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Date: Wed, 29 Nov 2023 00:21:35 +0100
From: Andrew Lunn <andrew@...n.ch>
To: netdev <netdev@...r.kernel.org>
Cc: Linus Walleij <linus.walleij@...aro.org>,
Christian Marangi <ansuelsmth@...il.com>,
Vladimir Oltean <vladimir.oltean@....com>,
Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>
Subject: [PATCH RFC net-next 8/8] dsa: qca8k: Use DSA common code for LEDs
Rather than parse the device tree in the qca8k driver, make use of the
common code in the DSA core.
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
drivers/net/dsa/qca/qca8k-8xxx.c | 11 +-
drivers/net/dsa/qca/qca8k-leds.c | 255 +++++--------------------------
drivers/net/dsa/qca/qca8k.h | 9 --
drivers/net/dsa/qca/qca8k_leds.h | 21 ++-
4 files changed, 56 insertions(+), 240 deletions(-)
diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index ec57d9d52072..4929894a2b5d 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1838,10 +1838,6 @@ qca8k_setup(struct dsa_switch *ds)
if (ret)
return ret;
- ret = qca8k_setup_led_ctrl(priv);
- if (ret)
- return ret;
-
qca8k_setup_pcs(priv, &priv->pcs_port_0, 0);
qca8k_setup_pcs(priv, &priv->pcs_port_6, 6);
@@ -2018,6 +2014,13 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
.port_lag_leave = qca8k_port_lag_leave,
.conduit_state_change = qca8k_conduit_change,
.connect_tag_protocol = qca8k_connect_tag_protocol,
+#ifdef CONFIG_NET_DSA_QCA8K_LEDS_SUPPORT
+ .led_brightness_set = qca8k_led_brightness_set,
+ .led_blink_set = qca8k_led_blink_set,
+ .led_hw_control_is_supported = qca8k_led_hw_control_is_supported,
+ .led_hw_control_set = qca8k_led_hw_control_set,
+ .led_hw_control_get = qca8k_led_hw_control_get,
+#endif
};
static int
diff --git a/drivers/net/dsa/qca/qca8k-leds.c b/drivers/net/dsa/qca/qca8k-leds.c
index 90e30c2909e4..febae23b65a9 100644
--- a/drivers/net/dsa/qca/qca8k-leds.c
+++ b/drivers/net/dsa/qca/qca8k-leds.c
@@ -6,18 +6,6 @@
#include "qca8k.h"
#include "qca8k_leds.h"
-static u32 qca8k_phy_to_port(int phy)
-{
- /* Internal PHY 0 has port at index 1.
- * Internal PHY 1 has port at index 2.
- * Internal PHY 2 has port at index 3.
- * Internal PHY 3 has port at index 4.
- * Internal PHY 4 has port at index 5.
- */
-
- return phy + 1;
-}
-
static int
qca8k_get_enable_led_reg(int port_num, int led_num, struct qca8k_led_pattern_en *reg_info)
{
@@ -91,15 +79,15 @@ qca8k_parse_netdev(unsigned long rules, u32 *offload_trigger)
return 0;
}
-static int
-qca8k_led_brightness_set(struct qca8k_led *led,
- enum led_brightness brightness)
+int
+qca8k_led_brightness_set(struct dsa_switch *ds, int port_num,
+ u8 led_num, enum led_brightness brightness)
{
struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
+ struct qca8k_priv *priv = ds->priv;
u32 mask, val;
- qca8k_get_enable_led_reg(led->port_num, led->led_num, ®_info);
+ qca8k_get_enable_led_reg(port_num, led_num, ®_info);
val = QCA8K_LED_ALWAYS_OFF;
if (brightness)
@@ -139,7 +127,7 @@ qca8k_led_brightness_set(struct qca8k_led *led,
* to calculate the shift and the correct reg due to this problem of
* not having a 1:1 map of LED with the regs.
