touchscreen:fts: fix build break

dsi_panel_read_vendor_extinfo is used in c2f2 dsi_panel driver.
Skip this function first for bring up.
Will revert this commit after dsi_panel driver ready.
Bug: 138816997

Change-Id: Ib5dec6e58622fcfac23ab036bbb99a1362766e29
Signed-off-by: davidycchen <davidycchen@google.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/fts.c b/fts.c
index 550ad5c..c4b373e 100644
--- a/fts.c
+++ b/fts.c
@@ -3918,6 +3918,13 @@ static irqreturn_t fts_interrupt_handler(int irq, void *handle)
 }
 /** @}*/
 
+/*Remove this function after bring up stage*/
+int dsi_panel_read_vendor_extinfo(struct drm_panel *panel, char *buffer,
+				  size_t len)
+{
+	return 0;
+}
+
 /*
  * Read the display panel's extinfo from the display driver.
  *