[PATCH 15/30] video: fbdev: omapfb: Use kstrtobool() instead of strtobool()

[Christophe JAILLET <christophe.jaillet@wanadoo.fr>]

strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.

In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.

While at it, include the corresponding header file (<linux/kstrtox.h>)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
This patch is part of a serie that axes all usages of strtobool().
Each patch can be applied independently from the other ones.

The last patch of the serie removes the definition of strtobool().

You may not be in copy of the cover letter. So, if needed, it is available
at [1].

[1]: https://lore.kernel.org/all/cover.1667336095.git.christophe.jaillet@wanadoo.fr/
---
 drivers/video/fbdev/omap2/omapfb/dss/display-sysfs.c | 7 ++++---
 drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c | 7 ++++---
 drivers/video/fbdev/omap2/omapfb/dss/overlay-sysfs.c | 3 ++-
 drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c      | 3 ++-
 4 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/dss/display-sysfs.c b/drivers/video/fbdev/omap2/omapfb/dss/display-sysfs.c
index bc5a44c2a144..ae937854403b 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/display-sysfs.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/display-sysfs.c
@@ -10,6 +10,7 @@
 #define DSS_SUBSYS_NAME "DISPLAY"
 
 #include <linux/kernel.h>
+#include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/sysfs.h>
@@ -36,7 +37,7 @@ static ssize_t display_enabled_store(struct omap_dss_device *dssdev,
 	int r;
 	bool enable;
 
-	r = strtobool(buf, &enable);
+	r = kstrtobool(buf, &enable);
 	if (r)
 		return r;
 
@@ -73,7 +74,7 @@ static ssize_t display_tear_store(struct omap_dss_device *dssdev,
 	if (!dssdev->driver->enable_te || !dssdev->driver->get_te)
 		return -ENOENT;
 
-	r = strtobool(buf, &te);
+	r = kstrtobool(buf, &te);
 	if (r)
 		return r;
 
@@ -183,7 +184,7 @@ static ssize_t display_mirror_store(struct omap_dss_device *dssdev,
 	if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
 		return -ENOENT;
 
-	r = strtobool(buf, &mirror);
+	r = kstrtobool(buf, &mirror);
 	if (r)
 		return r;
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c b/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c
index ba21c4a2633d..1b644be5fe2e 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c
@@ -10,6 +10,7 @@
 #define DSS_SUBSYS_NAME "MANAGER"
 
 #include <linux/kernel.h>
+#include <linux/kstrtox.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -246,7 +247,7 @@ static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
 	bool enable;
 	int r;
 
-	r = strtobool(buf, &enable);
+	r = kstrtobool(buf, &enable);
 	if (r)
 		return r;
 
@@ -290,7 +291,7 @@ static ssize_t manager_alpha_blending_enabled_store(
 	if(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
 		return -ENODEV;
 
-	r = strtobool(buf, &enable);
+	r = kstrtobool(buf, &enable);
 	if (r)
 		return r;
 
@@ -329,7 +330,7 @@ static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
 	if (!dss_has_feature(FEAT_CPR))
 		return -ENODEV;
 
-	r = strtobool(buf, &enable);
+	r = kstrtobool(buf, &enable);
 	if (r)
 		return r;
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/overlay-sysfs.c b/drivers/video/fbdev/omap2/omapfb/dss/overlay-sysfs.c
index 601c0beb6de9..1da4fb1c77b4 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/overlay-sysfs.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/overlay-sysfs.c
@@ -13,6 +13,7 @@
 #include <linux/err.h>
 #include <linux/sysfs.h>
 #include <linux/kobject.h>
+#include <linux/kstrtox.h>
 #include <linux/platform_device.h>
 
 #include <video/omapfb_dss.h>
@@ -210,7 +211,7 @@ static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
 	int r;
 	bool enable;
 
-	r = strtobool(buf, &enable);
+	r = kstrtobool(buf, &enable);
 	if (r)
 		return r;
 
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c b/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c
index 06dc41aa0354..831b2c2fbdf9 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c
@@ -15,6 +15,7 @@
 #include <linux/uaccess.h>
 #include <linux/platform_device.h>
 #include <linux/kernel.h>
+#include <linux/kstrtox.h>
 #include <linux/mm.h>
 #include <linux/omapfb.h>
 
@@ -96,7 +97,7 @@ static ssize_t store_mirror(struct device *dev,
 	int r;
 	struct fb_var_screeninfo new_var;
 
-	r = strtobool(buf, &mirror);
+	r = kstrtobool(buf, &mirror);
 	if (r)
 		return r;
 
-- 
2.34.1