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Commit 0667dd5f authored by Ivan T. Ivanov's avatar Ivan T. Ivanov Committed by Mark Brown
Browse files

spi: qup: Add SPI_CPOL configuration support 



Device support SPI_CPOL, but driver have missed to add
support for this configuration.

Signed-off-by: default avatarIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 97bf6af1

drivers/spi/spi-qup.c

+10 −1
Original line number Original line Diff line number Diff line
@@ -337,7 +337,7 @@ static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id) 
static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)

static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)

{

{

	struct spi_qup *controller = spi_master_get_devdata(spi->master);

	struct spi_qup *controller = spi_master_get_devdata(spi->master);

	u32 config, iomode, mode;

	u32 config, iomode, mode, control;

	int ret, n_words, w_size;

	int ret, n_words, w_size;





	if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) {

	if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) {
@@ -392,6 +392,15 @@ static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) 




	writel_relaxed(iomode, controller->base + QUP_IO_M_MODES);

	writel_relaxed(iomode, controller->base + QUP_IO_M_MODES);





	control = readl_relaxed(controller->base + SPI_IO_CONTROL);



	if (spi->mode & SPI_CPOL)

		control |= SPI_IO_C_CLK_IDLE_HIGH;

	else

		control &= ~SPI_IO_C_CLK_IDLE_HIGH;



	writel_relaxed(control, controller->base + SPI_IO_CONTROL);



	config = readl_relaxed(controller->base + SPI_CONFIG);

	config = readl_relaxed(controller->base + SPI_CONFIG);





	if (spi->mode & SPI_LOOP)

	if (spi->mode & SPI_LOOP)