[PATCH 09/13] fsl_soc: Factor fsl_get_bus_freq() out of the wdt init.
From: Scott Wood <hidden>
Date: 2007-05-07 18:29:59
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Signed-off-by: Scott Wood <redacted> --- arch/powerpc/sysdev/fsl_soc.c | 44 ++++++++++++++++++++++------------------ arch/powerpc/sysdev/fsl_soc.h | 1 + 2 files changed, 25 insertions(+), 20 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 8a123c7..3b99433 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c@@ -64,6 +64,27 @@ phys_addr_t get_immrbase(void) EXPORT_SYMBOL(get_immrbase); +u32 fsl_get_bus_freq(void) +{ + struct device_node *soc = of_find_node_by_type(NULL, "soc"); + const u32 *freq; + u32 ret = 0; + + if (!soc) + goto err; + + freq = of_get_property(soc, "bus-frequency", NULL); + if (!freq) + goto err; + + ret = *freq; + +err: + of_node_put(soc); + return ret; +} +EXPORT_SYMBOL(fsl_get_bus_freq); + #if defined(CONFIG_CPM2) || defined(CONFIG_8xx) static u32 brgfreq = -1;
@@ -356,9 +377,9 @@ arch_initcall(fsl_i2c_of_init); static int __init mpc83xx_wdt_init(void) { struct resource r; - struct device_node *soc, *np; + struct device_node *np; struct platform_device *dev; - const unsigned int *freq; + u32 freq = fsl_get_bus_freq(); int ret; np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
@@ -368,19 +389,6 @@ static int __init mpc83xx_wdt_init(void) goto nodev; } - soc = of_find_node_by_type(NULL, "soc"); - - if (!soc) { - ret = -ENODEV; - goto nosoc; - } - - freq = of_get_property(soc, "bus-frequency", NULL); - if (!freq) { - ret = -ENODEV; - goto err; - } - memset(&r, 0, sizeof(r)); ret = of_address_to_resource(np, 0, &r);
@@ -393,20 +401,16 @@ static int __init mpc83xx_wdt_init(void) goto err; } - ret = platform_device_add_data(dev, freq, sizeof(int)); + ret = platform_device_add_data(dev, &freq, sizeof(int)); if (ret) goto unreg; - of_node_put(soc); of_node_put(np); - return 0; unreg: platform_device_unregister(dev); err: - of_node_put(soc); -nosoc: of_node_put(np); nodev: return ret;
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index 04e145b..7a9502d 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h@@ -7,6 +7,7 @@ extern phys_addr_t get_immrbase(void); extern u32 get_brgfreq(void); extern u32 get_baudrate(void); +extern u32 fsl_get_bus_freq(void); #endif #endif
--
1.5.0.3