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, 817 insertions, 0 deletions

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
new file mode 100644
index 000000000..f76afd811
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
@@ -0,0 +1,817 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Rockchip ISP1 Driver - V4l resizer device
+ *
+ * Copyright (C) 2019 Collabora, Ltd.
+ *
+ * Based on Rockchip ISP1 driver by Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#include "rkisp1-common.h"
+
+#define RKISP1_RSZ_SP_DEV_NAME	RKISP1_DRIVER_NAME "_resizer_selfpath"
+#define RKISP1_RSZ_MP_DEV_NAME	RKISP1_DRIVER_NAME "_resizer_mainpath"
+
+#define RKISP1_DEF_FMT MEDIA_BUS_FMT_YUYV8_2X8
+#define RKISP1_DEF_PIXEL_ENC V4L2_PIXEL_ENC_YUV
+
+struct rkisp1_rsz_yuv_mbus_info {
+	u32 mbus_code;
+	u32 hdiv;
+	u32 vdiv;
+};
+
+static const struct rkisp1_rsz_yuv_mbus_info rkisp1_rsz_yuv_src_formats[] = {
+	{
+		.mbus_code	= MEDIA_BUS_FMT_YUYV8_2X8, /* YUV422 */
+		.hdiv		= 2,
+		.vdiv		= 1,
+	},
+	{
+		.mbus_code	= MEDIA_BUS_FMT_YUYV8_1_5X8, /* YUV420 */
+		.hdiv		= 2,
+		.vdiv		= 2,
+	},
+};
+
+static const struct rkisp1_rsz_yuv_mbus_info *rkisp1_rsz_get_yuv_mbus_info(u32 mbus_code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rkisp1_rsz_yuv_src_formats); i++) {
+		if (rkisp1_rsz_yuv_src_formats[i].mbus_code == mbus_code)
+			return &rkisp1_rsz_yuv_src_formats[i];
+	}
+
+	return NULL;
+}
+
+enum rkisp1_shadow_regs_when {
+	RKISP1_SHADOW_REGS_SYNC,
+	RKISP1_SHADOW_REGS_ASYNC,
+};
+
+struct rkisp1_rsz_config {
+	/* constrains */
+	const int max_rsz_width;
+	const int max_rsz_height;
+	const int min_rsz_width;
+	const int min_rsz_height;
+	/* registers */
+	struct {
+		u32 ctrl;
+		u32 yuvmode_mask;
+		u32 rawmode_mask;
+		u32 h_offset;
+		u32 v_offset;
+		u32 h_size;
+		u32 v_size;
+	} dual_crop;
+};
+
+static const struct rkisp1_rsz_config rkisp1_rsz_config_mp = {
+	/* constraints */
+	.max_rsz_width = RKISP1_RSZ_MP_SRC_MAX_WIDTH,
+	.max_rsz_height = RKISP1_RSZ_MP_SRC_MAX_HEIGHT,
+	.min_rsz_width = RKISP1_RSZ_SRC_MIN_WIDTH,
+	.min_rsz_height = RKISP1_RSZ_SRC_MIN_HEIGHT,
+	/* registers */
+	.dual_crop = {
+		.ctrl =			RKISP1_CIF_DUAL_CROP_CTRL,
+		.yuvmode_mask =		RKISP1_CIF_DUAL_CROP_MP_MODE_YUV,
+		.rawmode_mask =		RKISP1_CIF_DUAL_CROP_MP_MODE_RAW,
+		.h_offset =		RKISP1_CIF_DUAL_CROP_M_H_OFFS,
+		.v_offset =		RKISP1_CIF_DUAL_CROP_M_V_OFFS,
+		.h_size =		RKISP1_CIF_DUAL_CROP_M_H_SIZE,
+		.v_size =		RKISP1_CIF_DUAL_CROP_M_V_SIZE,
+	},
+};
+
+static const struct rkisp1_rsz_config rkisp1_rsz_config_sp = {
+	/* constraints */
+	.max_rsz_width = RKISP1_RSZ_SP_SRC_MAX_WIDTH,
+	.max_rsz_height = RKISP1_RSZ_SP_SRC_MAX_HEIGHT,
+	.min_rsz_width = RKISP1_RSZ_SRC_MIN_WIDTH,
+	.min_rsz_height = RKISP1_RSZ_SRC_MIN_HEIGHT,
+	/* registers */
+	.dual_crop = {
+		.ctrl =			RKISP1_CIF_DUAL_CROP_CTRL,
+		.yuvmode_mask =		RKISP1_CIF_DUAL_CROP_SP_MODE_YUV,
+		.rawmode_mask =		RKISP1_CIF_DUAL_CROP_SP_MODE_RAW,
+		.h_offset =		RKISP1_CIF_DUAL_CROP_S_H_OFFS,
+		.v_offset =		RKISP1_CIF_DUAL_CROP_S_V_OFFS,
+		.h_size =		RKISP1_CIF_DUAL_CROP_S_H_SIZE,
