| Message ID | 1447858656-62464-1-git-send-email-lina.iyer@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Am Mittwoch, den 18.11.2015, 07:57 -0700 schrieb Lina Iyer: > From: Axel Haslam <ahaslam+renesas@baylibre.com> > > The generic_pm_domain structure uses an array of latencies to be able to > declare multiple intermediate states. > > Declare a single "OFF" state with the default latencies So that the > power_off_latency_ns and power_on_latency_ns fields of generic_pm_domain > structure can be eventualy removed. > > Signed-off-by: Axel Haslam <ahaslam+renesas@baylibre.com> > Signed-off-by: Lina Iyer <lina.iyer@linaro.org> > [Lina: pm_genpd_init() argument change] > --- > arch/arm/mach-imx/gpc.c | 14 ++++++++++++-- > 1 file changed, 12 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c > index 8e7976a..b070e06 100644 > --- a/arch/arm/mach-imx/gpc.c > +++ b/arch/arm/mach-imx/gpc.c > @@ -368,13 +368,23 @@ static struct generic_pm_domain imx6q_arm_domain = { > .name = "ARM", > }; > > +static struct genpd_power_state imx6q_arm_domain_states[] = { Those states are for the PU, not the ARM domain. > + { > + .name = "OFF", > + .power_off_latency_ns = 25000, > + .power_on_latency_ns = 2000000, > + }, > +}; > + > static struct pu_domain imx6q_pu_domain = { > .base = { > .name = "PU", > .power_off = imx6q_pm_pu_power_off, > .power_on = imx6q_pm_pu_power_on, > - .power_off_latency_ns = 25000, > - .power_on_latency_ns = 2000000, > + .gov = NULL, > + .status = GPD_STATE_POWER_OFF, The above 2 lines should not be needed. This is a static struct, so .gov will already be NULL. status is set by pm_genpd_init() and the above value is actively wrong. > + .states = imx6q_arm_domain_states, > + .state_count = ARRAY_SIZE(imx6q_arm_domain_states), > }, > }; > How urgent is this patch? I have a series to rework the GPC driver almost ready and I could fold this change in directly if it's okay for this to sit through a review of the rework. Regards, Lucas
Am Montag, den 23.11.2015, 14:31 +0100 schrieb Lucas Stach: > Am Mittwoch, den 18.11.2015, 07:57 -0700 schrieb Lina Iyer: > > From: Axel Haslam <ahaslam+renesas@baylibre.com> > > > > The generic_pm_domain structure uses an array of latencies to be able to > > declare multiple intermediate states. > > > > Declare a single "OFF" state with the default latencies So that the > > power_off_latency_ns and power_on_latency_ns fields of generic_pm_domain > > structure can be eventualy removed. > > > > Signed-off-by: Axel Haslam <ahaslam+renesas@baylibre.com> > > Signed-off-by: Lina Iyer <lina.iyer@linaro.org> > > [Lina: pm_genpd_init() argument change] > > --- > > arch/arm/mach-imx/gpc.c | 14 ++++++++++++-- > > 1 file changed, 12 insertions(+), 2 deletions(-) > > > > diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c > > index 8e7976a..b070e06 100644 > > --- a/arch/arm/mach-imx/gpc.c > > +++ b/arch/arm/mach-imx/gpc.c > > @@ -368,13 +368,23 @@ static struct generic_pm_domain imx6q_arm_domain = { > > .name = "ARM", > > }; > > > > +static struct genpd_power_state imx6q_arm_domain_states[] = { > > Those states are for the PU, not the ARM domain. > > > + { > > + .name = "OFF", > > + .power_off_latency_ns = 25000, > > + .power_on_latency_ns = 2000000, > > + }, > > +}; > > + > > static struct pu_domain imx6q_pu_domain = { > > .base = { > > .name = "PU", > > .power_off = imx6q_pm_pu_power_off, > > .power_on = imx6q_pm_pu_power_on, > > - .power_off_latency_ns = 25000, > > - .power_on_latency_ns = 2000000, > > + .gov = NULL, > > + .status = GPD_STATE_POWER_OFF, > > The above 2 lines should not be needed. This is a static struct, so .gov > will already be NULL. status is set by pm_genpd_init() and the above > value is actively wrong. > > > + .states = imx6q_arm_domain_states, > > + .state_count = ARRAY_SIZE(imx6q_arm_domain_states), > > }, > > }; > > > > How urgent is this patch? I have a series to rework the GPC driver > almost ready and I could fold this change in directly if it's okay for > this to sit through a review of the rework. And I just noticed this depends on changes that are not already in v4.4-rc. Why is this sent as a single patch and not as part of the series adding multiple state support to genpd? Regards, Lucas
