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Diffstat (limited to 'target/linux/generic/backport-6.6/801-v6.4-02-net-dsa-qca8k-add-LEDs-basic-support.patch')
-rw-r--r--target/linux/generic/backport-6.6/801-v6.4-02-net-dsa-qca8k-add-LEDs-basic-support.patch435
1 files changed, 0 insertions, 435 deletions
diff --git a/target/linux/generic/backport-6.6/801-v6.4-02-net-dsa-qca8k-add-LEDs-basic-support.patch b/target/linux/generic/backport-6.6/801-v6.4-02-net-dsa-qca8k-add-LEDs-basic-support.patch
deleted file mode 100644
index 409fe9c7a1..0000000000
--- a/target/linux/generic/backport-6.6/801-v6.4-02-net-dsa-qca8k-add-LEDs-basic-support.patch
+++ /dev/null
@@ -1,435 +0,0 @@
-From 1e264f9d2918b5737023c44a23ae04def1095210 Mon Sep 17 00:00:00 2001
-From: Christian Marangi <ansuelsmth@gmail.com>
-Date: Mon, 17 Apr 2023 17:17:24 +0200
-Subject: [PATCH 2/9] net: dsa: qca8k: add LEDs basic support
-
-Add LEDs basic support for qca8k Switch Family by adding basic
-brightness_set() support.
-
-Since these LEDs refelect port status, the default label is set to
-":port". DT binding should describe the color and function of the
-LEDs using standard LEDs api.
-Each LED always have the device name as prefix. The device name is
-composed from the mii bus id and the PHY addr resulting in example
-names like:
-- qca8k-0.0:00:amber:lan
-- qca8k-0.0:00:white:lan
-- qca8k-0.0:01:amber:lan
-- qca8k-0.0:01:white:lan
-
-These LEDs supports only blocking variant of the brightness_set()
-function since they can sleep during access of the switch leds to set
-the brightness.
-
-While at it add to the qca8k header file each mode defined by the Switch
-Documentation for future use.
-
-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/dsa/qca/Kconfig | 8 ++
- drivers/net/dsa/qca/Makefile | 3 +
- drivers/net/dsa/qca/qca8k-8xxx.c | 5 +
- drivers/net/dsa/qca/qca8k-leds.c | 239 +++++++++++++++++++++++++++++++
- drivers/net/dsa/qca/qca8k.h | 60 ++++++++
- drivers/net/dsa/qca/qca8k_leds.h | 16 +++
- 6 files changed, 331 insertions(+)
- create mode 100644 drivers/net/dsa/qca/qca8k-leds.c
- create mode 100644 drivers/net/dsa/qca/qca8k_leds.h
-
---- a/drivers/net/dsa/qca/Kconfig
-+++ b/drivers/net/dsa/qca/Kconfig
-@@ -15,3 +15,11 @@ config NET_DSA_QCA8K
- help
- This enables support for the Qualcomm Atheros QCA8K Ethernet
- switch chips.
-+
-+config NET_DSA_QCA8K_LEDS_SUPPORT
-+ bool "Qualcomm Atheros QCA8K Ethernet switch family LEDs support"
-+ depends on NET_DSA_QCA8K
-+ depends on LEDS_CLASS
-+ help
-+ This enabled support for LEDs present on the Qualcomm Atheros
-+ QCA8K Ethernet switch chips.
