diff options
| author | Kumar Sanghvi <Kumar.Sanghvi@stericsson.com> | 2010-04-01 16:08:43 +0530 |
|---|---|---|
| committer | John Rigby <john.rigby@linaro.org> | 2010-09-02 22:44:59 -0600 |
| commit | ff2350c3c60e487ccd24619724ae07065f0a0544 (patch) | |
| tree | e8d4df3d3d2581889c4c2407e99238e0da79a439 /arch/arm/mach-ux500/prcmu-fw.c | |
| parent | 6c25ff15266b47fa0f0099d89b66d436f3cd29af (diff) | |
PRCMU: Adding support for autonomous power management
Signed-off-by: Kumar Sanghvi <Kumar.Sanghvi@stericsson.com>
Diffstat (limited to 'arch/arm/mach-ux500/prcmu-fw.c')
| -rwxr-xr-x | arch/arm/mach-ux500/prcmu-fw.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/prcmu-fw.c b/arch/arm/mach-ux500/prcmu-fw.c index 8dfec34914d..1668539959c 100755 --- a/arch/arm/mach-ux500/prcmu-fw.c +++ b/arch/arm/mach-ux500/prcmu-fw.c @@ -1760,6 +1760,55 @@ void prcmu_system_reset(void) EXPORT_SYMBOL(prcmu_system_reset); /** + * prcmu_configure_auto_pwr_mgt - Configure Auto Pwr Mgt + * @apsleep: Policy for ApSleep + * @apidle: Policy for ApIdle + * + * Use this API to configure autonomous power management + * and controlling hw semaphores + */ +int prcmu_configure_auto_pwr_mgt( + struct sia_sva_auto_power_t apsleep, + struct sia_sva_auto_power_t apidle) +{ + + int retval; + + spin_lock(&req_mb2_lock); + + /* write the header for reqmb2 */ + writeb(HW_ACCT_AUTO_PWR_H, PRCM_MBOX_HEADER_REQ_MB2); + + /* fill out the reqmb2 for apsleep*/ + writeb(apsleep.sia_pwr_policy | apsleep.sva_pwr_policy, + PRCM_REQ_MB2_AUTOPWR_APSLEEP); + writeb(apsleep.sia_pwron_enable.complete_field, + PRCM_REQ_MB2_AUTOPWR_APSLEEP_SIA_PWRON_ENABLE); + writeb(apsleep.sva_pwron_enable.complete_field, + PRCM_REQ_MB2_AUTOPWR_APSLEEP_SVA_PWRON_ENABLE); + writeb(apsleep.auto_pwron_enable, + PRCM_REQ_MB2_AUTOPWR_APSLEEP_AUTO_PWRON_ENABLE); + + /* fill out the reqmb2 for apidle*/ + writeb(apidle.sia_pwr_policy | apidle.sva_pwr_policy, + PRCM_REQ_MB2_AUTOPWR_APIDLE); + writeb(apidle.sia_pwron_enable.complete_field, + PRCM_REQ_MB2_AUTOPWR_APIDLE_SIA_PWRON_ENABLE); + writeb(apidle.sva_pwron_enable.complete_field, + PRCM_REQ_MB2_AUTOPWR_APIDLE_SVA_PWRON_ENABLE); + writeb(apidle.auto_pwron_enable, + PRCM_REQ_MB2_AUTOPWR_APIDLE_AUTO_PWRON_ENABLE); + + retval = _wait_for_req_complete(REQ_MB2); + spin_unlock(&req_mb2_lock); + + dbg_printk("\n readb(PRCM_ACK_MB2) = %x\n", readb(PRCM_ACK_MB2)); + + return retval; +} +EXPORT_SYMBOL(prcmu_configure_auto_pwr_mgt); + +/** * prcmu_read_ack_mb7 - Read the AckMb7 Status message * * |