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authorSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>2014-01-25 19:19:08 +0100
committerJason Cooper <jason@lakedaemon.net>2014-02-06 18:06:50 +0000
commit0a11a6ae94373f37e738f7dc8f51d60a78d78a58 (patch)
tree071c2f0e394865a0bc1ff75768775cef41d3dc59 /drivers/clk
parent07ad6836fa21b8ae1715d5f82a0d28c4140e1e73 (diff)
downloadlinux-0a11a6ae94373f37e738f7dc8f51d60a78d78a58.tar.bz2
clk: mvebu: armada-xp: maintain clock init order
Init order of CLK_OF_DECLARE'd drivers depends on compile order. Unfortunately, clk_of_init does not allow drivers to return errors, e.g. -EPROBE_DEFER if parent clocks have not been registered, yet. To avoid init order woes for MVEBU clock drivers, we take care of proper init order ourselves. This patch joins core-clk and gating-clk init to maintain proper init order. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/mvebu/armada-xp.c20
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/clk/mvebu/armada-xp.c b/drivers/clk/mvebu/armada-xp.c
index 9922c4475aa8..b3094315a3c0 100644
--- a/drivers/clk/mvebu/armada-xp.c
+++ b/drivers/clk/mvebu/armada-xp.c
@@ -158,13 +158,6 @@ static const struct coreclk_soc_desc axp_coreclks = {
.num_ratios = ARRAY_SIZE(axp_coreclk_ratios),
};
-static void __init axp_coreclk_init(struct device_node *np)
-{
- mvebu_coreclk_setup(np, &axp_coreclks);
-}
-CLK_OF_DECLARE(axp_core_clk, "marvell,armada-xp-core-clock",
- axp_coreclk_init);
-
/*
* Clock Gating Control
*/
@@ -202,9 +195,14 @@ static const struct clk_gating_soc_desc axp_gating_desc[] __initconst = {
{ }
};
-static void __init axp_clk_gating_init(struct device_node *np)
+static void __init axp_clk_init(struct device_node *np)
{
- mvebu_clk_gating_setup(np, axp_gating_desc);
+ struct device_node *cgnp =
+ of_find_compatible_node(NULL, NULL, "marvell,armada-xp-gating-clock");
+
+ mvebu_coreclk_setup(np, &axp_coreclks);
+
+ if (cgnp)
+ mvebu_clk_gating_setup(cgnp, axp_gating_desc);
}
-CLK_OF_DECLARE(axp_clk_gating, "marvell,armada-xp-gating-clock",
- axp_clk_gating_init);
+CLK_OF_DECLARE(axp_clk, "marvell,armada-xp-core-clock", axp_clk_init);