*/
- if (led->port_num == 0 || led->port_num == 4) {
+ if (port_num == 0 || port_num == 4) {
mask = QCA8K_LED_PATTERN_EN_MASK;
val <<= QCA8K_LED_PATTERN_EN_SHIFT;
} else {
@@ -151,51 +139,14 @@ qca8k_led_brightness_set(struct qca8k_led *led,
val << reg_info.shift);
}
-static int
-qca8k_cled_brightness_set_blocking(struct led_classdev *ldev,
- enum led_brightness brightness)
-{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
-
- return qca8k_led_brightness_set(led, brightness);
-}
-
-static enum led_brightness
-qca8k_led_brightness_get(struct qca8k_led *led)
-{
- struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
- u32 val;
- int ret;
-
- qca8k_get_enable_led_reg(led->port_num, led->led_num, ®_info);
-
- ret = regmap_read(priv->regmap, reg_info.reg, &val);
- if (ret)
- return 0;
-
- val >>= reg_info.shift;
-
- if (led->port_num == 0 || led->port_num == 4) {
- val &= QCA8K_LED_PATTERN_EN_MASK;
- val >>= QCA8K_LED_PATTERN_EN_SHIFT;
- } else {
- val &= QCA8K_LED_PHY123_PATTERN_EN_MASK;
- }
-
- /* Assume brightness ON only when the LED is set to always ON */
- return val == QCA8K_LED_ALWAYS_ON;
-}
-
-static int
-qca8k_cled_blink_set(struct led_classdev *ldev,
- unsigned long *delay_on,
- unsigned long *delay_off)
+int
+qca8k_led_blink_set(struct dsa_switch *ds, int port_num, u8 led_num,
+ unsigned long *delay_on,
+ unsigned long *delay_off)
{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
u32 mask, val = QCA8K_LED_ALWAYS_BLINK_4HZ;
struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
+ struct qca8k_priv *priv = ds->priv;
if (*delay_on == 0 && *delay_off == 0) {
*delay_on = 125;
@@ -209,9 +160,9 @@ qca8k_cled_blink_set(struct led_classdev *ldev,
return -EINVAL;
}
- qca8k_get_enable_led_reg(led->port_num, led->led_num, ®_info);
+ qca8k_get_enable_led_reg(port_num, led_num, ®_info);
- if (led->port_num == 0 || led->port_num == 4) {
+ if (port_num == 0 || port_num == 4) {
mask = QCA8K_LED_PATTERN_EN_MASK;
val <<= QCA8K_LED_PATTERN_EN_SHIFT;
} else {
@@ -225,20 +176,18 @@ qca8k_cled_blink_set(struct led_classdev *ldev,
}
static int
-qca8k_cled_trigger_offload(struct led_classdev *ldev, bool enable)
+qca8k_led_trigger_offload(struct qca8k_priv *priv, int port_num, u8 led_num,
+ bool enable)
{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
-
struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
u32 mask, val = QCA8K_LED_ALWAYS_OFF;
- qca8k_get_enable_led_reg(led->port_num, led->led_num, ®_info);
+ qca8k_get_enable_led_reg(port_num, led_num, ®_info);
if (enable)
val = QCA8K_LED_RULE_CONTROLLED;
- if (led->port_num == 0 || led->port_num == 4) {
+ if (port_num == 0 || port_num == 4) {
mask = QCA8K_LED_PATTERN_EN_MASK;
val <<= QCA8K_LED_PATTERN_EN_SHIFT;
} else {
@@ -250,21 +199,18 @@ qca8k_cled_trigger_offload(struct led_classdev *ldev, bool enable)
}
static bool
-qca8k_cled_hw_control_status(struct led_classdev *ldev)
+qca8k_led_hw_control_status(struct qca8k_priv *priv, int port_num, u8 led_num)
{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
-
struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
u32 val;
- qca8k_get_enable_led_reg(led->port_num, led->led_num, ®_info);
+ qca8k_get_enable_led_reg(port_num, led_num, ®_info);
