Commit Graph

5 Commits

Author SHA1 Message Date
Maxime Ripard e2533dad2f clk: lan966x: Remove unused round_rate hook
The lan966x driver registers a gck clock with both a determine_rate and
a round_rate implementation. Both are equivalent, and are only called by
clk_core_determine_round_nolock() which favors determine_rate.

Thus, lan966x_gck_round_rate() is never called, so we can just remove
it.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-5-971d5077e7d2@cerno.tech
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-06-08 18:39:25 -07:00
Clément Léger 8a977bbb17 clk: allow building lan966x as a module
Set the COMMON_CLK_LAN966X option as a tristate and switch from
builtin_platform_driver() to module_platform_driver() to allow building
and using this driver as a module.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Link: https://lore.kernel.org/r/20220617103306.489466-1-clement.leger@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-10-03 14:14:02 -07:00
Herve Codina 25c2a075eb clk: lan966x: Fix the lan966x clock gate register address
The register address used for the clock gate register is the base
register address coming from first reg map (ie. the generic
clock registers) instead of the second reg map defining the clock
gate register.

Use the correct clock gate register address.

Fixes: 5ad5915dea ("clk: lan966x: Extend lan966x clock driver for clock gating support")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20220704102845.168438-2-herve.codina@bootlin.com
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-07-19 00:04:10 -07:00
Horatiu Vultur 5ad5915dea clk: lan966x: Extend lan966x clock driver for clock gating support
Extend the clock driver to add support also for clock gating. The
following peripherals can be gated: UHPHS, UDPHS, MCRAMC, HMATRIX.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20211103085102.1656081-5-horatiu.vultur@microchip.com
2021-12-08 11:19:20 +01:00
Kavyasree Kotagiri 54104ee023 clk: lan966x: Add lan966x SoC clock driver
This adds Generic Clock Controller driver for lan966x SoC.

Lan966x clock controller contains 3 PLLs - cpu_clk, ddr_clk
and sys_clk. It generates and supplies clock to various
peripherals within SoC.
Register settings required to provide GCK clocking to a
peripheral is as below:
GCK_SRC_SEL     = Select clock source.
GCK_PRESCALER   = Set divider value.
GCK_ENA         = 1 - Enable GCK clock.

Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com>
Co-developed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20211103061935.25677-4-kavyasree.kotagiri@microchip.com
2021-12-08 10:57:26 +01:00