Merge tag 'drm-misc-next-2023-09-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.7-rc1:

UAPI Changes:
- drm_file owner is now updated during use, in the case of a drm fd
  opened by the display server for a client, the correct owner is
  displayed.
- Qaic gains support for the QAIC_DETACH_SLICE_BO ioctl to allow bo
  recycling.

Cross-subsystem Changes:
- Disable boot logo for au1200fb, mmpfb and unexport logo helpers.
  Only fbcon should manage display of logo.
- Update freescale in MAINTAINERS.
- Add some bridge files to bridge in MAINTAINERS.
- Update gma500 driver repo in MAINTAINERS to point to drm-misc.

Core Changes:
- Move size computations to drm buddy allocator.
- Make drm_atomic_helper_shutdown(NULL) a nop.
- Assorted small fixes in drm_debugfs, DP-MST payload addition error handling.
- Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR handling.
- Handle bad (h/v)sync_end in EDID by clipping to htotal.
- Build GPUVM as a module.

Driver Changes:
- Simple drivers don't need to cache prepared result.
- Call drm_atomic_helper_shutdown() in shutdown/unbind for a whole lot
  more drm drivers.
- Assorted small fixes in amdgpu, ssd130x, bridge/it6621, accel/qaic,
  nouveau, tc358768.
- Add NV12 for komeda writeback.
- Add arbitration lost event to synopsis/dw-hdmi-cec.
- Speed up s/r in nouveau by not restoring some big bo's.
- Assorted nouveau display rework in preparation for GSP-RM,
  especially related to how the modeset sequence works and
  the DP sequence in relation to link training.
- Update anx7816 panel.
- Support NVSYNC and NHSYNC in tegra.
- Allow multiple power domains in simple driver.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f1fae5eb-25b8-192a-9a53-215e1184ce81@linux.intel.com

3 files changed, 117 insertions, 0 deletions

diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index d254679a136e..c23c9f0cf49c 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -690,6 +690,11 @@ static void bochs_pci_remove(struct pci_dev *pdev)
 	drm_dev_put(dev);
 }
 
+static void bochs_pci_shutdown(struct pci_dev *pdev)
+{
+	drm_atomic_helper_shutdown(pci_get_drvdata(pdev));
+}
+
 static const struct pci_device_id bochs_pci_tbl[] = {
 	{
 		.vendor      = 0x1234,
@@ -720,6 +725,7 @@ static struct pci_driver bochs_pci_driver = {
 	.id_table =	bochs_pci_tbl,
 	.probe =	bochs_pci_probe,
 	.remove =	bochs_pci_remove,
+	.shutdown =	bochs_pci_shutdown,
 	.driver.pm =    &bochs_pm_ops,
 };
 
diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index 594bc472862f..c5c34cd2edc1 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -727,6 +727,11 @@ static void cirrus_pci_remove(struct pci_dev *pdev)
 	drm_atomic_helper_shutdown(dev);
 }
 
+static void cirrus_pci_shutdown(struct pci_dev *pdev)
+{
+	drm_atomic_helper_shutdown(pci_get_drvdata(pdev));
+}
+
 static const struct pci_device_id pciidlist[] = {
 	{
 		.vendor    = PCI_VENDOR_ID_CIRRUS,
@@ -748,6 +753,7 @@ static struct pci_driver cirrus_pci_driver = {
 	.id_table = pciidlist,
 	.probe = cirrus_pci_probe,
 	.remove = cirrus_pci_remove,
+	.shutdown = cirrus_pci_shutdown,
 };
 
 drm_module_pci_driver(cirrus_pci_driver)
diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index ff86ba1ae1b8..9c597461d1e2 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -6,6 +6,7 @@
 #include <linux/of_address.h>
 #include <linux/platform_data/simplefb.h>
 #include <linux/platform_device.h>
+#include <linux/pm_domain.h>
 #include <linux/regulator/consumer.h>
 
 #include <drm/drm_aperture.h>
@@ -227,6 +228,12 @@ struct simpledrm_device {
 	unsigned int regulator_count;
 	struct regulator **regulators;
 #endif
+	/* power-domains */
+#if defined CONFIG_OF && defined CONFIG_PM_GENERIC_DOMAINS
+	int pwr_dom_count;
+	struct device **pwr_dom_devs;
+	struct device_link **pwr_dom_links;
+#endif
 
 	/* simplefb settings */
 	struct drm_display_mode mode;
@@ -468,6 +475,101 @@ static int simpledrm_device_init_regulators(struct simpledrm_device *sdev)
 }
 #endif
 
