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path: root/drivers/clk/at91/sama5d4.c
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* clk: at91: fix possible deadlockAlexandre Belloni2019-12-161-1/+1
| | | | | | | | | | | | | | | | 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>
* clk: at91: Mark struct clk_range as constStephen Boyd2019-04-251-1/+1
| | | | | | | | 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>
* clk: at91: allow configuring peripheral PCR layoutAlexandre Belloni2019-04-251-0/+8
| | | | | | | | | | | The PCR register actually changed layout for each SoC. By chance, this didn't have impact on sama5d[2-4] support but since sama5d3, PID is seven bits wide and sama5d4 and sama5d2 don't have DIV. For the DT backward compatibility, keep the layout as is. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk: at91: fix masterck nameAlexandre Belloni2019-02-201-1/+1
| | | | | | | | | | | | | The master clock is actually named masterck earlier in the driver. Having "mck" in the parent list means that it can never be selected. Fixes: 1eabdc2f9dd8 ("clk: at91: add at91sam9x5 PMCs driver") Fixes: a2038077de9a ("clk: at91: add sama5d2 PMC driver") Fixes: 084b696bb509 ("clk: at91: add sama5d4 pmc driver") Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: <stable@vger.kernel.org> # v4.20+ Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk: at91: add sama5d4 pmc driverAlexandre Belloni2018-10-171-0/+264
Add a driver for the PMC clocks of the sama5d4 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>
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