From 25d11e9ebe0a5560dc057d1261215d9157c0ae8a Mon Sep 17 00:00:00 2001 From: Serge Semin Date: Thu, 28 May 2020 12:33:12 +0300 Subject: [PATCH] dt-bindings: i2c: Convert DW I2C slave to the DW I2C master example dtc currently doesn't support I2C_OWN_SLAVE_ADDRESS flag set in the i2c "reg" property. If dtc finds an i2c-slave sub-node having an address higher than ten-bits wide it'll print an ugly warning: Warning (i2c_bus_reg): /example-2/i2c@1120000/eeprom@64: I2C bus unit address format error, expected "40000064" Warning (i2c_bus_reg): /example-2/i2c@1120000/eeprom@64:reg: I2C address must be less than 10-bits, got "0x40000064" In order to silence dtc up let's replace the corresponding DT binding example with a normal DW I2C master mode-based one. It's done by clearing the I2C_OWN_SLAVE_ADDRESS bit in the reg property and converting the sub-node to be compatible with normal EEPROM like "atmel,24c02". Just revert this commit when dtc is fixed. Signed-off-by: Serge Semin Reviewed-by: Rob Herring Signed-off-by: Wolfram Sang --- .../devicetree/bindings/i2c/snps,designware-i2c.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml index 4bd430b2b41d..dff3f267bdee 100644 --- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml @@ -136,8 +136,8 @@ examples: interrupts = <0>; eeprom@64 { - compatible = "linux,slave-24c02"; - reg = <0x40000064>; + compatible = "atmel,24c02"; + reg = <0x64>; }; }; - | -- 2.20.1