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Commit a508412b authored by Feng Kan's avatar Feng Kan Committed by Herbert Xu
Browse files

hwrng: xgene - add ACPI support for APM X-Gene RNG unit 



This adds ACPI support for APM X-Gene RNG unit.

Signed-off-by: default avatarFeng Kan <fkan@apm.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 2ca87a17

drivers/char/hw_random/xgene-rng.c

+10 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
 *

 */



#include <linux/acpi.h>

#include <linux/clk.h>

#include <linux/delay.h>

#include <linux/hw_random.h>
@@ -310,6 +311,14 @@ static int xgene_rng_init(struct hwrng *rng) 
	return 0;

}



#ifdef CONFIG_ACPI

static const struct acpi_device_id xgene_rng_acpi_match[] = {

	{ "APMC0D18", },

	{ }

};

MODULE_DEVICE_TABLE(acpi, xgene_rng_acpi_match);

#endif



static struct hwrng xgene_rng_func = {

	.name		= "xgene-rng",

	.init		= xgene_rng_init,
@@ -415,6 +424,7 @@ static struct platform_driver xgene_rng_driver = { 
	.driver = {

		.name		= "xgene-rng",

		.of_match_table = xgene_rng_of_match,

		.acpi_match_table = ACPI_PTR(xgene_rng_acpi_match),

	},

};