diff options
author | Stephen Boyd <sboyd@codeaurora.org> | 2016-04-20 11:44:03 -0700 |
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committer | Stephen Boyd <sboyd@codeaurora.org> | 2016-04-20 11:44:03 -0700 |
commit | bb4399b8a5d7d9a8bf9d28b1e78badff1b0e5a5e (patch) | |
tree | e9cf480400d3520a71dee0374f49f39901549f2d /drivers/clk | |
parent | 0f05db651dc50c2a6f45794de2567fbf64a4df75 (diff) | |
parent | 2066390ad47b374f3d35075a32325b47d15bf735 (diff) | |
download | linux-bb4399b8a5d7d9a8bf9d28b1e78badff1b0e5a5e.tar.bz2 |
Merge tag 'clk-renesas-for-v4.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
clk: renesas: R-Car SYSC PM Domain Preparation
- Export the CPG/MSSR and CPG/MSTP attach/detach_dev callbacks, so
they can be called by the R-Car SYSC PM Domain driver.
* tag 'clk-renesas-for-v4.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: cpg-mssr: Export cpg_mssr_{at,de}tach_dev()
clk: renesas: mstp: Provide dummy attach/detach_dev callbacks
clk: renesas: Provide Kconfig symbols for CPG/MSSR and CPG/MSTP support
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/Kconfig | 1 | ||||
-rw-r--r-- | drivers/clk/renesas/Kconfig | 16 | ||||
-rw-r--r-- | drivers/clk/renesas/Makefile | 26 | ||||
-rw-r--r-- | drivers/clk/renesas/renesas-cpg-mssr.c | 18 |
4 files changed, 43 insertions, 18 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 16f7d33421d8..c45554957499 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -201,6 +201,7 @@ source "drivers/clk/bcm/Kconfig" source "drivers/clk/hisilicon/Kconfig" source "drivers/clk/mvebu/Kconfig" source "drivers/clk/qcom/Kconfig" +source "drivers/clk/renesas/Kconfig" source "drivers/clk/samsung/Kconfig" source "drivers/clk/tegra/Kconfig" source "drivers/clk/ti/Kconfig" diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig new file mode 100644 index 000000000000..2115ce410cfb --- /dev/null +++ b/drivers/clk/renesas/Kconfig @@ -0,0 +1,16 @@ +config CLK_RENESAS_CPG_MSSR + bool + default y if ARCH_R8A7795 + +config CLK_RENESAS_CPG_MSTP + bool + default y if ARCH_R7S72100 + default y if ARCH_R8A73A4 + default y if ARCH_R8A7740 + default y if ARCH_R8A7778 + default y if ARCH_R8A7779 + default y if ARCH_R8A7790 + default y if ARCH_R8A7791 + default y if ARCH_R8A7793 + default y if ARCH_R8A7794 + default y if ARCH_SH73A0 diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index 7e2579b30326..ead8bb843524 100644 --- a/drivers/clk/renesas/Makefile +++ b/drivers/clk/renesas/Makefile @@ -1,13 +1,15 @@ obj-$(CONFIG_ARCH_EMEV2) += clk-emev2.o -obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o clk-mstp.o -obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o clk-mstp.o clk-div6.o -obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o clk-mstp.o clk-div6.o -obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o clk-mstp.o -obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o clk-mstp.o -obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o clk-mstp.o clk-div6.o -obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o clk-mstp.o clk-div6.o -obj-$(CONFIG_ARCH_R8A7793) += clk-rcar-gen2.o clk-mstp.o clk-div6.o -obj-$(CONFIG_ARCH_R8A7794) += clk-rcar-gen2.o clk-mstp.o clk-div6.o -obj-$(CONFIG_ARCH_R8A7795) += renesas-cpg-mssr.o \ - r8a7795-cpg-mssr.o clk-div6.o -obj-$(CONFIG_ARCH_SH73A0) += clk-sh73a0.o clk-mstp.o clk-div6.o +obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o +obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o clk-div6.o +obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o clk-div6.o +obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o +obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o +obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o clk-div6.o +obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o clk-div6.o +obj-$(CONFIG_ARCH_R8A7793) += clk-rcar-gen2.o clk-div6.o +obj-$(CONFIG_ARCH_R8A7794) += clk-rcar-gen2.o clk-div6.o +obj-$(CONFIG_ARCH_R8A7795) += r8a7795-cpg-mssr.o +obj-$(CONFIG_ARCH_SH73A0) += clk-sh73a0.o clk-div6.o + +obj-$(CONFIG_CLK_RENESAS_CPG_MSSR) += renesas-cpg-mssr.o clk-div6.o +obj-$(CONFIG_CLK_RENESAS_CPG_MSTP) += clk-mstp.o diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index 703bdb157528..1f2dc3629f0e 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -15,6 +15,7 @@ #include <linux/clk.h> #include <linux/clk-provider.h> +#include <linux/clk/renesas.h> #include <linux/device.h> #include <linux/init.h> #include <linux/mod_devicetable.h> @@ -388,6 +389,8 @@ struct cpg_mssr_clk_domain { unsigned int core_pm_clks[0]; }; +static struct cpg_mssr_clk_domain *cpg_mssr_clk_domain; + static bool cpg_mssr_is_pm_clk(const struct of_phandle_args *clkspec, struct cpg_mssr_clk_domain *pd) { @@ -411,17 +414,20 @@ static bool cpg_mssr_is_pm_clk(const struct of_phandle_args *clkspec, } } -static int cpg_mssr_attach_dev(struct generic_pm_domain *genpd, - struct device *dev) +int cpg_mssr_attach_dev(struct generic_pm_domain *unused, struct device *dev) { - struct cpg_mssr_clk_domain *pd = - container_of(genpd, struct cpg_mssr_clk_domain, genpd); + struct cpg_mssr_clk_domain *pd = cpg_mssr_clk_domain; struct device_node *np = dev->of_node; struct of_phandle_args clkspec; struct clk *clk; int i = 0; int error; + if (!pd) { + dev_dbg(dev, "CPG/MSSR clock domain not yet available\n"); + return -EPROBE_DEFER; + } + while (!of_parse_phandle_with_args(np, "clocks", "#clock-cells", i, &clkspec)) { if (cpg_mssr_is_pm_clk(&clkspec, pd)) @@ -461,8 +467,7 @@ fail_put: return error; } -static void cpg_mssr_detach_dev(struct generic_pm_domain *genpd, - struct device *dev) +void cpg_mssr_detach_dev(struct generic_pm_domain *unused, struct device *dev) { if (!list_empty(&dev->power.subsys_data->clock_list)) pm_clk_destroy(dev); @@ -491,6 +496,7 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev, pm_genpd_init(genpd, &simple_qos_governor, false); genpd->attach_dev = cpg_mssr_attach_dev; genpd->detach_dev = cpg_mssr_detach_dev; + cpg_mssr_clk_domain = pd; of_genpd_add_provider_simple(np, genpd); return 0; |