regmap_read(priv->regmap, reg_info.reg, &val);
val >>= reg_info.shift;
- if (led->port_num == 0 || led->port_num == 4) {
+ if (port_num == 0 || port_num == 4) {
val &= QCA8K_LED_PATTERN_EN_MASK;
val >>= QCA8K_LED_PATTERN_EN_SHIFT;
} else {
@@ -274,20 +220,22 @@ qca8k_cled_hw_control_status(struct led_classdev *ldev)
return val == QCA8K_LED_RULE_CONTROLLED;
}
-static int
-qca8k_cled_hw_control_is_supported(struct led_classdev *ldev, unsigned long rules)
+int
+qca8k_led_hw_control_is_supported(struct dsa_switch *ds,
+ int port, u8 led,
+ unsigned long rules)
{
u32 offload_trigger = 0;
return qca8k_parse_netdev(rules, &offload_trigger);
}
-static int
-qca8k_cled_hw_control_set(struct led_classdev *ldev, unsigned long rules)
+int
+qca8k_led_hw_control_set(struct dsa_switch *ds, int port_num, u8 led_num,
+ unsigned long rules)
{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
+ struct qca8k_priv *priv = ds->priv;
u32 offload_trigger = 0;
int ret;
@@ -295,31 +243,31 @@ qca8k_cled_hw_control_set(struct led_classdev *ldev, unsigned long rules)
if (ret)
return ret;
- ret = qca8k_cled_trigger_offload(ldev, true);
+ ret = qca8k_led_trigger_offload(priv, port_num, led_num, true);
if (ret)
return ret;
- qca8k_get_control_led_reg(led->port_num, led->led_num, ®_info);
+ qca8k_get_control_led_reg(port_num, led_num, ®_info);
return regmap_update_bits(priv->regmap, reg_info.reg,
QCA8K_LED_RULE_MASK << reg_info.shift,
offload_trigger << reg_info.shift);
}
-static int
-qca8k_cled_hw_control_get(struct led_classdev *ldev, unsigned long *rules)
+int
+qca8k_led_hw_control_get(struct dsa_switch *ds, int port_num, u8 led_num,
+ unsigned long *rules)
{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
struct qca8k_led_pattern_en reg_info;
- struct qca8k_priv *priv = led->priv;
+ struct qca8k_priv *priv = ds->priv;
u32 val;
int ret;
/* With hw control not active return err */
- if (!qca8k_cled_hw_control_status(ldev))
+ if (!qca8k_led_hw_control_status(priv, port_num, led_num))
return -EINVAL;
- qca8k_get_control_led_reg(led->port_num, led->led_num, ®_info);
+ qca8k_get_control_led_reg(port_num, led_num, ®_info);
ret = regmap_read(priv->regmap, reg_info.reg, &val);
if (ret)
@@ -346,134 +294,3 @@ qca8k_cled_hw_control_get(struct led_classdev *ldev, unsigned long *rules)
return 0;
}
-
-static struct device *qca8k_cled_hw_control_get_device(struct led_classdev *ldev)
-{
- struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev);
- struct qca8k_priv *priv = led->priv;
- struct dsa_port *dp;
-
- dp = dsa_to_port(priv->ds, qca8k_phy_to_port(led->port_num));
- if (!dp)
- return NULL;
- if (dp->user)
- return &dp->user->dev;
- return NULL;
-}
-
-static int
-qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int port_num)
-{
- struct fwnode_handle *led = NULL, *leds = NULL;
- struct led_init_data init_data = { };
- struct dsa_switch *ds = priv->ds;
- enum led_default_state state;
- struct qca8k_led *port_led;
- int led_num, led_index;
- int ret;
-
- leds = fwnode_get_named_child_node(port, "leds");
- if (!leds) {
- dev_dbg(priv->dev, "No Leds node specified in device tree for port %d!\n",
- port_num);
- return 0;
- }
-
- fwnode_for_each_child_node(leds, led) {
- /* Reg represent the led number of the port.