+		.v_size =		RKISP1_CIF_DUAL_CROP_S_V_SIZE,
+	},
+};
+
+static inline u32 rkisp1_rsz_read(struct rkisp1_resizer *rsz, u32 offset)
+{
+	return rkisp1_read(rsz->rkisp1, rsz->regs_base + offset);
+}
+
+static inline void rkisp1_rsz_write(struct rkisp1_resizer *rsz, u32 offset,
+				    u32 value)
+{
+	rkisp1_write(rsz->rkisp1, rsz->regs_base + offset, value);
+}
+
+static struct v4l2_mbus_framefmt *
+rkisp1_rsz_get_pad_fmt(struct rkisp1_resizer *rsz,
+		       struct v4l2_subdev_state *sd_state,
+		       unsigned int pad, u32 which)
+{
+	struct v4l2_subdev_state state = {
+		.pads = rsz->pad_cfg
+		};
+	if (which == V4L2_SUBDEV_FORMAT_TRY)
+		return v4l2_subdev_get_try_format(&rsz->sd, sd_state, pad);
+	else
+		return v4l2_subdev_get_try_format(&rsz->sd, &state, pad);
+}
+
+static struct v4l2_rect *
+rkisp1_rsz_get_pad_crop(struct rkisp1_resizer *rsz,
+			struct v4l2_subdev_state *sd_state,
+			unsigned int pad, u32 which)
+{
+	struct v4l2_subdev_state state = {
+		.pads = rsz->pad_cfg
+		};
+	if (which == V4L2_SUBDEV_FORMAT_TRY)
+		return v4l2_subdev_get_try_crop(&rsz->sd, sd_state, pad);
+	else
+		return v4l2_subdev_get_try_crop(&rsz->sd, &state, pad);
+}
+
+/* ----------------------------------------------------------------------------
+ * Dual crop hw configs
+ */
+
+static void rkisp1_dcrop_disable(struct rkisp1_resizer *rsz,
+				 enum rkisp1_shadow_regs_when when)
+{
+	u32 dc_ctrl = rkisp1_read(rsz->rkisp1, rsz->config->dual_crop.ctrl);
+	u32 mask = ~(rsz->config->dual_crop.yuvmode_mask |
+		     rsz->config->dual_crop.rawmode_mask);
+
+	dc_ctrl &= mask;
+	if (when == RKISP1_SHADOW_REGS_ASYNC)
+		dc_ctrl |= RKISP1_CIF_DUAL_CROP_GEN_CFG_UPD;
+	else
+		dc_ctrl |= RKISP1_CIF_DUAL_CROP_CFG_UPD;
+	rkisp1_write(rsz->rkisp1, rsz->config->dual_crop.ctrl, dc_ctrl);
+}
+
+/* configure dual-crop unit */
+static void rkisp1_dcrop_config(struct rkisp1_resizer *rsz)
+{
+	struct rkisp1_device *rkisp1 = rsz->rkisp1;
+	struct v4l2_mbus_framefmt *sink_fmt;
+	struct v4l2_rect *sink_crop;
+	u32 dc_ctrl;
+
+	sink_crop = rkisp1_rsz_get_pad_crop(rsz, NULL, RKISP1_RSZ_PAD_SINK,
+					    V4L2_SUBDEV_FORMAT_ACTIVE);
+	sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SINK,
+					  V4L2_SUBDEV_FORMAT_ACTIVE);
+
+	if (sink_crop->width == sink_fmt->width &&
+	    sink_crop->height == sink_fmt->height &&
+	    sink_crop->left == 0 && sink_crop->top == 0) {
+		rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_SYNC);
+		dev_dbg(rkisp1->dev, "capture %d crop disabled\n", rsz->id);
+		return;
+	}
+
+	dc_ctrl = rkisp1_read(rkisp1, rsz->config->dual_crop.ctrl);
+	rkisp1_write(rkisp1, rsz->config->dual_crop.h_offset, sink_crop->left);
+	rkisp1_write(rkisp1, rsz->config->dual_crop.v_offset, sink_crop->top);
+	rkisp1_write(rkisp1, rsz->config->dual_crop.h_size, sink_crop->width);
+	rkisp1_write(rkisp1, rsz->config->dual_crop.v_size, sink_crop->height);
+	dc_ctrl |= rsz->config->dual_crop.yuvmode_mask;
+	dc_ctrl |= RKISP1_CIF_DUAL_CROP_CFG_UPD;
+	rkisp1_write(rkisp1, rsz->config->dual_crop.ctrl, dc_ctrl);
+
+	dev_dbg(rkisp1->dev, "stream %d crop: %dx%d -> %dx%d\n", rsz->id,
