Jerome Brunet 36bf6129eb UPSTREAM: clk: add api to get clk consumer from clk_hw ...

clk_register() is deprecated. Using 'clk' member of struct clk_hw is
discouraged. With this constraint, it is difficult for driver to
register clocks using the clk_hw API and then use the clock with
the consumer API

This adds a simple helper, clk_hw_get_clk(), to get a struct clk from
a struct clk_hw. Like other clk_get() variant, each call to this helper
must be balanced with a call to clk_put(). To make life easier on the
consumers, a memory managed version is provided as well.

Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20201021162147.563655-3-jbrunet@baylibre.com
Tested-by: Kevin Hilman <khilman@baylibre.com>
[sboyd@kernel.org: Fix kernel-doc]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
(cherry picked from commit 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2)
Change-Id: Ia092e7f994e5031c1785d906211f5fb2ad89c14e
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

2021-02-11 12:29:55 +00:00

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