Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1426 insertions, 0 deletions

diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
new file mode 100644
index 000000000..0fb48ac04
--- /dev/null
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -0,0 +1,1426 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) STMicroelectronics SA 2014
+ * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
+ */
+
+#include <linux/component.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/reset.h>
+#include <linux/seq_file.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_device.h>
+#include <drm/drm_fb_dma_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_gem_dma_helper.h>
+
+#include "sti_compositor.h"
+#include "sti_drv.h"
+#include "sti_hqvdp_lut.h"
+#include "sti_plane.h"
+#include "sti_vtg.h"
+
+/* Firmware name */
+#define HQVDP_FMW_NAME          "hqvdp-stih407.bin"
+
+/* Regs address */
+#define HQVDP_DMEM              0x00000000               /* 0x00000000 */
+#define HQVDP_PMEM              0x00040000               /* 0x00040000 */
+#define HQVDP_RD_PLUG           0x000E0000               /* 0x000E0000 */
+#define HQVDP_RD_PLUG_CONTROL   (HQVDP_RD_PLUG + 0x1000) /* 0x000E1000 */
+#define HQVDP_RD_PLUG_PAGE_SIZE (HQVDP_RD_PLUG + 0x1004) /* 0x000E1004 */
+#define HQVDP_RD_PLUG_MIN_OPC   (HQVDP_RD_PLUG + 0x1008) /* 0x000E1008 */
+#define HQVDP_RD_PLUG_MAX_OPC   (HQVDP_RD_PLUG + 0x100C) /* 0x000E100C */
+#define HQVDP_RD_PLUG_MAX_CHK   (HQVDP_RD_PLUG + 0x1010) /* 0x000E1010 */
+#define HQVDP_RD_PLUG_MAX_MSG   (HQVDP_RD_PLUG + 0x1014) /* 0x000E1014 */
+#define HQVDP_RD_PLUG_MIN_SPACE (HQVDP_RD_PLUG + 0x1018) /* 0x000E1018 */
+#define HQVDP_WR_PLUG           0x000E2000               /* 0x000E2000 */
+#define HQVDP_WR_PLUG_CONTROL   (HQVDP_WR_PLUG + 0x1000) /* 0x000E3000 */
+#define HQVDP_WR_PLUG_PAGE_SIZE (HQVDP_WR_PLUG + 0x1004) /* 0x000E3004 */
+#define HQVDP_WR_PLUG_MIN_OPC   (HQVDP_WR_PLUG + 0x1008) /* 0x000E3008 */
+#define HQVDP_WR_PLUG_MAX_OPC   (HQVDP_WR_PLUG + 0x100C) /* 0x000E300C */
+#define HQVDP_WR_PLUG_MAX_CHK   (HQVDP_WR_PLUG + 0x1010) /* 0x000E3010 */
+#define HQVDP_WR_PLUG_MAX_MSG   (HQVDP_WR_PLUG + 0x1014) /* 0x000E3014 */
+#define HQVDP_WR_PLUG_MIN_SPACE (HQVDP_WR_PLUG + 0x1018) /* 0x000E3018 */
+#define HQVDP_MBX               0x000E4000               /* 0x000E4000 */
+#define HQVDP_MBX_IRQ_TO_XP70   (HQVDP_MBX + 0x0000)     /* 0x000E4000 */
+#define HQVDP_MBX_INFO_HOST     (HQVDP_MBX + 0x0004)     /* 0x000E4004 */
+#define HQVDP_MBX_IRQ_TO_HOST   (HQVDP_MBX + 0x0008)     /* 0x000E4008 */
+#define HQVDP_MBX_INFO_XP70     (HQVDP_MBX + 0x000C)     /* 0x000E400C */
+#define HQVDP_MBX_SW_RESET_CTRL (HQVDP_MBX + 0x0010)     /* 0x000E4010 */
+#define HQVDP_MBX_STARTUP_CTRL1 (HQVDP_MBX + 0x0014)     /* 0x000E4014 */
+#define HQVDP_MBX_STARTUP_CTRL2 (HQVDP_MBX + 0x0018)     /* 0x000E4018 */
+#define HQVDP_MBX_GP_STATUS     (HQVDP_MBX + 0x001C)     /* 0x000E401C */
+#define HQVDP_MBX_NEXT_CMD      (HQVDP_MBX + 0x0020)     /* 0x000E4020 */
+#define HQVDP_MBX_CURRENT_CMD   (HQVDP_MBX + 0x0024)     /* 0x000E4024 */
+#define HQVDP_MBX_SOFT_VSYNC    (HQVDP_MBX + 0x0028)     /* 0x000E4028 */
+
+/* Plugs config */
+#define PLUG_CONTROL_ENABLE     0x00000001
+#define PLUG_PAGE_SIZE_256      0x00000002
