[PATCH v7 2/2] i2c: spacemit: drop warning when clock-frequency property is absent

[Troy Mitchell <troy.mitchell@linux.spacemit.com>]

The clock-frequency property is optional according to the DT binding.
Do not emit a warning when the property is missing and fall back to the
default frequency instead.

Reviewed-by: Alex Elder <elder@riscstar.com>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
Changelog in v7:
- add Alex's tag
- Link to v6: https://lore.kernel.org/all/20260429-k1-i2c-ilcr-v6-2-1c7a5a5a8b24@linux.spacemit.com/

Changelog in v6:
- drop Fixes tag per maintainer feedback (this is not a bug fix)
- change dev_warn to dev_info when clock-frequency is absent (it is optional)
- Link to v5: https://lore.kernel.org/r/20251226-k1-i2c-ilcr-v5-0-b5807b7dd0e6@linux.spacemit.com
---
 drivers/i2c/busses/i2c-k1.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-k1.c b/drivers/i2c/busses/i2c-k1.c
index c6fe2052e479..7cf5c05a20d2 100644
--- a/drivers/i2c/busses/i2c-k1.c
+++ b/drivers/i2c/busses/i2c-k1.c
@@ -833,9 +833,7 @@ static int spacemit_i2c_probe(struct platform_device *pdev)
 	if (!i2c)
 		return -ENOMEM;
 
-	ret = of_property_read_u32(of_node, "clock-frequency", &i2c->clock_freq);
-	if (ret && ret != -EINVAL)
-		dev_warn(dev, "failed to read clock-frequency property: %d\n", ret);
+	of_property_read_u32(of_node, "clock-frequency", &i2c->clock_freq);
 
 	/* For now, this driver doesn't support high-speed. */
 	if (i2c->clock_freq > SPACEMIT_I2C_MAX_STANDARD_MODE_FREQ &&
@@ -844,7 +842,7 @@ static int spacemit_i2c_probe(struct platform_device *pdev)
 	} else if (i2c->clock_freq && i2c->clock_freq <= SPACEMIT_I2C_MAX_STANDARD_MODE_FREQ) {
 		i2c->mode = SPACEMIT_MODE_STANDARD;
 	} else {
-		dev_warn(i2c->dev, "invalid clock-frequency, fallback to fast mode");
+		dev_info(dev, "clock-frequency not set or out of range, using fast mode\n");
 		i2c->mode = SPACEMIT_MODE_FAST;
 		i2c->clock_freq = SPACEMIT_I2C_MAX_FAST_MODE_FREQ;
 	}

-- 
2.54.0