The core will only work if it's clock is enabled. This patch is a
minor enhancement to make sure that's the case.
Signed-off-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
---
drivers/hwmon/axi-fan-control.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/hwmon/axi-fan-control.c b/drivers/hwmon/axi-fan-control.c
index e3f6b03e6764..901d1588234d 100644
--- a/drivers/hwmon/axi-fan-control.c
+++ b/drivers/hwmon/axi-fan-control.c
@@ -351,6 +351,11 @@ static int axi_fan_control_init(struct axi_fan_control_data *ctl,
return ret;
}
+static void axi_fan_control_clk_disable(void *clk)
+{
+ clk_disable_unprepare(clk);
+}
+
static const struct hwmon_channel_info *axi_fan_control_info[] = {
HWMON_CHANNEL_INFO(pwm, HWMON_PWM_INPUT),
HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT | HWMON_F_FAULT | HWMON_F_LABEL),
@@ -406,6 +411,14 @@ static int axi_fan_control_probe(struct platform_device *pdev)
return PTR_ERR(clk);
}
+ ret = clk_prepare_enable(clk);
+ if (ret)
+ return ret;
+
+ ret = devm_add_action_or_reset(&pdev->dev, axi_fan_control_clk_disable, clk);
+ if (ret)
+ return ret;
+
ctl->clk_rate = clk_get_rate(clk);
if (!ctl->clk_rate)
return -EINVAL;
--
2.32.0
