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3 Commits

Author SHA1 Message Date
Alexandre Belloni 6956eb33ab clk: at91: fix possible deadlock 
Lockdep warns about a possible circular locking dependency because using
syscon_node_to_regmap() will make the created regmap get and enable the
first clock it can parse from the device tree. This clock is not needed to
access the registers and should not be enabled at that time.

Use the recently introduced device_node_to_regmap to solve that as it looks
up the regmap in the same list but doesn't care about the clocks.

Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lkml.kernel.org/r/20191128102531.817549-1-alexandre.belloni@bootlin.com
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-12-16 09:56:18 -08:00
Stephen Boyd 7b4c162e03 clk: at91: Mark struct clk_range as const 
It's just some static data that doesn't get changed after being used.
Mark it const everywhere.

Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-25 14:16:26 -07:00
Alexandre Belloni c8923236a2 clk: at91: add at91sam9260 PMC driver 
Add a driver for the PMC clocks of the at91sam9260, at91sam9261,
at91am9263 and at91sam9g20 SoCs.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Make i signed to fix signedness bug]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-10-17 10:45:12 -07:00