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spi: qup: Add SPI_CPOL configuration support

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

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ivan T. Ivanov 2014-12-16 12:21:55 +02:00 committed by Mark Brown
parent 97bf6af1f9
commit 0667dd5f6c
1 changed files with 10 additions and 1 deletions
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11
drivers/spi/spi-qup.c
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@ -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)
{
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;
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);
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);
if (spi->mode & SPI_LOOP)