On 30-07-15, 23:24, Stephen Boyd wrote: > On 07/29, Viresh Kumar wrote: > > With "operating-points-v2" bindings, its possible to specify the OPP to > > s/its/it's/ ? > > > which the device must be switched, before suspending. > > > > This patch adds support for getting that information. > > > > Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> > > Signed-off-by: Viresh Kumar <[email protected]> > > --- > > Reviewed-by: Stephen Boyd <[email protected]>
---------------------8<------------------- Message-Id: <5e0cf40cc78bfa327cbbccae016d03a1dfbd1a84.1438323941.git.viresh.ku...@linaro.org> From: Viresh Kumar <[email protected]> Date: Sat, 13 Jun 2015 15:10:21 +0530 Subject: [PATCH] PM / OPP: Add support for opp-suspend With "operating-points-v2" bindings, it's possible to specify the OPP to which the device must be switched, before suspending. This patch adds support for getting that information. Reviewed-by: Stephen Boyd <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Viresh Kumar <[email protected]> --- drivers/base/power/opp.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index 5d699e3ec136..0ebcea49145a 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -133,6 +133,7 @@ struct device_opp { struct device_node *np; unsigned long clock_latency_ns_max; bool shared_opp; + struct dev_pm_opp *suspend_opp; }; /* @@ -923,6 +924,16 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np) if (ret) goto free_opp; + /* OPP to select on device suspend */ + if (of_property_read_bool(np, "opp-suspend")) { + if (dev_opp->suspend_opp) + dev_warn(dev, "%s: Multiple suspend OPPs found (%lu %lu)\n", + __func__, dev_opp->suspend_opp->rate, + new_opp->rate); + else + dev_opp->suspend_opp = new_opp; + } + if (new_opp->clock_latency_ns > dev_opp->clock_latency_ns_max) dev_opp->clock_latency_ns_max = new_opp->clock_latency_ns; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