+#define PLUG_MIN_OPC_8          0x00000003
+#define PLUG_MAX_OPC_64         0x00000006
+#define PLUG_MAX_CHK_2X         0x00000001
+#define PLUG_MAX_MSG_1X         0x00000000
+#define PLUG_MIN_SPACE_1        0x00000000
+
+/* SW reset CTRL */
+#define SW_RESET_CTRL_FULL      BIT(0)
+#define SW_RESET_CTRL_CORE      BIT(1)
+
+/* Startup ctrl 1 */
+#define STARTUP_CTRL1_RST_DONE  BIT(0)
+#define STARTUP_CTRL1_AUTH_IDLE BIT(2)
+
+/* Startup ctrl 2 */
+#define STARTUP_CTRL2_FETCH_EN  BIT(1)
+
+/* Info xP70 */
+#define INFO_XP70_FW_READY      BIT(15)
+#define INFO_XP70_FW_PROCESSING BIT(14)
+#define INFO_XP70_FW_INITQUEUES BIT(13)
+
+/* SOFT_VSYNC */
+#define SOFT_VSYNC_HW           0x00000000
+#define SOFT_VSYNC_SW_CMD       0x00000001
+#define SOFT_VSYNC_SW_CTRL_IRQ  0x00000003
+
+/* Reset & boot poll config */
+#define POLL_MAX_ATTEMPT        50
+#define POLL_DELAY_MS           20
+
+#define SCALE_FACTOR            8192
+#define SCALE_MAX_FOR_LEG_LUT_F 4096
+#define SCALE_MAX_FOR_LEG_LUT_E 4915
+#define SCALE_MAX_FOR_LEG_LUT_D 6654
+#define SCALE_MAX_FOR_LEG_LUT_C 8192
+
+enum sti_hvsrc_orient {
+	HVSRC_HORI,
+	HVSRC_VERT
+};
+
+/* Command structures */
+struct sti_hqvdp_top {
+	u32 config;
+	u32 mem_format;
+	u32 current_luma;
+	u32 current_enh_luma;
+	u32 current_right_luma;
+	u32 current_enh_right_luma;
+	u32 current_chroma;
+	u32 current_enh_chroma;
+	u32 current_right_chroma;
+	u32 current_enh_right_chroma;
+	u32 output_luma;
+	u32 output_chroma;
+	u32 luma_src_pitch;
+	u32 luma_enh_src_pitch;
+	u32 luma_right_src_pitch;
+	u32 luma_enh_right_src_pitch;
+	u32 chroma_src_pitch;
+	u32 chroma_enh_src_pitch;
+	u32 chroma_right_src_pitch;
+	u32 chroma_enh_right_src_pitch;
+	u32 luma_processed_pitch;
+	u32 chroma_processed_pitch;
+	u32 input_frame_size;
+	u32 input_viewport_ori;
+	u32 input_viewport_ori_right;
+	u32 input_viewport_size;
+	u32 left_view_border_width;
+	u32 right_view_border_width;
+	u32 left_view_3d_offset_width;
+	u32 right_view_3d_offset_width;
+	u32 side_stripe_color;
+	u32 crc_reset_ctrl;
+};
+
+/* Configs for interlaced : no IT, no pass thru, 3 fields */
+#define TOP_CONFIG_INTER_BTM            0x00000000
+#define TOP_CONFIG_INTER_TOP            0x00000002
+
+/* Config for progressive : no IT, no pass thru, 3 fields */
+#define TOP_CONFIG_PROGRESSIVE          0x00000001
+
+/* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */
+#define TOP_MEM_FORMAT_DFLT             0x00018060
+
+/* Min/Max size */
+#define MAX_WIDTH                       0x1FFF
+#define MAX_HEIGHT                      0x0FFF
+#define MIN_WIDTH                       0x0030
+#define MIN_HEIGHT                      0x0010
+
+struct sti_hqvdp_vc1re {
+	u32 ctrl_prv_csdi;
+	u32 ctrl_cur_csdi;
+	u32 ctrl_nxt_csdi;
+	u32 ctrl_cur_fmd;
+	u32 ctrl_nxt_fmd;
+};
+
+struct sti_hqvdp_fmd {
+	u32 config;
+	u32 viewport_ori;
+	u32 viewport_size;
+	u32 next_next_luma;
+	u32 next_next_right_luma;
+	u32 next_next_next_luma;
+	u32 next_next_next_right_luma;
+	u32 threshold_scd;
+	u32 threshold_rfd;
+	u32 threshold_move;
+	u32 threshold_cfd;
+};
+
+struct sti_hqvdp_csdi {
+	u32 config;
+	u32 config2;
+	u32 dcdi_config;
+	u32 prev_luma;
+	u32 prev_enh_luma;
+	u32 prev_right_luma;
+	u32 prev_enh_right_luma;
+	u32 next_luma;