---- a/drivers/net/dsa/qca/Makefile
-+++ b/drivers/net/dsa/qca/Makefile
-@@ -2,3 +2,6 @@
- obj-$(CONFIG_NET_DSA_AR9331) += ar9331.o
- obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o
- qca8k-y += qca8k-common.o qca8k-8xxx.o
-+ifdef CONFIG_NET_DSA_QCA8K_LEDS_SUPPORT
-+qca8k-y += qca8k-leds.o
-+endif
---- a/drivers/net/dsa/qca/qca8k-8xxx.c
-+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
-@@ -22,6 +22,7 @@
- #include <linux/dsa/tag_qca.h>
-
- #include "qca8k.h"
-+#include "qca8k_leds.h"
-
- static void
- qca8k_split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
-@@ -1851,6 +1852,10 @@ 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);
-
---- /dev/null
-+++ b/drivers/net/dsa/qca/qca8k-leds.c
-@@ -0,0 +1,239 @@
-+// SPDX-License-Identifier: GPL-2.0
-+#include <linux/regmap.h>
-+#include <net/dsa.h>
-+
-+#include "qca8k.h"
-+#include "qca8k_leds.h"
-+
-+static int
-+qca8k_get_enable_led_reg(int port_num, int led_num, struct qca8k_led_pattern_en *reg_info)
-+{
-+ switch (port_num) {
-+ case 0:
-+ reg_info->reg = QCA8K_LED_CTRL_REG(led_num);
-+ reg_info->shift = QCA8K_LED_PHY0123_CONTROL_RULE_SHIFT;
-+ break;
-+ case 1:
-+ case 2:
-+ case 3:
-+ /* Port 123 are controlled on a different reg */
-+ reg_info->reg = QCA8K_LED_CTRL3_REG;
-+ reg_info->shift = QCA8K_LED_PHY123_PATTERN_EN_SHIFT(port_num, led_num);
-+ break;
-+ case 4:
-+ reg_info->reg = QCA8K_LED_CTRL_REG(led_num);
-+ reg_info->shift = QCA8K_LED_PHY4_CONTROL_RULE_SHIFT;
-+ break;
-+ default:
-+ return -EINVAL;
-+ }
-+
-+ return 0;
-+}
-+
-+static int
-+qca8k_led_brightness_set(struct qca8k_led *led,
-+ enum led_brightness brightness)
-+{
-+ struct qca8k_led_pattern_en reg_info;
-+ struct qca8k_priv *priv = led->priv;
-+ u32 mask, val;
-+
-+ qca8k_get_enable_led_reg(led->port_num, led->led_num, &reg_info);
-+
-+ val = QCA8K_LED_ALWAYS_OFF;
-+ if (brightness)
-+ val = QCA8K_LED_ALWAYS_ON;
-+
-+ /* HW regs to control brightness is special and port 1-2-3
-+ * are placed in a different reg.
-+ *
-+ * To control port 0 brightness:
-+ * - the 2 bit (15, 14) of:
-+ * - QCA8K_LED_CTRL0_REG for led1
-+ * - QCA8K_LED_CTRL1_REG for led2
-+ * - QCA8K_LED_CTRL2_REG for led3
-+ *
-+ * To control port 4:
-+ * - the 2 bit (31, 30) of:
-+ * - QCA8K_LED_CTRL0_REG for led1
-+ * - QCA8K_LED_CTRL1_REG for led2
-+ * - QCA8K_LED_CTRL2_REG for led3
-+ *
-+ * To control port 1:
-+ * - the 2 bit at (9, 8) of QCA8K_LED_CTRL3_REG are used for led1
-+ * - the 2 bit at (11, 10) of QCA8K_LED_CTRL3_REG are used for led2
-+ * - the 2 bit at (13, 12) of QCA8K_LED_CTRL3_REG are used for led3
-+ *
-+ * To control port 2:
-+ * - the 2 bit at (15, 14) of QCA8K_LED_CTRL3_REG are used for led1
-+ * - the 2 bit at (17, 16) of QCA8K_LED_CTRL3_REG are used for led2
-+ * - the 2 bit at (19, 18) of QCA8K_LED_CTRL3_REG are used for led3
-+ *
-+ * To control port 3:
-+ * - the 2 bit at (21, 20) of QCA8K_LED_CTRL3_REG are used for led1
-+ * - the 2 bit at (23, 22) of QCA8K_LED_CTRL3_REG are used for led2
-+ * - the 2 bit at (25, 24) of QCA8K_LED_CTRL3_REG are used for led3
-+ *
-+ * To abstract this and have less code, we use the port and led numm
-+ * 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) {
-+ mask = QCA8K_LED_PATTERN_EN_MASK;
-+ val <<= QCA8K_LED_PATTERN_EN_SHIFT;
-+ } else {
-+ mask = QCA8K_LED_PHY123_PATTERN_EN_MASK;
-+ }
-+
-+ return regmap_update_bits(priv->regmap, reg_info.reg,
