From: Christian Marangi <ansuelsmth@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Gregory Clement <gregory.clement@bootlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
Pavel Machek <pavel@ucw.cz>, Lee Jones <lee@kernel.org>,
Christian Marangi <ansuelsmth@gmail.com>,
John Crispin <john@phrozen.org>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, linux-leds@vger.kernel.org
Subject: [net-next PATCH v5 05/15] net: phy: Add a binding for PHY LEDs
Date: Sun, 19 Mar 2023 20:18:04 +0100 [thread overview]
Message-ID: <20230319191814.22067-6-ansuelsmth@gmail.com> (raw)
In-Reply-To: <20230319191814.22067-1-ansuelsmth@gmail.com>
From: Andrew Lunn <andrew@lunn.ch>
Define common binding parsing for all PHY drivers with LEDs using
phylib. Parse the DT as part of the phy_probe and add LEDs to the
linux LED class infrastructure. For the moment, provide a dummy
brightness function, which will later be replaced with a call into the
PHY driver.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
drivers/net/phy/phy_device.c | 75 ++++++++++++++++++++++++++++++++++++
include/linux/phy.h | 16 ++++++++
2 files changed, 91 insertions(+)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index c0760cbf534b..39af989947f9 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -19,10 +19,12 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
+#include <linux/list.h>
#include <linux/mdio.h>
#include <linux/mii.h>
#include <linux/mm.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/netdevice.h>
#include <linux/phy.h>
#include <linux/phy_led_triggers.h>
@@ -674,6 +676,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
device_initialize(&mdiodev->dev);
dev->state = PHY_DOWN;
+ INIT_LIST_HEAD(&dev->leds);
mutex_init(&dev->lock);
INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
@@ -2988,6 +2991,73 @@ static bool phy_drv_supports_irq(struct phy_driver *phydrv)
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;
+}
+
+static int of_phy_led(struct phy_device *phydev,
+ struct device_node *led)
+{
+ struct device *dev = &phydev->mdio.dev;
+ struct led_init_data init_data = {};
+ struct led_classdev *cdev;
+ struct phy_led *phyled;
+ int err;
+
+ phyled = devm_kzalloc(dev, sizeof(*phyled), GFP_KERNEL);
+ if (!phyled)
+ return -ENOMEM;
+
+ cdev = &phyled->led_cdev;
+
+ err = of_property_read_u32(led, "reg", &phyled->index);
+ if (err)
+ return err;
+
+ 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);
+
+ err = devm_led_classdev_register_ext(dev, cdev, &init_data);
+ if (err)
+ return err;
+
+ list_add(&phyled->list, &phydev->leds);
+
+ return 0;
+}
+
+static int of_phy_leds(struct phy_device *phydev)
+{
+ struct device_node *node = phydev->mdio.dev.of_node;
+ struct device_node *leds, *led;
+ int err;
+
+ if (!IS_ENABLED(CONFIG_OF_MDIO))
+ return 0;
+
+ if (!node)
+ return 0;
+
+ leds = of_get_child_by_name(node, "leds");
+ if (!leds)
+ return 0;
+
+ for_each_available_child_of_node(leds, led) {
+ err = of_phy_led(phydev, led);
+ if (err) {
+ of_node_put(led);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
/**
* fwnode_mdio_find_device - Given a fwnode, find the mdio_device
* @fwnode: pointer to the mdio_device's fwnode
@@ -3183,6 +3253,11 @@ static int phy_probe(struct device *dev)
/* Set the state to READY by default */
phydev->state = PHY_READY;
+ /* Get the LEDs from the device tree, and instantiate standard
+ * LEDs for them.