+	u32 next_enh_luma;
+	u32 next_right_luma;
+	u32 next_enh_right_luma;
+	u32 prev_chroma;
+	u32 prev_enh_chroma;
+	u32 prev_right_chroma;
+	u32 prev_enh_right_chroma;
+	u32 next_chroma;
+	u32 next_enh_chroma;
+	u32 next_right_chroma;
+	u32 next_enh_right_chroma;
+	u32 prev_motion;
+	u32 prev_right_motion;
+	u32 cur_motion;
+	u32 cur_right_motion;
+	u32 next_motion;
+	u32 next_right_motion;
+};
+
+/* Config for progressive: by pass */
+#define CSDI_CONFIG_PROG                0x00000000
+/* Config for directional deinterlacing without motion */
+#define CSDI_CONFIG_INTER_DIR           0x00000016
+/* Additional configs for fader, blender, motion,... deinterlace algorithms */
+#define CSDI_CONFIG2_DFLT               0x000001B3
+#define CSDI_DCDI_CONFIG_DFLT           0x00203803
+
+struct sti_hqvdp_hvsrc {
+	u32 hor_panoramic_ctrl;
+	u32 output_picture_size;
+	u32 init_horizontal;
+	u32 init_vertical;
+	u32 param_ctrl;
+	u32 yh_coef[NB_COEF];
+	u32 ch_coef[NB_COEF];
+	u32 yv_coef[NB_COEF];
+	u32 cv_coef[NB_COEF];
+	u32 hori_shift;
+	u32 vert_shift;
+};
+
+/* Default ParamCtrl: all controls enabled */
+#define HVSRC_PARAM_CTRL_DFLT           0xFFFFFFFF
+
+struct sti_hqvdp_iqi {
+	u32 config;
+	u32 demo_wind_size;
+	u32 pk_config;
+	u32 coeff0_coeff1;
+	u32 coeff2_coeff3;
+	u32 coeff4;
+	u32 pk_lut;
+	u32 pk_gain;
+	u32 pk_coring_level;
+	u32 cti_config;
+	u32 le_config;
+	u32 le_lut[64];
+	u32 con_bri;
+	u32 sat_gain;
+	u32 pxf_conf;
+	u32 default_color;
+};
+
+/* Default Config : IQI bypassed */
+#define IQI_CONFIG_DFLT                 0x00000001
+/* Default Contrast & Brightness gain = 256 */
+#define IQI_CON_BRI_DFLT                0x00000100
+/* Default Saturation gain = 256 */
+#define IQI_SAT_GAIN_DFLT               0x00000100
+/* Default PxfConf : P2I bypassed */
+#define IQI_PXF_CONF_DFLT               0x00000001
+
+struct sti_hqvdp_top_status {
+	u32 processing_time;
+	u32 input_y_crc;
+	u32 input_uv_crc;
+};
+
+struct sti_hqvdp_fmd_status {
+	u32 fmd_repeat_move_status;
+	u32 fmd_scene_count_status;
+	u32 cfd_sum;
+	u32 field_sum;
+	u32 next_y_fmd_crc;
+	u32 next_next_y_fmd_crc;
+	u32 next_next_next_y_fmd_crc;
+};
+
+struct sti_hqvdp_csdi_status {
+	u32 prev_y_csdi_crc;
+	u32 cur_y_csdi_crc;
+	u32 next_y_csdi_crc;
+	u32 prev_uv_csdi_crc;
+	u32 cur_uv_csdi_crc;
+	u32 next_uv_csdi_crc;
+	u32 y_csdi_crc;
+	u32 uv_csdi_crc;
+	u32 uv_cup_crc;
+	u32 mot_csdi_crc;
+	u32 mot_cur_csdi_crc;
+	u32 mot_prev_csdi_crc;
+};
+
+struct sti_hqvdp_hvsrc_status {
+	u32 y_hvsrc_crc;
+	u32 u_hvsrc_crc;
+	u32 v_hvsrc_crc;
+};
+
+struct sti_hqvdp_iqi_status {
+	u32 pxf_it_status;
+	u32 y_iqi_crc;
+	u32 u_iqi_crc;
+	u32 v_iqi_crc;
+};
+
+/* Main commands. We use 2 commands one being processed by the firmware, one
+ * ready to be fetched upon next Vsync*/
+#define NB_VDP_CMD	2
+
+struct sti_hqvdp_cmd {
+	struct sti_hqvdp_top top;
+	struct sti_hqvdp_vc1re vc1re;
+	struct sti_hqvdp_fmd fmd;
+	struct sti_hqvdp_csdi csdi;
+	struct sti_hqvdp_hvsrc hvsrc;
+	struct sti_hqvdp_iqi iqi;
+	struct sti_hqvdp_top_status top_status;
+	struct sti_hqvdp_fmd_status fmd_status;
+	struct sti_hqvdp_csdi_status csdi_status;
+	struct sti_hqvdp_hvsrc_status hvsrc_status;
+	struct sti_hqvdp_iqi_status iqi_status;
+};
+
+/*
+ * STI HQVDP structure
