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>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
#ifndef __LINUX_MDIO_BITBANG_H
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#define __LINUX_MDIO_BITBANG_H
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#include <linux/phy.h>
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struct module;
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struct mdiobb_ctrl;
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struct mdiobb_ops {
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struct module *owner;
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/* Set the Management Data Clock high if level is one,
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* low if level is zero.
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*/
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void (*set_mdc)(struct mdiobb_ctrl *ctrl, int level);
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/* Configure the Management Data I/O pin as an input if
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* "output" is zero, or an output if "output" is one.
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*/
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void (*set_mdio_dir)(struct mdiobb_ctrl *ctrl, int output);
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/* Set the Management Data I/O pin high if value is one,
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* low if "value" is zero. This may only be called
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* when the MDIO pin is configured as an output.
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*/
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void (*set_mdio_data)(struct mdiobb_ctrl *ctrl, int value);
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/* Retrieve the state Management Data I/O pin. */
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int (*get_mdio_data)(struct mdiobb_ctrl *ctrl);
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};
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struct mdiobb_ctrl {
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const struct mdiobb_ops *ops;
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/* reset callback */
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int (*reset)(struct mii_bus *bus);
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};
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/* The returned bus is not yet registered with the phy layer. */
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struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);
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/* The bus must already have been unregistered. */
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void free_mdio_bitbang(struct mii_bus *bus);
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#endif
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