[PATCH v2] staging: ccree: Convert to platform_{get,set}_drvdata()

From: sunil . m
Date: Thu Sep 21 2017 - 08:17:59 EST


From: Suniel Mahesh <sunil.m@xxxxxxxxxxxx>

Platform devices are expected to use wrapper functions,
platform_{get,set}_drvdata() with platform_device as argument,
for getting and setting the driver data. dev_{get,set}_drvdata()
are using &plat_dev->dev.
For wrapper functions we can directly pass a struct platform_device.

dev_set_drvdata() is redundant and therefore removed. The driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Suniel Mahesh <sunil.m@xxxxxxxxxxxx>
---
Changes for v2:
- Rebased on top of staging-testing.
---
Note:
- Patch was tested and built(ARCH=arm) on next-20170921.
No build issues reported, however it was not tested on
real hardware.
---
drivers/staging/ccree/ssi_driver.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/ssi_driver.c
index 6d16220..53b4a8c 100644
--- a/drivers/staging/ccree/ssi_driver.c
+++ b/drivers/staging/ccree/ssi_driver.c
@@ -236,7 +236,7 @@ static int init_cc_resources(struct platform_device *plat_dev)
rc = -ENOMEM;
goto post_drvdata_err;
}
- dev_set_drvdata(&plat_dev->dev, new_drvdata);
+ platform_set_drvdata(plat_dev, new_drvdata);
new_drvdata->plat_dev = plat_dev;

new_drvdata->clk = of_clk_get(np, 0);
@@ -415,7 +415,6 @@ static int init_cc_resources(struct platform_device *plat_dev)
cc_clk_off(new_drvdata);
post_drvdata_err:
SSI_LOG_ERR("ccree init error occurred!\n");
- dev_set_drvdata(&plat_dev->dev, NULL);
return rc;
}

@@ -429,7 +428,7 @@ void fini_cc_regs(struct ssi_drvdata *drvdata)
static void cleanup_cc_resources(struct platform_device *plat_dev)
{
struct ssi_drvdata *drvdata =
- (struct ssi_drvdata *)dev_get_drvdata(&plat_dev->dev);
+ (struct ssi_drvdata *)platform_get_drvdata(plat_dev);

ssi_aead_free(drvdata);
ssi_hash_free(drvdata);
@@ -445,7 +444,6 @@ static void cleanup_cc_resources(struct platform_device *plat_dev)
#endif
fini_cc_regs(drvdata);
cc_clk_off(drvdata);
- dev_set_drvdata(&plat_dev->dev, NULL);
}

int cc_clk_on(struct ssi_drvdata *drvdata)
--
1.9.1