commit 4e7482332236d9f0c8f6df2e80fd73ad68363c35
author HungNien Chen <hn.chen@weidahitech.com> Mon Sep 05 10:25:36 2016 -0700
committer Dmitry Torokhov <dmitry.torokhov@gmail.com> Mon Sep 05 10:31:47 2016 -0700
tree 6b273bd38077486022094f86f7983b1464737f0d
parent de56bea05b09aa1f3498ee12df8f995aaf259dd7

Input: wdt87xx_i2c - fix the flash erase issue

The spec says that flash erase time is 30ms typical/200ms max, so let's
replace current 50ms wait with 200ms to avoid potential failures.

Signed-off-by: HungNien Chen <hn.chen@weidahitech.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/wdt87xx_i2c.c

diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index 73861ad..a913260 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -23,7 +23,7 @@
 #include <asm/unaligned.h>
 
 #define WDT87XX_NAME		"wdt87xx_i2c"
-#define WDT87XX_DRV_VER		"0.9.7"
+#define WDT87XX_DRV_VER		"0.9.8"
 #define WDT87XX_FW_NAME		"wdt87xx_fw.bin"
 #define WDT87XX_CFG_NAME	"wdt87xx_cfg.bin"
 
@@ -157,6 +157,7 @@
 /* Controller requires minimum 300us between commands */
 #define WDT_COMMAND_DELAY_MS		2
 #define WDT_FLASH_WRITE_DELAY_MS	4
+#define WDT_FLASH_ERASE_DELAY_MS	200
 #define WDT_FW_RESET_TIME		2500
 
 struct wdt87xx_sys_param {
@@ -726,7 +727,7 @@
 				break;
 			}
 
-			msleep(50);
+			msleep(WDT_FLASH_ERASE_DELAY_MS);
 
 			error = wdt87xx_write_data(client, data, start_addr,
 						   page_size);