+ */
+ err = of_phy_leds(phydev);
+
out:
/* Re-assert the reset signal on error */
if (err)
diff --git a/include/linux/phy.h b/include/linux/phy.h
index fefd5091bc24..11fb76a1c507 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -14,6 +14,7 @@
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
+#include <linux/leds.h>
#include <linux/linkmode.h>
#include <linux/netlink.h>
#include <linux/mdio.h>
@@ -600,6 +601,7 @@ struct macsec_ops;
* @phy_num_led_triggers: Number of triggers in @phy_led_triggers
* @led_link_trigger: LED trigger for link up/down
* @last_triggered: last LED trigger for link speed
+ * @leds: list of PHY LED structures
* @master_slave_set: User requested master/slave configuration
* @master_slave_get: Current master/slave advertisement
* @master_slave_state: Current master/slave configuration
@@ -699,6 +701,7 @@ struct phy_device {
struct phy_led_trigger *led_link_trigger;
#endif
+ struct list_head leds;
/*
* Interrupt number for this PHY
@@ -834,6 +837,19 @@ struct phy_plca_status {
bool pst;
};
+/**
+ * struct phy_led: An LED driven by the PHY
+ *
+ * @list: List of LEDs
+ * @led_cdev: Standard LED class structure
+ * @index: Number of the LED
+ */
+struct phy_led {
+ struct list_head list;
+ struct led_classdev led_cdev;
+ u32 index;
+};
+
/**
* struct phy_driver - Driver structure for a particular PHY type
*
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-03-19 19:19 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-19 19:17 [net-next PATCH v5 00/15] net: Add basic LED support for switch/phy Christian Marangi
2023-03-19 19:18 ` [net-next PATCH v5 01/15] net: dsa: qca8k: move qca8k_port_to_phy() to header Christian Marangi
2023-03-20 16:32 ` Michal Kubiak
2023-03-19 19:18 ` [net-next PATCH v5 02/15] net: dsa: qca8k: add LEDs basic support Christian Marangi
2023-03-20 16:30 ` Michal Kubiak
2023-03-20 16:33 ` Christian Marangi
2023-03-20 17:48 ` Michal Kubiak
2023-03-20 18:05 ` Christian Marangi
2023-03-19 19:18 ` [net-next PATCH v5 03/15] net: dsa: qca8k: add LEDs blink_set() support Christian Marangi
2023-03-23 11:55 ` Pavel Machek
2023-03-19 19:18 ` [net-next PATCH v5 04/15] leds: Provide stubs for when CLASS_LED is disabled Christian Marangi
2023-03-19 22:49 ` Andrew Lunn
2023-03-20 17:52 ` Christian Marangi
2023-03-20 19:31 ` Andrew Lunn
2023-03-21 7:55 ` Christian Marangi
2023-03-21 15:58 ` Andrew Lunn
2023-03-21 16:02 ` Andrew Lunn
2023-03-21 16:13 ` Christian Marangi
2023-03-19 19:18 ` Christian Marangi [this message]
2023-03-20 16:34 ` [net-next PATCH v5 05/15] net: phy: Add a binding for PHY LEDs Michal Kubiak
2023-03-19 19:18 ` [net-next PATCH v5 06/15] net: phy: phy_device: Call into the PHY driver to set LED brightness Christian Marangi
2023-03-20 16:36 ` Michal Kubiak
2023-03-19 19:18 ` [net-next PATCH v5 07/15] net: phy: marvell: Add software control of the LEDs Christian Marangi
2023-03-23 11:55 ` Pavel Machek
2023-03-19 19:18 ` [net-next PATCH v5 08/15] net: phy: phy_device: Call into the PHY driver to set LED blinking Christian Marangi
2023-03-23 11:56 ` Pavel Machek
2023-03-19 19:18 ` [net-next PATCH v5 09/15] net: phy: marvell: Implement led_blink_set() Christian Marangi
2023-03-23 11:57 ` Pavel Machek
2023-03-19 19:18 ` [net-next PATCH v5 10/15] dt-bindings: net: ethernet-controller: Document support for LEDs node Christian Marangi
2023-03-21 21:19 ` Rob Herring
2023-03-21 22:54 ` Christian Marangi
2023-03-21 23:23 ` Andrew Lunn
2023-03-21 23:39 ` Christian Marangi
2023-03-24 21:59 ` Rob Herring
2023-03-24 22:06 ` Rob Herring
2023-03-19 19:18 ` [net-next PATCH v5 11/15] dt-bindings: net: dsa: qca8k: add LEDs definition example Christian Marangi
2023-03-21 21:27 ` Rob Herring
2023-03-19 19:18 ` [net-next PATCH v5 12/15] arm: qcom: dt: Drop unevaluated properties in switch nodes for rb3011 Christian Marangi
2023-03-24 8:54 ` Krzysztof Kozlowski
2023-03-19 19:18 ` [net-next PATCH v5 13/15] arm: qcom: dt: Add Switch LED for each port " Christian Marangi
2023-03-23 12:00 ` Pavel Machek
2023-03-19 19:18 ` [net-next PATCH v5 14/15] dt-bindings: net: phy: Document support for LEDs node Christian Marangi
2023-03-21 21:29 ` Rob Herring
2023-03-19 19:18 ` [net-next PATCH v5 15/15] arm: mvebu: dt: Add PHY LED support for 370-rd WAN port Christian Marangi
2023-03-23 12:04 ` Pavel Machek
2023-03-23 17:02 ` Andrew Lunn
2023-03-23 19:11 ` Pavel Machek
2023-03-23 19:53 ` Andrew Lunn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230319191814.22067-6-ansuelsmth@gmail.com \
--to=ansuelsmth@gmail.com \
--cc=agross@kernel.org \
--cc=andersson@kernel.org \
--cc=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=edumazet@google.com \
--cc=f.fainelli@gmail.com \
--cc=gregory.clement@bootlin.com \
--cc=hkallweit1@gmail.com \
--cc=john@phrozen.org \
--cc=konrad.dybcio@linaro.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=kuba@kernel.org \
--cc=lee@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-leds@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=netdev@vger.kernel.org \
--cc=olteanv@gmail.com \
--cc=pabeni@redhat.com \
--cc=pavel@ucw.cz \
--cc=robh+dt@kernel.org \
--cc=sebastian.hesselbarth@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).