i2c: designware: Move common probe code into i2c_dw_probe()
There is some code duplication in i2c-designware-platdrv and i2c-designware-pcidrv probe functions. What is even worse that duplication requires i2c_dw_xfer(), i2c_dw_func() and i2c_dw_isr() i2c-designware-core functions to be exported. Therefore move common code into new i2c_dw_probe() and make functions above local to i2c-designware-core. While merging the code patch does following functional changes: - I2C Adapter name will be "Synopsys DesignWare I2C adapter". Previously it was used for platform and ACPI devices but PCI device used "i2c-designware-pci". - Using device name for interrupt name. Previous it was platform device name, ACPI device name or "i2c-designware-pci". - Error code from devm_request_irq() and i2c_add_numbered_adapter() will be printed in case of error. Signed-off-by: NJarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
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