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path: root/drivers/soc/rockchip/pm_domains.c
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Diffstat (limited to 'drivers/soc/rockchip/pm_domains.c')
-rw-r--r--drivers/soc/rockchip/pm_domains.c247
1 files changed, 239 insertions, 8 deletions
diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index 43155e1f9..44842a205 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -19,6 +19,7 @@
#include <linux/mfd/syscon.h>
#include <dt-bindings/power/rk3288-power.h>
#include <dt-bindings/power/rk3368-power.h>
+#include <dt-bindings/power/rk3399-power.h>
struct rockchip_domain_info {
int pwr_mask;
@@ -45,10 +46,20 @@ struct rockchip_pmu_info {
const struct rockchip_domain_info *domain_info;
};
+#define MAX_QOS_REGS_NUM 5
+#define QOS_PRIORITY 0x08
+#define QOS_MODE 0x0c
+#define QOS_BANDWIDTH 0x10
+#define QOS_SATURATION 0x14
+#define QOS_EXTCONTROL 0x18
+
struct rockchip_pm_domain {
struct generic_pm_domain genpd;
const struct rockchip_domain_info *info;
struct rockchip_pmu *pmu;
+ int num_qos;
+ struct regmap **qos_regmap;
+ u32 *qos_save_regs[MAX_QOS_REGS_NUM];
int num_clks;
struct clk *clks[];
};
@@ -66,11 +77,11 @@ struct rockchip_pmu {
#define DOMAIN(pwr, status, req, idle, ack) \
{ \
- .pwr_mask = BIT(pwr), \
- .status_mask = BIT(status), \
- .req_mask = BIT(req), \
- .idle_mask = BIT(idle), \
- .ack_mask = BIT(ack), \
+ .pwr_mask = (pwr >= 0) ? BIT(pwr) : 0, \
+ .status_mask = (status >= 0) ? BIT(status) : 0, \
+ .req_mask = (req >= 0) ? BIT(req) : 0, \
+ .idle_mask = (idle >= 0) ? BIT(idle) : 0, \
+ .ack_mask = (ack >= 0) ? BIT(ack) : 0, \
}
#define DOMAIN_RK3288(pwr, status, req) \
@@ -79,6 +90,9 @@ struct rockchip_pmu {
#define DOMAIN_RK3368(pwr, status, req) \
DOMAIN(pwr, status, req, (req) + 16, req)
+#define DOMAIN_RK3399(pwr, status, req) \
+ DOMAIN(pwr, status, req, req, req)
+
static bool rockchip_pmu_domain_is_idle(struct rockchip_pm_domain *pd)
{
struct rockchip_pmu *pmu = pd->pmu;
@@ -96,6 +110,9 @@ static int rockchip_pmu_set_idle_request(struct rockchip_pm_domain *pd,
struct rockchip_pmu *pmu = pd->pmu;
unsigned int val;
+ if (pd_info->req_mask == 0)
+ return 0;
+
regmap_update_bits(pmu->regmap, pmu->info->req_offset,
pd_info->req_mask, idle ? -1U : 0);
@@ -111,11 +128,64 @@ static int rockchip_pmu_set_idle_request(struct rockchip_pm_domain *pd,
return 0;
}
+static int rockchip_pmu_save_qos(struct rockchip_pm_domain *pd)
+{
+ int i;
+
+ for (i = 0; i < pd->num_qos; i++) {
+ regmap_read(pd->qos_regmap[i],
+ QOS_PRIORITY,
+ &pd->qos_save_regs[0][i]);
+ regmap_read(pd->qos_regmap[i],
+ QOS_MODE,
+ &pd->qos_save_regs[1][i]);
+ regmap_read(pd->qos_regmap[i],
+ QOS_BANDWIDTH,
+ &pd->qos_save_regs[2][i]);
+ regmap_read(pd->qos_regmap[i],
+ QOS_SATURATION,
+ &pd->qos_save_regs[3][i]);
+ regmap_read(pd->qos_regmap[i],
+ QOS_EXTCONTROL,
+ &pd->qos_save_regs[4][i]);
+ }
+ return 0;
+}
+
+static int rockchip_pmu_restore_qos(struct rockchip_pm_domain *pd)
+{
+ int i;
+
+ for (i = 0; i < pd->num_qos; i++) {
+ regmap_write(pd->qos_regmap[i],
+ QOS_PRIORITY,
+ pd->qos_save_regs[0][i]);
+ regmap_write(pd->qos_regmap[i],
+ QOS_MODE,
+ pd->qos_save_regs[1][i]);
+ regmap_write(pd->qos_regmap[i],
+ QOS_BANDWIDTH,
+ pd->qos_save_regs[2][i]);
+ regmap_write(pd->qos_regmap[i],
+ QOS_SATURATION,
+ pd->qos_save_regs[3][i]);
+ regmap_write(pd->qos_regmap[i],
+ QOS_EXTCONTROL,
+ pd->qos_save_regs[4][i]);
+ }
+
+ return 0;
+}
+
static bool rockchip_pmu_domain_is_on(struct rockchip_pm_domain *pd)
{
