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clk: ti: clkctrl: add support for retrying failed init 

In case the clkctrl node contains assigned-clock-* entries, registering
the provider can fail with -EPROBE_DEFER. In this case, add the
provider to the retry_init clock list so it will be cleaned up later.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
hifive-unleashed-5.1
Tero Kristo 2017-10-12 10:55:29 +03:00
parent ffb009b243
commit 729e13bf58
1 changed files with 11 additions and 1 deletions
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12
drivers/clk/ti/clkctrl.c
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@ -414,6 +414,12 @@ _ti_clkctrl_setup_subclks(struct omap_clkctrl_provider *provider,
}
}
static void __init _clkctrl_add_provider(void *data,
struct device_node *np)
{
of_clk_add_hw_provider(np, _ti_omap4_clkctrl_xlate, data);
}
static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
{
struct omap_clkctrl_provider *provider;
@ -425,6 +431,7 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
struct omap_clkctrl_clk *clkctrl_clk;
const __be32 *addrp;
u32 addr;
int ret;
addrp = of_get_address(node, 0, NULL, NULL);
addr = (u32)of_translate_address(node, addrp);
@ -519,7 +526,10 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
reg_data++;
}
of_clk_add_hw_provider(node, _ti_omap4_clkctrl_xlate, provider);
ret = of_clk_add_hw_provider(node, _ti_omap4_clkctrl_xlate, provider);
if (ret == -EPROBE_DEFER)
ti_clk_retry_init(node, provider, _clkctrl_add_provider);
return;
cleanup: