Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 436 insertions, 0 deletions

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
new file mode 100644
index 000000000..810edea0a
--- /dev/null
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -0,0 +1,436 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2016 Marek Vasut <marex@denx.de>
+ *
+ * This code is based on drivers/video/fbdev/mxsfb.c :
+ * Copyright (C) 2010 Juergen Beisert, Pengutronix
+ * Copyright (C) 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_connector.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fbdev_generic.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_mode_config.h>
+#include <drm/drm_module.h>
+#include <drm/drm_of.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "mxsfb_drv.h"
+#include "mxsfb_regs.h"
+
+enum mxsfb_devtype {
+	MXSFB_V3,
+	MXSFB_V4,
+	/*
+	 * Starting at i.MX6 the hardware version register is gone, use the
+	 * i.MX family number as the version.
+	 */
+	MXSFB_V6,
+};
+
+static const struct mxsfb_devdata mxsfb_devdata[] = {
+	[MXSFB_V3] = {
+		.transfer_count	= LCDC_V3_TRANSFER_COUNT,
+		.cur_buf	= LCDC_V3_CUR_BUF,
+		.next_buf	= LCDC_V3_NEXT_BUF,
+		.hs_wdth_mask	= 0xff,
+		.hs_wdth_shift	= 24,
+		.has_overlay	= false,
+		.has_ctrl2	= false,
+		.has_crc32	= false,
+	},
+	[MXSFB_V4] = {
+		.transfer_count	= LCDC_V4_TRANSFER_COUNT,
+		.cur_buf	= LCDC_V4_CUR_BUF,
+		.next_buf	= LCDC_V4_NEXT_BUF,
+		.hs_wdth_mask	= 0x3fff,
+		.hs_wdth_shift	= 18,
+		.has_overlay	= false,
+		.has_ctrl2	= true,
+		.has_crc32	= true,
+	},
+	[MXSFB_V6] = {
+		.transfer_count	= LCDC_V4_TRANSFER_COUNT,
+		.cur_buf	= LCDC_V4_CUR_BUF,
+		.next_buf	= LCDC_V4_NEXT_BUF,
+		.hs_wdth_mask	= 0x3fff,
+		.hs_wdth_shift	= 18,
+		.has_overlay	= true,
+		.has_ctrl2	= true,
+		.has_crc32	= true,
+	},
+};
+
+void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb)
+{
+	if (mxsfb->clk_axi)
+		clk_prepare_enable(mxsfb->clk_axi);
+}
+
+void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb)
+{
+	if (mxsfb->clk_axi)
+		clk_disable_unprepare(mxsfb->clk_axi);
+}
+
+static struct drm_framebuffer *
+mxsfb_fb_create(struct drm_device *dev, struct drm_file *file_priv,
+		const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	const struct drm_format_info *info;
+
+	info = drm_get_format_info(dev, mode_cmd);
+	if (!info)
+		return ERR_PTR(-EINVAL);
+
+	if (mode_cmd->width * info->cpp[0] != mode_cmd->pitches[0]) {
+		dev_dbg(dev->dev, "Invalid pitch: fb width must match pitch\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	return drm_gem_fb_create(dev, file_priv, mode_cmd);
+}
+
+static const struct drm_mode_config_funcs mxsfb_mode_config_funcs = {
+	.fb_create		= mxsfb_fb_create,
+	.atomic_check		= drm_atomic_helper_check,
+	.atomic_commit		= drm_atomic_helper_commit,
+};
+
+static const struct drm_mode_config_helper_funcs mxsfb_mode_config_helpers = {
+	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
+};
+
+static int mxsfb_attach_bridge(struct mxsfb_drm_private *mxsfb)
+{
+	struct drm_device *drm = mxsfb->drm;
+	struct drm_connector_list_iter iter;
+	struct drm_panel *panel;
+	struct drm_bridge *bridge;
+	int ret;
+
+	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel,
+					  &bridge);
+	if (ret)
+		return ret;
+
+	if (panel) {
+		bridge = devm_drm_panel_bridge_add_typed(drm->dev, panel,
+							 DRM_MODE_CONNECTOR_DPI);
+		if (IS_ERR(bridge))
+			return PTR_ERR(bridge);
+	}
+
+	if (!bridge)
+		return -ENODEV;
+
+	ret = drm_bridge_attach(&mxsfb->encoder, bridge, NULL, 0);
+	if (ret)
+		return dev_err_probe(drm->dev, ret, "Failed to attach bridge\n");
+
+	mxsfb->bridge = bridge;
+
+	/*
+	 * Get hold of the connector. This is a bit of a hack, until the bridge
+	 * API gives us bus flags and formats.
