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authorFeng Kan <fkan@apm.com>2015-03-07 01:53:15 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2015-03-09 13:06:19 +0300
commita508412b169d5398dc5f800147097b255c2941be (patch)
tree950919ff10993712d6d2d04142ef615009cc4468 /drivers/char
parent2ca87a17045194638c69be87e2430842f743b00b (diff)
downloadlinux-a508412b169d5398dc5f800147097b255c2941be.tar.xz
hwrng: xgene - add ACPI support for APM X-Gene RNG unit
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>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hw_random/xgene-rng.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/char/hw_random/xgene-rng.c b/drivers/char/hw_random/xgene-rng.c
index 23caa05380a8..c37cf754a985 100644
--- a/drivers/char/hw_random/xgene-rng.c
+++ b/drivers/char/hw_random/xgene-rng.c
@@ -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),
},
};