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arch: cxd56xx: Improve i2c initialize function

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During I2C communication between non-Spresense devices is performed,
the I2C bus may freeze after initialization of the Spresense I2C.
As a workaround, switch the pin mode to I2C at the end of the i2c
initialization function.

Signed-off-by: SPRESENSE <41312067+SPRESENSE@users.noreply.github.com>
This commit is contained in:
SPRESENSE 2025-02-19 17:03:53 +09:00 • committed by Alin Jerpelea
parent d521b926aa
commit 96de2e20c1
1 changed files with 4 additions and 4 deletions
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8
arch/arm/src/cxd56xx/cxd56_i2c.c
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@ -1140,10 +1140,6 @@ struct i2c_master_s *cxd56_i2cbus_initialize(int port)
cxd56_i2c_setfrequency(priv, I2C_DEFAULT_FREQUENCY);
/* Configure pin */
cxd56_i2c_pincontrol(port, true);
/* Attach Interrupt Handler */
irq_attach(priv->irqid, cxd56_i2c_interrupt, priv);
@ -1164,6 +1160,10 @@ struct i2c_master_s *cxd56_i2cbus_initialize(int port)
cxd56_i2c_clock_gate_enable(port);
/* Configure pin */
cxd56_i2c_pincontrol(port, true);
nxmutex_unlock(&priv->lock);
return &priv->dev;
}