On Mon, Nov 23 2015 at 06:42 -0700, Lucas Stach wrote: >Am Montag, den 23.11.2015, 14:31 +0100 schrieb Lucas Stach: >> Am Mittwoch, den 18.11.2015, 07:57 -0700 schrieb Lina Iyer: >> > From: Axel Haslam <ahaslam+renesas@baylibre.com> >> > >> > The generic_pm_domain structure uses an array of latencies to be able to >> > declare multiple intermediate states. >> > >> > Declare a single "OFF" state with the default latencies So that the >> > power_off_latency_ns and power_on_latency_ns fields of generic_pm_domain >> > structure can be eventualy removed. >> > >> > Signed-off-by: Axel Haslam <ahaslam+renesas@baylibre.com> >> > Signed-off-by: Lina Iyer <lina.iyer@linaro.org> >> > [Lina: pm_genpd_init() argument change] >> > --- >> > arch/arm/mach-imx/gpc.c | 14 ++++++++++++-- >> > 1 file changed, 12 insertions(+), 2 deletions(-) >> > >> > diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c >> > index 8e7976a..b070e06 100644 >> > --- a/arch/arm/mach-imx/gpc.c >> > +++ b/arch/arm/mach-imx/gpc.c >> > @@ -368,13 +368,23 @@ static struct generic_pm_domain imx6q_arm_domain = { >> > .name = "ARM", >> > }; >> > >> > +static struct genpd_power_state imx6q_arm_domain_states[] = { >> >> Those states are for the PU, not the ARM domain. >> >> > + { >> > + .name = "OFF", >> > + .power_off_latency_ns = 25000, >> > + .power_on_latency_ns = 2000000, >> > + }, >> > +}; >> > + >> > static struct pu_domain imx6q_pu_domain = { >> > .base = { >> > .name = "PU", >> > .power_off = imx6q_pm_pu_power_off, >> > .power_on = imx6q_pm_pu_power_on, >> > - .power_off_latency_ns = 25000, >> > - .power_on_latency_ns = 2000000, >> > + .gov = NULL, >> > + .status = GPD_STATE_POWER_OFF, >> >> The above 2 lines should not be needed. This is a static struct, so .gov >> will already be NULL. status is set by pm_genpd_init() and the above >> value is actively wrong. >> True. >> > + .states = imx6q_arm_domain_states, >> > + .state_count = ARRAY_SIZE(imx6q_arm_domain_states), >> > }, >> > }; >> > >> >> How urgent is this patch? I have a series to rework the GPC driver >> almost ready and I could fold this change in directly if it's okay for >> this to sit through a review of the rework. > >And I just noticed this depends on changes that are not already in >v4.4-rc. Why is this sent as a single patch and not as part of the >series adding multiple state support to genpd? > Sorry, since this is ARM 32, I had not comple tested it when I sent out the series. I sent this out after I realized it. Thanks, Lina >Regards, >Lucas > >-- >Pengutronix e.K. | Lucas Stach | >Industrial Linux Solutions | http://www.pengutronix.de/ | >
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c index 8e7976a..b070e06 100644 --- a/arch/arm/mach-imx/gpc.c +++ b/arch/arm/mach-imx/gpc.c @@ -368,13 +368,23 @@ static struct generic_pm_domain imx6q_arm_domain = { .name = "ARM", }; +static struct genpd_power_state imx6q_arm_domain_states[] = { + { + .name = "OFF", + .power_off_latency_ns = 25000, + .power_on_latency_ns = 2000000, + }, +}; + static struct pu_domain imx6q_pu_domain = { .base = { .name = "PU", .power_off = imx6q_pm_pu_power_off, .power_on = imx6q_pm_pu_power_on, - .power_off_latency_ns = 25000, - .power_on_latency_ns = 2000000, + .gov = NULL, + .status = GPD_STATE_POWER_OFF, + .states = imx6q_arm_domain_states, + .state_count = ARRAY_SIZE(imx6q_arm_domain_states), }, };