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hwrng: mxc-rnga - add driver support on boards with device tree 

The driver works well on i.MX31 powered boards with device description
taken from board device tree, the only change to add to the driver is
the missing OF device id, the affected list of included headers and
indentation in platform driver struct are beautified a little.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Kim Phillips <kim.phillips@arm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Vladimir Zapolskiy 2018-03-06 00:21:00 +02:00 committed by Herbert Xu
parent 9885b1bd95
commit a6ab6402c4
1 changed files with 14 additions and 9 deletions
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23
drivers/char/hw_random/mxc-rnga.c
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@ -16,16 +16,13 @@
* This driver is based on other RNG drivers.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/hw_random.h>
#include <linux/delay.h>
#include <linux/hw_random.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
/* RNGA Registers */
#define RNGA_CONTROL 0x00
@ -197,10 +194,18 @@ static int __exit mxc_rnga_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id mxc_rnga_of_match[] = {
{ .compatible = "fsl,imx21-rnga", },
{ .compatible = "fsl,imx31-rnga", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, mxc_rnga_of_match);
static struct platform_driver mxc_rnga_driver = {
.driver = {
.name = "mxc_rnga",
},
.name = "mxc_rnga",
.of_match_table = mxc_rnga_of_match,
},
.remove = __exit_p(mxc_rnga_remove),
};