From 89d079dc17e8a32397de827cc85c1f4911b90424 Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Tue, 24 Sep 2019 14:39:53 +0200 Subject: clk: let init callback return an error code If the init callback is allowed to request resources, it needs a return value to report the outcome of such a request. Signed-off-by: Jerome Brunet Link: https://lkml.kernel.org/r/20190924123954.31561-3-jbrunet@baylibre.com Reviewed-by: Andrew Lunn Acked-by: Heiko Stuebner Signed-off-by: Stephen Boyd --- include/linux/clk-provider.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index caf4b9df16eb..eed243c2c73e 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -190,8 +190,12 @@ struct clk_duty { * * @init: Perform platform-specific initialization magic. * This is not not used by any of the basic clock types. - * Please consider other ways of solving initialization problems - * before using this callback, as its use is discouraged. + * This callback exist for HW which needs to perform some + * initialisation magic for CCF to get an accurate view of the + * clock. It may also be used dynamic resource allocation is + * required. It shall not used to deal with clock parameters, + * such as rate or parents. + * Returns 0 on success, -EERROR otherwise. * * @debug_init: Set up type-specific debugfs entries for this clock. This * is called once, after the debugfs directory entry for this @@ -243,7 +247,7 @@ struct clk_ops { struct clk_duty *duty); int (*set_duty_cycle)(struct clk_hw *hw, struct clk_duty *duty); - void (*init)(struct clk_hw *hw); + int (*init)(struct clk_hw *hw); void (*debug_init)(struct clk_hw *hw, struct dentry *dentry); }; -- cgit v1.2.3