struct rockchip_pmu *pmu = pd->pmu;
unsigned int val;
+ /* check idle status for idle-only domains */
+ if (pd->info->status_mask == 0)
+ return !rockchip_pmu_domain_is_idle(pd);
+
regmap_read(pmu->regmap, pmu->info->status_offset, &val);
/* 1'b0: power on, 1'b1: power off */
@@ -127,6 +197,9 @@ static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd,
{
struct rockchip_pmu *pmu = pd->pmu;
+ if (pd->info->pwr_mask == 0)
+ return;
+
regmap_update_bits(pmu->regmap, pmu->info->pwr_offset,
pd->info->pwr_mask, on ? 0 : -1U);
@@ -147,7 +220,7 @@ static int rockchip_pd_power(struct rockchip_pm_domain *pd, bool power_on)
clk_enable(pd->clks[i]);
if (!power_on) {
- /* FIXME: add code to save AXI_QOS */
+ rockchip_pmu_save_qos(pd);
/* if powering down, idle request to NIU first */
rockchip_pmu_set_idle_request(pd, true);
@@ -159,7 +232,7 @@ static int rockchip_pd_power(struct rockchip_pm_domain *pd, bool power_on)
/* if powering up, leave idle mode */
rockchip_pmu_set_idle_request(pd, false);
- /* FIXME: add code to restore AXI_QOS */
+ rockchip_pmu_restore_qos(pd);
}
for (i = pd->num_clks - 1; i >= 0; i--)
@@ -227,9 +300,10 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
{
const struct rockchip_domain_info *pd_info;
struct rockchip_pm_domain *pd;
+ struct device_node *qos_node;
struct clk *clk;
int clk_cnt;
- int i;
+ int i, j;
u32 id;
int error;
@@ -289,6 +363,45 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
clk, node->name);
}
+ pd->num_qos = of_count_phandle_with_args(node, "pm_qos",
+ NULL);
+
+ if (pd->num_qos > 0) {
+ pd->qos_regmap = devm_kcalloc(pmu->dev, pd->num_qos,
+ sizeof(*pd->qos_regmap),
+ GFP_KERNEL);
+ if (!pd->qos_regmap) {
+ error = -ENOMEM;
+ goto err_out;
+ }
+
+ for (j = 0; j < MAX_QOS_REGS_NUM; j++) {
+ pd->qos_save_regs[j] = devm_kcalloc(pmu->dev,
+ pd->num_qos,
+ sizeof(u32),
+ GFP_KERNEL);
+ if (!pd->qos_save_regs[j]) {
+ error = -ENOMEM;
+ goto err_out;
+ }
+ }
+
+ for (j = 0; j < pd->num_qos; j++) {
+ qos_node = of_parse_phandle(node, "pm_qos", j);
+ if (!qos_node) {
+ error = -ENODEV;
+ goto err_out;
+ }
+ pd->qos_regmap[j] = syscon_node_to_regmap(qos_node);
+ if (IS_ERR(pd->qos_regmap[j])) {
+ error = -ENODEV;
+ of_node_put(qos_node);
+ goto err_out;
+ }
+ of_node_put(qos_node);
+ }
+ }
+
error = rockchip_pd_power(pd, true);
if (error) {
dev_err(pmu->dev,
@@ -360,6 +473,61 @@ static void rockchip_configure_pd_cnt(struct rockchip_pmu *pmu,
regmap_write(pmu->regmap, domain_reg_offset + 4, count);
}
+static int rockchip_pm_add_subdomain(struct rockchip_pmu *pmu,
+ struct device_node *parent)
+{
+ struct device_node *np;
+ struct generic_pm_domain *child_domain, *parent_domain;
+ int error;
+
+ for_each_child_of_node(parent, np) {
+ u32 idx;
+
+ error = of_property_read_u32(parent, "reg", &idx);
+ if (error) {
+ dev_err(pmu->dev,
+ "%s: failed to retrieve domain id (reg): %d\n",
+ parent->name, error);
+ goto err_out;
+ }
+ parent_domain = pmu->genpd_data.domains[idx];
+
+ error = rockchip_pm_add_one_domain(pmu, np);
+ if (error) {
+ dev_err(pmu->dev, "failed to handle node %s: %d\n",
+ np->name, error);
+ goto err_out;
+ }
+
+ error = of_property_read_u32(np, "reg", &idx);
+ if (error) {
+ dev_err(pmu->dev,
+ "%s: failed to retrieve domain id (reg): %d\n",
+ np->name, error);
+ goto err_out;
+ }
+ child_domain = pmu->genpd_data.domains[idx];
+
+ error = pm_genpd_add_subdomain(parent_domain, child_domain);
+ if (error) {
+ dev_err(pmu->dev, "%s failed to add subdomain %s: %d\n",
+ parent_domain->name, child_domain->name, error);
