From 5fedd0afd661cf2d387a6eb1b0df78ddbc0c9086 Mon Sep 17 00:00:00 2001 From: Ian Molton Date: Fri, 25 Jul 2008 12:02:31 +0100 Subject: [ARM] clocklib: Allow dynamic alias creation This patch allows dynamic creation of clock aliases in order to make it possible to have platform independent clock names for use in device drivers. Signed-off-by: Ian Molton --- arch/arm/mach-pxa/clock.c | 25 +++++++++++++++++++++++++ arch/arm/mach-pxa/clock.h | 5 +++++ 2 files changed, 30 insertions(+) (limited to 'arch/arm/mach-pxa') diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c index c01eea88f78..ca8e2053815 100644 --- a/arch/arm/mach-pxa/clock.c +++ b/arch/arm/mach-pxa/clock.c @@ -125,3 +125,28 @@ void clks_register(struct clk *clks, size_t num) list_add(&clks[i].node, &clocks); mutex_unlock(&clocks_mutex); } + +int clk_add_alias(char *alias, struct device *alias_dev, char *id, + struct device *dev) +{ + struct clk *r = clk_lookup(dev, id); + struct clk *new; + + if (!r) + return -ENODEV; + + new = kzalloc(sizeof(struct clk), GFP_KERNEL); + + if (!new) + return -ENOMEM; + + new->name = alias; + new->dev = alias_dev; + new->other = r; + + mutex_lock(&clocks_mutex); + list_add(&new->node, &clocks); + mutex_unlock(&clocks_mutex); + + return 0; +} diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h index 1ec8f9178aa..73be795fe3b 100644 --- a/arch/arm/mach-pxa/clock.h +++ b/arch/arm/mach-pxa/clock.h @@ -1,3 +1,5 @@ +#include + struct clk; struct clkops { @@ -86,3 +88,6 @@ extern void clk_pxa3xx_cken_disable(struct clk *); #endif void clks_register(struct clk *clks, size_t num); +int clk_add_alias(char *alias, struct device *alias_dev, char *id, + struct device *dev); + -- cgit v1.2.3