- * Each port can have at most 3 leds attached
- * Commonly:
- * 1. is gigabit led
- * 2. is mbit led
- * 3. additional status led
- */
- if (fwnode_property_read_u32(led, "reg", &led_num))
- continue;
-
- if (led_num >= QCA8K_LED_PORT_COUNT) {
- dev_warn(priv->dev, "Invalid LED reg %d defined for port %d",
- led_num, port_num);
- continue;
- }
-
- led_index = QCA8K_LED_PORT_INDEX(port_num, led_num);
-
- port_led = &priv->ports_led[led_index];
- port_led->port_num = port_num;
- port_led->led_num = led_num;
- port_led->priv = priv;
-
- state = led_init_default_state_get(led);
- switch (state) {
- case LEDS_DEFSTATE_ON:
- port_led->cdev.brightness = 1;
- qca8k_led_brightness_set(port_led, 1);
- break;
- case LEDS_DEFSTATE_KEEP:
- port_led->cdev.brightness =
- qca8k_led_brightness_get(port_led);
- break;
- default:
- port_led->cdev.brightness = 0;
- qca8k_led_brightness_set(port_led, 0);
- }
-
- port_led->cdev.max_brightness = 1;
- port_led->cdev.brightness_set_blocking = qca8k_cled_brightness_set_blocking;
- port_led->cdev.blink_set = qca8k_cled_blink_set;
- port_led->cdev.hw_control_is_supported = qca8k_cled_hw_control_is_supported;
- port_led->cdev.hw_control_set = qca8k_cled_hw_control_set;
- port_led->cdev.hw_control_get = qca8k_cled_hw_control_get;
- port_led->cdev.hw_control_get_device = qca8k_cled_hw_control_get_device;
- port_led->cdev.hw_control_trigger = "netdev";
- init_data.default_label = ":port";
- init_data.fwnode = led;
- init_data.devname_mandatory = true;
- init_data.devicename = kasprintf(GFP_KERNEL, "%s:0%d", ds->user_mii_bus->id,
- port_num);
- if (!init_data.devicename)
- return -ENOMEM;
-
- ret = devm_led_classdev_register_ext(priv->dev, &port_led->cdev, &init_data);
- if (ret)
- dev_warn(priv->dev, "Failed to init LED %d for port %d", led_num, port_num);
-
- kfree(init_data.devicename);
- }
-
- return 0;
-}
-
-int
-qca8k_setup_led_ctrl(struct qca8k_priv *priv)
-{
- struct fwnode_handle *ports, *port;
- int port_num;
- int ret;
-
- ports = device_get_named_child_node(priv->dev, "ports");
- if (!ports) {
- dev_info(priv->dev, "No ports node specified in device tree!");
- return 0;
- }
-
- fwnode_for_each_child_node(ports, port) {
- if (fwnode_property_read_u32(port, "reg", &port_num))
- continue;
-
- /* Skip checking for CPU port 0 and CPU port 6 as not supported */
- if (port_num == 0 || port_num == 6)
- continue;
-
- /* Each port can have at most 3 different leds attached.
- * Switch port starts from 0 to 6, but port 0 and 6 are CPU
- * port. The port index needs to be decreased by one to identify
- * the correct port for LED setup.
- */
- ret = qca8k_parse_port_leds(priv, port, qca8k_port_to_phy(port_num));
- if (ret)
- return ret;
- }
-
- return 0;
-}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 2ac7e88f8da5..bf0f78f5390d 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -433,14 +433,6 @@ struct qca8k_led_pattern_en {
u8 shift;
};
-struct qca8k_led {
- u8 port_num;
- u8 led_num;
- u16 old_rule;
- struct qca8k_priv *priv;
- struct led_classdev cdev;
-};
-
struct qca8k_priv {
u8 switch_id;
u8 switch_revision;
@@ -465,7 +457,6 @@ struct qca8k_priv {
struct qca8k_pcs pcs_port_0;
struct qca8k_pcs pcs_port_6;
const struct qca8k_match_data *info;
- struct qca8k_led ports_led[QCA8K_LED_COUNT];
};
struct qca8k_mib_desc {
diff --git a/drivers/net/dsa/qca/qca8k_leds.h b/drivers/net/dsa/qca/qca8k_leds.h
index ab367f05b173..1c020d0f2fdc 100644
--- a/drivers/net/dsa/qca/qca8k_leds.h
+++ b/drivers/net/dsa/qca/qca8k_leds.h
@@ -5,12 +5,17 @@
/* Leds Support function */
#ifdef CONFIG_NET_DSA_QCA8K_LEDS_SUPPORT
-int qca8k_setup_led_ctrl(struct qca8k_priv *priv);
-#else
-static inline int qca8k_setup_led_ctrl(struct qca8k_priv *priv)
-{
- return 0;
-}
-#endif
-
+int qca8k_led_brightness_set(struct dsa_switch *ds, int port_num,
+ u8 led_num, enum led_brightness brightness);
+int qca8k_led_blink_set(struct dsa_switch *ds, int port_num, u8 led_num,
+ unsigned long *delay_on,
+ unsigned long *delay_off);
+int qca8k_led_hw_control_is_supported(struct dsa_switch *ds,
+ int port, u8 led,
+ unsigned long rules);
+int qca8k_led_hw_control_set(struct dsa_switch *ds, int port_num, u8 led_num,
+ unsigned long rules);
+int qca8k_led_hw_control_get(struct dsa_switch *ds, int port_num, u8 led_num,
+ unsigned long *rules);
+#endif /* CONFIG_NET_DSA_QCA8K_LEDS_SUPPORT */
#endif /* __QCA8K_LEDS_H */
--
2.42.0
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