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authorStephen Boyd <sboyd@kernel.org>2018-12-04 20:14:02 +0100
committerStephen Boyd <sboyd@kernel.org>2019-01-24 20:36:25 +0100
commita30a67be7b6e1117e0c0f5bcf84328ccdb8d6205 (patch)
treef84a9faa9a49535a76188591580741d4860ce9f9 /.get_maintainer.ignore
parentLinux 4.20-rc1 (diff)
downloadlinux-a30a67be7b6e1117e0c0f5bcf84328ccdb8d6205.tar.xz
linux-a30a67be7b6e1117e0c0f5bcf84328ccdb8d6205.zip
clk: socfpga: Don't have get_parent for single parent ops
This driver creates a gate clk with the possibility to have multiple parents. That can cause problems if the common clk framework tries to call the get_parent() op and gets back a number that's larger than the number of parents the clk says it supports in clk_init_data::num_parents. Let's duplicate the clk_ops structure each time this function is called and drop the get/set parent ops when there is only one parent. This allows the framework to consider a number larger than clk_init_data::num_parents as an error condition of the get_parent() clk op, clearing the way for proper code. Cc: Jerome Brunet <jbrunet@baylibre.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: Dinh Nguyen <dinguyen@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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