OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

spi/s3c64xx: Remove unused message queue 

Since the driver has been converted to use the core message pump code
the only use of the messsage queue in the driver is a check to see if
it is empty which will always succeed since nothing ever adds to the
queue. Just remove the queue.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Mark Brown 2013-07-05 18:53:22 +01:00
parent 9f4b323803
commit 900bfe33b6
1 changed files with 0 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/spi/spi-s3c64xx.c
View File

@ -172,7 +172,6 @@ struct s3c64xx_spi_port_config {
* @master: Pointer to the SPI Protocol master.
* @cntrlr_info: Platform specific data for the controller this driver manages.
* @tgl_spi: Pointer to the last CS left untoggled by the cs_change hint.
* @queue: To log SPI xfer requests.
* @lock: Controller specific lock.
* @state: Set of FLAGS to indicate status.
* @rx_dmach: Controller's DMA channel for Rx.
@ -193,7 +192,6 @@ struct s3c64xx_spi_driver_data {
struct spi_master *master;
struct s3c64xx_spi_info *cntrlr_info;
struct spi_device *tgl_spi;
struct list_head queue;
spinlock_t lock;
unsigned long sfr_start;
struct completion xfer_completion;
@ -1056,8 +1054,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
struct s3c64xx_spi_csinfo *cs = spi->controller_data;
struct s3c64xx_spi_driver_data *sdd;
struct s3c64xx_spi_info *sci;
struct spi_message *msg;
unsigned long flags;
int err;
sdd = spi_master_get_devdata(spi->master);
@ -1088,21 +1084,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
sci = sdd->cntrlr_info;
spin_lock_irqsave(&sdd->lock, flags);
list_for_each_entry(msg, &sdd->queue, queue) {
/* Is some mssg is already queued for this device */
if (msg->spi == spi) {
dev_err(&spi->dev,
"setup: attempt while mssg in queue!\n");
spin_unlock_irqrestore(&sdd->lock, flags);
err = -EBUSY;
goto err_msgq;
}
}
spin_unlock_irqrestore(&sdd->lock, flags);
pm_runtime_get_sync(&sdd->pdev->dev);
/* Check if we can provide the requested rate */
@ -1149,7 +1130,6 @@ setup_exit:
/* setup() returns with device de-selected */
disable_cs(sdd, spi);
err_msgq:
gpio_free(cs->line);
spi_set_ctldata(spi, NULL);
@ -1442,7 +1422,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
spin_lock_init(&sdd->lock);
init_completion(&sdd->xfer_completion);
INIT_LIST_HEAD(&sdd->queue);
ret = devm_request_irq(&pdev->dev, irq, s3c64xx_spi_irq, 0,
"spi-s3c64xx", sdd);