* option) any later version.
*/
+#include <linux/pm_runtime.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
return -ENOMEM;
INIT_LIST_HEAD(&private->pageflip_event_list);
+ dev_set_drvdata(dev->dev, dev);
dev->dev_private = (void *)private;
/*
.mmap = exynos_drm_gem_mmap_buffer,
};
+static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
+{
+ struct drm_connector *connector;
+
+ drm_modeset_lock_all(dev);
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ int old_dpms = connector->dpms;
+
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
+
+ /* Set the old mode back to the connector for resume */
+ connector->dpms = old_dpms;
+ }
+ drm_modeset_unlock_all(dev);
+
+ return 0;
+}
+
+static int exynos_drm_resume(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+
+ drm_modeset_lock_all(dev);
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, connector->dpms);
+ }
+
+ drm_helper_resume_force_mode(dev);
+ drm_modeset_unlock_all(dev);
+
+ return 0;
+}
+
static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
{
struct drm_exynos_file_private *file_priv;
DRIVER_GEM | DRIVER_PRIME,
.load = exynos_drm_load,
.unload = exynos_drm_unload,
+ .suspend = exynos_drm_suspend,
+ .resume = exynos_drm_resume,
.open = exynos_drm_open,
.preclose = exynos_drm_preclose,
.lastclose = exynos_drm_lastclose,
if (ret)
return ret;
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+
return drm_platform_init(&exynos_drm_driver, pdev);
}
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int exynos_drm_sys_suspend(struct device *dev)
+{
+ struct drm_device *drm_dev = dev_get_drvdata(dev);
+ pm_message_t message;
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ message.event = PM_EVENT_SUSPEND;
+ return exynos_drm_suspend(drm_dev, message);
+}
+
+static int exynos_drm_sys_resume(struct device *dev)
+{
+ struct drm_device *drm_dev = dev_get_drvdata(dev);
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ return exynos_drm_resume(drm_dev);
+}
+#endif
+
+#ifdef CONFIG_PM_RUNTIME
+static int exynos_drm_runtime_suspend(struct device *dev)
+{
+ struct drm_device *drm_dev = dev_get_drvdata(dev);
+ pm_message_t message;
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ message.event = PM_EVENT_SUSPEND;
+ return exynos_drm_suspend(drm_dev, message);
+}
+
+static int exynos_drm_runtime_resume(struct device *dev)
+{
+ struct drm_device *drm_dev = dev_get_drvdata(dev);
+
+ if (!pm_runtime_suspended(dev))
+ return 0;
+
+ return exynos_drm_resume(drm_dev);
+}
+#endif
+
+static const struct dev_pm_ops exynos_drm_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
+ SET_RUNTIME_PM_OPS(exynos_drm_runtime_suspend,
+ exynos_drm_runtime_resume, NULL)
+};
+
static struct platform_driver exynos_drm_platform_driver = {
.probe = exynos_drm_platform_probe,
.remove = exynos_drm_platform_remove,
.driver = {
.owner = THIS_MODULE,
.name = "exynos-drm",
+ .pm = &exynos_drm_pm_ops,
},
};
ctx->suspended = false;
+ pm_runtime_get_sync(ctx->dev);
+
ret = clk_prepare_enable(ctx->bus_clk);
if (ret < 0) {
DRM_ERROR("Failed to prepare_enable the bus clk [%d]\n", ret);
clk_disable_unprepare(ctx->lcd_clk);
clk_disable_unprepare(ctx->bus_clk);
+ pm_runtime_put_sync(ctx->dev);
+
ctx->suspended = true;
return 0;
}
static void fimd_dpms(struct exynos_drm_manager *mgr, int mode)
{
- struct fimd_context *ctx = mgr->ctx;
-
- DRM_DEBUG_KMS("%d\n", mode);
+ DRM_DEBUG_KMS("%s, %d\n", __FILE__, mode);
switch (mode) {
case DRM_MODE_DPMS_ON:
- /*
- * enable fimd hardware only if suspended status.
- *
- * P.S. fimd_dpms function would be called at booting time so
- * clk_enable could be called double time.
