[U-Boot] [PATCH 01/14] spi: atmel: Add ifdef for DM_GPIO code

Jagan Teki
2018-03-14T13:16:31Z

Few boards are configuring gpio directly from board instead
using drivers/gpio so add ifdef for DM_GPIO to compatible
for both the cases.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
drivers/spi/atmel_spi.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index 8010ab434c..3cdfd366ab 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -236,7 +236,9 @@ struct atmel_spi_priv {
unsigned int freq; /* Default frequency */
unsigned int mode;
ulong bus_clk_rate;
+#ifdef CONFIG_DM_GPIO
struct gpio_desc cs_gpios[MAX_CS_COUNT];
+#endif
};

static int atmel_spi_claim_bus(struct udevice *dev)
@@ -291,6 +293,7 @@ static int atmel_spi_release_bus(struct udevice *dev)

static void atmel_spi_cs_activate(struct udevice *dev)
{
+#ifdef CONFIG_DM_GPIO
struct udevice *bus = dev_get_parent(dev);
struct atmel_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
@@ -300,10 +303,12 @@ static void atmel_spi_cs_activate(struct udevice *dev)
return;

dm_gpio_set_value(&priv->cs_gpios[cs], 0);
+#endif
}

static void atmel_spi_cs_deactivate(struct udevice *dev)
{
+#ifdef CONFIG_DM_GPIO
struct udevice *bus = dev_get_parent(dev);
struct atmel_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
@@ -313,6 +318,7 @@ static void atmel_spi_cs_deactivate(struct udevice *dev)
return;

dm_gpio_set_value(&priv->cs_gpios[cs], 1);
+#endif
}

static int atmel_spi_xfer(struct udevice *dev, unsigned int bitlen,
@@ -462,8 +468,7 @@ static int atmel_spi_enable_clk(struct udevice *bus)
static int atmel_spi_probe(struct udevice *bus)
{
struct atmel_spi_platdata *bus_plat = dev_get_platdata(bus);
- struct atmel_spi_priv *priv = dev_get_priv(bus);
- int i, ret;
+ int ret;

ret = atmel_spi_enable_clk(bus);
if (ret)
@@ -471,6 +476,10 @@ static int atmel_spi_probe(struct udevice *bus)

bus_plat->regs = (struct at91_spi *)devfdt_get_addr(bus);

+#ifdef CONFIG_DM_GPIO
+ struct atmel_spi_priv *priv = dev_get_priv(bus);
+ int i;
+
ret = gpio_request_list_by_name(bus, "cs-gpios", priv->cs_gpios,
ARRAY_SIZE(priv->cs_gpios), 0);
if (ret < 0) {
@@ -485,6 +494,7 @@ static int atmel_spi_probe(struct udevice *bus)
dm_gpio_set_dir_flags(&priv->cs_gpios[i],
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
}
+#endif

writel(ATMEL_SPI_CR_SWRST, &bus_plat->regs->cr);

--
2.14.3