This patch splits omap_init_wdt() into separate omap_init_wdt()
functions under mach-omap1 and mach-omap2 and set them up with
subsys_initcall.
Also it uses omap_device_build() API instead of
platform_device_register() for watchdog timer device registration
for OMAP2plus chips.
For OMAP2plus chips, the device specific data defined in centralized
hwmod database will be used.
Signed-off-by: Charulatha V <charu@xxxxxx>
---
arch/arm/mach-omap1/devices.c | 27 +++++++++++++++++++++++++++
arch/arm/mach-omap2/devices.c | 39 +++++++++++++++++++++++++++++++++++++++
arch/arm/plat-omap/devices.c | 41 -----------------------------------------
3 files changed, 66 insertions(+), 41 deletions(-)
diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index aa07256..39447fa 100644
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -232,3 +232,30 @@ static int __init omap1_init_devices(void)
}
arch_initcall(omap1_init_devices);
+#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
+
+static struct resource wdt_resources[] = {
+ {
+ .start = 0xfffeb000,
+ .end = 0xfffeb07F,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device omap_wdt_device = {
+ .name = "omap_wdt",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(wdt_resources),
+ .resource = wdt_resources,
+};
+
+static int __init omap_init_wdt(void)
+{
+ if (!cpu_is_omap16xx())
+ return;
+
+ platform_device_register(&omap_wdt_device);
+ return 0;
+}
+subsys_initcall(omap_init_wdt);
+#endif
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 2dbb265..439bfb3 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -15,6 +15,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/clk.h>
+#include <linux/err.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
@@ -28,6 +29,8 @@
#include <mach/gpio.h>
#include <plat/mmc.h>
#include <plat/dma.h>
+#include <plat/omap_hwmod.h>
+#include <plat/omap_device.h>
#include "mux.h"
@@ -859,3 +862,39 @@ static int __init omap2_init_devices(void)
return 0;
}
arch_initcall(omap2_init_devices);
+
+#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
+struct omap_device_pm_latency omap_wdt_latency[] = {
+ [0] = {
+ .deactivate_func = omap_device_idle_hwmods,
+ .activate_func = omap_device_enable_hwmods,
+ .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
+ },
+};
+
+static int __init omap_init_wdt(void)
+{
+ int id = -1;
+ struct omap_device *od;
+ struct omap_hwmod *oh;
+ char *oh_name = "wd_timer2";
+ char *dev_name = "omap_wdt";
+
+ if (!cpu_class_is_omap2())
+ return 0;
+
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("Could not look up wd_timer%d hwmod\n", id);
+ return -EINVAL;
+ }
+
+ od = omap_device_build(dev_name, id, oh, NULL, 0,
+ omap_wdt_latency,
+ ARRAY_SIZE(omap_wdt_latency), 0);
+ WARN(IS_ERR(od), "Cant build omap_device for %s:%s.\n",
+ dev_name, oh->name);
+ return 0;
+}
+subsys_initcall(omap_init_wdt);
+#endif
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index d1920be..8e88e0e 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -232,46 +232,6 @@ static void omap_init_uwire(void)
static inline void omap_init_uwire(void) {}
#endif
-/*-------------------------------------------------------------------------*/
-
-#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
-
-static struct resource wdt_resources[] = {
- {
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device omap_wdt_device = {
- .name = "omap_wdt",
- .id = -1,
- .num_resources = ARRAY_SIZE(wdt_resources),
- .resource = wdt_resources,
-};
-
-static void omap_init_wdt(void)
-{
- if (cpu_is_omap16xx())
- wdt_resources[0].start = 0xfffeb000;
- else if (cpu_is_omap2420())
- wdt_resources[0].start = 0x48022000; /* WDT2 */
- else if (cpu_is_omap2430())
- wdt_resources[0].start = 0x49016000; /* WDT2 */
- else if (cpu_is_omap343x())
- wdt_resources[0].start = 0x48314000; /* WDT2 */
- else if (cpu_is_omap44xx())
- wdt_resources[0].start = 0x4a314000;
- else
- return;
-
- wdt_resources[0].end = wdt_resources[0].start + 0x4f;
-
- (void) platform_device_register(&omap_wdt_device);
-}
-#else
-static inline void omap_init_wdt(void) {}
-#endif
-
/*
* This gets called after board-specific INIT_MACHINE, and initializes most
* on-chip peripherals accessible on this board (except for few like USB):
@@ -300,7 +260,6 @@ static int __init omap_init_devices(void)
omap_init_rng();
omap_init_mcpdm();
omap_init_uwire();
- omap_init_wdt();
return 0;
}
arch_initcall(omap_init_devices);
--
1.7.0.4
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