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ARM: OMAP24xx: PRM: add API for clearing wakeup status bits

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This helps to isolate the PRM into its own driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Tero Kristo
2014-02-26 15:31:05 +02:00
parent 7e28b465fd
commit 6bdc4b44b3
3 changed files with 32 additions and 18 deletions
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31
arch/arm/mach-omap2/pm24xx.c
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@@ -75,9 +75,9 @@ static int omap2_enter_full_retention(void)
/* Clear old wake-up events */
/* REVISIT: These write to reserved bits? */
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1);
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2);
omap2_prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
@@ -104,23 +104,18 @@ no_sleep:
clk_enable(osc_ck);
/* clear CORE wake-up events */
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1);
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
/* wakeup domain events - bit 1: GPT1, bit5 GPIO */
omap2_prm_clear_mod_reg_bits(0x4 | 0x1, WKUP_MOD, PM_WKST);
omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
/* MPU domain wake events */
l = omap2_prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET);
if (l & 0x01)
omap2_prm_write_mod_reg(0x01, OCP_MOD,
OMAP2_PRCM_IRQSTATUS_MPU_OFFSET);
if (l & 0x20)
omap2_prm_write_mod_reg(0x20, OCP_MOD,
OMAP2_PRCM_IRQSTATUS_MPU_OFFSET);
omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
0x1);
/* Mask future PRCM-to-MPU interrupts */
omap2_prm_write_mod_reg(0x0, OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET);
omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
0x20);
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_ON);
@@ -148,9 +143,9 @@ static void omap2_enter_mpu_retention(void)
* it is in retention mode. */
if (omap2_allow_mpu_retention()) {
/* REVISIT: These write to reserved bits? */
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1);
omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2);
omap2_prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
/* Try to enter MPU retention */
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);