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| author |   Pawel Moll <pawel.moll@arm.com> | 2013-04-18 18:23:22 +0100 |
|---|---|---|
| committer |   Mike Turquette <mturquette@linaro.org> | 2013-04-18 11:41:10 -0700 |
| commit | 6e973d2c438502dcf956e76305258ba7d1c7d1d3 (patch) | |
| tree | e9b85815c35794b1b3a219e4ae755bfca2319f4a /arch/arm/mach-vexpress | |
| parent | clk: si5351: make clk-si5351 depend on CONFIG_OF (diff) | |
| download | linux-dev-6e973d2c438502dcf956e76305258ba7d1c7d1d3.tar.xz linux-dev-6e973d2c438502dcf956e76305258ba7d1c7d1d3.zip | |
clk: vexpress: Add separate SP810 driver
Factor out the SP810 clocking code into a separate driver,
selecting better (faster) parent at clk_prepare() time.
This is to avoid problems with clocking infrastructure
initialisation order, in particular to avoid dependency
of fixed clock being initialized before SP810. It also
makes vexpress platform OF-based clock initialisation code
unnecessary.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: add .unprepare, FIXME comment, cleaned up code]
Diffstat (limited to 'arch/arm/mach-vexpress')
| -rw-r--r-- | arch/arm/mach-vexpress/v2m.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 915683cb67d6..c5e20b52e3b7 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -21,6 +21,8 @@ #include <linux/regulator/fixed.h> #include <linux/regulator/machine.h> #include <linux/vexpress.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> #include <asm/arch_timer.h> #include <asm/mach-types.h> @@ -433,7 +435,7 @@ static void __init v2m_dt_timer_init(void) { struct device_node *node = NULL; - vexpress_clk_of_init(); + of_clk_init(NULL); do { node = of_find_compatible_node(node, NULL, "arm,sp804"); @@ -441,6 +443,10 @@ static void __init v2m_dt_timer_init(void) if (node) { pr_info("Using SP804 '%s' as a clock & events source\n", node->full_name); + WARN_ON(clk_register_clkdev(of_clk_get_by_name(node, + "timclken1"), "v2m-timer0", "sp804")); + WARN_ON(clk_register_clkdev(of_clk_get_by_name(node, + "timclken2"), "v2m-timer1", "sp804")); v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0)); } |