-+ mask << reg_info.shift,
-+ 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, &reg_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_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;
-+ init_data.default_label = ":port";
-+ init_data.fwnode = led;
-+ init_data.devname_mandatory = true;
-+ init_data.devicename = kasprintf(GFP_KERNEL, "%s:0%d", ds->slave_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;
-+}
---- a/drivers/net/dsa/qca/qca8k.h
-+++ b/drivers/net/dsa/qca/qca8k.h
-@@ -11,6 +11,7 @@
- #include <linux/delay.h>
- #include <linux/regmap.h>
- #include <linux/gpio.h>
-+#include <linux/leds.h>
- #include <linux/dsa/tag_qca.h>
-
- #define QCA8K_ETHERNET_MDIO_PRIORITY 7
-@@ -85,6 +86,51 @@
- #define QCA8K_MDIO_MASTER_DATA(x) FIELD_PREP(QCA8K_MDIO_MASTER_DATA_MASK, x)
- #define QCA8K_MDIO_MASTER_MAX_PORTS 5
- #define QCA8K_MDIO_MASTER_MAX_REG 32
-+
-+/* LED control register */
-+#define QCA8K_LED_PORT_COUNT 3
-+#define QCA8K_LED_COUNT ((QCA8K_NUM_PORTS - QCA8K_NUM_CPU_PORTS) * QCA8K_LED_PORT_COUNT)
-+#define QCA8K_LED_RULE_COUNT 6
-+#define QCA8K_LED_RULE_MAX 11
-+#define QCA8K_LED_PORT_INDEX(_phy, _led) (((_phy) * QCA8K_LED_PORT_COUNT) + (_led))
-+
-+#define QCA8K_LED_PHY123_PATTERN_EN_SHIFT(_phy, _led) ((((_phy) - 1) * 6) + 8 + (2 * (_led)))
-+#define QCA8K_LED_PHY123_PATTERN_EN_MASK GENMASK(1, 0)
-+
-+#define QCA8K_LED_PHY0123_CONTROL_RULE_SHIFT 0
-+#define QCA8K_LED_PHY4_CONTROL_RULE_SHIFT 16
-+
-+#define QCA8K_LED_CTRL_REG(_i) (0x050 + (_i) * 4)
-+#define QCA8K_LED_CTRL0_REG 0x50
-+#define QCA8K_LED_CTRL1_REG 0x54
-+#define QCA8K_LED_CTRL2_REG 0x58
-+#define QCA8K_LED_CTRL3_REG 0x5C
-+#define QCA8K_LED_CTRL_SHIFT(_i) (((_i) % 2) * 16)
-+#define QCA8K_LED_CTRL_MASK GENMASK(15, 0)
-+#define QCA8K_LED_RULE_MASK GENMASK(13, 0)
-+#define QCA8K_LED_BLINK_FREQ_MASK GENMASK(1, 0)
-+#define QCA8K_LED_BLINK_FREQ_SHITF 0
-+#define QCA8K_LED_BLINK_2HZ 0
-+#define QCA8K_LED_BLINK_4HZ 1
-+#define QCA8K_LED_BLINK_8HZ 2
-+#define QCA8K_LED_BLINK_AUTO 3
-+#define QCA8K_LED_LINKUP_OVER_MASK BIT(2)
-+#define QCA8K_LED_TX_BLINK_MASK BIT(4)
-+#define QCA8K_LED_RX_BLINK_MASK BIT(5)
-+#define QCA8K_LED_COL_BLINK_MASK BIT(7)
-+#define QCA8K_LED_LINK_10M_EN_MASK BIT(8)
-+#define QCA8K_LED_LINK_100M_EN_MASK BIT(9)
-+#define QCA8K_LED_LINK_1000M_EN_MASK BIT(10)
-+#define QCA8K_LED_POWER_ON_LIGHT_MASK BIT(11)
-+#define QCA8K_LED_HALF_DUPLEX_MASK BIT(12)
-+#define QCA8K_LED_FULL_DUPLEX_MASK BIT(13)
-+#define QCA8K_LED_PATTERN_EN_MASK GENMASK(15, 14)
-+#define QCA8K_LED_PATTERN_EN_SHIFT 14
-+#define QCA8K_LED_ALWAYS_OFF 0
-+#define QCA8K_LED_ALWAYS_BLINK_4HZ 1
-+#define QCA8K_LED_ALWAYS_ON 2
-+#define QCA8K_LED_RULE_CONTROLLED 3
-+
- #define QCA8K_GOL_MAC_ADDR0 0x60
- #define QCA8K_GOL_MAC_ADDR1 0x64
- #define QCA8K_MAX_FRAME_SIZE 0x78
-@@ -382,6 +428,19 @@ struct qca8k_pcs {
- int port;
- };
-
-+struct qca8k_led_pattern_en {
-+ u32 reg;
-+ 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;
-@@ -406,6 +465,7 @@ 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 {
---- /dev/null
-+++ b/drivers/net/dsa/qca/qca8k_leds.h
-@@ -0,0 +1,16 @@
-+/* SPDX-License-Identifier: GPL-2.0-only */
-+
-+#ifndef __QCA8K_LEDS_H
-+#define __QCA8K_LEDS_H
-+
-+/* 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
-+
-+#endif /* __QCA8K_LEDS_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 20:23:26 +0000