Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Subject | [PATCH v4 5/9] ARM: shmobile: R-Mobile: Enable module clocks if !CONFIG_PM_RUNTIME | Date | Mon, 3 Nov 2014 16:34:52 +0100 |
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If CONFIG_PM_RUNTIME is not set, the clocks must be enabled before the devices can be used.
Currently these clocks are enabled by the !CONFIG_PM_RUNTIME version of pm_clk_notify, activated by the hack in drivers/sh/pm_runtime.c, but this will go away soon (at least for DT).
On detach, disabling the clocks is already handled by pm_clk_destroy(). On system suspend/resume, disabling/enabling clocks is already handled from the genpd->dev_ops.{start,stop}() callbacks.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- v4: - New. --- arch/arm/mach-shmobile/pm-rmobile.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c index 068608d5f54a9a64..6fb86cdb9fa2b3a7 100644 --- a/arch/arm/mach-shmobile/pm-rmobile.c +++ b/arch/arm/mach-shmobile/pm-rmobile.c @@ -117,6 +117,14 @@ static int rmobile_pd_attach_dev(struct device *dev) goto fail; } + if (!IS_ENABLED(CONFIG_PM_RUNTIME)) { + error = pm_clk_resume(dev); + if (error) { + dev_err(dev, "pm_clk_resume failed %d\n", error); + goto fail; + } + } + return 0; fail: -- 1.9.1
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