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net: dsa: lan9303: MDIO access phy registers directly

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Indirect access (PMI) to phy register only work in I2C mode. In
MDIO mode phy registers must be accessed directly. Introduced
struct lan9303_phy_ops to handle the two modes.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Egil Hjelmeland
2017-07-30 19:58:56 +02:00
committed by David S. Miller
parent 9e866e5dab
commit 2c3408986c
4 changed files with 47 additions and 7 deletions
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11
drivers/net/dsa/lan9303.h
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@@ -2,6 +2,15 @@
#include <linux/device.h>
#include <net/dsa.h>
struct lan9303;
struct lan9303_phy_ops {
/* PHY 1 and 2 access*/
int (*phy_read)(struct lan9303 *chip, int port, int regnum);
int (*phy_write)(struct lan9303 *chip, int port,
int regnum, u16 val);
};
struct lan9303 {
struct device *dev;
struct regmap *regmap;
@@ -11,9 +20,11 @@ struct lan9303 {
bool phy_addr_sel_strap;
struct dsa_switch *ds;
struct mutex indirect_mutex; /* protect indexed register access */
const struct lan9303_phy_ops *ops;
};
extern const struct regmap_access_table lan9303_register_set;
extern const struct lan9303_phy_ops lan9303_indirect_phy_ops;
int lan9303_probe(struct lan9303 *chip, struct device_node *np);
int lan9303_remove(struct lan9303 *chip);