rockchip: enable LAN LED configuration

This enables the LEDs on the LAN interfaces.

Signed-off-by: David Bauer <mail@david-bauer.net>

1 files changed, 74 insertions, 0 deletions

diff --git a/target/linux/rockchip/patches-5.4/002-net-usb-r8152-add-LED-configuration-from-OF.patch b/target/linux/rockchip/patches-5.4/002-net-usb-r8152-add-LED-configuration-from-OF.patch
new file mode 100644
index 0000000000..53b6413cf3
--- /dev/null
+++ b/target/linux/rockchip/patches-5.4/002-net-usb-r8152-add-LED-configuration-from-OF.patch
@@ -0,0 +1,74 @@
+From 82985725e071f2a5735052f18e109a32aeac3a0b Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Sun, 26 Jul 2020 02:38:31 +0200
+Subject: [PATCH] net: usb: r8152: add LED configuration from OF
+
+This adds the ability to configure the LED configuration register using
+OF. This way, the correct value for board specific LED configuration can
+be determined.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ drivers/net/usb/r8152.c | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -11,6 +11,7 @@
+ #include <linux/mii.h>
+ #include <linux/ethtool.h>
+ #include <linux/usb.h>
++#include <linux/of.h>
+ #include <linux/crc32.h>
+ #include <linux/if_vlan.h>
+ #include <linux/uaccess.h>
+@@ -4363,6 +4364,22 @@ static void rtl_tally_reset(struct r8152
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data);
+ }
+ 
++static int r8152_led_configuration(struct r8152 *tp)
++{
++	u32 led_data;
++	int ret;
++
++	ret = of_property_read_u32(tp->udev->dev.of_node, "realtek,led-data",
++								&led_data);
++
++	if (ret)
++		return ret;
++	
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_LEDSEL, led_data);
++
++	return 0;
++}
++
+ static void r8152b_init(struct r8152 *tp)
+ {
+ 	u32 ocp_data;
+@@ -4404,6 +4421,8 @@ static void r8152b_init(struct r8152 *tp
+ 	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
+ 	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
+ 	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++
++	r8152_led_configuration(tp);
+ }
+ 
+ static void r8153_init(struct r8152 *tp)
+@@ -4533,6 +4552,8 @@ static void r8153_init(struct r8152 *tp)
+ 		tp->coalesce = COALESCE_SLOW;
+ 		break;
+ 	}
++
++	r8152_led_configuration(tp);
+ }
+ 
+ static void r8153b_init(struct r8152 *tp)
+@@ -4609,6 +4630,8 @@ static void r8153b_init(struct r8152 *tp
+ 	rtl_tally_reset(tp);
+ 
+ 	tp->coalesce = 15000;	/* 15 us */
++
++	r8152_led_configuration(tp);
+ }
+ 
+ static int rtl8152_pre_reset(struct usb_interface *intf)