+	 */
+	drm_connector_list_iter_begin(drm, &iter);
+	mxsfb->connector = drm_connector_list_iter_next(&iter);
+	drm_connector_list_iter_end(&iter);
+
+	return 0;
+}
+
+static irqreturn_t mxsfb_irq_handler(int irq, void *data)
+{
+	struct drm_device *drm = data;
+	struct mxsfb_drm_private *mxsfb = drm->dev_private;
+	u32 reg, crc;
+	u64 vbc;
+
+	reg = readl(mxsfb->base + LCDC_CTRL1);
+
+	if (reg & CTRL1_CUR_FRAME_DONE_IRQ) {
+		drm_crtc_handle_vblank(&mxsfb->crtc);
+		if (mxsfb->crc_active) {
+			crc = readl(mxsfb->base + LCDC_V4_CRC_STAT);
+			vbc = drm_crtc_accurate_vblank_count(&mxsfb->crtc);
+			drm_crtc_add_crc_entry(&mxsfb->crtc, true, vbc, &crc);
+		}
+	}
+
+	writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+
+	return IRQ_HANDLED;
+}
+
+static void mxsfb_irq_disable(struct drm_device *drm)
+{
+	struct mxsfb_drm_private *mxsfb = drm->dev_private;
+
+	mxsfb_enable_axi_clk(mxsfb);
+
+	/* Disable and clear VBLANK IRQ */
+	writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+	writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+
+	mxsfb_disable_axi_clk(mxsfb);
+}
+
+static int mxsfb_irq_install(struct drm_device *dev, int irq)
+{
+	if (irq == IRQ_NOTCONNECTED)
+		return -ENOTCONN;
+
+	mxsfb_irq_disable(dev);
+
+	return request_irq(irq, mxsfb_irq_handler, 0,  dev->driver->name, dev);
+}
+
+static void mxsfb_irq_uninstall(struct drm_device *dev)
+{
+	struct mxsfb_drm_private *mxsfb = dev->dev_private;
+
+	mxsfb_irq_disable(dev);
+	free_irq(mxsfb->irq, dev);
+}
+
+static int mxsfb_load(struct drm_device *drm,
+		      const struct mxsfb_devdata *devdata)
+{
+	struct platform_device *pdev = to_platform_device(drm->dev);
+	struct mxsfb_drm_private *mxsfb;
+	struct resource *res;
+	int ret;
+
+	mxsfb = devm_kzalloc(&pdev->dev, sizeof(*mxsfb), GFP_KERNEL);
+	if (!mxsfb)
+		return -ENOMEM;
+
+	mxsfb->drm = drm;
+	drm->dev_private = mxsfb;
+	mxsfb->devdata = devdata;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	mxsfb->base = devm_ioremap_resource(drm->dev, res);
+	if (IS_ERR(mxsfb->base))
+		return PTR_ERR(mxsfb->base);
+
+	mxsfb->clk = devm_clk_get(drm->dev, NULL);
+	if (IS_ERR(mxsfb->clk))
+		return PTR_ERR(mxsfb->clk);
+
+	mxsfb->clk_axi = devm_clk_get(drm->dev, "axi");
+	if (IS_ERR(mxsfb->clk_axi))
+		mxsfb->clk_axi = NULL;
+
+	mxsfb->clk_disp_axi = devm_clk_get(drm->dev, "disp_axi");
+	if (IS_ERR(mxsfb->clk_disp_axi))
+		mxsfb->clk_disp_axi = NULL;
+
+	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	pm_runtime_enable(drm->dev);
+
+	/* Modeset init */
+	drm_mode_config_init(drm);
+
+	ret = mxsfb_kms_init(mxsfb);
+	if (ret < 0) {
+		dev_err(drm->dev, "Failed to initialize KMS pipeline\n");
+		goto err_vblank;
+	}
+
+	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
+	if (ret < 0) {
+		dev_err(drm->dev, "Failed to initialise vblank\n");
+		goto err_vblank;
+	}
+
+	/* Start with vertical blanking interrupt reporting disabled. */
+	drm_crtc_vblank_off(&mxsfb->crtc);
+
+	ret = mxsfb_attach_bridge(mxsfb);
+	if (ret) {
+		dev_err_probe(drm->dev, ret, "Cannot connect bridge\n");
+		goto err_vblank;
+	}
+
+	drm->mode_config.min_width	= MXSFB_MIN_XRES;
+	drm->mode_config.min_height	= MXSFB_MIN_YRES;
+	drm->mode_config.max_width	= MXSFB_MAX_XRES;
+	drm->mode_config.max_height	= MXSFB_MAX_YRES;
+	drm->mode_config.funcs		= &mxsfb_mode_config_funcs;