+		sink_fmt->width, sink_fmt->height,
+		sink_crop->width, sink_crop->height);
+}
+
+/* ----------------------------------------------------------------------------
+ * Resizer hw configs
+ */
+
+static void rkisp1_rsz_update_shadow(struct rkisp1_resizer *rsz,
+				     enum rkisp1_shadow_regs_when when)
+{
+	u32 ctrl_cfg = rkisp1_rsz_read(rsz, RKISP1_CIF_RSZ_CTRL);
+
+	if (when == RKISP1_SHADOW_REGS_ASYNC)
+		ctrl_cfg |= RKISP1_CIF_RSZ_CTRL_CFG_UPD_AUTO;
+	else
+		ctrl_cfg |= RKISP1_CIF_RSZ_CTRL_CFG_UPD;
+
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_CTRL, ctrl_cfg);
+}
+
+static u32 rkisp1_rsz_calc_ratio(u32 len_sink, u32 len_src)
+{
+	if (len_sink < len_src)
+		return ((len_sink - 1) * RKISP1_CIF_RSZ_SCALER_FACTOR) /
+		       (len_src - 1);
+
+	return ((len_src - 1) * RKISP1_CIF_RSZ_SCALER_FACTOR) /
+	       (len_sink - 1) + 1;
+}
+
+static void rkisp1_rsz_disable(struct rkisp1_resizer *rsz,
+			       enum rkisp1_shadow_regs_when when)
+{
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_CTRL, 0);
+
+	if (when == RKISP1_SHADOW_REGS_SYNC)
+		rkisp1_rsz_update_shadow(rsz, when);
+}
+
+static void rkisp1_rsz_config_regs(struct rkisp1_resizer *rsz,
+				   struct v4l2_rect *sink_y,
+				   struct v4l2_rect *sink_c,
+				   struct v4l2_rect *src_y,
+				   struct v4l2_rect *src_c,
+				   enum rkisp1_shadow_regs_when when)
+{
+	u32 ratio, rsz_ctrl = 0;
+	unsigned int i;
+
+	/* No phase offset */
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_PHASE_HY, 0);
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_PHASE_HC, 0);
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_PHASE_VY, 0);
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_PHASE_VC, 0);
+
+	/* Linear interpolation */
+	for (i = 0; i < 64; i++) {
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_LUT_ADDR, i);
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_LUT, i);
+	}
+
+	if (sink_y->width != src_y->width) {
+		rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HY_ENABLE;
+		if (sink_y->width < src_y->width)
+			rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HY_UP;
+		ratio = rkisp1_rsz_calc_ratio(sink_y->width, src_y->width);
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_HY, ratio);
+	}
+
+	if (sink_c->width != src_c->width) {
+		rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HC_ENABLE;
+		if (sink_c->width < src_c->width)
+			rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_HC_UP;
+		ratio = rkisp1_rsz_calc_ratio(sink_c->width, src_c->width);
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_HCB, ratio);
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_HCR, ratio);
+	}
+
+	if (sink_y->height != src_y->height) {
+		rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VY_ENABLE;
+		if (sink_y->height < src_y->height)
+			rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VY_UP;
+		ratio = rkisp1_rsz_calc_ratio(sink_y->height, src_y->height);
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_VY, ratio);
+	}
+
+	if (sink_c->height != src_c->height) {
+		rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VC_ENABLE;
