[PATCH v2 11/12] hwrng: bcm2835-rng: Enable BCM2835 RNG to work on BCM63xx platforms

[Florian Fainelli]

We have now incorporated all necessary functionality for the BCM63xx
platforms to successfully migrate over bcm2835-rng, so add the final
bits: Kconfig selection and proper platform_device device type matching
to keep the same platform device name for registration to work.

Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 drivers/char/hw_random/Kconfig       |  7 ++++---
 drivers/char/hw_random/bcm2835-rng.c | 11 ++++++++++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 95a031e9eced..d0689cc8c7fc 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -87,12 +87,13 @@ config HW_RANDOM_BCM63XX
          If unusure, say Y.
 
 config HW_RANDOM_BCM2835
-       tristate "Broadcom BCM2835 Random Number Generator support"
-       depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X
+       tristate "Broadcom BCM2835/BCM63xx Random Number Generator support"
+       depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X || \
+                  ARCH_BCM_63XX || BCM63XX || BMIPS_GENERIC
        default HW_RANDOM
        ---help---
          This driver provides kernel-side support for the Random Number
-         Generator hardware found on the Broadcom BCM2835 SoCs.
+         Generator hardware found on the Broadcom BCM2835 and BCM63xx SoCs.
 
          To compile this driver as a module, choose M here: the
          module will be called bcm2835-rng
diff --git a/drivers/char/hw_random/bcm2835-rng.c 
b/drivers/char/hw_random/bcm2835-rng.c
index 6dd8f48701b5..25e56311a197 100644
--- a/drivers/char/hw_random/bcm2835-rng.c
+++ b/drivers/char/hw_random/bcm2835-rng.c
@@ -134,6 +134,7 @@ static const struct of_device_id bcm2835_rng_of_match[] = {
        { .compatible = "brcm,bcm2835-rng"},
        { .compatible = "brcm,bcm-nsp-rng", .data = &nsp_rng_of_data },
        { .compatible = "brcm,bcm5301x-rng", .data = &nsp_rng_of_data },
+       { .compatible = "brcm,bcm6368-rng"},
        {},
 };
 
@@ -165,7 +166,7 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
        /* Clock is optional on most platforms */
        priv->clk = devm_clk_get(dev, NULL);
 
-       priv->rng.name = "bcm2835-rng";
+       priv->rng.name = pdev->name;
        priv->rng.init = bcm2835_rng_init;
        priv->rng.read = bcm2835_rng_read;
        priv->rng.cleanup = bcm2835_rng_cleanup;
@@ -191,12 +192,20 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
 
 MODULE_DEVICE_TABLE(of, bcm2835_rng_of_match);
 
+static struct platform_device_id bcm2835_rng_devtype[] = {
+       { .name = "bcm2835-rng" },
+       { .name = "bcm63xx-rng" },
+       { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, bcm2835_rng_devtype);
+
 static struct platform_driver bcm2835_rng_driver = {
        .driver = {
                .name = "bcm2835-rng",
                .of_match_table = bcm2835_rng_of_match,
        },
        .probe          = bcm2835_rng_probe,
+       .id_table       = bcm2835_rng_devtype,
 };
 module_platform_driver(bcm2835_rng_driver);
 
-- 
2.9.3