Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Not a major amount of change, the i915 trees got split into display
  and gt trees to better facilitate higher level review, and there's a
  major refactoring of i915 GEM locking to use more core kernel concepts
  (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards
  get DC support, nouveau got a bump in displayport support with common
  code extraction from i915.

  Outside of drm this contains a couple of patches for hexint
  moduleparams which you've acked, and a virtio common code tree that
  you should also get via it's regular path.

  New driver:
   - Cadence MHDP8546 DisplayPort bridge driver

  core:
   - cross-driver scatterlist cleanups
   - devm_drm conversions
   - remove drm_dev_init
   - devm_drm_dev_alloc conversion

  ttm:
   - lots of refactoring and cleanups

  bridges:
   - chained bridge support in more drivers

  panel:
   - misc new panels

  scheduler:
   - cleanup priority levels

  displayport:
   - refactor i915 code into helpers for nouveau

  i915:
   - split into display and GT trees
   - WW locking refactoring in GEM
   - execbuf2 extension mechanism
   - syncobj timeline support
   - GEN 12 HOBL display powersaving
   - Rocket Lake display additions
   - Disable FBC on Tigerlake
   - Tigerlake Type-C + DP improvements
   - Hotplug interrupt refactoring

  amdgpu:
   - Sienna Cichlid updates
   - Navy Flounder updates
   - DCE6 (SI) support for DC
   - Plane rotation enabled
   - TMZ state info ioctl
   - PCIe DPC recovery support
   - DC interrupt handling refactor
   - OLED panel fixes

  amdkfd:
   - add SMI events for thermal throttling
   - SMI interface events ioctl update
   - process eviction counters

  radeon:
   - move to dma_ for allocations
   - expose sclk via sysfs

  msm:
   - DSI support for sm8150/sm8250
   - per-process GPU pagetable support
   - Displayport support

  mediatek:
   - move HDMI phy driver to PHY
   - convert mtk-dpi to bridge API
   - disable mt2701 tmds

  tegra:
   - bridge support

  exynos:
   - misc cleanups

  vc4:
   - dual display cleanups

  ast:
   - cleanups

  gma500:
   - conversion to GPIOd API

  hisilicon:
   - misc reworks

  ingenic:
   - clock handling and format improvements

  mcde:
   - DSI support

  mgag200:
   - desktop g200 support

  mxsfb:
   - i.MX7 + i.MX8M
   - alpha plane support

  panfrost:
   - devfreq support
   - amlogic SoC support

  ps8640:
   - EDID from eDP retrieval

  tidss:
   - AM65xx YUV workaround

  virtio:
   - virtio-gpu exported resources

  rcar-du:
   - R8A7742, R8A774E1 and R8A77961 support
   - YUV planar format fixes
   - non-visible plane handling
   - VSP device reference count fix
   - Kconfig fix to avoid displaying disabled options in .config"

* tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits)
  drm/ingenic: Fix bad revert
  drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init
  drm/amdgpu: Remove warning for virtual_display
  drm/amdgpu: kfd_initialized can be static
  drm/amd/pm: setup APU dpm clock table in SMU HW initialization
  drm/amdgpu: prevent spurious warning
  drm/amdgpu/swsmu: fix ARC build errors
  drm/amd/display: Fix OPTC_DATA_FORMAT programming
  drm/amd/display: Don't allow pstate if no support in blank
  drm/panfrost: increase readl_relaxed_poll_timeout values
  MAINTAINERS: Update entry for st7703 driver after the rename
  Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached"
  drm/amd/display: HDMI remote sink need mode validation for Linux
  drm/amd/display: Change to correct unit on audio rate
  drm/amd/display: Avoid set zero in the requested clk
  drm/amdgpu: align frag_end to covered address space
  drm/amdgpu: fix NULL pointer dereference for Renoir
  drm/vmwgfx: fix regression in thp code due to ttm init refactor.
  drm/amdgpu/swsmu: add interrupt work handler for smu11 parts
  drm/amdgpu/swsmu: add interrupt work function
  ...

