mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
64882709ef
This patch adds phy reset functionality to mdio-gpio driver. Now mdio_gpio_platform_data has new member as function pointer which can be filled at the bsp level for a callback from phy infrastructure. Also the mdio-bitbang driver fills-in the reset function of mii_bus structure. Without this patch the bsp level code has to takecare of the reseting PHY's on the bus, which become bit hacky for every bsp and phy-infrastructure is ignored aswell. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#ifndef __LINUX_MDIO_BITBANG_H
|
|
#define __LINUX_MDIO_BITBANG_H
|
|
|
|
#include <linux/phy.h>
|
|
|
|
struct module;
|
|
|
|
struct mdiobb_ctrl;
|
|
|
|
struct mdiobb_ops {
|
|
struct module *owner;
|
|
|
|
/* Set the Management Data Clock high if level is one,
|
|
* low if level is zero.
|
|
*/
|
|
void (*set_mdc)(struct mdiobb_ctrl *ctrl, int level);
|
|
|
|
/* Configure the Management Data I/O pin as an input if
|
|
* "output" is zero, or an output if "output" is one.
|
|
*/
|
|
void (*set_mdio_dir)(struct mdiobb_ctrl *ctrl, int output);
|
|
|
|
/* Set the Management Data I/O pin high if value is one,
|
|
* low if "value" is zero. This may only be called
|
|
* when the MDIO pin is configured as an output.
|
|
*/
|
|
void (*set_mdio_data)(struct mdiobb_ctrl *ctrl, int value);
|
|
|
|
/* Retrieve the state Management Data I/O pin. */
|
|
int (*get_mdio_data)(struct mdiobb_ctrl *ctrl);
|
|
};
|
|
|
|
struct mdiobb_ctrl {
|
|
const struct mdiobb_ops *ops;
|
|
/* reset callback */
|
|
int (*reset)(struct mii_bus *bus);
|
|
};
|
|
|
|
/* The returned bus is not yet registered with the phy layer. */
|
|
struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);
|
|
|
|
/* The bus must already have been unregistered. */
|
|
void free_mdio_bitbang(struct mii_bus *bus);
|
|
|
|
#endif
|