waterDataStatistics realizationOfDataCalculation.c 徐寅秋 commit at 2021-01-18

waterDataStatistics/calculationOfAlarmUnprocessedData/realizationOfDataCalculation.c

@@ -293,3 +293,96 @@ void omap_sram_idle(void)
 	/*
 	 * On EMU/HS devices ROM code restores a SRDC value
 	 * from scratchpad which has automatic self refresh on timeout
+	 * of AUTO_CNT = 1 enabled. This takes care of erratum ID i443.
+	 * Hence store/restore the SDRC_POWER register here.
+	 */
+	if (cpu_is_omap3430() && omap_rev() >= OMAP3430_REV_ES3_0 &&
+	    (omap_type() == OMAP2_DEVICE_TYPE_EMU ||
+	     omap_type() == OMAP2_DEVICE_TYPE_SEC) &&
+	    core_next_state == PWRDM_POWER_OFF)
+		sdrc_pwr = sdrc_read_reg(SDRC_POWER);
+
+	/*
+	 * omap3_arm_context is the location where some ARM context
+	 * get saved. The rest is placed on the stack, and restored
+	 * from there before resuming.
+	 */
+	if (save_state)
+		omap34xx_save_context(omap3_arm_context);
+	if (save_state == 1 || save_state == 3)
+		cpu_suspend(save_state, omap34xx_do_sram_idle);
+	else
+		omap34xx_do_sram_idle(save_state);
+
+	/* Restore normal SDRC POWER settings */
+	if (cpu_is_omap3430() && omap_rev() >= OMAP3430_REV_ES3_0 &&
+	    (omap_type() == OMAP2_DEVICE_TYPE_EMU ||
+	     omap_type() == OMAP2_DEVICE_TYPE_SEC) &&
+	    core_next_state == PWRDM_POWER_OFF)
+		sdrc_write_reg(sdrc_pwr, SDRC_POWER);
+
+	/* CORE */
+	if (core_next_state < PWRDM_POWER_ON) {
+		core_prev_state = pwrdm_read_prev_pwrst(core_pwrdm);
+		if (core_prev_state == PWRDM_POWER_OFF) {
+			omap3_core_restore_context();
+			omap3_cm_restore_context();
+			omap3_sram_restore_context();
+			omap2_sms_restore_context();
+		}
+		if (core_next_state == PWRDM_POWER_OFF)
+			omap2_prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
+					       OMAP3430_GR_MOD,
+					       OMAP3_PRM_VOLTCTRL_OFFSET);
+	}
+	omap3_intc_resume_idle();
+
+	pwrdm_post_transition(NULL);
+
+	/* PER */
+	if (per_next_state < PWRDM_POWER_ON)
+		omap2_gpio_resume_after_idle();
+}
+
+static void omap3_pm_idle(void)
+{
+	local_fiq_disable();
+
+	if (omap_irq_pending())
+		goto out;
+
+	trace_power_start(POWER_CSTATE, 1, smp_processor_id());
+	trace_cpu_idle(1, smp_processor_id());
+
+	omap_sram_idle();
+
+	trace_power_end(smp_processor_id());
+	trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
+
+out:
+	local_fiq_enable();
+}
+
+#ifdef CONFIG_SUSPEND
+static int omap3_pm_suspend(void)
+{
+	struct power_state *pwrst;
+	int state, ret = 0;
+
+	/* Read current next_pwrsts */
+	list_for_each_entry(pwrst, &pwrst_list, node)
+		pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm);
+	/* Set ones wanted by suspend */
+	list_for_each_entry(pwrst, &pwrst_list, node) {
+		if (omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state))
+			goto restore;
+		if (pwrdm_clear_all_prev_pwrst(pwrst->pwrdm))
+			goto restore;
+	}
+
+	omap3_intc_suspend();
+
+	omap_sram_idle();
+
+restore:
+	/* Restore next_pwrsts */