soc/rockchip: support the power domains for rk3036 SoCs

The rk3036 SoCs have some domains with NOC idle function, but it can't
turn the power domain off. This patch supports it to handle some devices
for needing.

Change-Id: I515f2cea07f1af1777bb877a5f396fd21caba3ad
Signed-off-by: Caesar Wang <wxt@rock-chips.com>

Author: Caesar-github

drivers/soc/rockchip/pm_domains.c

@@ -19,6 +19,7 @@
 #include <linux/clk.h>
 #include <linux/regmap.h>
 #include <linux/mfd/syscon.h>
+#include <dt-bindings/power/rk3036-power.h>
 #include <dt-bindings/power/rk3128-power.h>
 #include <dt-bindings/power/rk3288-power.h>
 #include <dt-bindings/power/rk3328-power.h>
@@ -109,6 +110,15 @@ static struct rockchip_pmu *dmc_pmu;
 	.active_wakeup = wakeup,			\
 }
 
+#define DOMAIN_RK3036(req, ack, idle, wakeup)		\
+{							\
+	.req_mask = (req >= 0) ? BIT(req) : 0,		\
+	.req_w_mask = (req >= 0) ?  BIT(req + 16) : 0,	\
+	.ack_mask = (ack >= 0) ? BIT(ack) : 0,		\
+	.idle_mask = (idle >= 0) ? BIT(idle) : 0,	\
+	.active_wakeup = wakeup,			\
+}
+
 #define DOMAIN_RK3288(pwr, status, req, wakeup)		\
 	DOMAIN(pwr, status, req, req, (req) + 16, wakeup)
 
@@ -754,6 +764,16 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev)
 	return error;
 }
 
+static const struct rockchip_domain_info rk3036_pm_domains[] = {
+	[RK3036_PD_MSCH]	= DOMAIN_RK3036(14, 23, 30, true),
+	[RK3036_PD_CORE]	= DOMAIN_RK3036(13, 17, 24, false),
+	[RK3036_PD_PERI]	= DOMAIN_RK3036(12, 18, 25, false),
+	[RK3036_PD_VIO]		= DOMAIN_RK3036(11, 19, 26, false),
+	[RK3036_PD_VPU]		= DOMAIN_RK3036(10, 20, 27, false),
+	[RK3036_PD_GPU]		= DOMAIN_RK3036(9, 21, 28, false),
+	[RK3036_PD_SYS]		= DOMAIN_RK3036(8, 22, 29, false),
+};
+
 static const struct rockchip_domain_info rk3128_pm_domains[] = {
 	[RK3128_PD_CORE]	= DOMAIN_RK3288(0, 0, 4, false),
 	[RK3128_PD_MSCH]	= DOMAIN_RK3288(-1, -1, 6, true),
@@ -829,6 +849,15 @@ static const struct rockchip_domain_info rk3399_pm_domains[] = {
 	[RK3399_PD_SDIOAUDIO]	= DOMAIN_RK3399(31, 31, 29, true),
 };
 
+static const struct rockchip_pmu_info rk3036_pmu = {
+	.req_offset = 0x148,
+	.idle_offset = 0x14c,
+	.ack_offset = 0x14c,
+
+	.num_domains = ARRAY_SIZE(rk3036_pm_domains),
+	.domain_info = rk3036_pm_domains,
+};
+
 static const struct rockchip_pmu_info rk3128_pmu = {
 	.pwr_offset = 0x04,
 	.status_offset = 0x08,
@@ -918,6 +947,10 @@ static const struct rockchip_pmu_info rk3399_pmu = {
 };
 
 static const struct of_device_id rockchip_pm_domain_dt_match[] = {
+	{
+		.compatible = "rockchip,rk3036-power-controller",
+		.data = (void *)&rk3036_pmu,
+	},
 	{
 		.compatible = "rockchip,rk3128-power-controller",
 		.data = (void *)&rk3128_pmu,

include/dt-bindings/power/rk3036-power.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2017 Rockchip Electronics Co. Ltd.
+ * Author: Caesar Wang <wxt@rock-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __DT_BINDINGS_POWER_RK3036_POWER_H__
+#define __DT_BINDINGS_POWER_RK3036_POWER_H__
+
+#define RK3036_PD_MSCH		0
+#define RK3036_PD_CORE		1
+#define RK3036_PD_PERI		2
+#define RK3036_PD_VIO		3
+#define RK3036_PD_VPU		4
+#define RK3036_PD_GPU		5
+#define RK3036_PD_SYS		6
+
+#endif