ARM: OMAP: split OMAP1, OMAP2+ RNG device registration
Move the OMAP1-specific RNG device creation off to mach-omap1/devices.c,
and create a omap_device-backed registration function for OMAP2+ devices
in mach-omap2/devices.c.
As a nice side-benefit, we can also get rid of
arch/arm/plat-omap/devices.c, thanks to some recent changes from Tony.
One change from the previous behavior is that the RNG devices are now
registered unconditionally. This should allow the RNG drivers to be
loaded as modules, even if the original kernel was not built that way.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 6ef4010..33bdbe4 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -462,6 +462,23 @@
platform_device_register(&omap_pmu_device);
}
+/**
+ * omap_init_rng - bind the RNG hwmod to the RNG omap_device
+ *
+ * Bind the RNG hwmod to the RNG omap_device. No return value.
+ */
+static void omap_init_rng(void)
+{
+ struct omap_hwmod *oh;
+ struct platform_device *pdev;
+
+ oh = omap_hwmod_lookup("rng");
+ if (!oh)
+ return;
+
+ pdev = omap_device_build("omap_rng", -1, oh, NULL, 0, NULL, 0, 0);
+ WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
+}
#if defined(CONFIG_CRYPTO_DEV_OMAP_SHAM) || defined(CONFIG_CRYPTO_DEV_OMAP_SHAM_MODULE)
@@ -649,6 +666,7 @@
}
omap_init_pmu();
omap_init_sti();
+ omap_init_rng();
omap_init_sham();
omap_init_aes();
omap_init_vout();