diff options
| author | Jianhua Lu <lujianhua000@gmail.com> | 2024-01-29 15:28:29 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:19:55 +0300 |
| commit | f582a249103045b2fae8ebe2e7bcc1cab3c0b75a (patch) | |
| tree | 25c541907315edd36ff6407bc692cedd66036dd9 | |
| parent | f3dfffb3447455e9afb9c5858a4eb16ad90f0346 (diff) | |
| download | linux-f582a249103045b2fae8ebe2e7bcc1cab3c0b75a.tar.xz | |
backlight: ktz8866: Correct the check for of_property_read_u32
[ Upstream commit f1ac3c9825f99c93a9833beee6b78aa386e55b0b ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/video/backlight/ktz8866.c | 6 |
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 { |