static int panfrost_regulator_init(struct panfrost_device *pfdev)
{
- int ret;
+ int ret, i;
- pfdev->regulator = devm_regulator_get(pfdev->dev, "mali");
- if (IS_ERR(pfdev->regulator)) {
- ret = PTR_ERR(pfdev->regulator);
- dev_err(pfdev->dev, "failed to get regulator: %d\n", ret);
+ if (WARN(pfdev->comp->num_supplies > ARRAY_SIZE(pfdev->regulators),
+ "Too many supplies in compatible structure.\n"))
+ return -EINVAL;
+
+ for (i = 0; i < pfdev->comp->num_supplies; i++)
+ pfdev->regulators[i].supply = pfdev->comp->supply_names[i];
+
+ ret = devm_regulator_bulk_get(pfdev->dev,
+ pfdev->comp->num_supplies,
+ pfdev->regulators);
+ if (ret < 0) {
+ dev_err(pfdev->dev, "failed to get regulators: %d\n", ret);
return ret;
}
- ret = regulator_enable(pfdev->regulator);
+ ret = regulator_bulk_enable(pfdev->comp->num_supplies,
+ pfdev->regulators);
if (ret < 0) {
- dev_err(pfdev->dev, "failed to enable regulator: %d\n", ret);
+ dev_err(pfdev->dev, "failed to enable regulators: %d\n", ret);
return ret;
}
static void panfrost_regulator_fini(struct panfrost_device *pfdev)
{
- regulator_disable(pfdev->regulator);
+ regulator_bulk_disable(pfdev->comp->num_supplies,
+ pfdev->regulators);
}
int panfrost_device_init(struct panfrost_device *pfdev)
#include <linux/atomic.h>
#include <linux/io-pgtable.h>
+#include <linux/regulator/consumer.h>
#include <linux/spinlock.h>
#include <drm/drm_device.h>
#include <drm/drm_mm.h>
struct panfrost_perfcnt;
#define NUM_JOB_SLOTS 3
+#define MAX_REGULATORS 2
struct panfrost_features {
u16 id;
unsigned long hw_issues[64 / BITS_PER_LONG];
};
+/*
+ * Features that cannot be automatically detected and need matching using the
+ * compatible string, typically SoC-specific.
+ */
+struct panfrost_compatible {
+ /* Supplies count and names. */
+ int num_supplies;
+ const char * const *supply_names;
+};
+
struct panfrost_device {
struct device *dev;
struct drm_device *ddev;
void __iomem *iomem;
struct clk *clock;
struct clk *bus_clock;
- struct regulator *regulator;
+ struct regulator_bulk_data regulators[MAX_REGULATORS];
struct reset_control *rstc;
struct panfrost_features features;
+ const struct panfrost_compatible *comp;
spinlock_t as_lock;
unsigned long as_in_use_mask;
platform_set_drvdata(pdev, pfdev);
+ pfdev->comp = of_device_get_match_data(&pdev->dev);
+ if (!pfdev->comp)
+ return -ENODEV;
+
/* Allocate and initialze the DRM device. */
ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev);
if (IS_ERR(ddev))
return 0;
}
+const char * const default_supplies[] = { "mali" };
+static const struct panfrost_compatible default_data = {
+ .num_supplies = ARRAY_SIZE(default_supplies),
+ .supply_names = default_supplies,
+};
+
static const struct of_device_id dt_match[] = {
- { .compatible = "arm,mali-t604" },
- { .compatible = "arm,mali-t624" },
- { .compatible = "arm,mali-t628" },
- { .compatible = "arm,mali-t720" },
- { .compatible = "arm,mali-t760" },
- { .compatible = "arm,mali-t820" },
- { .compatible = "arm,mali-t830" },
- { .compatible = "arm,mali-t860" },
- { .compatible = "arm,mali-t880" },
+ { .compatible = "arm,mali-t604", .data = &default_data, },
+ { .compatible = "arm,mali-t624", .data = &default_data, },
+ { .compatible = "arm,mali-t628", .data = &default_data, },
+ { .compatible = "arm,mali-t720", .data = &default_data, },
+ { .compatible = "arm,mali-t760", .data = &default_data, },
+ { .compatible = "arm,mali-t820", .data = &default_data, },
+ { .compatible = "arm,mali-t830", .data = &default_data, },
+ { .compatible = "arm,mali-t860", .data = &default_data, },
+ { .compatible = "arm,mali-t880", .data = &default_data, },
{}
};
MODULE_DEVICE_TABLE(of, dt_match);