ARM: shmobile: genmai-reference: Enable MTU2 in device tree

No more device needs to be added from platform code when booting the
reference platform, move MTU2 registration from setup-r7s72100.c to
board-genmai.c and remove the now empty r7s72100_add_dt_devices()
function.

As the genmai_add_standard_devices() function is now identical to the
default init_machine implementation, remove it as well.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

5 files changed, 17 insertions, 43 deletions

diff --git a/arch/arm/boot/dts/r7s72100-genmai.dts b/arch/arm/boot/dts/r7s72100-genmai.dts
index 20705467f4c9..a3ed23c0a8f5 100644
--- a/arch/arm/boot/dts/r7s72100-genmai.dts
+++ b/arch/arm/boot/dts/r7s72100-genmai.dts
@@ -43,6 +43,10 @@
         clock-frequency = <48000000>;
 };
 
+&mtu2 {
+        status = "ok";
+};
+
 &i2c2 {
         status = "okay";
         clock-frequency = <400000>;
diff --git a/arch/arm/mach-shmobile/board-genmai-reference.c b/arch/arm/mach-shmobile/board-genmai-reference.c
index e5448f7b868a..bc52677986c3 100644
--- a/arch/arm/mach-shmobile/board-genmai-reference.c
+++ b/arch/arm/mach-shmobile/board-genmai-reference.c
@@ -19,29 +19,10 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/of_platform.h>
 
-#include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-#include "clock.h"
 #include "common.h"
-#include "r7s72100.h"
-
-/*
- * This is a really crude hack to provide clkdev support to platform
- * devices until they get moved to DT.
- */
-static const struct clk_name clk_names[] = {
-        { "mtu2", "fck", "sh-mtu2" },
-};
-
-static void __init genmai_add_standard_devices(void)
-{
-        shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), true);
-        r7s72100_add_dt_devices();
-        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
 
 static const char * const genmai_boards_compat_dt[] __initconst = {
         "renesas,genmai",
@@ -50,6 +31,5 @@ static const char * const genmai_boards_compat_dt[] __initconst = {
 
 DT_MACHINE_START(GENMAI_DT, "genmai")
         .init_early     = shmobile_init_delay,
-        .init_machine   = genmai_add_standard_devices,
         .dt_compat      = genmai_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-genmai.c b/arch/arm/mach-shmobile/board-genmai.c
index 7bf2d8057535..ba545fc09649 100644
--- a/arch/arm/mach-shmobile/board-genmai.c
+++ b/arch/arm/mach-shmobile/board-genmai.c
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/serial_sci.h>
 #include <linux/sh_eth.h>
+#include <linux/sh_timer.h>
 #include <linux/spi/rspi.h>
 #include <linux/spi/spi.h>
 
@@ -125,10 +126,21 @@ R7S72100_SCIF(7, 0xe800a800, gic_iid(249));
                                           &scif##index##_platform_data,        \
                                           sizeof(scif##index##_platform_data))
 
+static struct resource mtu2_resources[] __initdata = {
+        DEFINE_RES_MEM(0xfcff0000, 0x400),
+        DEFINE_RES_IRQ_NAMED(gic_iid(139), "tgi0a"),
+};
+
+#define r7s72100_register_mtu2()                                        \
+        platform_device_register_resndata(&platform_bus, "sh-mtu2",     \
+                                          -1, mtu2_resources,           \
+                                          ARRAY_SIZE(mtu2_resources),   \
+                                          NULL, 0)
+
 static void __init genmai_add_standard_devices(void)
 {
         r7s72100_clock_init();
-        r7s72100_add_dt_devices();
+        r7s72100_register_mtu2();
 
         platform_device_register_full(&ether_info);
 
diff --git a/arch/arm/mach-shmobile/r7s72100.h b/arch/arm/mach-shmobile/r7s72100.h
index efb723c88dd0..321ae4e10128 100644
--- a/arch/arm/mach-shmobile/r7s72100.h
+++ b/arch/arm/mach-shmobile/r7s72100.h
@@ -1,7 +1,6 @@
 #ifndef __ASM_R7S72100_H__
 #define __ASM_R7S72100_H__
 
-void r7s72100_add_dt_devices(void);
 void r7s72100_clock_init(void);
 
 #endif /* __ASM_R7S72100_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c
index f3b3b14ba972..d898cef24611 100644
--- a/arch/arm/mach-shmobile/setup-r7s72100.c
+++ b/arch/arm/mach-shmobile/setup-r7s72100.c
@@ -18,32 +18,11 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <linux/irq.h>
 #include <linux/kernel.h>
-#include <linux/of_platform.h>
-#include <linux/sh_timer.h>
 
 #include <asm/mach/arch.h>
 
 #include "common.h"
-#include "irqs.h"
-#include "r7s72100.h"
-
-static struct resource mtu2_resources[] __initdata = {
-        DEFINE_RES_MEM(0xfcff0000, 0x400),
-        DEFINE_RES_IRQ_NAMED(gic_iid(139), "tgi0a"),
-};
-
-#define r7s72100_register_mtu2()                                        \
-        platform_device_register_resndata(NULL, "sh-mtu2",              \
-                                          -1, mtu2_resources,           \
-                                          ARRAY_SIZE(mtu2_resources),   \
-                                          NULL, 0)
-
-void __init r7s72100_add_dt_devices(void)
-{
-        r7s72100_register_mtu2();
-}
 
 #ifdef CONFIG_USE_OF
 static const char *r7s72100_boards_compat_dt[] __initdata = {