1 files changed, 325 insertions, 0 deletions

diff --git a/drivers/gpu/drm/imx/dcss/dcss-dev.c b/drivers/gpu/drm/imx/dcss/dcss-dev.c
new file mode 100644
index 000000000000..c849533ca83e
--- /dev/null
+++ b/drivers/gpu/drm/imx/dcss/dcss-dev.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 NXP.
+ */
+
+#include <linux/clk.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <drm/drm_bridge_connector.h>
+#include <drm/drm_device.h>
+#include <drm/drm_modeset_helper.h>
+
+#include "dcss-dev.h"
+#include "dcss-kms.h"
+
+static void dcss_clocks_enable(struct dcss_dev *dcss)
+{
+	clk_prepare_enable(dcss->axi_clk);
+	clk_prepare_enable(dcss->apb_clk);
+	clk_prepare_enable(dcss->rtrm_clk);
+	clk_prepare_enable(dcss->dtrc_clk);
+	clk_prepare_enable(dcss->pix_clk);
+}
+
+static void dcss_clocks_disable(struct dcss_dev *dcss)
+{
+	clk_disable_unprepare(dcss->pix_clk);
+	clk_disable_unprepare(dcss->dtrc_clk);
+	clk_disable_unprepare(dcss->rtrm_clk);
+	clk_disable_unprepare(dcss->apb_clk);
+	clk_disable_unprepare(dcss->axi_clk);
+}
+
+static void dcss_disable_dtg_and_ss_cb(void *data)
+{
+	struct dcss_dev *dcss = data;
+
+	dcss->disable_callback = NULL;
+
+	dcss_ss_shutoff(dcss->ss);
+	dcss_dtg_shutoff(dcss->dtg);
+
+	complete(&dcss->disable_completion);
+}
+
+void dcss_disable_dtg_and_ss(struct dcss_dev *dcss)
+{
+	dcss->disable_callback = dcss_disable_dtg_and_ss_cb;
+}
+
+void dcss_enable_dtg_and_ss(struct dcss_dev *dcss)
+{
+	if (dcss->disable_callback)
+		dcss->disable_callback = NULL;
+
+	dcss_dtg_enable(dcss->dtg);
+	dcss_ss_enable(dcss->ss);
+}
+
+static int dcss_submodules_init(struct dcss_dev *dcss)
+{
+	int ret = 0;
+	u32 base_addr = dcss->start_addr;
+	const struct dcss_type_data *devtype = dcss->devtype;
+
+	dcss_clocks_enable(dcss);
+
+	ret = dcss_blkctl_init(dcss, base_addr + devtype->blkctl_ofs);
+	if (ret)
+		return ret;
+
+	ret = dcss_ctxld_init(dcss, base_addr + devtype->ctxld_ofs);
+	if (ret)
+		goto ctxld_err;
+
+	ret = dcss_dtg_init(dcss, base_addr + devtype->dtg_ofs);
+	if (ret)
+		goto dtg_err;
+
+	ret = dcss_ss_init(dcss, base_addr + devtype->ss_ofs);
+	if (ret)
+		goto ss_err;
+
+	ret = dcss_dpr_init(dcss, base_addr + devtype->dpr_ofs);
+	if (ret)
+		goto dpr_err;
+
+	ret = dcss_scaler_init(dcss, base_addr + devtype->scaler_ofs);
+	if (ret)
+		goto scaler_err;
+
+	dcss_clocks_disable(dcss);
+
+	return 0;
+
+scaler_err:
+	dcss_dpr_exit(dcss->dpr);
+
+dpr_err:
+	dcss_ss_exit(dcss->ss);
+
+ss_err:
+	dcss_dtg_exit(dcss->dtg);
+
+dtg_err:
+	dcss_ctxld_exit(dcss->ctxld);
+
+ctxld_err:
+	dcss_blkctl_exit(dcss->blkctl);
+
+	dcss_clocks_disable(dcss);
+
+	return ret;
+}
+
+static void dcss_submodules_stop(struct dcss_dev *dcss)
+{
+	dcss_clocks_enable(dcss);
+	dcss_scaler_exit(dcss->scaler);
+	dcss_dpr_exit(dcss->dpr);
+	dcss_ss_exit(dcss->ss);
+	dcss_dtg_exit(dcss->dtg);
+	dcss_ctxld_exit(dcss->ctxld);
+	dcss_blkctl_exit(dcss->blkctl);
+	dcss_clocks_disable(dcss);
+}
+
+static int dcss_clks_init(struct dcss_dev *dcss)
+{
+	int i;
+	struct {
+		const char *id;
+		struct clk **clk;
+	} clks[] = {
+		{"apb",   &dcss->apb_clk},
+		{"axi",   &dcss->axi_clk},
+		{"pix",   &dcss->pix_clk},
+		{"rtrm",  &dcss->rtrm_clk},
+		{"dtrc",  &dcss->dtrc_clk},
+	};
+
+	for (i = 0; i < ARRAY_SIZE(clks); i++) {
+		*clks[i].clk = devm_clk_get(dcss->dev, clks[i].id);
+		if (IS_ERR(*clks[i].clk)) {
+			dev_err(dcss->dev, "failed to get %s clock\n",
+				clks[i].id);
+			return PTR_ERR(*clks[i].clk);
+		}
+	}
+
+	return 0;
+}
+
+static void dcss_clks_release(struct dcss_dev *dcss)
