From 329c4bc70b3c9dc7f0d3774f073c12ff34e17e68 Mon Sep 17 00:00:00 2001
From: wengjun1 <wengjun1@motorola.com>
Date: Fri, 5 Nov 2021 16:16:31 +0800
Subject: [PATCH] dlkm: Add check if panel is available for gt9916s

- Add if panel is available logic for gt9916s with
using spi bus.

Change-Id: I0489672829c2e411f58a1799e35cf05024f7a75b
Signed-off-by: wengjun1 <wengjun1@motorola.com>
Reviewed-on: https://gerrit.mot.com/2108636
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: litong <litong20@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
---
 .../input/touchscreen/goodix_berlin_mmi/goodix_brl_spi.c   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/touchscreen/goodix_berlin_mmi/goodix_brl_spi.c b/drivers/input/touchscreen/goodix_berlin_mmi/goodix_brl_spi.c
index e5cdf8c5ebb5..94fdbd3a295a 100644
--- a/drivers/input/touchscreen/goodix_berlin_mmi/goodix_brl_spi.c
+++ b/drivers/input/touchscreen/goodix_berlin_mmi/goodix_brl_spi.c
@@ -19,6 +19,8 @@
 #include <linux/spi/spi.h>
 
 #include "goodix_ts_core.h"
+#include <linux/mmi_device.h>
+
 #define TS_DRIVER_NAME		"goodix_ts"
 
 #define SPI_TRANS_PREFIX_LEN    1
@@ -197,6 +199,11 @@ static int goodix_spi_probe(struct spi_device *spi)
 
 	ts_info("goodix spi probe in");
 
+	if (spi->dev.of_node && !mmi_device_is_available(spi->dev.of_node)) {
+		ts_err("%s mmi: device not supported\n", __func__);
+		return -ENODEV;
+	}
+
 	/* init spi_device */
 	spi->mode            = SPI_MODE_0;
 	spi->bits_per_word   = 8;