+		if (sink_c->height < src_c->height)
+			rsz_ctrl |= RKISP1_CIF_RSZ_CTRL_SCALE_VC_UP;
+		ratio = rkisp1_rsz_calc_ratio(sink_c->height, src_c->height);
+		rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_SCALE_VC, ratio);
+	}
+
+	rkisp1_rsz_write(rsz, RKISP1_CIF_RSZ_CTRL, rsz_ctrl);
+
+	rkisp1_rsz_update_shadow(rsz, when);
+}
+
+static void rkisp1_rsz_config(struct rkisp1_resizer *rsz,
+			      enum rkisp1_shadow_regs_when when)
+{
+	const struct rkisp1_rsz_yuv_mbus_info *sink_yuv_info, *src_yuv_info;
+	struct v4l2_rect sink_y, sink_c, src_y, src_c;
+	struct v4l2_mbus_framefmt *src_fmt, *sink_fmt;
+	struct v4l2_rect *sink_crop;
+
+	sink_crop = rkisp1_rsz_get_pad_crop(rsz, NULL, RKISP1_RSZ_PAD_SINK,
+					    V4L2_SUBDEV_FORMAT_ACTIVE);
+	src_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SRC,
+					 V4L2_SUBDEV_FORMAT_ACTIVE);
+	src_yuv_info = rkisp1_rsz_get_yuv_mbus_info(src_fmt->code);
+	sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SINK,
+					  V4L2_SUBDEV_FORMAT_ACTIVE);
+	sink_yuv_info = rkisp1_rsz_get_yuv_mbus_info(sink_fmt->code);
+
+	/*
+	 * The resizer only works on yuv formats,
+	 * so return if it is bayer format.
+	 */
+	if (rsz->pixel_enc == V4L2_PIXEL_ENC_BAYER) {
+		rkisp1_rsz_disable(rsz, when);
+		return;
+	}
+
+	sink_y.width = sink_crop->width;
+	sink_y.height = sink_crop->height;
+	src_y.width = src_fmt->width;
+	src_y.height = src_fmt->height;
+
+	sink_c.width = sink_y.width / sink_yuv_info->hdiv;
+	sink_c.height = sink_y.height / sink_yuv_info->vdiv;
+
+	/*
+	 * The resizer is used not only to change the dimensions of the frame
+	 * but also to change the scale for YUV formats,
+	 * (4:2:2 -> 4:2:0 for example). So the width/height of the CbCr
+	 * streams should be set according to the media bus format in the src pad.
+	 */
+	src_c.width = src_y.width / src_yuv_info->hdiv;
+	src_c.height = src_y.height / src_yuv_info->vdiv;
+
+	if (sink_c.width == src_c.width && sink_c.height == src_c.height) {
+		rkisp1_rsz_disable(rsz, when);
+		return;
+	}
+
+	dev_dbg(rsz->rkisp1->dev, "stream %d rsz/scale: %dx%d -> %dx%d\n",
+		rsz->id, sink_crop->width, sink_crop->height,
+		src_fmt->width, src_fmt->height);
+	dev_dbg(rsz->rkisp1->dev, "chroma scaling %dx%d -> %dx%d\n",
+		sink_c.width, sink_c.height, src_c.width, src_c.height);
+
+	/* set values in the hw */
+	rkisp1_rsz_config_regs(rsz, &sink_y, &sink_c, &src_y, &src_c, when);
+}
+
+/* ----------------------------------------------------------------------------
+ * Subdev pad operations
+ */
+
+static int rkisp1_rsz_enum_mbus_code(struct v4l2_subdev *sd,
+				     struct v4l2_subdev_state *sd_state,
+				     struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct rkisp1_resizer *rsz =
+		container_of(sd, struct rkisp1_resizer, sd);
+	struct v4l2_subdev_pad_config dummy_cfg;
+	struct v4l2_subdev_state pad_state = {
+		.pads = &dummy_cfg
+		};
+	u32 pad = code->pad;
+	int ret;
+
+	if (code->pad == RKISP1_RSZ_PAD_SRC) {
+		/* supported mbus codes on the src are the same as in the capture */
+		struct rkisp1_capture *cap = &rsz->rkisp1->capture_devs[rsz->id];
