From: "Rafael J. Wysocki" <rjw@sisk.pl> To: Linux-sh list <linux-sh@vger.kernel.org> Cc: LKML <linux-kernel@vger.kernel.org>, Linux PM list <linux-pm@vger.kernel.org>, Magnus Damm <magnus.damm@gmail.com> Subject: [PATCH 4/12] PM / Domains: Make it possible to use names when adding subdomains Date: Mon, 06 Aug 2012 23:08:37 +0000 [thread overview] Message-ID: <201208070108.38081.rjw@sisk.pl> (raw) In-Reply-To: <201208070105.23262.rjw@sisk.pl> Add a new helper function, pm_genpd_add_subdomain_names(), allowing the caller to add a subdomain to a generic PM domain using names for domain identification (both domains have to be initialized before). This function is useful for adding subdomains to PM domains whose representations are stored in tables, when the caller doesn't know the indices of the domain to add the subdomain to and of the subdomain itself, but it knows the domains' names. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> --- drivers/base/power/domain.c | 32 +++++++++++++++++++++++++++++++- include/linux/pm_domain.h | 7 +++++++ 2 files changed, 38 insertions(+), 1 deletion(-) Index: linux/drivers/base/power/domain.c =================================--- linux.orig/drivers/base/power/domain.c +++ linux/drivers/base/power/domain.c @@ -1584,7 +1584,8 @@ int pm_genpd_add_subdomain(struct generi struct gpd_link *link; int ret = 0; - if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain)) + if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain) + || genpd = subdomain) return -EINVAL; start: @@ -1631,6 +1632,35 @@ int pm_genpd_add_subdomain(struct generi } /** + * pm_genpd_add_subdomain_names - Add a subdomain to an I/O PM domain. + * @master_name: Name of the master PM domain to add the subdomain to. + * @subdomain_name: Name of the subdomain to be added. + */ +int pm_genpd_add_subdomain_names(const char *master_name, + const char *subdomain_name) +{ + struct generic_pm_domain *master = NULL, *subdomain = NULL, *gpd; + + if (IS_ERR_OR_NULL(master_name) || IS_ERR_OR_NULL(subdomain_name)) + return -EINVAL; + + mutex_lock(&gpd_list_lock); + list_for_each_entry(gpd, &gpd_list, gpd_list_node) { + if (!master && !strcmp(gpd->name, master_name)) + master = gpd; + + if (!subdomain && !strcmp(gpd->name, subdomain_name)) + subdomain = gpd; + + if (master && subdomain) + break; + } + mutex_unlock(&gpd_list_lock); + + return pm_genpd_add_subdomain(master, subdomain); +} + +/** * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain. * @genpd: Master PM domain to remove the subdomain from. * @subdomain: Subdomain to be removed. Index: linux/include/linux/pm_domain.h =================================--- linux.orig/include/linux/pm_domain.h +++ linux/include/linux/pm_domain.h @@ -147,6 +147,8 @@ extern int pm_genpd_remove_device(struct extern void pm_genpd_dev_need_restore(struct device *dev, bool val); extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *new_subdomain); +extern int pm_genpd_add_subdomain_names(const char *master_name, + const char *subdomain_name); extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target); extern int pm_genpd_add_callbacks(struct device *dev, @@ -201,6 +203,11 @@ static inline int pm_genpd_add_subdomain { return -ENOSYS; } +static inline int pm_genpd_add_subdomain_names(const char *master_name, + const char *subdomain_name) +{ + return -ENOSYS; +} static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target) {
WARNING: multiple messages have this Message-ID (diff)
From: "Rafael J. Wysocki" <rjw@sisk.pl> To: "Linux-sh list" <linux-sh@vger.kernel.org> Cc: LKML <linux-kernel@vger.kernel.org>, Linux PM list <linux-pm@vger.kernel.org>, Magnus Damm <magnus.damm@gmail.com> Subject: [PATCH 4/12] PM / Domains: Make it possible to use names when adding subdomains Date: Tue, 7 Aug 2012 01:08:37 +0200 [thread overview] Message-ID: <201208070108.38081.rjw@sisk.pl> (raw) In-Reply-To: <201208070105.23262.rjw@sisk.pl> Add a new helper function, pm_genpd_add_subdomain_names(), allowing the caller to add a subdomain to a generic PM domain using names for domain identification (both domains have to be initialized before). This function is useful for adding subdomains to PM domains whose representations are stored in tables, when the caller doesn't know the indices of the domain to add the subdomain to and of the subdomain itself, but it knows the domains' names. