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spi: rspi: Factor out handling of common mode bits

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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>
This commit is contained in:
Geert Uytterhoeven 2020-02-18 11:58:08 +01:00 committed by Mark Brown
parent 32a9d0545c
commit cd982e6c44
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 3 additions and 6 deletions
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9
drivers/spi/spi-rspi.c
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@ -239,7 +239,7 @@ struct spi_ops {
int (*set_config_register)(struct rspi_data *rspi, int access_size);
int (*transfer_one)(struct spi_controller *ctlr,
struct spi_device *spi, struct spi_transfer *xfer);
u16 mode_bits;
u16 extra_mode_bits;
u16 flags;
u16 fifo_size;
u8 num_hw_ss;
@ -1122,7 +1122,6 @@ static int rspi_remove(struct platform_device *pdev)
static const struct spi_ops rspi_ops = {
.set_config_register = rspi_set_config_register,
.transfer_one = rspi_transfer_one,
.mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP,
.flags = SPI_CONTROLLER_MUST_TX,
.fifo_size = 8,
.num_hw_ss = 2,
@ -1131,7 +1130,6 @@ static const struct spi_ops rspi_ops = {
static const struct spi_ops rspi_rz_ops = {
.set_config_register = rspi_rz_set_config_register,
.transfer_one = rspi_rz_transfer_one,
.mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP,
.flags = SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX,
.fifo_size = 8, /* 8 for TX, 32 for RX */
.num_hw_ss = 1,
@ -1140,8 +1138,7 @@ static const struct spi_ops rspi_rz_ops = {
static const struct spi_ops qspi_ops = {
.set_config_register = qspi_set_config_register,
.transfer_one = qspi_transfer_one,
.mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP |
SPI_TX_DUAL | SPI_TX_QUAD |
.extra_mode_bits = SPI_TX_DUAL | SPI_TX_QUAD |
SPI_RX_DUAL | SPI_RX_QUAD,
.flags = SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX,
.fifo_size = 32,
@ -1258,7 +1255,7 @@ static int rspi_probe(struct platform_device *pdev)
ctlr->transfer_one = ops->transfer_one;
ctlr->prepare_message = rspi_prepare_message;
ctlr->unprepare_message = rspi_unprepare_message;
ctlr->mode_bits = ops->mode_bits;
ctlr->mode_bits = SPI_CPHA | SPI_CPOL | SPI_LOOP | ops->extra_mode_bits;
ctlr->flags = ops->flags;
ctlr->dev.of_node = pdev->dev.of_node;
ctlr->use_gpio_descriptors = true;