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spi: rspi: Factor out handling of common mode bits
Basic SPI features like clock phase/polarity and loopback mode are common to all RSPI variants. Factor them out to reduce duplication. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200218105810.902-2-geert+renesas@glider.be Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -239,7 +239,7 @@ struct spi_ops {
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int (*set_config_register)(struct rspi_data *rspi, int access_size);
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int (*transfer_one)(struct spi_controller *ctlr,
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struct spi_device *spi, struct spi_transfer *xfer);
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u16 mode_bits;
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u16 extra_mode_bits;
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u16 flags;
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u16 fifo_size;
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u8 num_hw_ss;
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@ -1122,7 +1122,6 @@ static int rspi_remove(struct platform_device *pdev)
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static const struct spi_ops rspi_ops = {
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.set_config_register = rspi_set_config_register,
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.transfer_one = rspi_transfer_one,
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.mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP,
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.flags = SPI_CONTROLLER_MUST_TX,
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.fifo_size = 8,
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.num_hw_ss = 2,
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@ -1131,7 +1130,6 @@ static const struct spi_ops rspi_ops = {
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static const struct spi_ops rspi_rz_ops = {
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.set_config_register = rspi_rz_set_config_register,
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.transfer_one = rspi_rz_transfer_one,
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.mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP,
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.flags = SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX,
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.fifo_size = 8, /* 8 for TX, 32 for RX */
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.num_hw_ss = 1,
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@ -1140,8 +1138,7 @@ static const struct spi_ops rspi_rz_ops = {
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static const struct spi_ops qspi_ops = {
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.set_config_register = qspi_set_config_register,
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.transfer_one = qspi_transfer_one,
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.mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP |
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SPI_TX_DUAL | SPI_TX_QUAD |
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.extra_mode_bits = SPI_TX_DUAL | SPI_TX_QUAD |
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SPI_RX_DUAL | SPI_RX_QUAD,
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.flags = SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX,
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.fifo_size = 32,
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@ -1258,7 +1255,7 @@ static int rspi_probe(struct platform_device *pdev)
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ctlr->transfer_one = ops->transfer_one;
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ctlr->prepare_message = rspi_prepare_message;
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ctlr->unprepare_message = rspi_unprepare_message;
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ctlr->mode_bits = ops->mode_bits;
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ctlr->mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP | ops->extra_mode_bits;
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ctlr->flags = ops->flags;
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ctlr->dev.of_node = pdev->dev.of_node;
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ctlr->use_gpio_descriptors = true;
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