renegade-project/linux-next
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9f8c71e513
linux-next/drivers/clk/renesas
History
Geert Uytterhoeven 9f8c71e513 clk: renesas: div6: Restore clock state during resume 
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>
2017-10-20 11:15:37 +02:00
..
clk-div6.c clk: renesas: div6: Restore clock state during resume 2017-10-20 11:15:37 +02:00
clk-div6.h clk: renesas: div6: Restore clock state during resume 2017-10-20 11:15:37 +02:00
clk-emev2.c
clk-mstp.c clk: renesas: mstp: Delete error messages for failed memory allocations 2017-09-28 17:57:34 +02:00
clk-r8a73a4.c
clk-r8a7740.c
clk-r8a7778.c clk: renesas: r8a7778: Remove obsolete r8a7778_clocks_init() 2016-11-02 20:44:14 +01:00
clk-r8a7779.c clk: renesas: r8a7779: Remove obsolete r8a7779_clocks_init() 2016-11-02 20:44:17 +01:00
clk-rcar-gen2.c clk: renesas: rcar-gen2: Delete error message for failed memory allocation 2017-09-28 17:57:34 +02:00
clk-rz.c clk: renesas: rz: clk-rz is meant for RZ/A1 2017-10-20 10:59:54 +02:00
clk-sh73a0.c
Kconfig clk: renesas: cpg-mssr: Add R8A77970 support 2017-09-19 10:57:35 +02:00
Makefile clk: renesas: cpg-mssr: Add R8A77970 support 2017-09-19 10:57:35 +02:00
r8a7743-cpg-mssr.c clk: renesas: cpg-mssr: Add R8A7743 support 2016-11-10 15:29:28 +01:00
r8a7745-cpg-mssr.c clk: renesas: cpg-mssr: Add du1 clock to R8A7745 2017-10-20 11:00:02 +02:00
r8a7790-cpg-mssr.c clk: renesas: r8a7790: Add new CPG/MSSR driver 2017-05-24 10:19:56 +02:00
r8a7791-cpg-mssr.c clk: renesas: r8a7791/r8a7793: Add new CPG/MSSR driver 2017-05-24 10:19:59 +02:00
r8a7792-cpg-mssr.c clk: renesas: r8a7792: Add IMR-LX3/LSX3 clocks 2017-07-17 10:26:48 +02:00
r8a7794-cpg-mssr.c clk: renesas: r8a7794: Add new CPG/MSSR driver 2017-05-24 10:20:03 +02:00
r8a7795-cpg-mssr.c clk: renesas: r8a7795: Correct parent clock of INTC-AP 2017-10-16 09:38:38 +02:00
r8a7796-cpg-mssr.c clk: renesas: r8a7796: Correct parent clock of INTC-AP 2017-10-16 09:38:38 +02:00
r8a77970-cpg-mssr.c clk: renesas: cpg-mssr: Add R8A77970 support 2017-09-19 10:57:35 +02:00
r8a77995-cpg-mssr.c clk: renesas: r8a77995: Correct parent clock of INTC-AP 2017-10-16 09:38:39 +02:00
rcar-gen2-cpg.c clk: renesas: cpg-mssr: Add support to restore core clocks during resume 2017-10-20 11:15:33 +02:00
rcar-gen2-cpg.h clk: renesas: cpg-mssr: Add support to restore core clocks during resume 2017-10-20 11:15:33 +02:00
rcar-gen3-cpg.c clk: renesas: cpg-mssr: Add support to restore core clocks during resume 2017-10-20 11:15:33 +02:00
rcar-gen3-cpg.h clk: renesas: cpg-mssr: Add support to restore core clocks during resume 2017-10-20 11:15:33 +02:00
rcar-usb2-clock-sel.c clk: renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY 2017-08-17 09:22:23 +02:00
renesas-cpg-mssr.c clk: renesas: div6: Restore clock state during resume 2017-10-20 11:15:37 +02:00
renesas-cpg-mssr.h clk: renesas: cpg-mssr: Add support to restore core clocks during resume 2017-10-20 11:15:33 +02:00