From ab09e0406ffd42d26fc9a6dcbb626f9eb1da9160 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 23 Sep 2009 23:32:34 +0000
Subject: [PATCH] spi/bfin_spi: fix up some unused/misleading comments
Reported-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
drivers/spi/spi_bfin5xx.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 5e07f498b495..045c82a36164 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -44,9 +44,6 @@ MODULE_LICENSE("GPL");
#define QUEUE_RUNNING 0
#define QUEUE_STOPPED 1
-/* Value to send if no TX value is supplied */
-#define SPI_IDLE_TXVAL 0x0000
-
struct driver_data {
/* Driver model hookup */
struct platform_device *pdev;
@@ -581,7 +578,7 @@ static void bfin_spi_pump_transfers(unsigned long data)
udelay(previous->delay_usecs);
}
- /* Setup the transfer state based on the type of transfer */
+ /* Flush any existing transfers that may be sitting in the hardware */
if (bfin_spi_flush(drv_data) == 0) {
dev_err(&drv_data->pdev->dev, "pump_transfers: flush failed\n");
message->status = -EIO;
@@ -661,7 +658,6 @@ static void bfin_spi_pump_transfers(unsigned long data)
"transfer: drv_data->write is %p, chip->write is %p\n",
drv_data->write, chip->write);
- /* speed and width has been set on per message */
message->state = RUNNING_STATE;
dma_config = 0;
@@ -966,7 +962,7 @@ static u16 ssel[][MAX_SPI_SSEL] = {
P_SPI2_SSEL6, P_SPI2_SSEL7},
};
-/* first setup for new devices */
+/* setup for devices (may be called multiple times -- not just first setup) */
static int bfin_spi_setup(struct spi_device *spi)
{
struct bfin5xx_spi_chip *chip_info;