openwrt/target/linux/generic/backport-6.1/801-v6.4-06-net-phy-phy_device-Call-into-the-PHY-driver-to-set-L.patch
Christian Marangi c2c741ccce
generic: 6.1: initial backport of at803x PHY driver cleanup
Initial backport of at803x PHY driver cleanup. This is in preparation
for split and addition of new PHY Family based on at803x needed for
ipq807x and other IPQ Series SoC.

Other affected patch are automatically refreshed with
make target/linux/refresh

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2024-01-15 20:01:42 +01:00

98 lines
3.2 KiB
Diff

From 684818189b04b095b34964ed4a3ea5249a840eab Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Mon, 17 Apr 2023 17:17:28 +0200
Subject: [PATCH 6/9] net: phy: phy_device: Call into the PHY driver to set LED
brightness
Linux LEDs can be software controlled via the brightness file in /sys.
LED drivers need to implement a brightness_set function which the core
will call. Implement an intermediary in phy_device, which will call
into the phy driver if it implements the necessary function.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/phy_device.c | 15 ++++++++++++---
include/linux/phy.h | 13 +++++++++++++
2 files changed, 25 insertions(+), 3 deletions(-)
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2934,11 +2934,18 @@ static bool phy_drv_supports_irq(struct
return phydrv->config_intr && phydrv->handle_interrupt;
}
-/* Dummy implementation until calls into PHY driver are added */
static int phy_led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
- return 0;
+ struct phy_led *phyled = to_phy_led(led_cdev);
+ struct phy_device *phydev = phyled->phydev;
+ int err;
+
+ mutex_lock(&phydev->lock);
+ err = phydev->drv->led_brightness_set(phydev, phyled->index, value);
+ mutex_unlock(&phydev->lock);
+
+ return err;
}
static int of_phy_led(struct phy_device *phydev,
@@ -2955,12 +2962,14 @@ static int of_phy_led(struct phy_device
return -ENOMEM;
cdev = &phyled->led_cdev;
+ phyled->phydev = phydev;
err = of_property_read_u8(led, "reg", &phyled->index);
if (err)
return err;
- cdev->brightness_set_blocking = phy_led_set_brightness;
+ if (phydev->drv->led_brightness_set)
+ cdev->brightness_set_blocking = phy_led_set_brightness;
cdev->max_brightness = 1;
init_data.devicename = dev_name(&phydev->mdio.dev);
init_data.fwnode = of_fwnode_handle(led);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -774,15 +774,19 @@ struct phy_tdr_config {
* struct phy_led: An LED driven by the PHY
*
* @list: List of LEDs
+ * @phydev: PHY this LED is attached to
* @led_cdev: Standard LED class structure
* @index: Number of the LED
*/
struct phy_led {
struct list_head list;
+ struct phy_device *phydev;
struct led_classdev led_cdev;
u8 index;
};
+#define to_phy_led(d) container_of(d, struct phy_led, led_cdev)
+
/**
* struct phy_driver - Driver structure for a particular PHY type
*
@@ -997,6 +1001,15 @@ struct phy_driver {
int (*get_sqi)(struct phy_device *dev);
/** @get_sqi_max: Get the maximum signal quality indication */
int (*get_sqi_max)(struct phy_device *dev);
+
+ /**
+ * @led_brightness_set: Set a PHY LED brightness. Index
+ * indicates which of the PHYs led should be set. Value
+ * follows the standard LED class meaning, e.g. LED_OFF,
+ * LED_HALF, LED_FULL.
+ */
+ int (*led_brightness_set)(struct phy_device *dev,
+ u8 index, enum led_brightness value);
};
#define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
struct phy_driver, mdiodrv)