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, 139 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c
new file mode 100644
index 000000000000..eec74c10ddda
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DSI interface to the Samsung S6E63M0 panel.
+ * (C) 2019 Linus Walleij
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/of_device.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_print.h>
+
+#include "panel-samsung-s6e63m0.h"
+
+#define MCS_GLOBAL_PARAM	0xb0
+#define S6E63M0_DSI_MAX_CHUNK	15 /* CMD + 15 bytes max */
+
+static int s6e63m0_dsi_dcs_read(struct device *dev, const u8 cmd, u8 *data)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
+	int ret;
+
+	ret = mipi_dsi_dcs_read(dsi, cmd, data, 1);
+	if (ret < 0) {
+		dev_err(dev, "could not read DCS CMD %02x\n", cmd);
+		return ret;
+	}
+
+	dev_info(dev, "DSI read CMD %02x = %02x\n", cmd, *data);
+
+	return 0;
+}
+
+static int s6e63m0_dsi_dcs_write(struct device *dev, const u8 *data, size_t len)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
+	const u8 *seqp = data;
+	u8 cmd;
+	u8 cmdwritten;
+	int remain;
+	int chunk;
+	int ret;
+
+	dev_info(dev, "DSI writing dcs seq: %*ph\n", (int)len, data);
+
+	/* Pick out and skip past the DCS command */
+	cmd = *seqp;
+	seqp++;
+	cmdwritten = 0;
+	remain = len - 1;
+	chunk = remain;
+
+	/* Send max S6E63M0_DSI_MAX_CHUNK bytes at a time */
+	if (chunk > S6E63M0_DSI_MAX_CHUNK)
+		chunk = S6E63M0_DSI_MAX_CHUNK;
+	ret = mipi_dsi_dcs_write(dsi, cmd, seqp, chunk);
+	if (ret < 0) {
+		dev_err(dev, "error sending DCS command seq cmd %02x\n", cmd);
+		return ret;
+	}
+	cmdwritten += chunk;
+	seqp += chunk;
+
+	while (cmdwritten < remain) {
+		chunk = remain - cmdwritten;
+		if (chunk > S6E63M0_DSI_MAX_CHUNK)
+			chunk = S6E63M0_DSI_MAX_CHUNK;
+		ret = mipi_dsi_dcs_write(dsi, MCS_GLOBAL_PARAM, &cmdwritten, 1);
+		if (ret < 0) {
+			dev_err(dev, "error sending CMD %02x global param %02x\n",
+				cmd, cmdwritten);
+			return ret;
+		}
+		ret = mipi_dsi_dcs_write(dsi, cmd, seqp, chunk);
+		if (ret < 0) {
+			dev_err(dev, "error sending CMD %02x chunk\n", cmd);
+			return ret;
+		}
+		cmdwritten += chunk;
+		seqp += chunk;
+	}
+	dev_info(dev, "sent command %02x %02x bytes\n", cmd, cmdwritten);
+
+	usleep_range(8000, 9000);
+
+	return 0;
+}
+
+static int s6e63m0_dsi_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->lanes = 2;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->hs_rate = 349440000;
+	dsi->lp_rate = 9600000;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
+		MIPI_DSI_MODE_EOT_PACKET |
+		MIPI_DSI_MODE_VIDEO_BURST;
+
+	ret = s6e63m0_probe(dev, s6e63m0_dsi_dcs_read, s6e63m0_dsi_dcs_write,
+			    true);
+	if (ret)
+		return ret;
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret < 0)
+		s6e63m0_remove(dev);
+
+	return ret;
+}
+
+static int s6e63m0_dsi_remove(struct mipi_dsi_device *dsi)
+{
+	mipi_dsi_detach(dsi);
+	return s6e63m0_remove(&dsi->dev);
+}
+
+static const struct of_device_id s6e63m0_dsi_of_match[] = {
+	{ .compatible = "samsung,s6e63m0" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, s6e63m0_dsi_of_match);
+
+static struct mipi_dsi_driver s6e63m0_dsi_driver = {
+	.probe			= s6e63m0_dsi_probe,
+	.remove			= s6e63m0_dsi_remove,
+	.driver			= {
+		.name		= "panel-samsung-s6e63m0",
+		.of_match_table = s6e63m0_dsi_of_match,
+	},
+};
+module_mipi_dsi_driver(s6e63m0_dsi_driver);
+
+MODULE_AUTHOR("Linus Walleij <linusw@kernel.org>");
+MODULE_DESCRIPTION("s6e63m0 LCD DSI Driver");
+MODULE_LICENSE("GPL v2");