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Message-ID: <20230519060202.15296-4-changhuang.liang@starfivetech.com>
Date: Thu, 18 May 2023 23:02:01 -0700
From: Changhuang Liang <changhuang.liang@...rfivetech.com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor@...nel.org>
CC: Walker Chen <walker.chen@...rfivetech.com>,
Changhuang Liang <changhuang.liang@...rfivetech.com>,
Hal Feng <hal.feng@...rfivetech.com>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 3/4] soc: starfive: Extract JH7110 pmu private operations
Move JH7110 private operation into private data of compatible. Convenient
to add AON PMU which would not have interrupts property.
Signed-off-by: Changhuang Liang <changhuang.liang@...rfivetech.com>
Reviewed-by: Walker Chen <walker.chen@...rfivetech.com>
---
drivers/soc/starfive/jh71xx_pmu.c | 89 +++++++++++++++++++++----------
1 file changed, 62 insertions(+), 27 deletions(-)
diff --git a/drivers/soc/starfive/jh71xx_pmu.c b/drivers/soc/starfive/jh71xx_pmu.c
index 7d5f50d71c0d..0dbdcc0d2c91 100644
--- a/drivers/soc/starfive/jh71xx_pmu.c
+++ b/drivers/soc/starfive/jh71xx_pmu.c
@@ -51,9 +51,17 @@ struct jh71xx_domain_info {
u8 bit;
};
+struct jh71xx_pmu;
+struct jh71xx_pmu_dev;
+
struct jh71xx_pmu_match_data {
const struct jh71xx_domain_info *domain_info;
int num_domains;
+ unsigned int pmu_status;
+ int (*pmu_parse_irq)(struct platform_device *pdev,
+ struct jh71xx_pmu *pmu);
+ int (*pmu_set_state)(struct jh71xx_pmu_dev *pmd,
+ u32 mask, bool on);
};
struct jh71xx_pmu {
@@ -79,12 +87,12 @@ static int jh71xx_pmu_get_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool *is_o
if (!mask)
return -EINVAL;
- *is_on = readl(pmu->base + JH71XX_PMU_CURR_POWER_MODE) & mask;
+ *is_on = readl(pmu->base + pmu->match_data->pmu_status) & mask;
return 0;
}
-static int jh71xx_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool on)
+static int jh7110_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool on)
{
struct jh71xx_pmu *pmu = pmd->pmu;
unsigned long flags;
@@ -92,22 +100,8 @@ static int jh71xx_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool on)
u32 mode;
u32 encourage_lo;
u32 encourage_hi;
- bool is_on;
int ret;
- ret = jh71xx_pmu_get_state(pmd, mask, &is_on);
- if (ret) {
- dev_dbg(pmu->dev, "unable to get current state for %s\n",
- pmd->genpd.name);
- return ret;
- }
-
- if (is_on == on) {
- dev_dbg(pmu->dev, "pm domain [%s] is already %sable status.\n",
- pmd->genpd.name, on ? "en" : "dis");
- return 0;
- }
-
spin_lock_irqsave(&pmu->lock, flags);
/*
@@ -166,6 +160,29 @@ static int jh71xx_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool on)
return 0;
}
+static int jh71xx_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool on)
+{
+ struct jh71xx_pmu *pmu = pmd->pmu;
+ const struct jh71xx_pmu_match_data *match_data = pmu->match_data;
+ bool is_on;
+ int ret;
+
+ ret = jh71xx_pmu_get_state(pmd, mask, &is_on);
+ if (ret) {
+ dev_dbg(pmu->dev, "unable to get current state for %s\n",
+ pmd->genpd.name);
+ return ret;
+ }
+
+ if (is_on == on) {
+ dev_dbg(pmu->dev, "pm domain [%s] is already %sable status.\n",
+ pmd->genpd.name, on ? "en" : "dis");
+ return 0;
+ }
+
+ return match_data->pmu_set_state(pmd, mask, on);
+}
+
static int jh71xx_pmu_on(struct generic_pm_domain *genpd)
{
struct jh71xx_pmu_dev *pmd = container_of(genpd,
@@ -226,6 +243,25 @@ static irqreturn_t jh71xx_pmu_interrupt(int irq, void *data)
return IRQ_HANDLED;
}
+static int jh7110_pmu_parse_irq(struct platform_device *pdev, struct jh71xx_pmu *pmu)
+{
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ pmu->irq = platform_get_irq(pdev, 0);
+ if (pmu->irq < 0)
+ return pmu->irq;
+
+ ret = devm_request_irq(dev, pmu->irq, jh71xx_pmu_interrupt,
+ 0, pdev->name, pmu);
+ if (ret)
+ dev_err(dev, "failed to request irq\n");
+
+ jh71xx_pmu_int_enable(pmu, JH71XX_PMU_INT_ALL_MASK & ~JH71XX_PMU_INT_PCH_FAIL, true);
+
+ return 0;
+}
+
static int jh71xx_pmu_init_domain(struct jh71xx_pmu *pmu, int index)
{
struct jh71xx_pmu_dev *pmd;
@@ -275,19 +311,18 @@ static int jh71xx_pmu_probe(struct platform_device *pdev)
if (IS_ERR(pmu->base))
return PTR_ERR(pmu->base);
- pmu->irq = platform_get_irq(pdev, 0);
- if (pmu->irq < 0)
- return pmu->irq;
-
- ret = devm_request_irq(dev, pmu->irq, jh71xx_pmu_interrupt,
- 0, pdev->name, pmu);
- if (ret)
- dev_err(dev, "failed to request irq\n");
+ spin_lock_init(&pmu->lock);
match_data = of_device_get_match_data(dev);
if (!match_data)
return -EINVAL;
+ ret = match_data->pmu_parse_irq(pdev, pmu);
+ if (ret) {
+ dev_err(dev, "failed to parse irq\n");
+ return ret;
+ }
+
pmu->genpd = devm_kcalloc(dev, match_data->num_domains,
sizeof(struct generic_pm_domain *),
GFP_KERNEL);
@@ -307,9 +342,6 @@ static int jh71xx_pmu_probe(struct platform_device *pdev)
}
}
- spin_lock_init(&pmu->lock);
- jh71xx_pmu_int_enable(pmu, JH71XX_PMU_INT_ALL_MASK & ~JH71XX_PMU_INT_PCH_FAIL, true);
-
ret = of_genpd_add_provider_onecell(np, &pmu->genpd_data);
if (ret) {
dev_err(dev, "failed to register genpd driver: %d\n", ret);
@@ -357,6 +389,9 @@ static const struct jh71xx_domain_info jh7110_power_domains[] = {
static const struct jh71xx_pmu_match_data jh7110_pmu = {
.num_domains = ARRAY_SIZE(jh7110_power_domains),
.domain_info = jh7110_power_domains,
+ .pmu_status = JH71XX_PMU_CURR_POWER_MODE,
+ .pmu_parse_irq = jh7110_pmu_parse_irq,
+ .pmu_set_state = jh7110_pmu_set_state,
};
static const struct of_device_id jh71xx_pmu_of_match[] = {
--
2.25.1
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