treewide: replace with error() with pr_err()

U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <[email protected]>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index e2f8342e887..228e714e093 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -474,7 +474,7 @@ static int atmel_spi_probe(struct udevice *bus)
 	ret = gpio_request_list_by_name(bus, "cs-gpios", priv->cs_gpios,
 					ARRAY_SIZE(priv->cs_gpios), 0);
 	if (ret < 0) {
-		error("Can't get %s gpios! Error: %d", bus->name, ret);
+		pr_err("Can't get %s gpios! Error: %d", bus->name, ret);
 		return ret;
 	}
 
diff --git a/drivers/spi/lpc32xx_ssp.c b/drivers/spi/lpc32xx_ssp.c
index c5b766c0dd0..e2a593b9344 100644
--- a/drivers/spi/lpc32xx_ssp.c
+++ b/drivers/spi/lpc32xx_ssp.c
@@ -66,17 +66,17 @@ struct spi_slave *spi_setup_slave(uint bus, uint cs, uint max_hz, uint mode)
 	/* we only set up SSP0 for now, so ignore bus */
 
 	if (mode & SPI_3WIRE) {
-		error("3-wire mode not supported");
+		pr_err("3-wire mode not supported");
 		return NULL;
 	}
 
 	if (mode & SPI_SLAVE) {
-		error("slave mode not supported\n");
+		pr_err("slave mode not supported\n");
 		return NULL;
 	}
 
 	if (mode & SPI_PREAMBLE) {
-		error("preamble byte skipping not supported\n");
+		pr_err("preamble byte skipping not supported\n");
 		return NULL;
 	}