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

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

Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Feng Kan 2015-03-06 14:53:15 -08:00 committed by Herbert Xu
parent 2ca87a1704
commit a508412b16
1 changed files with 10 additions and 0 deletions
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10
drivers/char/hw_random/xgene-rng.c
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@ -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),
},
};