[U-Boot] [PATCH v4 16/16] spi: zynq_spi: Store cs value into private data

Store cs value into private data and use it while activating chipselect instead of passing through function.

Signed-off-by: Jagan Teki jteki@openedev.com --- drivers/spi/zynq_spi.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/zynq_spi.c b/drivers/spi/zynq_spi.c index 70d7716..70ddd7f 100644 --- a/drivers/spi/zynq_spi.c +++ b/drivers/spi/zynq_spi.c @@ -61,6 +61,7 @@ struct zynq_spi_platdata { /* zynq spi priv */ struct zynq_spi_priv { struct zynq_spi_regs *regs; + u8 cs; u8 mode; u8 fifo_depth; u32 freq; /* required frequency */ @@ -128,7 +129,7 @@ static int zynq_spi_probe(struct udevice *bus) return 0; }

-static void spi_cs_activate(struct udevice *dev, uint cs) +static void spi_cs_activate(struct udevice *dev) { struct udevice *bus = dev->parent; struct zynq_spi_priv *priv = dev_get_priv(bus); @@ -143,7 +144,7 @@ static void spi_cs_activate(struct udevice *dev, uint cs) * xx01 - cs1 * x011 - cs2 */ - cr |= (~(0x1 << cs) << ZYNQ_SPI_CR_SS_SHIFT) & ZYNQ_SPI_CR_CS_MASK; + cr |= (~(1 << priv->cs) << ZYNQ_SPI_CR_SS_SHIFT) & ZYNQ_SPI_CR_CS_MASK; writel(cr, &regs->cr); }

@@ -199,8 +200,9 @@ static int zynq_spi_xfer(struct udevice *dev, unsigned int bitlen, return -1; }

+ priv->cs = slave_plat->cs; if (flags & SPI_XFER_BEGIN) - spi_cs_activate(dev, slave_plat->cs); + spi_cs_activate(dev);

while (rx_len > 0) { /* Write the data into TX FIFO - tx threshold is fifo_depth */