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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-06 22:44:09 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-06 22:44:09 +0400 |
| commit | 75bcc84445bccf40a6215ff6fc6dd91978b1490e (patch) | |
| tree | 1f2cb11a503ce3ae4d4c7ef6ffe9ac5f32536b50 /drivers/sh | |
| parent | cc07aabc53978ae09a1d539237189f7c9841060a (diff) | |
| parent | 2f35fb3c8a6018a0a5fe4a7fb0948b853c157256 (diff) | |
| download | linux-75bcc84445bccf40a6215ff6fc6dd91978b1490e.tar.xz | |
Merge tag 'renesas-sh-drivers-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next
Pull SH driver update from Simon Horman:
- PM Runtime enhancements targeted for use with ARM-based Renesas R-Car
Gen2 SoCs
- Restrict INTC_USERIMASK to SH4A as it is only used there
* tag 'renesas-sh-drivers-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
drivers: sh: Enable PM runtime for new R-Car Gen2 SoCs
drivers: sh: pm_runtime implementation needs to suspend and resume devices
drivers: sh: Restrict INTC_USERIMASK to SH4A
drivers: sh: pm_runtime does not need idle callback
Diffstat (limited to 'drivers/sh')
| -rw-r--r-- | drivers/sh/intc/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/sh/pm_runtime.c | 40 |
2 files changed, 35 insertions, 7 deletions
diff --git a/drivers/sh/intc/Kconfig b/drivers/sh/intc/Kconfig index f7d90617c9d9..60228fae943f 100644 --- a/drivers/sh/intc/Kconfig +++ b/drivers/sh/intc/Kconfig @@ -6,7 +6,7 @@ comment "Interrupt controller options" config INTC_USERIMASK bool "Userspace interrupt masking support" - depends on ARCH_SHMOBILE || (SUPERH && CPU_SH4A) || COMPILE_TEST + depends on (SUPERH && CPU_SH4A) || COMPILE_TEST help This enables support for hardware-assisted userspace hardirq masking. diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c index 10c65eb51f85..72f63817a1a0 100644 --- a/drivers/sh/pm_runtime.c +++ b/drivers/sh/pm_runtime.c @@ -21,18 +21,43 @@ #include <linux/slab.h> #ifdef CONFIG_PM_RUNTIME - -static int default_platform_runtime_idle(struct device *dev) +static int sh_pm_runtime_suspend(struct device *dev) { - /* suspend synchronously to disable clocks immediately */ + int ret; + + ret = pm_generic_runtime_suspend(dev); + if (ret) { + dev_err(dev, "failed to suspend device\n"); + return ret; + } + + ret = pm_clk_suspend(dev); + if (ret) { + dev_err(dev, "failed to suspend clock\n"); + pm_generic_runtime_resume(dev); + return ret; + } + return 0; } +static int sh_pm_runtime_resume(struct device *dev) +{ + int ret; + + ret = pm_clk_resume(dev); + if (ret) { + dev_err(dev, "failed to resume clock\n"); + return ret; + } + + return pm_generic_runtime_resume(dev); +} + static struct dev_pm_domain default_pm_domain = { .ops = { - .runtime_suspend = pm_clk_suspend, - .runtime_resume = pm_clk_resume, - .runtime_idle = default_platform_runtime_idle, + .runtime_suspend = sh_pm_runtime_suspend, + .runtime_resume = sh_pm_runtime_resume, USE_PLATFORM_PM_SLEEP_OPS }, }; @@ -63,6 +88,9 @@ static int __init sh_pm_runtime_init(void) !of_machine_is_compatible("renesas,r8a7779") && !of_machine_is_compatible("renesas,r8a7790") && !of_machine_is_compatible("renesas,r8a7791") && + !of_machine_is_compatible("renesas,r8a7792") && + !of_machine_is_compatible("renesas,r8a7793") && + !of_machine_is_compatible("renesas,r8a7794") && !of_machine_is_compatible("renesas,sh7372") && !of_machine_is_compatible("renesas,sh73a0")) return 0; |