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path: root/drivers/clk/renesas/clk-div6.c
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2018-03-21clk: renesas: div6: Always use readl()/writel()Geert Uytterhoeven1-11/+11
On arm32/arm64, there is no reason to use the (soon deprecated) clk_readl()/clk_writel(). Hence use the generic readl()/writel() instead. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2017-10-20clk: renesas: div6: Restore clock state during resumeGeert Uytterhoeven1-2/+36
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing clock configuration. Register an (optional) notifier to restore the DIV6 clock state during system resume. As DIV6 clocks can be picky w.r.t. modifying multiple register fields at once, restore is not implemented by blindly restoring the register value, but by using the existing cpg_div6_clock_{en,dis}able() helpers. Note that this does not yet support DIV6 clocks with multiple parents, which do not exist on R-Car Gen3 SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-07-17clk: renesas: div6: Document fields used for parent selectionGeert Uytterhoeven1-0/+3
Add the missing documentation for the fields in struct div6_clock related to parent selection for DIV6 clocks with selectable parents, as found in R/SH-Mobile SoCs. Fixes: c6d67fb037f4eaaf ("clk: shmobile: div6: support selectable-input clocks") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-03-03clk: renesas: move drivers to renesas directorySimon Horman1-0/+318
This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Along with the above mentioned Kconfig changes it seems appropriate to also rename directories that only hold drivers for such SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>