can: tcan4x5x: get rid of false clock errors

tcan4x5x devices only requires the clock "cclk", so call
devm_clk_get() directly. This is done to avoid
m_can_class_get_clocks() that checks for both hclk and cclk and
results in this warning message:

| tcan4x5x spi0.0: no clock found

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Link: https://patch.msgid.link/20241128-mcancclk-v1-1-a93aac64dbae@geanix.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/m_can/tcan4x5x-core.c b/drivers/net/can/m_can/tcan4x5x-core.c
index 84b914056b7d0a7f325baf7c4fe94bd71eac5264..4c94541766072929f84a76ef4054be747d994959 100644 (file)
--- a/drivers/net/can/m_can/tcan4x5x-core.c
+++ b/drivers/net/can/m_can/tcan4x5x-core.c
@@ -409,7 +409,7 @@ static int tcan4x5x_can_probe(struct spi_device *spi)
                priv->power = NULL;
        }
 
-       m_can_class_get_clocks(mcan_class);
+       mcan_class->cclk = devm_clk_get(mcan_class->dev, "cclk");
        if (IS_ERR(mcan_class->cclk)) {
                dev_err(&spi->dev, "no CAN clock source defined\n");
                freq = TCAN4X5X_EXT_CLK_DEF;