[PATCH] staging: fbtft: remove unused function fbtft_write_gpio16_wr_latched

[Hungyu Lin <dennylin0707@gmail.com>]

The function fbtft_write_gpio16_wr_latched is not referenced anywhere
in the driver and only contains a stub implementation.

Remove it from the driver.

Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
---
 drivers/staging/fbtft/fbtft-io.c | 7 -------
 drivers/staging/fbtft/fbtft.h    | 1 -
 2 files changed, 8 deletions(-)

diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c
index de1904a443c2..7d331eba947a 100644
--- a/drivers/staging/fbtft/fbtft-io.c
+++ b/drivers/staging/fbtft/fbtft-io.c
@@ -227,10 +227,3 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len)
 	return 0;
 }
 EXPORT_SYMBOL(fbtft_write_gpio16_wr);
-
-int fbtft_write_gpio16_wr_latched(struct fbtft_par *par, void *buf, size_t len)
-{
-	dev_err(par->info->device, "%s: function not implemented\n", __func__);
-	return -1;
-}
-EXPORT_SYMBOL(fbtft_write_gpio16_wr_latched);
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 317be17b95c1..c7afb0fd3943 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -262,7 +262,6 @@ int fbtft_write_spi_emulate_9(struct fbtft_par *par, void *buf, size_t len);
 int fbtft_read_spi(struct fbtft_par *par, void *buf, size_t len);
 int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len);
 int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len);
-int fbtft_write_gpio16_wr_latched(struct fbtft_par *par, void *buf, size_t len);
 
 /* fbtft-bus.c */
 int fbtft_write_vmem8_bus8(struct fbtft_par *par, size_t offset, size_t len);
-- 
2.34.1