+	drm->mode_config.helper_private	= &mxsfb_mode_config_helpers;
+
+	drm_mode_config_reset(drm);
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		goto err_vblank;
+	mxsfb->irq = ret;
+
+	pm_runtime_get_sync(drm->dev);
+	ret = mxsfb_irq_install(drm, mxsfb->irq);
+	pm_runtime_put_sync(drm->dev);
+
+	if (ret < 0) {
+		dev_err(drm->dev, "Failed to install IRQ handler\n");
+		goto err_vblank;
+	}
+
+	drm_kms_helper_poll_init(drm);
+
+	platform_set_drvdata(pdev, drm);
+
+	drm_helper_hpd_irq_event(drm);
+
+	return 0;
+
+err_vblank:
+	pm_runtime_disable(drm->dev);
+
+	return ret;
+}
+
+static void mxsfb_unload(struct drm_device *drm)
+{
+	drm_kms_helper_poll_fini(drm);
+	drm_mode_config_cleanup(drm);
+
+	pm_runtime_get_sync(drm->dev);
+	mxsfb_irq_uninstall(drm);
+	pm_runtime_put_sync(drm->dev);
+
+	drm->dev_private = NULL;
+
+	pm_runtime_disable(drm->dev);
+}
+
+DEFINE_DRM_GEM_DMA_FOPS(fops);
+
+static const struct drm_driver mxsfb_driver = {
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
+	DRM_GEM_DMA_DRIVER_OPS,
+	.fops	= &fops,
+	.name	= "mxsfb-drm",
+	.desc	= "MXSFB Controller DRM",
+	.date	= "20160824",
+	.major	= 1,
+	.minor	= 0,
+};
+
+static const struct of_device_id mxsfb_dt_ids[] = {
+	{ .compatible = "fsl,imx23-lcdif", .data = &mxsfb_devdata[MXSFB_V3], },
+	{ .compatible = "fsl,imx28-lcdif", .data = &mxsfb_devdata[MXSFB_V4], },
+	{ .compatible = "fsl,imx6sx-lcdif", .data = &mxsfb_devdata[MXSFB_V6], },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mxsfb_dt_ids);
+
+static int mxsfb_probe(struct platform_device *pdev)
+{
+	struct drm_device *drm;
+	const struct of_device_id *of_id =
+			of_match_device(mxsfb_dt_ids, &pdev->dev);
+	int ret;
+
+	if (!pdev->dev.of_node)
+		return -ENODEV;
+
+	drm = drm_dev_alloc(&mxsfb_driver, &pdev->dev);
+	if (IS_ERR(drm))
+		return PTR_ERR(drm);
+
+	ret = mxsfb_load(drm, of_id->data);
+	if (ret)
+		goto err_free;
+
+	ret = drm_dev_register(drm, 0);
+	if (ret)
+		goto err_unload;
+
+	drm_fbdev_generic_setup(drm, 32);
+
+	return 0;
+
+err_unload:
+	mxsfb_unload(drm);
+err_free:
+	drm_dev_put(drm);
+
+	return ret;
+}
+
+static int mxsfb_remove(struct platform_device *pdev)
+{
+	struct drm_device *drm = platform_get_drvdata(pdev);
+
+	drm_dev_unregister(drm);
+	drm_atomic_helper_shutdown(drm);
+	mxsfb_unload(drm);
+	drm_dev_put(drm);
+
+	return 0;
+}
+
+static void mxsfb_shutdown(struct platform_device *pdev)
+{
+	struct drm_device *drm = platform_get_drvdata(pdev);
+
+	drm_atomic_helper_shutdown(drm);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mxsfb_suspend(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_suspend(drm);
+}
+
+static int mxsfb_resume(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_resume(drm);
+}
+#endif
+
+static const struct dev_pm_ops mxsfb_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(mxsfb_suspend, mxsfb_resume)
+};
+
+static struct platform_driver mxsfb_platform_driver = {
+	.probe		= mxsfb_probe,
+	.remove		= mxsfb_remove,
+	.shutdown	= mxsfb_shutdown,
+	.driver	= {
+		.name		= "mxsfb",
+		.of_match_table	= mxsfb_dt_ids,
+		.pm		= &mxsfb_pm_ops,
+	},
+};
+
+drm_module_platform_driver(mxsfb_platform_driver);
+
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_DESCRIPTION("Freescale MXS DRM/KMS driver");
+MODULE_LICENSE("GPL");