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net: phy: broadcom: Add support for setting LED brightness 

Broadcom PHYs have two LEDs selector registers which allow us to control
the LED assignment, including how to turn them on/off.

Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2023-06-07 11:34:53 -07:00 committed by David S. Miller
parent 57fd7d59b1
commit bd5736e146
4 changed files with 48 additions and 0 deletions
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27
drivers/net/phy/bcm-phy-lib.c
View File

@ -1039,6 +1039,33 @@ irqreturn_t bcm_phy_wol_isr(int irq, void *dev_id)
}
EXPORT_SYMBOL_GPL(bcm_phy_wol_isr);
int bcm_phy_led_brightness_set(struct phy_device *phydev,
u8 index, enum led_brightness value)
{
u8 led_num;
int ret;
u16 reg;
if (index >= 4)
return -EINVAL;
/* Two LEDS per register */
led_num = index % 2;
reg = index >= 2 ? BCM54XX_SHD_LEDS2 : BCM54XX_SHD_LEDS1;
ret = bcm_phy_read_shadow(phydev, reg);
if (ret < 0)
return ret;
ret &= ~(BCM_LED_SRC_MASK << BCM54XX_SHD_LEDS_SHIFT(led_num));
if (value == LED_OFF)
ret |= BCM_LED_SRC_OFF << BCM54XX_SHD_LEDS_SHIFT(led_num);
else
ret |= BCM_LED_SRC_ON << BCM54XX_SHD_LEDS_SHIFT(led_num);
return bcm_phy_write_shadow(phydev, reg, ret);
}
EXPORT_SYMBOL_GPL(bcm_phy_led_brightness_set);
MODULE_DESCRIPTION("Broadcom PHY Library");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Broadcom Corporation");

3
drivers/net/phy/bcm-phy-lib.h
View File

@ -118,4 +118,7 @@ int bcm_phy_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
void bcm_phy_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
irqreturn_t bcm_phy_wol_isr(int irq, void *dev_id);
int bcm_phy_led_brightness_set(struct phy_device *phydev,
u8 index, enum led_brightness value);
#endif /* _LINUX_BCM_PHY_LIB_H */

15
drivers/net/phy/broadcom.c
View File

@ -1031,6 +1031,7 @@ static struct phy_driver broadcom_drivers[] = {
.resume = bcm54xx_resume,
.get_wol = bcm54xx_phy_get_wol,
.set_wol = bcm54xx_phy_set_wol,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM5461,
.phy_id_mask = 0xfffffff0,
@ -1044,6 +1045,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM54612E,
.phy_id_mask = 0xfffffff0,
@ -1057,6 +1059,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM54616S,
.phy_id_mask = 0xfffffff0,
@ -1070,6 +1073,7 @@ static struct phy_driver broadcom_drivers[] = {
.read_status = bcm54616s_read_status,
.probe = bcm54616s_probe,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM5464,
.phy_id_mask = 0xfffffff0,
@ -1085,6 +1089,7 @@ static struct phy_driver broadcom_drivers[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM5481,
.phy_id_mask = 0xfffffff0,
@ -1099,6 +1104,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM54810,
.phy_id_mask = 0xfffffff0,
@ -1115,6 +1121,7 @@ static struct phy_driver broadcom_drivers[] = {
.suspend = bcm54xx_suspend,
.resume = bcm54xx_resume,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM54811,
.phy_id_mask = 0xfffffff0,
@ -1131,6 +1138,7 @@ static struct phy_driver broadcom_drivers[] = {
.suspend = bcm54xx_suspend,
.resume = bcm54xx_resume,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM5482,
.phy_id_mask = 0xfffffff0,
@ -1144,6 +1152,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM50610,
.phy_id_mask = 0xfffffff0,
@ -1159,6 +1168,7 @@ static struct phy_driver broadcom_drivers[] = {
.link_change_notify = bcm54xx_link_change_notify,
.suspend = bcm54xx_suspend,
.resume = bcm54xx_resume,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM50610M,
.phy_id_mask = 0xfffffff0,
@ -1174,6 +1184,7 @@ static struct phy_driver broadcom_drivers[] = {
.link_change_notify = bcm54xx_link_change_notify,
.suspend = bcm54xx_suspend,
.resume = bcm54xx_resume,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM57780,
.phy_id_mask = 0xfffffff0,
@ -1187,6 +1198,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCMAC131,
.phy_id_mask = 0xfffffff0,
@ -1218,6 +1230,7 @@ static struct phy_driver broadcom_drivers[] = {
.get_stats = bcm54xx_get_stats,
.probe = bcm54xx_phy_probe,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM53125,
.phy_id_mask = 0xfffffff0,
@ -1232,6 +1245,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM53128,
.phy_id_mask = 0xfffffff0,
@ -1246,6 +1260,7 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.handle_interrupt = bcm_phy_handle_interrupt,
.link_change_notify = bcm54xx_link_change_notify,
.led_brightness_set = bcm_phy_led_brightness_set,
}, {
.phy_id = PHY_ID_BCM89610,
.phy_id_mask = 0xfffffff0,

3
include/linux/brcmphy.h
View File

@ -161,6 +161,7 @@
#define BCM_LED_SRC_OPENSHORT 0xb
#define BCM_LED_SRC_OFF 0xe /* Tied high */
#define BCM_LED_SRC_ON 0xf /* Tied low */
#define BCM_LED_SRC_MASK GENMASK(3, 0)
/*
* Broadcom Multicolor LED configurations (expansion register 4)
@ -208,9 +209,11 @@
#define BCM54XX_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
/* LED3 / ~LINKSPD[2] selector */
#define BCM54XX_SHD_LEDS_SHIFT(led) (4 * (led))
#define BCM54XX_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
/* LED1 / ~LINKSPD[1] selector */
#define BCM54XX_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
#define BCM54XX_SHD_LEDS2 0x0e /* 01110: LED Selector 2 */
#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */
#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */