sh: heartbeat consolidation for banked LEDs.

This consolidates the various board heartbeat LED implementations,
used for strobing the load average across a LED bank. Those boards
not implementing a full bank can hook in via the LED class.

We leave the compat hook in the machvec for now until those non-banked
boards are able to migrate to the drivers/leds.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

3 files changed, 27 insertions, 59 deletions

diff --git a/arch/sh/boards/se/73180/Makefile b/arch/sh/boards/se/73180/Makefile
index 8f63886a0f3f..e7c09967c529 100644
--- a/arch/sh/boards/se/73180/Makefile
+++ b/arch/sh/boards/se/73180/Makefile
@@ -3,5 +3,3 @@
 #
 
 obj-y    := setup.o io.o irq.o
-
-obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/se/73180/led.c b/arch/sh/boards/se/73180/led.c
deleted file mode 100644
index 4b72e9a3ead9..000000000000
--- a/arch/sh/boards/se/73180/led.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * arch/sh/boards/se/73180/led.c
- *
- * Derived from arch/sh/boards/se/770x/led.c
- *
- * Copyright (C) 2000 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.
- *
- * This file contains Solution Engine specific LED code.
- */
-
-#include <linux/sched.h>
-#include <asm/mach/se73180.h>
-
-/* Cycle the LED's in the clasic Knightrider/Sun pattern */
-void heartbeat_73180se(void)
-{
-        static unsigned int cnt = 0, period = 0;
-        volatile unsigned short *p = (volatile unsigned short *) PA_LED;
-        static unsigned bit = 0, up = 1;
-
-        cnt += 1;
-        if (cnt < period) {
-                return;
-        }
-
-        cnt = 0;
-
-        /* Go through the points (roughly!):
-         * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
-         */
-        period = 110 - ((300 << FSHIFT) / ((avenrun[0] / 5) + (3 << FSHIFT)));
-
-        if (up) {
-                if (bit == 7) {
-                        bit--;
-                        up = 0;
-                } else {
-                        bit++;
-                }
-        } else {
-                if (bit == 0) {
-                        bit++;
-                        up = 1;
-                } else {
-                        bit--;
-                }
-        }
-        *p = 1 << (bit + LED_SHIFT);
-
-}
diff --git a/arch/sh/boards/se/73180/setup.c b/arch/sh/boards/se/73180/setup.c
index b38ef50a160a..911ce1cdbd7f 100644
--- a/arch/sh/boards/se/73180/setup.c
+++ b/arch/sh/boards/se/73180/setup.c
@@ -10,13 +10,39 @@
  */
 
 #include <linux/init.h>
+#include <linux/platform_device.h>
 #include <asm/machvec.h>
 #include <asm/se73180.h>
 #include <asm/irq.h>
 
-void heartbeat_73180se(void);
 void init_73180se_IRQ(void);
 
+static struct resource heartbeat_resources[] = {
+        [0] = {
+                .start  = PA_LED,
+                .end    = PA_LED + 8 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device heartbeat_device = {
+        .name           = "heartbeat",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(heartbeat_resources),
+        .resource       = heartbeat_resources,
+};
+
+static struct platform_device *se73180_devices[] __initdata = {
+        &heartbeat_device,
+};
+
+static int __init se73180_devices_setup(void)
+{
+        return platform_add_devices(sh7343se_platform_devices,
+                                    ARRAY_SIZE(sh7343se_platform_devices));
+}
+__initcall(se73180_devices_setup);
+
 /*
  * The Machine Vector
  */
@@ -46,8 +72,5 @@ struct sh_machine_vector mv_73180se __initmv = {
 
         .mv_init_irq = init_73180se_IRQ,
         .mv_irq_demux = shmse_irq_demux,
-#ifdef CONFIG_HEARTBEAT
-        .mv_heartbeat = heartbeat_73180se,
-#endif
 };
 ALIAS_MV(73180se)