+{
+	devm_clk_put(dcss->dev, dcss->dtrc_clk);
+	devm_clk_put(dcss->dev, dcss->rtrm_clk);
+	devm_clk_put(dcss->dev, dcss->pix_clk);
+	devm_clk_put(dcss->dev, dcss->axi_clk);
+	devm_clk_put(dcss->dev, dcss->apb_clk);
+}
+
+struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	int ret;
+	struct resource *res;
+	struct dcss_dev *dcss;
+	const struct dcss_type_data *devtype;
+
+	devtype = of_device_get_match_data(dev);
+	if (!devtype) {
+		dev_err(dev, "no device match found\n");
+		return ERR_PTR(-ENODEV);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "cannot get memory resource\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	dcss = kzalloc(sizeof(*dcss), GFP_KERNEL);
+	if (!dcss)
+		return ERR_PTR(-ENOMEM);
+
+	dcss->dev = dev;
+	dcss->devtype = devtype;
+	dcss->hdmi_output = hdmi_output;
+
+	ret = dcss_clks_init(dcss);
+	if (ret) {
+		dev_err(dev, "clocks initialization failed\n");
+		goto err;
+	}
+
+	dcss->of_port = of_graph_get_port_by_id(dev->of_node, 0);
+	if (!dcss->of_port) {
+		dev_err(dev, "no port@0 node in %s\n", dev->of_node->full_name);
+		ret = -ENODEV;
+		goto clks_err;
+	}
+
+	dcss->start_addr = res->start;
+
+	ret = dcss_submodules_init(dcss);
+	if (ret) {
+		dev_err(dev, "submodules initialization failed\n");
+		goto clks_err;
+	}
+
+	init_completion(&dcss->disable_completion);
+
+	pm_runtime_set_autosuspend_delay(dev, 100);
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_set_suspended(dev);
+	pm_runtime_allow(dev);
+	pm_runtime_enable(dev);
+
+	return dcss;
+
+clks_err:
+	dcss_clks_release(dcss);
+
+err:
+	kfree(dcss);
+
+	return ERR_PTR(ret);
+}
+
+void dcss_dev_destroy(struct dcss_dev *dcss)
+{
+	if (!pm_runtime_suspended(dcss->dev)) {
+		dcss_ctxld_suspend(dcss->ctxld);
+		dcss_clocks_disable(dcss);
+	}
+
+	pm_runtime_disable(dcss->dev);
+
+	dcss_submodules_stop(dcss);
+
+	dcss_clks_release(dcss);
+
+	kfree(dcss);
+}
+
+#ifdef CONFIG_PM_SLEEP
+int dcss_dev_suspend(struct device *dev)
+{
+	struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dev);
+	struct drm_device *ddev = dcss_drv_dev_to_drm(dev);
+	struct dcss_kms_dev *kms = container_of(ddev, struct dcss_kms_dev, base);
+	int ret;
+
+	drm_bridge_connector_disable_hpd(kms->connector);
+
+	drm_mode_config_helper_suspend(ddev);
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	ret = dcss_ctxld_suspend(dcss->ctxld);
+	if (ret)
+		return ret;
+
+	dcss_clocks_disable(dcss);
+
+	return 0;
+}
+
+int dcss_dev_resume(struct device *dev)
+{
+	struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dev);
+	struct drm_device *ddev = dcss_drv_dev_to_drm(dev);
+	struct dcss_kms_dev *kms = container_of(ddev, struct dcss_kms_dev, base);
+
+	if (pm_runtime_suspended(dev)) {
+		drm_mode_config_helper_resume(ddev);
+		return 0;
+	}
+
+	dcss_clocks_enable(dcss);
+
+	dcss_blkctl_cfg(dcss->blkctl);
+
+	dcss_ctxld_resume(dcss->ctxld);
+
+	drm_mode_config_helper_resume(ddev);
+
+	drm_bridge_connector_enable_hpd(kms->connector);
+
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_PM
+int dcss_dev_runtime_suspend(struct device *dev)
+{
+	struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dev);
+	int ret;
+
+	ret = dcss_ctxld_suspend(dcss->ctxld);
+	if (ret)
+		return ret;
+
+	dcss_clocks_disable(dcss);
+
+	return 0;
+}
+
+int dcss_dev_runtime_resume(struct device *dev)
+{
+	struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dev);
+
+	dcss_clocks_enable(dcss);
+
+	dcss_blkctl_cfg(dcss->blkctl);
+
+	dcss_ctxld_resume(dcss->ctxld);
+
+	return 0;
+}
+#endif /* CONFIG_PM */