+
+		return rkisp1_cap_enum_mbus_codes(cap, code);
+	}
+
+	/*
+	 * The selfpath capture doesn't support bayer formats. Therefore the selfpath resizer
+	 * should support only YUV422 on the sink pad
+	 */
+	if (rsz->id == RKISP1_SELFPATH) {
+		if (code->index > 0)
+			return -EINVAL;
+		code->code = MEDIA_BUS_FMT_YUYV8_2X8;
+		return 0;
+	}
+
+	/* supported mbus codes on the sink pad are the same as isp src pad */
+	code->pad = RKISP1_ISP_PAD_SOURCE_VIDEO;
+	ret = v4l2_subdev_call(&rsz->rkisp1->isp.sd, pad, enum_mbus_code,
+			       &pad_state, code);
+
+	/* restore pad */
+	code->pad = pad;
+	code->flags = 0;
+	return ret;
+}
+
+static int rkisp1_rsz_init_config(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *sd_state)
+{
+	struct v4l2_mbus_framefmt *sink_fmt, *src_fmt;
+	struct v4l2_rect *sink_crop;
+
+	sink_fmt = v4l2_subdev_get_try_format(sd, sd_state,
+					      RKISP1_RSZ_PAD_SRC);
+	sink_fmt->width = RKISP1_DEFAULT_WIDTH;
+	sink_fmt->height = RKISP1_DEFAULT_HEIGHT;
+	sink_fmt->field = V4L2_FIELD_NONE;
+	sink_fmt->code = RKISP1_DEF_FMT;
+	sink_fmt->colorspace = V4L2_COLORSPACE_SRGB;
+	sink_fmt->xfer_func = V4L2_XFER_FUNC_SRGB;
+	sink_fmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
+	sink_fmt->quantization = V4L2_QUANTIZATION_LIM_RANGE;
+
+	sink_crop = v4l2_subdev_get_try_crop(sd, sd_state,
+					     RKISP1_RSZ_PAD_SINK);
+	sink_crop->width = RKISP1_DEFAULT_WIDTH;
+	sink_crop->height = RKISP1_DEFAULT_HEIGHT;
+	sink_crop->left = 0;
+	sink_crop->top = 0;
+
+	src_fmt = v4l2_subdev_get_try_format(sd, sd_state,
+					     RKISP1_RSZ_PAD_SINK);
+	*src_fmt = *sink_fmt;
+
+	/* NOTE: there is no crop in the source pad, only in the sink */
+
+	return 0;
+}
+
+static void rkisp1_rsz_set_src_fmt(struct rkisp1_resizer *rsz,
+				   struct v4l2_subdev_state *sd_state,
+				   struct v4l2_mbus_framefmt *format,
+				   unsigned int which)
+{
+	const struct rkisp1_mbus_info *sink_mbus_info;
+	struct v4l2_mbus_framefmt *src_fmt, *sink_fmt;
+
+	sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, sd_state, RKISP1_RSZ_PAD_SINK,
+					  which);
+	src_fmt = rkisp1_rsz_get_pad_fmt(rsz, sd_state, RKISP1_RSZ_PAD_SRC,
+					 which);
+	sink_mbus_info = rkisp1_mbus_info_get_by_code(sink_fmt->code);
+
+	/* for YUV formats, userspace can change the mbus code on the src pad if it is supported */
+	if (sink_mbus_info->pixel_enc == V4L2_PIXEL_ENC_YUV &&
+	    rkisp1_rsz_get_yuv_mbus_info(format->code))
+		src_fmt->code = format->code;
+
+	src_fmt->width = clamp_t(u32, format->width,
+				 rsz->config->min_rsz_width,
+				 rsz->config->max_rsz_width);
+	src_fmt->height = clamp_t(u32, format->height,
+				  rsz->config->min_rsz_height,
+				  rsz->config->max_rsz_height);
+
+	*format = *src_fmt;
+}
+
+static void rkisp1_rsz_set_sink_crop(struct rkisp1_resizer *rsz,
+				     struct v4l2_subdev_state *sd_state,
+				     struct v4l2_rect *r,
+				     unsigned int which)
+{
+	const struct rkisp1_mbus_info *mbus_info;
+	struct v4l2_mbus_framefmt *sink_fmt;
+	struct v4l2_rect *sink_crop;
+
