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Commit 5bda6c0e authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Scott Wood
Browse files

powerpc/fsl_soc: improve and simplify fsl_get_sys_freq 



Use of_property_read_u32 instead of the generic of_get_property to
simplify the code. In addition move the declaration of sysfreq
into fsl_get_sys_freq because it's private to this function.

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarScott Wood <oss@buserror.net>
parent 00b6cfc4

arch/powerpc/sysdev/fsl_soc.c

+4 −10
Original line number Diff line number Diff line
@@ -77,13 +77,10 @@ phys_addr_t get_immrbase(void) 


EXPORT_SYMBOL(get_immrbase);



static u32 sysfreq = -1;



u32 fsl_get_sys_freq(void)

{

	static u32 sysfreq = -1;

	struct device_node *soc;

	const u32 *prop;

	int size;



	if (sysfreq != -1)

		return sysfreq;
@@ -92,12 +89,9 @@ u32 fsl_get_sys_freq(void) 
	if (!soc)

		return -1;



	prop = of_get_property(soc, "clock-frequency", &size);

	if (!prop || size != sizeof(*prop) || *prop == 0)

		prop = of_get_property(soc, "bus-frequency", &size);



	if (prop && size == sizeof(*prop))

		sysfreq = *prop;

	of_property_read_u32(soc, "clock-frequency", &sysfreq);

	if (sysfreq == -1 || !sysfreq)

		of_property_read_u32(soc, "bus-frequency", &sysfreq);



	of_node_put(soc);

	return sysfreq;