From 77997cebd91e706546a64e9a3a7856d9dce209d9 Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Sun, 26 Jul 2020 02:38:31 +0200
Subject: 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(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 127b34dcc5b3..8099556fef85 100644
--- 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>
@@ -7002,6 +7003,22 @@ static void rtl_tally_reset(struct r8152 *tp)
 	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;
@@ -7043,6 +7060,8 @@ 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)
@@ -7183,6 +7202,8 @@ static void r8153_init(struct r8152 *tp)
 		tp->coalesce = COALESCE_SLOW;
 		break;
 	}
+
+	r8152_led_configuration(tp);
 }
 
 static void r8153b_init(struct r8152 *tp)
@@ -7265,6 +7286,8 @@ static void r8153b_init(struct r8152 *tp)
 	rtl_tally_reset(tp);
 
 	tp->coalesce = 15000;	/* 15 us */
+
+	r8152_led_configuration(tp);
 }
 
 static void r8153c_init(struct r8152 *tp)
-- 
2.35.3