuration interfaces for media type and speed that
allows e.g. PHYs used for ethernet to be configured with this
information.

Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-By: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20210218161451.3489955-3-steen.hegelund@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Steen Hegelund 2021-02-18 17:14:49 +01:00 committed by Vinod Koul
parent 13f99ac6c3
commit 6c172e7369
2 changed files with 56 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/phy/phy-core.c
View File

@ -373,6 +373,36 @@ int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode)
}
EXPORT_SYMBOL_GPL(phy_set_mode_ext);
int phy_set_media(struct phy *phy, enum phy_media media)
{
int ret;
if (!phy || !phy->ops->set_media)
return 0;
mutex_lock(&phy->mutex);
ret = phy->ops->set_media(phy, media);
mutex_unlock(&phy->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(phy_set_media);
int phy_set_speed(struct phy *phy, int speed)
{
int ret;
if (!phy || !phy->ops->set_speed)
return 0;
mutex_lock(&phy->mutex);
ret = phy->ops->set_speed(phy, speed);
mutex_unlock(&phy->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(phy_set_speed);
int phy_reset(struct phy *phy)
{
int ret;

26
include/linux/phy/phy.h
View File

@ -44,6 +44,12 @@ enum phy_mode {
PHY_MODE_DP
};
enum phy_media {
PHY_MEDIA_DEFAULT,
PHY_MEDIA_SR,
PHY_MEDIA_DAC,
};
/**
* union phy_configure_opts - Opaque generic phy configuration
*
@ -64,6 +70,8 @@ union phy_configure_opts {
* @power_on: powering on the phy
* @power_off: powering off the phy
* @set_mode: set the mode of the phy
* @set_media: set the media type of the phy (optional)
* @set_speed: set the speed of the phy (optional)
* @reset: resetting the phy
* @calibrate: calibrate the phy
* @release: ops to be performed while the consumer relinquishes the PHY
@ -75,6 +83,8 @@ struct phy_ops {
int (*power_on)(struct phy *phy);
int (*power_off)(struct phy *phy);
int (*set_mode)(struct phy *phy, enum phy_mode mode, int submode);
int (*set_media)(struct phy *phy, enum phy_media media);
int (*set_speed)(struct phy *phy, int speed);
/**
* @configure:
@ -215,6 +225,8 @@ int phy_power_off(struct phy *phy);
int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode);
#define phy_set_mode(phy, mode) \
phy_set_mode_ext(phy, mode, 0)
int phy_set_media(struct phy *phy, enum phy_media media);
int phy_set_speed(struct phy *phy, int speed);
int phy_configure(struct phy *phy, union phy_configure_opts *opts);
int phy_validate(struct phy *phy, enum phy_mode mode, int submode,
union phy_configure_opts *opts);
@ -344,6 +356,20 @@ static inline int phy_set_mode_ext(struct phy *phy, enum phy_mode mode,
#define phy_set_mode(phy, mode) \
phy_set_mode_ext(phy, mode, 0)
static inline int phy_set_media(struct phy *phy, enum phy_media media)
{
if (!phy)
return 0;
return -ENODEV;
}
static inline int phy_set_speed(struct phy *phy, int speed)
{
if (!phy)
return 0;
return -ENODEV;
}
static inline enum phy_mode phy_get_mode(struct phy *phy)
{
return PHY_MODE_INVALID;