From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH 1/3] PM / Domains: Allow overriding the ->xlate() callback Date: Tue, 14 Mar 2017 20:15:14 +0100 Message-ID: <20170314191516.13083-2-thierry.reding@gmail.com> References: <20170314191516.13083-1-thierry.reding@gmail.com> Return-path: In-Reply-To: <20170314191516.13083-1-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson Cc: Jonathan Hunter , Stefan Kristiansson , Mikko Perttunen , linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-pm@vger.kernel.org From: Thierry Reding Allow generic power domain providers to override the ->xlate() callback in case the default genpd_xlate_onecell() translation callback is not good enough. One potential use-case for this is to allow generic power domains to be specified by an ID rather than an index. Signed-off-by: Thierry Reding --- drivers/base/power/domain.c | 8 ++++---- include/linux/pm_domain.h | 4 ++++ 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index e697dec9d25b..c102557f6c7e 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1570,9 +1570,6 @@ EXPORT_SYMBOL_GPL(pm_genpd_remove); #ifdef CONFIG_PM_GENERIC_DOMAINS_OF -typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, - void *data); - /* * Device Tree based PM domain providers. * @@ -1730,6 +1727,9 @@ int of_genpd_add_provider_onecell(struct device_node *np, mutex_lock(&gpd_list_lock); + if (!data->xlate) + data->xlate = genpd_xlate_onecell; + for (i = 0; i < data->num_domains; i++) { if (!data->domains[i]) continue; @@ -1740,7 +1740,7 @@ int of_genpd_add_provider_onecell(struct device_node *np, data->domains[i]->has_provider = true; } - ret = genpd_add_provider(np, genpd_xlate_onecell, data); + ret = genpd_add_provider(np, data->xlate, data); if (ret < 0) goto error; diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 5339ed5bd6f9..5163f371a308 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -204,9 +204,13 @@ static inline void pm_genpd_syscore_poweron(struct device *dev) {} /* OF PM domain providers */ struct of_device_id; +typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, + void *data); + struct genpd_onecell_data { struct generic_pm_domain **domains; unsigned int num_domains; + genpd_xlate_t xlate; }; #ifdef CONFIG_PM_GENERIC_DOMAINS_OF -- 2.12.0