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authorJianhua Lu <lujianhua000@gmail.com>2024-01-29 15:28:29 +0300
committerLee Jones <lee@kernel.org>2024-03-07 12:03:28 +0300
commitf1ac3c9825f99c93a9833beee6b78aa386e55b0b (patch)
tree030ea2bdbadb34965242f560f1f2188310f99132 /drivers/video
parentb1ba8bcb2d1ffce11b308ce166c9cc28d989e3b9 (diff)
downloadlinux-f1ac3c9825f99c93a9833beee6b78aa386e55b0b.tar.xz
backlight: ktz8866: Correct the check for of_property_read_u32
of_property_read_u32 returns 0 when success, so reverse the return value to get the true value. Fixes: f8449c8f7355 ("backlight: ktz8866: Add support for Kinetic KTZ8866 backlight") Signed-off-by: Jianhua Lu <lujianhua000@gmail.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240129122829.16248-1-lujianhua000@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/backlight/ktz8866.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/video/backlight/ktz8866.c b/drivers/video/backlight/ktz8866.c
index 9c980f2571ee..014877b5a984 100644
--- a/drivers/video/backlight/ktz8866.c
+++ b/drivers/video/backlight/ktz8866.c
@@ -97,20 +97,20 @@ static void ktz8866_init(struct ktz8866 *ktz)
{
unsigned int val = 0;
- if (of_property_read_u32(ktz->client->dev.of_node, "current-num-sinks", &val))
+ if (!of_property_read_u32(ktz->client->dev.of_node, "current-num-sinks", &val))
ktz8866_write(ktz, BL_EN, BIT(val) - 1);
else
/* Enable all 6 current sinks if the number of current sinks isn't specified. */
ktz8866_write(ktz, BL_EN, BIT(6) - 1);
- if (of_property_read_u32(ktz->client->dev.of_node, "kinetic,current-ramp-delay-ms", &val)) {
+ if (!of_property_read_u32(ktz->client->dev.of_node, "kinetic,current-ramp-delay-ms", &val)) {
if (val <= 128)
ktz8866_write(ktz, BL_CFG2, BIT(7) | (ilog2(val) << 3) | PWM_HYST);
else
ktz8866_write(ktz, BL_CFG2, BIT(7) | ((5 + val / 64) << 3) | PWM_HYST);
}
- if (of_property_read_u32(ktz->client->dev.of_node, "kinetic,led-enable-ramp-delay-ms", &val)) {
+ if (!of_property_read_u32(ktz->client->dev.of_node, "kinetic,led-enable-ramp-delay-ms", &val)) {
if (val == 0)
ktz8866_write(ktz, BL_DIMMING, 0);
else {