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>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index 73861ad22df4..a9132603ab34 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 @@ static int wdt87xx_write_firmware(struct i2c_client *client, const void *chunk)
                                 break;
                         }
 
-                        msleep(50);
+                        msleep(WDT_FLASH_ERASE_DELAY_MS);
 
                         error = wdt87xx_write_data(client, data, start_addr,
                                                    page_size);