From: Thierry Reding <treding@xxxxxxxxxx>
Continuing the scheme of unification, push suspend/resume callbacks into
per-SoC driver so that they can be properly parameterized.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
Changes in v2:
- split ->init callback hunk into separate patch (Krzysztof)
- use SET_SYSTEM_SLEEP_PM_OPS (Dmitry)
drivers/memory/tegra/mc.c | 23 +++++++----------------
drivers/memory/tegra/tegra186.c | 27 +++++++++++++++++++++++----
drivers/memory/tegra/tegra20.c | 28 ++++++++++++++++++++++++++++
include/soc/tegra/mc.h | 2 ++
4 files changed, 60 insertions(+), 20 deletions(-)
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index 559ae1ef5633..a3b7ba33b7f9 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -867,37 +867,28 @@ static int tegra_mc_probe(struct platform_device *pdev)
return 0;
}
-static int tegra_mc_suspend(struct device *dev)
+static int __maybe_unused tegra_mc_suspend(struct device *dev)
{
struct tegra_mc *mc = dev_get_drvdata(dev);
- int err;
- if (IS_ENABLED(CONFIG_TEGRA_IOMMU_GART) && mc->gart) {
- err = tegra_gart_suspend(mc->gart);
- if (err)
- return err;
- }
+ if (mc->soc->ops && mc->soc->ops->suspend)
+ return mc->soc->ops->suspend(mc);
return 0;
}
-static int tegra_mc_resume(struct device *dev)
+static int __maybe_unused tegra_mc_resume(struct device *dev)
{
struct tegra_mc *mc = dev_get_drvdata(dev);
- int err;
- if (IS_ENABLED(CONFIG_TEGRA_IOMMU_GART) && mc->gart) {
- err = tegra_gart_resume(mc->gart);
- if (err)
- return err;
- }
+ if (mc->soc->ops && mc->soc->ops->resume)
+ return mc->soc->ops->resume(mc);
return 0;
}
static const struct dev_pm_ops tegra_mc_pm_ops = {
- .suspend = tegra_mc_suspend,
- .resume = tegra_mc_resume,
+ SET_SYSTEM_SLEEP_PM_OPS(tegra_mc_suspend, tegra_mc_resume)
};
static struct platform_driver tegra_mc_driver = {
diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c
index 8e77567d1378..9d3fdb609d55 100644
--- a/drivers/memory/tegra/tegra186.c
+++ b/drivers/memory/tegra/tegra186.c
@@ -45,6 +45,17 @@ static void tegra186_mc_program_sid(struct tegra_mc *mc)
}
}
+static int tegra186_mc_resume(struct tegra_mc *mc)
+{
+ tegra186_mc_program_sid(mc);
+
+ return 0;
+}
+
+static const struct tegra_mc_ops tegra186_mc_ops = {
+ .resume = tegra186_mc_resume,
+};
+
#if defined(CONFIG_ARCH_TEGRA_186_SOC)
static const struct tegra_mc_client tegra186_mc_clients[] = {
{
@@ -701,6 +712,7 @@ static const struct tegra_mc_client tegra186_mc_clients[] = {
static const struct tegra_mc_soc tegra186_mc_soc = {
.num_clients = ARRAY_SIZE(tegra186_mc_clients),
.clients = tegra186_mc_clients,
+ .ops = &tegra186_mc_ops,
};
#endif
@@ -1909,6 +1921,7 @@ static const struct tegra_mc_client tegra194_mc_clients[] = {
static const struct tegra_mc_soc tegra194_mc_soc = {
.num_clients = ARRAY_SIZE(tegra194_mc_clients),
.clients = tegra194_mc_clients,
+ .ops = &tegra186_mc_ops,
};
#endif
@@ -1961,22 +1974,28 @@ static const struct of_device_id tegra186_mc_of_match[] = {
};
MODULE_DEVICE_TABLE(of, tegra186_mc_of_match);
-static int __maybe_unused tegra186_mc_suspend(struct device *dev)
+static int __maybe_unused tegra_mc_suspend(struct device *dev)
{
+ struct tegra_mc *mc = dev_get_drvdata(dev);
+
+ if (mc->soc->ops && mc->soc->ops->suspend)
+ return mc->soc->ops->suspend(mc);
+
return 0;
}
-static int __maybe_unused tegra186_mc_resume(struct device *dev)
+static int __maybe_unused tegra_mc_resume(struct device *dev)
{
struct tegra_mc *mc = dev_get_drvdata(dev);
- tegra186_mc_program_sid(mc);
+ if (mc->soc->ops && mc->soc->ops->resume)
+ return mc->soc->ops->resume(mc);
return 0;
}
static const struct dev_pm_ops tegra186_mc_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(tegra186_mc_suspend, tegra186_mc_resume)
+ SET_SYSTEM_SLEEP_PM_OPS(tegra_mc_suspend, tegra_mc_resume)
};
static struct platform_driver tegra186_mc_driver = {
diff --git a/drivers/memory/tegra/tegra20.c b/drivers/memory/tegra/tegra20.c
index 3b7b93b96480..a3335ad20f4d 100644
--- a/drivers/memory/tegra/tegra20.c
+++ b/drivers/memory/tegra/tegra20.c
@@ -687,8 +687,36 @@ static int tegra20_mc_init(struct tegra_mc *mc)
return 0;
}
+static int tegra20_mc_suspend(struct tegra_mc *mc)
+{
+ int err;
+
+ if (IS_ENABLED(CONFIG_TEGRA_IOMMU_GART) && mc->gart) {
+ err = tegra_gart_suspend(mc->gart);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int tegra20_mc_resume(struct tegra_mc *mc)
+{
+ int err;
+
+ if (IS_ENABLED(CONFIG_TEGRA_IOMMU_GART) && mc->gart) {
+ err = tegra_gart_resume(mc->gart);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
static const struct tegra_mc_ops tegra20_mc_ops = {
.init = tegra20_mc_init,
+ .suspend = tegra20_mc_suspend,
+ .resume = tegra20_mc_resume,
};
const struct tegra_mc_soc tegra20_mc_soc = {
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index 4f88da907a02..7c49f75087c3 100644
--- a/include/soc/tegra/mc.h
+++ b/include/soc/tegra/mc.h
@@ -171,6 +171,8 @@ struct tegra_mc_icc_ops {
struct tegra_mc_ops {
int (*init)(struct tegra_mc *mc);
+ int (*suspend)(struct tegra_mc *mc);
+ int (*resume)(struct tegra_mc *mc);
};
struct tegra_mc_soc {
--
2.31.1
