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authorTony Lindgren <tony@atomide.com>2013-01-30 23:03:05 +0100
committerTony Lindgren <tony@atomide.com>2013-01-30 23:03:05 +0100
commit0e084c9c843320995b0e219f02880f910d439b37 (patch)
treefe541c1d636f9666104f7753d0435c4681685ef9 /arch/arm/mach-omap2/pm24xx.c
parentMerge tag 'omap-cleanup-a-for-3.9' of git://git.kernel.org/pub/scm/linux/kern... (diff)
parentARM: OMAP2+: powerdomain: fix whitespace, improve flag comments (diff)
downloadlinux-0e084c9c843320995b0e219f02880f910d439b37.tar.xz
linux-0e084c9c843320995b0e219f02880f910d439b37.zip
Merge tag 'omap-cleanup-b-for-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.9/pm
Several OMAP2+ power management fixes, optimizations, and cleanup. This series is a prerequisite for the functional powerdomain conversion series. Basic test logs for this branch are here: http://www.pwsan.com/omap/testlogs/pm_cleanup_fixes_3.9/20130129150017/
Diffstat (limited to 'arch/arm/mach-omap2/pm24xx.c')
-rw-r--r--arch/arm/mach-omap2/pm24xx.c30
1 files changed, 10 insertions, 20 deletions
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 909ef53ba2ea..b2a4df623545 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -90,11 +90,7 @@ static int omap2_enter_full_retention(void)
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2);
omap2_prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST);
- /*
- * Set MPU powerdomain's next power state to RETENTION;
- * preserve logic state during retention
- */
- pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET);
+ pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
/* Workaround to kill USB */
@@ -137,6 +133,9 @@ no_sleep:
/* Mask future PRCM-to-MPU interrupts */
omap2_prm_write_mod_reg(0x0, OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET);
+ pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
+ pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_ON);
+
return 0;
}
@@ -173,17 +172,16 @@ static void omap2_enter_mpu_retention(void)
omap2_prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST);
/* Try to enter MPU retention */
- omap2_prm_write_mod_reg((0x01 << OMAP_POWERSTATE_SHIFT) |
- OMAP_LOGICRETSTATE_MASK,
- MPU_MOD, OMAP2_PM_PWSTCTRL);
+ pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
+
} else {
/* Block MPU retention */
-
- omap2_prm_write_mod_reg(OMAP_LOGICRETSTATE_MASK, MPU_MOD,
- OMAP2_PM_PWSTCTRL);
+ pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
}
omap2_sram_idle();
+
+ pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
}
static int omap2_can_sleep(void)
@@ -238,25 +236,17 @@ static void __init prcm_setup_regs(void)
for (i = 0; i < num_mem_banks; i++)
pwrdm_set_mem_retst(core_pwrdm, i, PWRDM_POWER_RET);
- /* Set CORE powerdomain's next power state to RETENTION */
- pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
+ pwrdm_set_logic_retst(core_pwrdm, PWRDM_POWER_RET);
- /*
- * Set MPU powerdomain's next power state to RETENTION;
- * preserve logic state during retention
- */
pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET);
- pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
/* Force-power down DSP, GFX powerdomains */
pwrdm = clkdm_get_pwrdm(dsp_clkdm);
pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF);
- clkdm_sleep(dsp_clkdm);
pwrdm = clkdm_get_pwrdm(gfx_clkdm);
pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF);
- clkdm_sleep(gfx_clkdm);
/* Enable hardware-supervised idle for all clkdms */
clkdm_for_each(omap_pm_clkdms_setup, NULL);