+	sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, sd_state, RKISP1_RSZ_PAD_SINK,
+					  which);
+	sink_crop = rkisp1_rsz_get_pad_crop(rsz, sd_state,
+					    RKISP1_RSZ_PAD_SINK,
+					    which);
+
+	/* Not crop for MP bayer raw data */
+	mbus_info = rkisp1_mbus_info_get_by_code(sink_fmt->code);
+
+	if (rsz->id == RKISP1_MAINPATH &&
+	    mbus_info->pixel_enc == V4L2_PIXEL_ENC_BAYER) {
+		sink_crop->left = 0;
+		sink_crop->top = 0;
+		sink_crop->width = sink_fmt->width;
+		sink_crop->height = sink_fmt->height;
+
+		*r = *sink_crop;
+		return;
+	}
+
+	sink_crop->left = ALIGN(r->left, 2);
+	sink_crop->width = ALIGN(r->width, 2);
+	sink_crop->top = r->top;
+	sink_crop->height = r->height;
+	rkisp1_sd_adjust_crop(sink_crop, sink_fmt);
+
+	*r = *sink_crop;
+}
+
+static void rkisp1_rsz_set_sink_fmt(struct rkisp1_resizer *rsz,
+				    struct v4l2_subdev_state *sd_state,
+				    struct v4l2_mbus_framefmt *format,
+				    unsigned int which)
+{
+	const struct rkisp1_mbus_info *mbus_info;
+	struct v4l2_mbus_framefmt *sink_fmt, *src_fmt;
+	struct v4l2_rect *sink_crop;
+	bool is_yuv;
+
+	sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, sd_state, RKISP1_RSZ_PAD_SINK,
+					  which);
+	src_fmt = rkisp1_rsz_get_pad_fmt(rsz, sd_state, RKISP1_RSZ_PAD_SRC,
+					 which);
+	sink_crop = rkisp1_rsz_get_pad_crop(rsz, sd_state,
+					    RKISP1_RSZ_PAD_SINK,
+					    which);
+	if (rsz->id == RKISP1_SELFPATH)
+		sink_fmt->code = MEDIA_BUS_FMT_YUYV8_2X8;
+	else
+		sink_fmt->code = format->code;
+
+	mbus_info = rkisp1_mbus_info_get_by_code(sink_fmt->code);
+	if (!mbus_info || !(mbus_info->direction & RKISP1_ISP_SD_SRC)) {
+		sink_fmt->code = RKISP1_DEF_FMT;
+		mbus_info = rkisp1_mbus_info_get_by_code(sink_fmt->code);
+	}
+	if (which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		rsz->pixel_enc = mbus_info->pixel_enc;
+
+	sink_fmt->width = clamp_t(u32, format->width,
+				  RKISP1_ISP_MIN_WIDTH,
+				  RKISP1_ISP_MAX_WIDTH);
+	sink_fmt->height = clamp_t(u32, format->height,
+				   RKISP1_ISP_MIN_HEIGHT,
+				   RKISP1_ISP_MAX_HEIGHT);
+
+	/*
+	 * Adjust the color space fields. Accept any color primaries and
+	 * transfer function for both YUV and Bayer. For YUV any YCbCr encoding
+	 * and quantization range is also accepted. For Bayer formats, the YCbCr
+	 * encoding isn't applicable, and the quantization range can only be
+	 * full.
+	 */
+	is_yuv = mbus_info->pixel_enc == V4L2_PIXEL_ENC_YUV;
+
+	sink_fmt->colorspace = format->colorspace ? :
+			       (is_yuv ? V4L2_COLORSPACE_SRGB :
+				V4L2_COLORSPACE_RAW);
+	sink_fmt->xfer_func = format->xfer_func ? :
+			      V4L2_MAP_XFER_FUNC_DEFAULT(sink_fmt->colorspace);
+	if (is_yuv) {
+		sink_fmt->ycbcr_enc = format->ycbcr_enc ? :
+			V4L2_MAP_YCBCR_ENC_DEFAULT(sink_fmt->colorspace);
+		sink_fmt->quantization = format->quantization ? :
+			V4L2_MAP_QUANTIZATION_DEFAULT(false, sink_fmt->colorspace,
+						      sink_fmt->ycbcr_enc);
+	} else {
+		/*
+		 * The YCbCr encoding isn't applicable for non-YUV formats, but
+		 * V4L2 has no "no encoding" value. Hardcode it to Rec. 601, it
+		 * should be ignored by userspace.