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> --- drivers/base/power/domain.c | 32 +++++++++++++++++++++++++++++++- include/linux/pm_domain.h | 7 +++++++ 2 files changed, 38 insertions(+), 1 deletion(-) Index: linux/drivers/base/power/domain.c =================================================================== --- linux.orig/drivers/base/power/domain.c +++ linux/drivers/base/power/domain.c @@ -1584,7 +1584,8 @@ int pm_genpd_add_subdomain(struct generi struct gpd_link *link; int ret = 0; - if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain)) + if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain) + || genpd == subdomain) return -EINVAL; start: @@ -1631,6 +1632,35 @@ int pm_genpd_add_subdomain(struct generi } /** + * pm_genpd_add_subdomain_names - Add a subdomain to an I/O PM domain. + * @master_name: Name of the master PM domain to add the subdomain to. + * @subdomain_name: Name of the subdomain to be added. + */ +int pm_genpd_add_subdomain_names(const char *master_name, + const char *subdomain_name) +{ + struct generic_pm_domain *master = NULL, *subdomain = NULL, *gpd; + + if (IS_ERR_OR_NULL(master_name) || IS_ERR_OR_NULL(subdomain_name)) + return -EINVAL; + + mutex_lock(&gpd_list_lock); + list_for_each_entry(gpd, &gpd_list, gpd_list_node) { + if (!master && !strcmp(gpd->name, master_name)) + master = gpd; + + if (!subdomain && !strcmp(gpd->name, subdomain_name)) + subdomain = gpd; + + if (master && subdomain) + break; + } + mutex_unlock(&gpd_list_lock); + + return pm_genpd_add_subdomain(master, subdomain); +} + +/** * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain. * @genpd: Master PM domain to remove the subdomain from. * @subdomain: Subdomain to be removed. Index: linux/include/linux/pm_domain.h =================================================================== --- linux.orig/include/linux/pm_domain.h +++ linux/include/linux/pm_domain.h @@ -147,6 +147,8 @@ extern int pm_genpd_remove_device(struct extern void pm_genpd_dev_need_restore(struct device *dev, bool val); extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *new_subdomain); +extern int pm_genpd_add_subdomain_names(const char *master_name, + const char *subdomain_name); extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target); extern int pm_genpd_add_callbacks(struct device *dev, @@ -201,6 +203,11 @@ static inline int pm_genpd_add_subdomain { return -ENOSYS; } +static inline int pm_genpd_add_subdomain_names(const char *master_name, + const char *subdomain_name) +{ + return -ENOSYS; +} static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target) {
next prev parent reply other threads:[~2012-08-06 23:08 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-08-06 23:05 [PATCH 0/12] PM: Make ARM/shmobile PM domains initialization more straightforward Rafael J. Wysocki 2012-08-06 23:05 ` Rafael J. Wysocki 2012-08-06 23:06 ` [PATCH 1/12] PM / Domains: Make it possible to use domain names when adding devices Rafael J. Wysocki 2012-08-06 23:06 ` Rafael J. Wysocki 2012-08-06 23:07 ` [PATCH 2/12] ARM: shmobile: Use names of power domains for adding devices to them Rafael J. Wysocki 2012-08-06 23:07 ` Rafael J. Wysocki 2012-08-06 23:07 ` [PATCH 3/12] ARM: shmobile: Drop r8a7779_add_device_to_domain() Rafael J. Wysocki 2012-08-06 23:07 ` Rafael J. Wysocki 2012-08-06 23:08 ` Rafael J. Wysocki [this message] 2012-08-06 23:08 ` [PATCH 4/12] PM / Domains: Make it possible to use names when adding subdomains Rafael J. Wysocki 2012-08-06 23:09 ` [PATCH 5/12] ARM: shmobile: Use domain names when adding subdomains to power domains Rafael J. Wysocki 2012-08-06 23:09 ` Rafael J. Wysocki 2012-08-06 23:10 ` [PATCH 6/12] ARM: shmobile: Add routine for automatic PM domains initialization Rafael J. Wysocki 2012-08-06 23:10 ` Rafael J. Wysocki 2012-08-06 23:11 ` [PATCH 7/12] PM / Domains: Add power-on function using names to identify domains Rafael J. Wysocki 2012-08-06 23:11 ` Rafael J. Wysocki 2012-08-06 23:11 ` [PATCH 8/12] PM / shmobile: Do not access sh7372 A4S domain internals directly Rafael J. Wysocki 2012-08-06 23:11 ` Rafael J. Wysocki 2012-08-06 23:12 ` [PATCH 9/12] ARM: shmobile: Move sh7372's PM domain objects to a table Rafael J. Wysocki 2012-08-06 23:12 ` Rafael J. Wysocki 2012-08-06 23:13 ` [PATCH 10/12] ARM: shmobile: Move r8a7740's " Rafael J. Wysocki 2012-08-06 23:13 ` Rafael J. Wysocki 2012-08-06 23:14 ` [PATCH 11/12] ARM: shmobile: Move r8a7779's " Rafael J. Wysocki 2012-08-06 23:14 ` Rafael J. Wysocki 2012-08-06 23:15 ` [PATCH 12/12] ARM: shmobile: Make rmobile_init_pm_domain() static Rafael J. Wysocki 2012-08-06 23:15 ` Rafael J. Wysocki
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=201208070108.38081.rjw@sisk.pl \ --to=rjw@sisk.pl \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-pm@vger.kernel.org \ --cc=linux-sh@vger.kernel.org \ --cc=magnus.damm@gmail.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.