+ goto err_out;
+ } else {
+ dev_dbg(pmu->dev, "%s add subdomain: %s\n",
+ parent_domain->name, child_domain->name);
+ }
+
+ rockchip_pm_add_subdomain(pmu, np);
+ }
+
+ return 0;
+
+err_out:
+ of_node_put(np);
+ return error;
+}
+
static int rockchip_pm_domain_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -406,6 +574,10 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev)
}
pmu->regmap = syscon_node_to_regmap(parent->of_node);
+ if (IS_ERR(pmu->regmap)) {
+ dev_err(dev, "no regmap available\n");
+ return PTR_ERR(pmu->regmap);
+ }
/*
* Configure power up and down transition delays for CORE
@@ -426,6 +598,14 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev)
of_node_put(node);
goto err_out;
}
+
+ error = rockchip_pm_add_subdomain(pmu, node);
+ if (error < 0) {
+ dev_err(dev, "failed to handle subdomain node %s: %d\n",
+ node->name, error);
+ of_node_put(node);
+ goto err_out;
+ }
}
if (error) {
@@ -457,6 +637,36 @@ static const struct rockchip_domain_info rk3368_pm_domains[] = {
[RK3368_PD_GPU_1] = DOMAIN_RK3368(17, 16, 2),
};
+static const struct rockchip_domain_info rk3399_pm_domains[] = {
+ [RK3399_PD_TCPD0] = DOMAIN_RK3399(8, 8, -1),
+ [RK3399_PD_TCPD1] = DOMAIN_RK3399(9, 9, -1),
+ [RK3399_PD_CCI] = DOMAIN_RK3399(10, 10, -1),
+ [RK3399_PD_CCI0] = DOMAIN_RK3399(-1, -1, 15),
+ [RK3399_PD_CCI1] = DOMAIN_RK3399(-1, -1, 16),
+ [RK3399_PD_PERILP] = DOMAIN_RK3399(11, 11, 1),
+ [RK3399_PD_PERIHP] = DOMAIN_RK3399(12, 12, 2),
+ [RK3399_PD_CENTER] = DOMAIN_RK3399(13, 13, 14),
+ [RK3399_PD_VIO] = DOMAIN_RK3399(14, 14, 17),
+ [RK3399_PD_GPU] = DOMAIN_RK3399(15, 15, 0),
+ [RK3399_PD_VCODEC] = DOMAIN_RK3399(16, 16, 3),
+ [RK3399_PD_VDU] = DOMAIN_RK3399(17, 17, 4),
+ [RK3399_PD_RGA] = DOMAIN_RK3399(18, 18, 5),
+ [RK3399_PD_IEP] = DOMAIN_RK3399(19, 19, 6),
+ [RK3399_PD_VO] = DOMAIN_RK3399(20, 20, -1),
+ [RK3399_PD_VOPB] = DOMAIN_RK3399(-1, -1, 7),
+ [RK3399_PD_VOPL] = DOMAIN_RK3399(-1, -1, 8),
+ [RK3399_PD_ISP0] = DOMAIN_RK3399(22, 22, 9),
+ [RK3399_PD_ISP1] = DOMAIN_RK3399(23, 23, 10),
+ [RK3399_PD_HDCP] = DOMAIN_RK3399(24, 24, 11),
+ [RK3399_PD_GMAC] = DOMAIN_RK3399(25, 25, 23),
+ [RK3399_PD_EMMC] = DOMAIN_RK3399(26, 26, 24),
+ [RK3399_PD_USB3] = DOMAIN_RK3399(27, 27, 12),
+ [RK3399_PD_EDP] = DOMAIN_RK3399(28, 28, 22),
+ [RK3399_PD_GIC] = DOMAIN_RK3399(29, 29, 27),
+ [RK3399_PD_SD] = DOMAIN_RK3399(30, 30, 28),
+ [RK3399_PD_SDIOAUDIO] = DOMAIN_RK3399(31, 31, 29),
+};
+
static const struct rockchip_pmu_info rk3288_pmu = {
.pwr_offset = 0x08,
.status_offset = 0x0c,
@@ -491,6 +701,23 @@ static const struct rockchip_pmu_info rk3368_pmu = {
.domain_info = rk3368_pm_domains,
};
+static const struct rockchip_pmu_info rk3399_pmu = {
+ .pwr_offset = 0x14,
+ .status_offset = 0x18,
+ .req_offset = 0x60,
+ .idle_offset = 0x64,
+ .ack_offset = 0x68,
+
+ .core_pwrcnt_offset = 0x9c,
+ .gpu_pwrcnt_offset = 0xa4,
+
+ .core_power_transition_time = 24,
+ .gpu_power_transition_time = 24,
+
+ .num_domains = ARRAY_SIZE(rk3399_pm_domains),
+ .domain_info = rk3399_pm_domains,
+};
+
static const struct of_device_id rockchip_pm_domain_dt_match[] = {
{
.compatible = "rockchip,rk3288-power-controller",
@@ -500,6 +727,10 @@ static const struct of_device_id rockchip_pm_domain_dt_match[] = {
.compatible = "rockchip,rk3368-power-controller",
.data = (void *)&rk3368_pmu,
},
+ {
+ .compatible = "rockchip,rk3399-power-controller",
+ .data = (void *)&rk3399_pmu,
+ },
{ /* sentinel */ },
};
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-21 23:14:32 +0000