Re: [PATCH] fbdev: Use of_property_read_bool() for boolean properties

From: Helge Deller
Date: Sat Mar 11 2023 - 07:02:29 EST


On 3/10/23 15:47, Rob Herring wrote:
It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().

Signed-off-by: Rob Herring <robh@xxxxxxxxxx>

applied.

Thanks,
Helge

---
drivers/video/fbdev/offb.c | 4 ++--
drivers/video/fbdev/sm501fb.c | 4 ++--
drivers/video/fbdev/tcx.c | 3 +--
drivers/video/fbdev/xilinxfb.c | 3 +--
4 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index f7ad6bc9d02d..b97d251d894b 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -549,10 +549,10 @@ static void offb_init_nodriver(struct platform_device *parent, struct device_nod
int foreign_endian = 0;

#ifdef __BIG_ENDIAN
- if (of_get_property(dp, "little-endian", NULL))
+ if (of_property_read_bool(dp, "little-endian"))
foreign_endian = FBINFO_FOREIGN_ENDIAN;
#else
- if (of_get_property(dp, "big-endian", NULL))
+ if (of_property_read_bool(dp, "big-endian"))
foreign_endian = FBINFO_FOREIGN_ENDIAN;
#endif

diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c
index f743bfbde2a6..1f3cbe723def 100644
--- a/drivers/video/fbdev/sm501fb.c
+++ b/drivers/video/fbdev/sm501fb.c
@@ -1737,10 +1737,10 @@ static int sm501fb_init_fb(struct fb_info *fb, enum sm501_controller head,

#if defined(CONFIG_OF)
#ifdef __BIG_ENDIAN
- if (of_get_property(info->dev->parent->of_node, "little-endian", NULL))
+ if (of_property_read_bool(info->dev->parent->of_node, "little-endian"))
fb->flags |= FBINFO_FOREIGN_ENDIAN;
#else
- if (of_get_property(info->dev->parent->of_node, "big-endian", NULL))
+ if (of_property_read_bool(info->dev->parent->of_node, "big-endian"))
fb->flags |= FBINFO_FOREIGN_ENDIAN;
#endif
#endif
diff --git a/drivers/video/fbdev/tcx.c b/drivers/video/fbdev/tcx.c
index 01d87f53324d..f2eaf6e7fff6 100644
--- a/drivers/video/fbdev/tcx.c
+++ b/drivers/video/fbdev/tcx.c
@@ -379,8 +379,7 @@ static int tcx_probe(struct platform_device *op)

spin_lock_init(&par->lock);

- par->lowdepth =
- (of_find_property(dp, "tcx-8-bit", NULL) != NULL);
+ par->lowdepth = of_property_read_bool(dp, "tcx-8-bit");

sbusfb_fill_var(&info->var, dp, 8);
info->var.red.length = 8;
diff --git a/drivers/video/fbdev/xilinxfb.c b/drivers/video/fbdev/xilinxfb.c
index 1ac83900a21c..c17cfffd9a84 100644
--- a/drivers/video/fbdev/xilinxfb.c
+++ b/drivers/video/fbdev/xilinxfb.c
@@ -469,8 +469,7 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
pdata.yvirt = prop[1];
}

- if (of_find_property(pdev->dev.of_node, "rotate-display", NULL))
- pdata.rotate_screen = 1;
+ pdata.rotate_screen = of_property_read_bool(pdev->dev.of_node, "rotate-display");

platform_set_drvdata(pdev, drvdata);
return xilinxfb_assign(pdev, drvdata, &pdata);