ARM: i.MX31: remove rnga registration as a platform device

On i.MX31 powered boards with OF support Security Random Number
Generator Accelerator RNGA controller is initialized from device tree,
its registration as a platform device is redundant and actually it is
broken due to missing clock information:

  mxc_rnga mxc_rnga: Could not get rng_clk!
  mxc_rnga: probe of mxc_rnga failed with error -2

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/mach-imx/imx31-dt.c b/arch/arm/mach-imx/imx31-dt.c
index 668d74b..9d9640a 100644 (file)
--- a/arch/arm/mach-imx/imx31-dt.c
+++ b/arch/arm/mach-imx/imx31-dt.c
@@ -9,35 +9,17 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-#include <linux/irq.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
 #include <asm/mach/arch.h>
-#include <asm/mach/time.h>
-
 #include "common.h"
-#include "mx31.h"
 
 static const char * const imx31_dt_board_compat[] __initconst = {
        "fsl,imx31",
        NULL
 };
 
-/* FIXME: replace with DT binding */
-static const struct resource imx31_rnga_res[] __initconst = {
-       DEFINE_RES_MEM(MX31_RNGA_BASE_ADDR, SZ_16K),
-};
-
-static void __init imx31_dt_mach_init(void)
-{
-       platform_device_register_simple("mxc_rnga", -1, imx31_rnga_res,
-                                       ARRAY_SIZE(imx31_rnga_res));
-}
-
 DT_MACHINE_START(IMX31_DT, "Freescale i.MX31 (Device Tree Support)")
        .map_io         = mx31_map_io,
        .init_early     = imx31_init_early,
        .init_irq       = mx31_init_irq,
-       .init_machine   = imx31_dt_mach_init,
        .dt_compat      = imx31_dt_board_compat,
 MACHINE_END