On Tue, Sep 29, 2020 at 02:52:33PM +0100, Mark Brown wrote: > On Sun, Sep 20, 2020 at 02:28:55PM +0300, Serge Semin wrote: > > > - /* > > - * SPI mode (SCPOL|SCPH) > > - * CTRLR0[ 8] Serial Clock Phase > > - * CTRLR0[ 9] Serial Clock Polarity > > - */ > > - cr0 |= ((spi->mode & SPI_CPOL) ? 1 : 0) << DWC_SSI_CTRLR0_SCPOL_OFFSET; > > - cr0 |= ((spi->mode & SPI_CPHA) ? 1 : 0) << DWC_SSI_CTRLR0_SCPH_OFFSET; > > > + cr0 |= SSI_MOTO_SPI << DWC_SSI_CTRLR0_FRF_OFFSET; > > + cr0 |= ((spi->mode & SPI_CPOL) ? 1 : 0) << DWC_SSI_CTRLR0_SCPOL_OFFSET; > > + cr0 |= ((spi->mode & SPI_CPHA) ? 1 : 0) << DWC_SSI_CTRLR0_SCPH_OFFSET; > > The new code seems less well commented than the old code here. You are right. The comments are omitted. The thing is that they are absolutely redundant here, for the same reason they haven't been added to the standard update_cr0() method. Both the DWC SSI-capable and standard DW APB SSI-specific part of the code do the same thing: setup the CTRLR0 fields, which are described by the macro definitions. So there is no need to duplicate that information in the comments, moreover seeing it can be inferred from the code. -Sergey
