1 // SPDX-License-Identifier: GPL-2.0+
3 * Actions Semi Owl Smart Power System (SPS) shared helpers
5 * Copyright 2012 Actions Semi Inc.
6 * Author: Actions Semi, Inc.
8 * Copyright (c) 2017 Andreas Färber
11 #include <linux/delay.h>
13 #include <linux/soc/actions/owl-sps.h>
15 #define OWL_SPS_PG_CTL 0x0
17 int owl_sps_set_pg(void __iomem *base, u32 pwr_mask, u32 ack_mask, bool enable)
23 val = readl(base + OWL_SPS_PG_CTL);
33 writel(val, base + OWL_SPS_PG_CTL);
35 for (timeout = 5000; timeout > 0; timeout -= 50) {
36 val = readl(base + OWL_SPS_PG_CTL);
37 if ((val & ack_mask) == (enable ? ack_mask : 0))
48 EXPORT_SYMBOL_GPL(owl_sps_set_pg);