drivers: dm8806: link speed change interrupt handling

On the interrupt handling, one thread per driver instance is involved
into monitoring the semaphor, sends inside the gpio callback triggered
by the gpio interrupt. Each time, when the link parameters are change,
the DM8806 is generating the gpio interrupt. After getting semaphor,
the application callback function which was linked during initialization
process is called to get the new link parameters with standard API
calls

(cherry picked from commit ef6f804)

Original-Signed-off-by: Robert Slawinski <robert.slawinski1@gmail.com>
GitOrigin-RevId: ef6f804
Cr-Build-Id: 8729035348064486593
Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8729035348064486593
Copybot-Job-Name: zephyr-main-copybot-downstream
Change-Id: I5c7bdc3ff391a3afbb72b084d12583e33f679512
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/6079808
Commit-Queue: Jeremy Bettis <jbettis@chromium.org>
Tested-by: Jeremy Bettis <jbettis@chromium.org>
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Reviewed-by: Jeremy Bettis <jbettis@chromium.org>

drivers/ethernet/phy/Kconfig

@@ -15,6 +15,7 @@ module-str = Log level for Ethernet PHY driver
 module-help = Sets log level for Ethernet PHY Device Drivers.
 source "subsys/net/Kconfig.template.log_config.net"
 source "drivers/ethernet/phy/Kconfig.tja1103"
+source "drivers/ethernet/phy/Kconfig.dm8806"
 
 config PHY_INIT_PRIORITY
 	int "Ethernet PHY driver init priority"
@@ -40,13 +41,6 @@ config PHY_ADIN2111
 	help
 	  Enable ADIN2111 PHY driver.
 
-config PHY_DM8806
-	bool "DM8806 PHY driver"
-	default y
-	depends on DT_HAS_DAVICOM_DM8806_PHY_ENABLED
-	help
-	  Enable DM8806 PHY driver.
-
 config PHY_MICROCHIP_KSZ8081
 	bool "Microchip KSZ8081 PHY Driver"
 	default y

drivers/ethernet/phy/Kconfig.dm8806

@@ -0,0 +1,49 @@
+# Copyright 2024 Robert Slawinski <robert.slawinski1@gmail.com>
+# SPDX-License-Identifier: Apache-2.0
+
+# Davicom PHY DM8806 driver configuration options
+
+menuconfig PHY_DM8806
+	bool "Davicom PHY DM8806 driver"
+	default y
+	depends on DT_HAS_DAVICOM_DM8806_PHY_ENABLED
+	depends on MDIO
+	help
+	  Enable driver for Davicom DM8806 PHY.
+
+if PHY_DM8806
+
+choice PHY_DM8806_TRIGGER_MODE
+	prompt "Trigger mode"
+	default PHY_DM8806_TRIGGER_GLOBAL_THREAD
+	help
+	  Specify the type of triggering to be used by the driver.
+
+config PHY_DM8806_TRIGGER_NONE
+	bool "No trigger"
+
+config PHY_DM8806_TRIGGER_GLOBAL_THREAD
+	bool "Use global thread"
+	depends on GPIO
+	select PHY_DM8806_TRIGGER
+
+endchoice
+
+config PHY_DM8806_TRIGGER
+	bool
+
+config PHY_DM8806_THREAD_PRIORITY
+	int "Thread priority"
+	depends on PHY_DM8806_TRIGGER_GLOBAL_THREAD
+	default 13
+	help
+	  Priority of thread used by the driver to handle interrupts.
+
+config PHY_DM8806_THREAD_STACK_SIZE
+	int "Thread stack size"
+	depends on PHY_DM8806_TRIGGER_GLOBAL_THREAD
+	default 1024
+	help
+	  Stack size of thread used by the driver to handle interrupts.
+
+endif # PHY_DM8806_TRIGGER