linux-kernel - [PATCH 04/26] Staging: fbtft: flexfb: Switch to the gpio descriptor interface

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Date:   Sun, 25 Nov 2018 16:56:29 +0530
From:   Nishad Kamdar <nishadkamdar@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org
Subject: [PATCH 04/26] Staging: fbtft: flexfb: Switch to the gpio descriptor
 interface

This switches the flexfb.c to use GPIO descriptors
rather than numerical gpios.

Signed-off-by: Nishad Kamdar <nishadkamdar@...il.com>
---
 drivers/staging/fbtft/flexfb.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/fbtft/flexfb.c b/drivers/staging/fbtft/flexfb.c
index 2af474469e7d..c5fa59105a43 100644
--- a/drivers/staging/fbtft/flexfb.c
+++ b/drivers/staging/fbtft/flexfb.c
@@ -9,7 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/vmalloc.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -521,7 +521,7 @@ static int flexfb_verify_gpios_dc(struct fbtft_par *par)
 {
 	fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__);
 
-	if (par->gpio.dc < 0) {
+	if (!par->gpio.dc) {
 		dev_err(par->info->device,
 			"Missing info about 'dc' gpio. Aborting.\n");
 		return -EINVAL;
@@ -537,22 +537,22 @@ static int flexfb_verify_gpios_db(struct fbtft_par *par)
 
 	fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__);
 
-	if (par->gpio.dc < 0) {
+	if (!par->gpio.dc) {
 		dev_err(par->info->device, "Missing info about 'dc' gpio. Aborting.\n");
 		return -EINVAL;
 	}
-	if (par->gpio.wr < 0) {
+	if (!par->gpio.wr) {
 		dev_err(par->info->device, "Missing info about 'wr' gpio. Aborting.\n");
 		return -EINVAL;
 	}
-	if (latched && (par->gpio.latch < 0)) {
+	if (latched && !par->gpio.latch) {
 		dev_err(par->info->device, "Missing info about 'latch' gpio. Aborting.\n");
 		return -EINVAL;
 	}
 	if (latched)
 		num_db = buswidth / 2;
 	for (i = 0; i < num_db; i++) {
-		if (par->gpio.db[i] < 0) {
+		if (!par->gpio.db[i]) {
 			dev_err(par->info->device,
 				"Missing info about 'db%02d' gpio. Aborting.\n",
 				i);
-- 
2.17.1