- */
- if (ctx->suspended)
- pm_runtime_get_sync(ctx->dev);
+ fimd_poweron(mgr);
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
- if (!ctx->suspended)
- pm_runtime_put_sync(ctx->dev);
+ fimd_poweroff(mgr);
break;
default:
DRM_DEBUG_KMS("unspecified mode %d\n", mode);
exynos_drm_manager_register(&fimd_manager);
pm_runtime_enable(dev);
- pm_runtime_get_sync(dev);
for (win = 0; win < WINDOWS_NR; win++)
fimd_clear_win(ctx, win);
static int fimd_remove(struct platform_device *pdev)
{
- struct device *dev = &pdev->dev;
struct exynos_drm_manager *mgr = platform_get_drvdata(pdev);
- struct fimd_context *ctx = mgr->ctx;
exynos_drm_manager_unregister(&fimd_manager);
- if (ctx->suspended)
- goto out;
-
- pm_runtime_set_suspended(dev);
- pm_runtime_put_sync(dev);
+ fimd_dpms(mgr, DRM_MODE_DPMS_OFF);
-out:
- pm_runtime_disable(dev);
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int fimd_suspend(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_fimd_manager(dev);
-
- /*
- * do not use pm_runtime_suspend(). if pm_runtime_suspend() is
- * called here, an error would be returned by that interface
- * because the usage_count of pm runtime is more than 1.
- */
- if (!pm_runtime_suspended(dev))
- return fimd_poweroff(mgr);
+ pm_runtime_disable(&pdev->dev);
return 0;
}
-static int fimd_resume(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_fimd_manager(dev);
-
- /*
- * if entered to sleep when lcd panel was on, the usage_count
- * of pm runtime would still be 1 so in this case, fimd driver
- * should be on directly not drawing on pm runtime interface.
- */
- if (pm_runtime_suspended(dev))
- return 0;
-
- return fimd_poweron(mgr);
-}
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-static int fimd_runtime_suspend(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_fimd_manager(dev);
-
- return fimd_poweroff(mgr);
-}
-
-static int fimd_runtime_resume(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_fimd_manager(dev);
-
- return fimd_poweron(mgr);
-}
-#endif
-
-static const struct dev_pm_ops fimd_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(fimd_suspend, fimd_resume)
- SET_RUNTIME_PM_OPS(fimd_runtime_suspend, fimd_runtime_resume, NULL)
-};
-
struct platform_driver fimd_driver = {
.probe = fimd_probe,
.remove = fimd_remove,
.driver = {
.name = "exynos4-fb",
.owner = THIS_MODULE,
- .pm = &fimd_pm_ops,
.of_match_table = fimd_driver_dt_match,
},
};
.ops = &vidi_display_ops,
};
-static void vidi_dpms(struct exynos_drm_manager *mgr, int mode)
-{
- struct vidi_context *ctx = mgr->ctx;
-
- DRM_DEBUG_KMS("%d\n", mode);
-
- mutex_lock(&ctx->lock);
-
- switch (mode) {
- case DRM_MODE_DPMS_ON:
- /* TODO. */
- break;
- case DRM_MODE_DPMS_STANDBY:
- case DRM_MODE_DPMS_SUSPEND:
- case DRM_MODE_DPMS_OFF:
- /* TODO. */
- break;
- default:
- DRM_DEBUG_KMS("unspecified mode %d\n", mode);
- break;
- }
-
- mutex_unlock(&ctx->lock);
-}
-
static void vidi_apply(struct exynos_drm_manager *mgr)
{
struct vidi_context *ctx = mgr->ctx;
/* TODO. */
}
+static int vidi_power_on(struct exynos_drm_manager *mgr, bool enable)
+{
+ struct vidi_context *ctx = mgr->ctx;
+
+ DRM_DEBUG_KMS("%s\n", __FILE__);
+
+ if (enable != false && enable != true)
+ return -EINVAL;
+
+ if (enable) {
+ ctx->suspended = false;
+
+ /* if vblank was enabled status, enable it again. */
+ if (test_and_clear_bit(0, &ctx->irq_flags))
+ vidi_enable_vblank(mgr);
+
+ vidi_apply(mgr);
