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authorDavid Müller <dave.mueller@gmx.ch>2019-04-08 15:33:54 +0200
committerStephen Boyd <sboyd@kernel.org>2019-04-10 15:54:12 -0700
commit7c2e07130090ae001a97a6b65597830d6815e93e (patch)
tree49390d3305bda6d110ad8a71a871d36bc43192b3 /include
parent9f842abde84d4232d7a1951952dc148bd83f9ada (diff)
clk: x86: Add system specific quirk to mark clocks as critical
Since commit 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL"), the pmc_plt_clocks of the Bay Trail SoC are unconditionally gated off. Unfortunately this will break systems where these clocks are used for external purposes beyond the kernel's knowledge. Fix it by implementing a system specific quirk to mark the necessary pmc_plt_clks as critical. Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL") Signed-off-by: David Müller <dave.mueller@gmx.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/platform_data/x86/clk-pmc-atom.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/platform_data/x86/clk-pmc-atom.h b/include/linux/platform_data/x86/clk-pmc-atom.h
index 3ab892208343..7a37ac27d0fb 100644
--- a/include/linux/platform_data/x86/clk-pmc-atom.h
+++ b/include/linux/platform_data/x86/clk-pmc-atom.h
@@ -35,10 +35,13 @@ struct pmc_clk {
*
* @base: PMC clock register base offset
* @clks: pointer to set of registered clocks, typically 0..5
+ * @critical: flag to indicate if firmware enabled pmc_plt_clks
+ * should be marked as critial or not
*/
struct pmc_clk_data {
void __iomem *base;
const struct pmc_clk *clks;
+ bool critical;
};
#endif /* __PLATFORM_DATA_X86_CLK_PMC_ATOM_H */