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authorJassi Brar <jassi.brar@samsung.com>2010-01-20 13:49:44 -0700
committerGrant Likely <grant.likely@secretlab.ca>2010-01-20 13:49:44 -0700
commitee64a37732c23ab2bcef5fe7785fd237a7e38951 (patch)
treeca004dc2263b7633f934e2290c551857df9645fa /drivers/spi
parentad7de729c60380a48844f885f37451158169c50d (diff)
downloadlinux-ee64a37732c23ab2bcef5fe7785fd237a7e38951.tar.bz2
spi/s3c64xx: Differentiate ip and rate clock
The instance of SPI clock for controller and that used for generating signals ought to be independently handled. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi_s3c64xx.c28
1 files changed, 8 insertions, 20 deletions
diff --git a/drivers/spi/spi_s3c64xx.c b/drivers/spi/spi_s3c64xx.c
index ad93d5d8539c..6d03d8f2de6d 100644
--- a/drivers/spi/spi_s3c64xx.c
+++ b/drivers/spi/spi_s3c64xx.c
@@ -1000,10 +1000,7 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
goto err4;
}
- if (sci->src_clk_nr == S3C64XX_SPI_SRCCLK_PCLK)
- sci->src_clk = sdd->clk;
- else
- sci->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
+ sci->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
if (IS_ERR(sci->src_clk)) {
dev_err(&pdev->dev,
"Unable to acquire clock '%s'\n", sci->src_clk_name);
@@ -1011,7 +1008,7 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
goto err5;
}
- if (sci->src_clk != sdd->clk && clk_enable(sci->src_clk)) {
+ if (clk_enable(sci->src_clk)) {
dev_err(&pdev->dev, "Couldn't enable clock '%s'\n",
sci->src_clk_name);
ret = -EBUSY;
@@ -1053,11 +1050,9 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
err8:
destroy_workqueue(sdd->workqueue);
err7:
- if (sci->src_clk != sdd->clk)
- clk_disable(sci->src_clk);
+ clk_disable(sci->src_clk);
err6:
- if (sci->src_clk != sdd->clk)
- clk_put(sci->src_clk);
+ clk_put(sci->src_clk);
err5:
clk_disable(sdd->clk);
err4:
@@ -1093,11 +1088,8 @@ static int s3c64xx_spi_remove(struct platform_device *pdev)
destroy_workqueue(sdd->workqueue);
- if (sci->src_clk != sdd->clk)
- clk_disable(sci->src_clk);
-
- if (sci->src_clk != sdd->clk)
- clk_put(sci->src_clk);
+ clk_disable(sci->src_clk);
+ clk_put(sci->src_clk);
clk_disable(sdd->clk);
clk_put(sdd->clk);
@@ -1130,9 +1122,7 @@ static int s3c64xx_spi_suspend(struct platform_device *pdev, pm_message_t state)
msleep(10);
/* Disable the clock */
- if (sci->src_clk != sdd->clk)
- clk_disable(sci->src_clk);
-
+ clk_disable(sci->src_clk);
clk_disable(sdd->clk);
sdd->cur_speed = 0; /* Output Clock is stopped */
@@ -1150,9 +1140,7 @@ static int s3c64xx_spi_resume(struct platform_device *pdev)
sci->cfg_gpio(pdev);
/* Enable the clock */
- if (sci->src_clk != sdd->clk)
- clk_enable(sci->src_clk);
-
+ clk_enable(sci->src_clk);
clk_enable(sdd->clk);
s3c64xx_spi_hwinit(sdd, pdev->id);