From b277bd53176d4c54c5754a73a4811449361fe1ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
Date: Mon, 22 Jun 2020 17:17:09 +0200
Subject: [PATCH 082/463] Input: goodix: Add config debugfs file

Signed-off-by: Ondrej Jirman <megi@xff.cz>
---
 drivers/input/touchscreen/goodix.c | 17 +++++++++++++++++
 drivers/input/touchscreen/goodix.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index 435714f18c23a..b0a506ed45d61 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -22,6 +22,7 @@
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/of.h>
+#include <linux/debugfs.h>
 #include <asm/unaligned.h>
 #include "goodix.h"
 
@@ -1028,6 +1029,16 @@ static int goodix_get_gpio_config(struct goodix_ts_data *ts)
 	return 0;
 }
 
+static int ts_config_bin_show(struct seq_file *s, void *data)
+{
+        struct goodix_ts_data *ts = s->private;
+
+        seq_write(s, ts->config, ts->chip->config_len);
+
+        return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(ts_config_bin);
+
 /**
  * goodix_read_config - Read the embedded configuration of the panel
  *
@@ -1066,6 +1077,10 @@ static void goodix_read_config(struct goodix_ts_data *ts)
 	}
 
 	ts->chip->calc_config_checksum(ts);
+
+        ts->debug_root = debugfs_create_dir("goodix", NULL);
+        debugfs_create_file("config.bin", 0444, ts->debug_root, ts,
+                            &ts_config_bin_fops);
 }
 
 /**
@@ -1409,6 +1424,8 @@ static void goodix_ts_remove(struct i2c_client *client)
 
 	if (ts->load_cfg_from_disk)
 		wait_for_completion(&ts->firmware_loading_complete);
+
+        debugfs_remove(ts->debug_root);
 }
 
 static int goodix_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/goodix.h b/drivers/input/touchscreen/goodix.h
index 87797cc88b324..7c44aa110ee64 100644
--- a/drivers/input/touchscreen/goodix.h
+++ b/drivers/input/touchscreen/goodix.h
@@ -104,6 +104,7 @@ struct goodix_ts_data {
 	u8 main_clk[GOODIX_MAIN_CLK_LEN];
 	int bak_ref_len;
 	u8 *bak_ref;
+        struct dentry *debug_root;
 };
 
 int goodix_i2c_read(struct i2c_client *client, u16 reg, u8 *buf, int len);
-- 
2.46.0

