[PATCH] Staging: fbtft: Fix wrong check in fbtft_write_wmem16_bus8()

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We actually want to set the gpio pin if it's avilable, not the other way
around.

Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
---
 drivers/staging/fbtft/fbtft-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index 2ea814d0dca5..63c65dd67b17 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -135,7 +135,7 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 	remain = len / 2;
 	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 
-	if (!par->gpio.dc)
+	if (par->gpio.dc)
 		gpiod_set_value(par->gpio.dc, 1);
 
 	/* non buffered write */
-- 
2.22.0

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