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path: root/drivers/clk/at91/at91sam9260.c
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* clk: at91: clk-programmable: add mux_table optionClaudiu Beznea2020-07-241-1/+2
| | | | | | | | | Add mux table option. This is necessary for IP versions that has gaps in the range of available clock sources (e.g. SAMA7G5). Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/1595403506-8209-15-git-send-email-claudiu.beznea@microchip.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk: at91: allow setting all PMC clock parents via DTMichał Mirosław2020-05-261-1/+5
| | | | | | | | | | | We need to have clocks accessible via phandle to select them as peripheral clock parent using assigned-clock-parents in DT. Add support for PLLACK/PLLBCK/AUDIOPLLCK clocks where available. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lkml.kernel.org/r/fa39cc10dab8341ea4bc2b7152be9217b2cd34a5.1588630999.git.mirq-linux@rere.qmqm.pl Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk: at91: allow setting PCKx parent via DTMichał Mirosław2020-05-261-1/+4
| | | | | | | | | | This exposes PROGx clocks for use in assigned-clocks DeviceTree property for selecting PCKx parent clock. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lkml.kernel.org/r/0054532c00163ddf405dad658b32f0d7d97fcc8e.1588630999.git.mirq-linux@rere.qmqm.pl Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk: at91: optimize pmc data allocationMichał Mirosław2020-05-261-1/+1
| | | | | | | | | | Alloc whole data structure in one block. This makes the code shorter, more efficient and easier to extend in following patch. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lkml.kernel.org/r/fc6f6d67b8cee0beace4a9d9cca7431e5efa769d.1588630999.git.mirq-linux@rere.qmqm.pl Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* 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 Boyd2019-04-251-7/+7
| | | | | | | | 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: add at91sam9260 PMC driverAlexandre Belloni2018-10-171-0/+494
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>