diff mbox series

i2c: qcom-cci: Stop complaining about DT set clock rate

Message ID 20240824115900.40702-1-bryan.odonoghue@linaro.org
State New
Headers show
Series i2c: qcom-cci: Stop complaining about DT set clock rate | expand

Commit Message

Bryan O'Donoghue Aug. 24, 2024, 11:59 a.m. UTC
It is common practice in the downstream and upstream CCI dt to set CCI
clock rates to 19.2 MHz. It appears to be fairly common for initial code to
set the CCI clock rate to 37.5 MHz.

Applying the widely used CCI clock rates from downstream ought not to cause
warning messages in the upstream kernel where our general policy is to
usually copy downstream hardware clock rates across the range of Qualcomm
drivers.

Drop the warning it is pervasive across CAMSS users but doesn't add any
information or warrant any changes to the DT to align the DT clock rate to
the bootloader clock rate.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/i2c/busses/i2c-qcom-cci.c | 8 --------
 1 file changed, 8 deletions(-)

Comments

Vladimir Zapolskiy Aug. 24, 2024, 12:39 p.m. UTC | #1
On 8/24/24 14:59, Bryan O'Donoghue wrote:
> It is common practice in the downstream and upstream CCI dt to set CCI
> clock rates to 19.2 MHz. It appears to be fairly common for initial code to
> set the CCI clock rate to 37.5 MHz.
> 
> Applying the widely used CCI clock rates from downstream ought not to cause
> warning messages in the upstream kernel where our general policy is to
> usually copy downstream hardware clock rates across the range of Qualcomm
> drivers.
> 
> Drop the warning it is pervasive across CAMSS users but doesn't add any
> information or warrant any changes to the DT to align the DT clock rate to
> the bootloader clock rate.
> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>

--
Best wishes,
Vladimir
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
index 414882c57d7f4..99e4305a33733 100644
--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -602,14 +602,6 @@  static int cci_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (cci_clk_rate != cci->data->cci_clk_rate) {
-		/* cci clock set by the bootloader or via assigned clock rate
-		 * in DT.
-		 */
-		dev_warn(dev, "Found %lu cci clk rate while %lu was expected\n",
-			 cci_clk_rate, cci->data->cci_clk_rate);
-	}
-
 	ret = cci_enable_clocks(cci);
 	if (ret < 0)
 		return ret;