+		 */
+		sink_fmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
+		sink_fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
+	}
+
+	*format = *sink_fmt;
+
+	/* Propagate the media bus code and color space to the source pad. */
+	src_fmt->code = sink_fmt->code;
+	src_fmt->colorspace = sink_fmt->colorspace;
+	src_fmt->xfer_func = sink_fmt->xfer_func;
+	src_fmt->ycbcr_enc = sink_fmt->ycbcr_enc;
+	src_fmt->quantization = sink_fmt->quantization;
+
+	/* Update sink crop */
+	rkisp1_rsz_set_sink_crop(rsz, sd_state, sink_crop, which);
+}
+
+static int rkisp1_rsz_get_fmt(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_format *fmt)
+{
+	struct rkisp1_resizer *rsz =
+		container_of(sd, struct rkisp1_resizer, sd);
+
+	mutex_lock(&rsz->ops_lock);
+	fmt->format = *rkisp1_rsz_get_pad_fmt(rsz, sd_state, fmt->pad,
+					      fmt->which);
+	mutex_unlock(&rsz->ops_lock);
+	return 0;
+}
+
+static int rkisp1_rsz_set_fmt(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_format *fmt)
+{
+	struct rkisp1_resizer *rsz =
+		container_of(sd, struct rkisp1_resizer, sd);
+
+	mutex_lock(&rsz->ops_lock);
+	if (fmt->pad == RKISP1_RSZ_PAD_SINK)
+		rkisp1_rsz_set_sink_fmt(rsz, sd_state, &fmt->format,
+					fmt->which);
+	else
+		rkisp1_rsz_set_src_fmt(rsz, sd_state, &fmt->format,
+				       fmt->which);
+
+	mutex_unlock(&rsz->ops_lock);
+	return 0;
+}
+
+static int rkisp1_rsz_get_selection(struct v4l2_subdev *sd,
+				    struct v4l2_subdev_state *sd_state,
+				    struct v4l2_subdev_selection *sel)
+{
+	struct rkisp1_resizer *rsz =
+		container_of(sd, struct rkisp1_resizer, sd);
+	struct v4l2_mbus_framefmt *mf_sink;
+	int ret = 0;
+
+	if (sel->pad == RKISP1_RSZ_PAD_SRC)
+		return -EINVAL;
+
+	mutex_lock(&rsz->ops_lock);
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		mf_sink = rkisp1_rsz_get_pad_fmt(rsz, sd_state,
+						 RKISP1_RSZ_PAD_SINK,
+						 sel->which);
+		sel->r.height = mf_sink->height;
+		sel->r.width = mf_sink->width;
+		sel->r.left = 0;
+		sel->r.top = 0;
+		break;
+	case V4L2_SEL_TGT_CROP:
+		sel->r = *rkisp1_rsz_get_pad_crop(rsz, sd_state,
+						  RKISP1_RSZ_PAD_SINK,
+						  sel->which);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	mutex_unlock(&rsz->ops_lock);
+	return ret;
+}
+
+static int rkisp1_rsz_set_selection(struct v4l2_subdev *sd,
+				    struct v4l2_subdev_state *sd_state,
+				    struct v4l2_subdev_selection *sel)
+{
+	struct rkisp1_resizer *rsz =
+		container_of(sd, struct rkisp1_resizer, sd);
+
+	if (sel->target != V4L2_SEL_TGT_CROP || sel->pad == RKISP1_RSZ_PAD_SRC)
+		return -EINVAL;
+
+	dev_dbg(rsz->rkisp1->dev, "%s: pad: %d sel(%d,%d)/%dx%d\n", __func__,
+		sel->pad, sel->r.left, sel->r.top, sel->r.width, sel->r.height);
+
+	mutex_lock(&rsz->ops_lock);
+	rkisp1_rsz_set_sink_crop(rsz, sd_state, &sel->r, sel->which);
+	mutex_unlock(&rsz->ops_lock);
+
+	return 0;
+}
+
+static const struct media_entity_operations rkisp1_rsz_media_ops = {
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_pad_ops rkisp1_rsz_pad_ops = {
+	.enum_mbus_code = rkisp1_rsz_enum_mbus_code,
+	.get_selection = rkisp1_rsz_get_selection,
+	.set_selection = rkisp1_rsz_set_selection,
+	.init_cfg = rkisp1_rsz_init_config,
+	.get_fmt = rkisp1_rsz_get_fmt,
+	.set_fmt = rkisp1_rsz_set_fmt,
+	.link_validate = v4l2_subdev_link_validate_default,
+};
+
+/* ----------------------------------------------------------------------------
