From: Rickard Andersson <rickard.andersson@stericsson.com> To: rjw@sisk.pl, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: hongbo.zhang@linaro.org, ulf.hansson@linaro.org, khilman@linaro.org, linus.walleij@stericsson.com, daniel.lezcano@linaro.org, rickard.andersson@stericsson.com Subject: [PATCH V2 01/12] mfd: db8500: Add IO force function Date: Thu, 28 Mar 2013 17:11:27 +0100 [thread overview] Message-ID: <1364487098-10319-2-git-send-email-rickard.andersson@stericsson.com> (raw) In-Reply-To: <1364487098-10319-1-git-send-email-rickard.andersson@stericsson.com> The IO force signal needs to be controlled when the system enters/exits the sleep state ApSleep. This hardware signal tells the system that some pins could be driven by GPIO settings instead of directly from the hardware block. Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com> --- drivers/mfd/db8500-prcmu.c | 9 +++++++++ include/linux/mfd/db8500-prcmu.h | 1 + include/linux/mfd/dbx500-prcmu.h | 5 +++++ 3 files changed, 15 insertions(+) diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 268f45d..7f32575 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -879,6 +879,15 @@ bool db8500_prcmu_pending_irq(void) return false; } +void db8500_prcmu_set_ioforce(bool enable) +{ + u32 val = readl(PRCM_IOCR) & ~PRCM_IOCR_IOFORCE; + + if (enable) + val |= PRCM_IOCR_IOFORCE; + writel(val, PRCM_IOCR); +} + /* * This function checks if the specified cpu is in in WFI. It's usage * makes sense only if the gic is decoupled with the db8500_prcmu_gic_decouple diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 6ee4247..21660f6 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -547,6 +547,7 @@ int db8500_prcmu_gic_recouple(void); int db8500_prcmu_copy_gic_settings(void); bool db8500_prcmu_gic_pending_irq(void); bool db8500_prcmu_pending_irq(void); +void db8500_prcmu_set_ioforce(bool enable); bool db8500_prcmu_is_cpu_in_wfi(int cpu); void db8500_prcmu_enable_wakeups(u32 wakeups); int db8500_prcmu_set_epod(u16 epod_id, u8 epod_state); diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index c202d6c..2909546 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -267,6 +267,11 @@ static inline bool prcmu_pending_irq(void) return db8500_prcmu_pending_irq(); } +static inline void prcmu_set_ioforce(bool force) +{ + return db8500_prcmu_set_ioforce(force); +} + static inline int prcmu_set_epod(u16 epod_id, u8 epod_state) { return db8500_prcmu_set_epod(epod_id, epod_state); -- 1.8.2
WARNING: multiple messages have this Message-ID (diff)
From: rickard.andersson@stericsson.com (Rickard Andersson) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V2 01/12] mfd: db8500: Add IO force function Date: Thu, 28 Mar 2013 17:11:27 +0100 [thread overview] Message-ID: <1364487098-10319-2-git-send-email-rickard.andersson@stericsson.com> (raw) In-Reply-To: <1364487098-10319-1-git-send-email-rickard.andersson@stericsson.com> The IO force signal needs to be controlled when the system enters/exits the sleep state ApSleep. This hardware signal tells the system that some pins could be driven by GPIO settings instead of directly from the hardware block. Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com> --- drivers/mfd/db8500-prcmu.c | 9 +++++++++ include/linux/mfd/db8500-prcmu.h | 1 + include/linux/mfd/dbx500-prcmu.h | 5 +++++ 3 files changed, 15 insertions(+) diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 268f45d..7f32575 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -879,6 +879,15 @@ bool db8500_prcmu_pending_irq(void) return false; } +void db8500_prcmu_set_ioforce(bool enable) +{ + u32 val = readl(PRCM_IOCR) & ~PRCM_IOCR_IOFORCE; + + if (enable) + val |= PRCM_IOCR_IOFORCE; + writel(val, PRCM_IOCR); +} + /* * This function checks if the specified cpu is in in WFI. It's usage * makes sense only if the gic is decoupled with the db8500_prcmu_gic_decouple diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 6ee4247..21660f6 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -547,6 +547,7 @@ int db8500_prcmu_gic_recouple(void); int db8500_prcmu_copy_gic_settings(void); bool db8500_prcmu_gic_pending_irq(void); bool db8500_prcmu_pending_irq(void); +void db8500_prcmu_set_ioforce(bool enable); bool db8500_prcmu_is_cpu_in_wfi(int cpu); void db8500_prcmu_enable_wakeups(u32 wakeups); int db8500_prcmu_set_epod(u16 epod_id, u8 epod_state); diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index c202d6c..2909546 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -267,6 +267,11 @@ static inline bool prcmu_pending_irq(void) return db8500_prcmu_pending_irq(); } +static inline void prcmu_set_ioforce(bool force) +{ + return db8500_prcmu_set_ioforce(force); +} + static inline int prcmu_set_epod(u16 epod_id, u8 epod_state) { return db8500_prcmu_set_epod(epod_id, epod_state); -- 1.8.2
next prev parent reply other threads:[~2013-03-28 16:11 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-03-28 16:11 [PATCH V2 00/12] ux500 suspend-resume Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson [this message] 2013-03-28 16:11 ` [PATCH V2 01/12] mfd: db8500: Add IO force function Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 02/12] ARM: ux500: Add platform suspend ops Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 03/12] PM / Domains: Add on-off notifiers Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-30 23:17 ` Rafael J. Wysocki 2013-03-30 23:17 ` Rafael J. Wysocki 2013-04-23 12:26 ` Rickard Andersson 2013-04-23 12:26 ` Rickard Andersson 2013-04-29 12:14 ` Linus Walleij 2013-04-29 12:14 ` Linus Walleij 2013-04-30 12:55 ` Rickard Andersson 2013-04-30 12:55 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 04/12] PM / Domains: Lookup domain by name Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 05/12] ARM: ux500: Create APE generic power domain Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 06/12] clk: ux500: Add PRCC power management Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 07/12] ARM: ux500: Create u8500-clk device Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 08/12] ARM: ux500: Add ApSleep state to suspend Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 09/12] drivers: bus: ux500: Add ICN driver Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 10/12] ARM: ux500: Create ICN device Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 11/12] misc: ux500: Add TPIU driver Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson 2013-03-28 16:11 ` [PATCH V2 12/12] ARM: ux500: Create TPIU device Rickard Andersson 2013-03-28 16:11 ` Rickard Andersson
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