+ } else {
+ ctx->suspended = true;
+ }
+
+ return 0;
+}
+
+static void vidi_dpms(struct exynos_drm_manager *mgr, int mode)
+{
+ struct vidi_context *ctx = mgr->ctx;
+
+ DRM_DEBUG_KMS("%d\n", mode);
+
+ mutex_lock(&ctx->lock);
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ vidi_power_on(mgr, true);
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ vidi_power_on(mgr, false);
+ break;
+ default:
+ DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+ break;
+ }
+
+ mutex_unlock(&ctx->lock);
+}
+
static int vidi_mgr_initialize(struct exynos_drm_manager *mgr,
struct drm_device *drm_dev, int pipe)
{
exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe);
}
-static int vidi_power_on(struct exynos_drm_manager *mgr, bool enable)
-{
- struct vidi_context *ctx = mgr->ctx;
-
- DRM_DEBUG_KMS("%s\n", __FILE__);
-
- if (enable != false && enable != true)
- return -EINVAL;
-
- if (enable) {
- ctx->suspended = false;
-
- /* if vblank was enabled status, enable it again. */
- if (test_and_clear_bit(0, &ctx->irq_flags))
- vidi_enable_vblank(mgr);
-
- vidi_apply(mgr);
- } else {
- ctx->suspended = true;
- }
-
- return 0;
-}
-
static int vidi_show_connection(struct device *dev,
struct device_attribute *attr, char *buf)
{
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int vidi_suspend(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_vidi_mgr(dev);
-
- return vidi_power_on(mgr, false);
-}
-
-static int vidi_resume(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_vidi_mgr(dev);
-
- return vidi_power_on(mgr, true);
-}
-#endif
-
-static const struct dev_pm_ops vidi_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(vidi_suspend, vidi_resume)
-};
-
struct platform_driver vidi_driver = {
.probe = vidi_probe,
.remove = vidi_remove,
.driver = {
.name = "exynos-drm-vidi",
.owner = THIS_MODULE,
- .pm = &vidi_pm_ops,
},
};
mutex_unlock(&hdata->hdmi_mutex);
+ pm_runtime_get_sync(hdata->dev);
+
if (regulator_bulk_enable(res->regul_count, res->regul_bulk))
DRM_DEBUG_KMS("failed to enable regulator bulk\n");
clk_disable_unprepare(res->hdmiphy);
regulator_bulk_disable(res->regul_count, res->regul_bulk);
- mutex_lock(&hdata->hdmi_mutex);
+ pm_runtime_put_sync(hdata->dev);
+ mutex_lock(&hdata->hdmi_mutex);
hdata->powered = false;
out:
static void hdmi_dpms(struct exynos_drm_display *display, int mode)
{
- struct hdmi_context *hdata = display->ctx;
-
DRM_DEBUG_KMS("mode %d\n", mode);
switch (mode) {
case DRM_MODE_DPMS_ON:
- if (pm_runtime_suspended(hdata->dev))
- pm_runtime_get_sync(hdata->dev);
+ hdmi_poweron(display);
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
- if (!pm_runtime_suspended(hdata->dev))
- pm_runtime_put_sync(hdata->dev);
+ hdmi_poweroff(display);
break;
default:
DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
goto err_hdmiphy;
}
+ pm_runtime_enable(dev);
+
hdmi_display.ctx = hdata;
exynos_drm_display_register(&hdmi_display);
- pm_runtime_enable(dev);
-
return 0;
err_hdmiphy:
struct exynos_drm_display *display = get_hdmi_display(dev);
struct hdmi_context *hdata = display->ctx;
- pm_runtime_disable(dev);
-
put_device(&hdata->hdmiphy_port->dev);
put_device(&hdata->ddc_port->dev);
+ pm_runtime_disable(&pdev->dev);
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int hdmi_suspend(struct device *dev)
-{
- struct exynos_drm_display *display = get_hdmi_display(dev);
- struct hdmi_context *hdata = display->ctx;
-
- disable_irq(hdata->irq);