+ * Stream operations
+ */
+
+static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct rkisp1_resizer *rsz =
+		container_of(sd, struct rkisp1_resizer, sd);
+	struct rkisp1_device *rkisp1 = rsz->rkisp1;
+	struct rkisp1_capture *other = &rkisp1->capture_devs[rsz->id ^ 1];
+	enum rkisp1_shadow_regs_when when = RKISP1_SHADOW_REGS_SYNC;
+
+	if (!enable) {
+		rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
+		rkisp1_rsz_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
+		return 0;
+	}
+
+	if (other->is_streaming)
+		when = RKISP1_SHADOW_REGS_ASYNC;
+
+	mutex_lock(&rsz->ops_lock);
+	rkisp1_rsz_config(rsz, when);
+	rkisp1_dcrop_config(rsz);
+
+	mutex_unlock(&rsz->ops_lock);
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops rkisp1_rsz_video_ops = {
+	.s_stream = rkisp1_rsz_s_stream,
+};
+
+static const struct v4l2_subdev_ops rkisp1_rsz_ops = {
+	.video = &rkisp1_rsz_video_ops,
+	.pad = &rkisp1_rsz_pad_ops,
+};
+
+static void rkisp1_rsz_unregister(struct rkisp1_resizer *rsz)
+{
+	if (!rsz->rkisp1)
+		return;
+
+	v4l2_device_unregister_subdev(&rsz->sd);
+	media_entity_cleanup(&rsz->sd.entity);
+	mutex_destroy(&rsz->ops_lock);
+}
+
+static int rkisp1_rsz_register(struct rkisp1_resizer *rsz)
+{
+	struct v4l2_subdev_state state = {
+		.pads = rsz->pad_cfg
+		};
+	static const char * const dev_names[] = {
+		RKISP1_RSZ_MP_DEV_NAME,
+		RKISP1_RSZ_SP_DEV_NAME
+	};
+	struct media_pad *pads = rsz->pads;
+	struct v4l2_subdev *sd = &rsz->sd;
+	int ret;
+
+	if (rsz->id == RKISP1_SELFPATH) {
+		rsz->regs_base = RKISP1_CIF_SRSZ_BASE;
+		rsz->config = &rkisp1_rsz_config_sp;
+	} else {
+		rsz->regs_base = RKISP1_CIF_MRSZ_BASE;
+		rsz->config = &rkisp1_rsz_config_mp;
+	}
+
+	v4l2_subdev_init(sd, &rkisp1_rsz_ops);
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	sd->entity.ops = &rkisp1_rsz_media_ops;
+	sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
+	sd->owner = THIS_MODULE;
+	strscpy(sd->name, dev_names[rsz->id], sizeof(sd->name));
+
+	pads[RKISP1_RSZ_PAD_SINK].flags = MEDIA_PAD_FL_SINK |
+					  MEDIA_PAD_FL_MUST_CONNECT;
+	pads[RKISP1_RSZ_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE |
+					 MEDIA_PAD_FL_MUST_CONNECT;
+
+	rsz->pixel_enc = RKISP1_DEF_PIXEL_ENC;
+
+	mutex_init(&rsz->ops_lock);
+	ret = media_entity_pads_init(&sd->entity, RKISP1_RSZ_PAD_MAX, pads);
+	if (ret)
+		goto error;
+
+	ret = v4l2_device_register_subdev(&rsz->rkisp1->v4l2_dev, sd);
+	if (ret) {
+		dev_err(sd->dev, "Failed to register resizer subdev\n");
+		goto error;
+	}
+
+	rkisp1_rsz_init_config(sd, &state);
+	return 0;
+
+error:
+	media_entity_cleanup(&sd->entity);
+	mutex_destroy(&rsz->ops_lock);
+	return ret;
+}
+
+int rkisp1_resizer_devs_register(struct rkisp1_device *rkisp1)
+{
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(rkisp1->resizer_devs); i++) {
+		struct rkisp1_resizer *rsz = &rkisp1->resizer_devs[i];
+
+		rsz->rkisp1 = rkisp1;
+		rsz->id = i;
+
+		ret = rkisp1_rsz_register(rsz);
+		if (ret) {
+			rsz->rkisp1 = NULL;
+			rkisp1_resizer_devs_unregister(rkisp1);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+void rkisp1_resizer_devs_unregister(struct rkisp1_device *rkisp1)
+{
+	struct rkisp1_resizer *mp = &rkisp1->resizer_devs[RKISP1_MAINPATH];
+	struct rkisp1_resizer *sp = &rkisp1->resizer_devs[RKISP1_SELFPATH];
+
+	rkisp1_rsz_unregister(mp);
+	rkisp1_rsz_unregister(sp);
+}