+#if defined CONFIG_OF && defined CONFIG_PM_GENERIC_DOMAINS
+/*
+ * Generic power domain handling code.
+ *
+ * Here we handle the power-domains properties of our "simple-framebuffer"
+ * dt node. This is only necessary if there is more than one power-domain.
+ * A single power-domains is handled automatically by the driver core. Multiple
+ * power-domains have to be handled by drivers since the driver core can't know
+ * the correct power sequencing. Power sequencing is not an issue for simpledrm
+ * since the bootloader has put the power domains already in the correct state.
+ * simpledrm has only to ensure they remain active for its lifetime.
+ *
+ * When the driver unloads, we detach from the power-domains.
+ *
+ * We only complain about errors here, no action is taken as the most likely
+ * error can only happen due to a mismatch between the bootloader which set
+ * up the "simple-framebuffer" dt node, and the PM domain providers in the
+ * device tree. Chances are that there are no adverse effects, and if there are,
+ * a clean teardown of the fb probe will not help us much either. So just
+ * complain and carry on, and hope that the user actually gets a working fb at
+ * the end of things.
+ */
+static void simpledrm_device_detach_genpd(void *res)
+{
+	int i;
+	struct simpledrm_device *sdev = res;
+
+	if (sdev->pwr_dom_count <= 1)
+		return;
+
+	for (i = sdev->pwr_dom_count - 1; i >= 0; i--) {
+		if (!sdev->pwr_dom_links[i])
+			device_link_del(sdev->pwr_dom_links[i]);
+		if (!IS_ERR_OR_NULL(sdev->pwr_dom_devs[i]))
+			dev_pm_domain_detach(sdev->pwr_dom_devs[i], true);
+	}
+}
+
+static int simpledrm_device_attach_genpd(struct simpledrm_device *sdev)
+{
+	struct device *dev = sdev->dev.dev;
+	int i;
+
+	sdev->pwr_dom_count = of_count_phandle_with_args(dev->of_node, "power-domains",
+							 "#power-domain-cells");
+	/*
+	 * Single power-domain devices are handled by driver core nothing to do
+	 * here. The same for device nodes without "power-domains" property.
+	 */
+	if (sdev->pwr_dom_count <= 1)
+		return 0;
+
+	sdev->pwr_dom_devs = devm_kcalloc(dev, sdev->pwr_dom_count,
+					       sizeof(*sdev->pwr_dom_devs),
+					       GFP_KERNEL);
+	if (!sdev->pwr_dom_devs)
+		return -ENOMEM;
+
+	sdev->pwr_dom_links = devm_kcalloc(dev, sdev->pwr_dom_count,
+						sizeof(*sdev->pwr_dom_links),
+						GFP_KERNEL);
+	if (!sdev->pwr_dom_links)
+		return -ENOMEM;
+
+	for (i = 0; i < sdev->pwr_dom_count; i++) {
+		sdev->pwr_dom_devs[i] = dev_pm_domain_attach_by_id(dev, i);
+		if (IS_ERR(sdev->pwr_dom_devs[i])) {
+			int ret = PTR_ERR(sdev->pwr_dom_devs[i]);
+			if (ret == -EPROBE_DEFER) {
+				simpledrm_device_detach_genpd(sdev);
+				return ret;
+			}
+			drm_warn(&sdev->dev,
+				 "pm_domain_attach_by_id(%u) failed: %d\n", i, ret);
+			continue;
+		}
+
+		sdev->pwr_dom_links[i] = device_link_add(dev,
+							 sdev->pwr_dom_devs[i],
+							 DL_FLAG_STATELESS |
+							 DL_FLAG_PM_RUNTIME |
+							 DL_FLAG_RPM_ACTIVE);
+		if (!sdev->pwr_dom_links[i])
+			drm_warn(&sdev->dev, "failed to link power-domain %d\n", i);
+	}
+
+	return devm_add_action_or_reset(dev, simpledrm_device_detach_genpd, sdev);
+}
+#else
+static int simpledrm_device_attach_genpd(struct simpledrm_device *sdev)
+{
+	return 0;
+}
+#endif
+
 /*
  * Modesetting
  */
@@ -653,6 +755,9 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
 	ret = simpledrm_device_init_regulators(sdev);
 	if (ret)
 		return ERR_PTR(ret);
+	ret = simpledrm_device_attach_genpd(sdev);
+	if (ret)
+		return ERR_PTR(ret);
 
 	if (pd) {
 		width = simplefb_get_width_pd(dev, pd);