-
- hdata->hpd = false;
- if (hdata->drm_dev)
- drm_helper_hpd_irq_event(hdata->drm_dev);
-
- if (pm_runtime_suspended(dev)) {
- DRM_DEBUG_KMS("Already suspended\n");
- return 0;
- }
-
- hdmi_poweroff(display);
-
- return 0;
-}
-
-static int hdmi_resume(struct device *dev)
-{
- struct exynos_drm_display *display = get_hdmi_display(dev);
- struct hdmi_context *hdata = display->ctx;
-
- hdata->hpd = gpio_get_value(hdata->hpd_gpio);
-
- enable_irq(hdata->irq);
-
- if (!pm_runtime_suspended(dev)) {
- DRM_DEBUG_KMS("Already resumed\n");
- return 0;
- }
-
- hdmi_poweron(display);
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-static int hdmi_runtime_suspend(struct device *dev)
-{
- struct exynos_drm_display *display = get_hdmi_display(dev);
-
- hdmi_poweroff(display);
-
- return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
- struct exynos_drm_display *display = get_hdmi_display(dev);
-
- hdmi_poweron(display);
-
- return 0;
-}
-#endif
-
-static const struct dev_pm_ops hdmi_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(hdmi_suspend, hdmi_resume)
- SET_RUNTIME_PM_OPS(hdmi_runtime_suspend, hdmi_runtime_resume, NULL)
-};
-
struct platform_driver hdmi_driver = {
.probe = hdmi_probe,
.remove = hdmi_remove,
.driver = {
.name = "exynos-hdmi",
.owner = THIS_MODULE,
- .pm = &hdmi_pm_ops,
.of_match_table = hdmi_match_types,
},
};
ctx->powered = true;
mutex_unlock(&ctx->mixer_mutex);
+ pm_runtime_get_sync(ctx->dev);
+
clk_prepare_enable(res->mixer);
if (ctx->vp_enabled) {
clk_prepare_enable(res->vp);
clk_disable_unprepare(res->sclk_mixer);
}
+ pm_runtime_put_sync(ctx->dev);
+
mutex_lock(&ctx->mixer_mutex);
ctx->powered = false;
static void mixer_dpms(struct exynos_drm_manager *mgr, int mode)
{
- struct mixer_context *mixer_ctx = mgr->ctx;
-
switch (mode) {
case DRM_MODE_DPMS_ON:
- if (pm_runtime_suspended(mixer_ctx->dev))
- pm_runtime_get_sync(mixer_ctx->dev);
+ mixer_poweron(mgr);
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
- if (!pm_runtime_suspended(mixer_ctx->dev))
- pm_runtime_put_sync(mixer_ctx->dev);
+ mixer_poweroff(mgr);
break;
default:
DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int mixer_suspend(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_mixer_manager(dev);
-
- if (pm_runtime_suspended(dev)) {
- DRM_DEBUG_KMS("Already suspended\n");
- return 0;
- }
-
- mixer_poweroff(mgr);
-
- return 0;
-}
-
-static int mixer_resume(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_mixer_manager(dev);
-
- if (!pm_runtime_suspended(dev)) {
- DRM_DEBUG_KMS("Already resumed\n");
- return 0;
- }
-
- mixer_poweron(mgr);
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-static int mixer_runtime_suspend(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_mixer_manager(dev);
-
- mixer_poweroff(mgr);
-
- return 0;
-}
-
-static int mixer_runtime_resume(struct device *dev)
-{
- struct exynos_drm_manager *mgr = get_mixer_manager(dev);
-
- mixer_poweron(mgr);
-
- return 0;
-}
-#endif
-
-static const struct dev_pm_ops mixer_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(mixer_suspend, mixer_resume)
- SET_RUNTIME_PM_OPS(mixer_runtime_suspend, mixer_runtime_resume, NULL)
-};
-
struct platform_driver mixer_driver = {
.driver = {
.name = "exynos-mixer",
.owner = THIS_MODULE,
- .pm = &mixer_pm_ops,
.of_match_table = mixer_match_types,
},
.probe = mixer_probe,
projects / linux-2.6-microblaze.git / commitdiff