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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-06 14:44:09 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-06 14:44:09 -0400 |
commit | 75bcc84445bccf40a6215ff6fc6dd91978b1490e (patch) | |
tree | 1f2cb11a503ce3ae4d4c7ef6ffe9ac5f32536b50 /drivers/sh | |
parent | cc07aabc53978ae09a1d539237189f7c9841060a (diff) | |
parent | 2f35fb3c8a6018a0a5fe4a7fb0948b853c157256 (diff) |
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" | |||
6 | 6 | ||
7 | config INTC_USERIMASK | 7 | config INTC_USERIMASK |
8 | bool "Userspace interrupt masking support" | 8 | bool "Userspace interrupt masking support" |
9 | depends on ARCH_SHMOBILE || (SUPERH && CPU_SH4A) || COMPILE_TEST | 9 | depends on (SUPERH && CPU_SH4A) || COMPILE_TEST |
10 | help | 10 | help |
11 | This enables support for hardware-assisted userspace hardirq | 11 | This enables support for hardware-assisted userspace hardirq |
12 | masking. | 12 | 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 @@ | |||
21 | #include <linux/slab.h> | 21 | #include <linux/slab.h> |
22 | 22 | ||
23 | #ifdef CONFIG_PM_RUNTIME | 23 | #ifdef CONFIG_PM_RUNTIME |
24 | 24 | static int sh_pm_runtime_suspend(struct device *dev) | |
25 | static int default_platform_runtime_idle(struct device *dev) | ||
26 | { | 25 | { |
27 | /* suspend synchronously to disable clocks immediately */ | 26 | int ret; |
27 | |||
28 | ret = pm_generic_runtime_suspend(dev); | ||
29 | if (ret) { | ||
30 | dev_err(dev, "failed to suspend device\n"); | ||
31 | return ret; | ||
32 | } | ||
33 | |||
34 | ret = pm_clk_suspend(dev); | ||
35 | if (ret) { | ||
36 | dev_err(dev, "failed to suspend clock\n"); | ||
37 | pm_generic_runtime_resume(dev); | ||
38 | return ret; | ||
39 | } | ||
40 | |||
28 | return 0; | 41 | return 0; |
29 | } | 42 | } |
30 | 43 | ||
44 | static int sh_pm_runtime_resume(struct device *dev) | ||
45 | { | ||
46 | int ret; | ||
47 | |||
48 | ret = pm_clk_resume(dev); | ||
49 | if (ret) { | ||
50 | dev_err(dev, "failed to resume clock\n"); | ||
51 | return ret; | ||
52 | } | ||
53 | |||
54 | return pm_generic_runtime_resume(dev); | ||
55 | } | ||
56 | |||
31 | static struct dev_pm_domain default_pm_domain = { | 57 | static struct dev_pm_domain default_pm_domain = { |
32 | .ops = { | 58 | .ops = { |
33 | .runtime_suspend = pm_clk_suspend, | 59 | .runtime_suspend = sh_pm_runtime_suspend, |
34 | .runtime_resume = pm_clk_resume, | 60 | .runtime_resume = sh_pm_runtime_resume, |
35 | .runtime_idle = default_platform_runtime_idle, | ||
36 | USE_PLATFORM_PM_SLEEP_OPS | 61 | USE_PLATFORM_PM_SLEEP_OPS |
37 | }, | 62 | }, |
38 | }; | 63 | }; |
@@ -63,6 +88,9 @@ static int __init sh_pm_runtime_init(void) | |||
63 | !of_machine_is_compatible("renesas,r8a7779") && | 88 | !of_machine_is_compatible("renesas,r8a7779") && |
64 | !of_machine_is_compatible("renesas,r8a7790") && | 89 | !of_machine_is_compatible("renesas,r8a7790") && |
65 | !of_machine_is_compatible("renesas,r8a7791") && | 90 | !of_machine_is_compatible("renesas,r8a7791") && |
91 | !of_machine_is_compatible("renesas,r8a7792") && | ||
92 | !of_machine_is_compatible("renesas,r8a7793") && | ||
93 | !of_machine_is_compatible("renesas,r8a7794") && | ||
66 | !of_machine_is_compatible("renesas,sh7372") && | 94 | !of_machine_is_compatible("renesas,sh7372") && |
67 | !of_machine_is_compatible("renesas,sh73a0")) | 95 | !of_machine_is_compatible("renesas,sh73a0")) |
68 | return 0; | 96 | return 0; |