+ *
+ * @dev:               driver device
+ * @drm_dev:           the drm device
+ * @regs:              registers
+ * @plane:             plane structure for hqvdp it self
+ * @clk:               IP clock
+ * @clk_pix_main:      pix main clock
+ * @reset:             reset control
+ * @vtg_nb:            notifier to handle VTG Vsync
+ * @btm_field_pending: is there any bottom field (interlaced frame) to display
+ * @hqvdp_cmd:         buffer of commands
+ * @hqvdp_cmd_paddr:   physical address of hqvdp_cmd
+ * @vtg:               vtg for main data path
+ * @xp70_initialized:  true if xp70 is already initialized
+ * @vtg_registered:    true if registered to VTG
+ */
+struct sti_hqvdp {
+	struct device *dev;
+	struct drm_device *drm_dev;
+	void __iomem *regs;
+	struct sti_plane plane;
+	struct clk *clk;
+	struct clk *clk_pix_main;
+	struct reset_control *reset;
+	struct notifier_block vtg_nb;
+	bool btm_field_pending;
+	void *hqvdp_cmd;
+	u32 hqvdp_cmd_paddr;
+	struct sti_vtg *vtg;
+	bool xp70_initialized;
+	bool vtg_registered;
+};
+
+#define to_sti_hqvdp(x) container_of(x, struct sti_hqvdp, plane)
+
+static const uint32_t hqvdp_supported_formats[] = {
+	DRM_FORMAT_NV12,
+};
+
+/**
+ * sti_hqvdp_get_free_cmd
+ * @hqvdp: hqvdp structure
+ *
+ * Look for a hqvdp_cmd that is not being used (or about to be used) by the FW.
+ *
+ * RETURNS:
+ * the offset of the command to be used.
+ * -1 in error cases
+ */
+static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
+{
+	u32 curr_cmd, next_cmd;
+	u32 cmd = hqvdp->hqvdp_cmd_paddr;
+	int i;
+
+	curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
+	next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+	for (i = 0; i < NB_VDP_CMD; i++) {
+		if ((cmd != curr_cmd) && (cmd != next_cmd))
+			return i * sizeof(struct sti_hqvdp_cmd);
+		cmd += sizeof(struct sti_hqvdp_cmd);
+	}
+
+	return -1;
+}
+
+/**
+ * sti_hqvdp_get_curr_cmd
+ * @hqvdp: hqvdp structure
+ *
+ * Look for the hqvdp_cmd that is being used by the FW.
+ *
+ * RETURNS:
+ *  the offset of the command to be used.
+ * -1 in error cases
+ */
+static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp)
+{
+	u32 curr_cmd;
+	u32 cmd = hqvdp->hqvdp_cmd_paddr;
+	unsigned int i;
+
+	curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
+
+	for (i = 0; i < NB_VDP_CMD; i++) {
+		if (cmd == curr_cmd)
+			return i * sizeof(struct sti_hqvdp_cmd);
+
+		cmd += sizeof(struct sti_hqvdp_cmd);
+	}
+
+	return -1;
+}
+
+/**
+ * sti_hqvdp_get_next_cmd
+ * @hqvdp: hqvdp structure
+ *
+ * Look for the next hqvdp_cmd that will be used by the FW.
+ *
+ * RETURNS:
+ *  the offset of the next command that will be used.
+ * -1 in error cases
+ */
+static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp)
+{
+	int next_cmd;
+	dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
+	unsigned int i;
+
+	next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+	for (i = 0; i < NB_VDP_CMD; i++) {
+		if (cmd == next_cmd)
+			return i * sizeof(struct sti_hqvdp_cmd);
+
+		cmd += sizeof(struct sti_hqvdp_cmd);
+	}
+
+	return -1;
+}
+
+#define DBGFS_DUMP(reg) seq_printf(s, "\n  %-25s 0x%08X", #reg, \
+				   readl(hqvdp->regs + reg))
+
+static const char *hqvdp_dbg_get_lut(u32 *coef)
+{
+	if (!memcmp(coef, coef_lut_a_legacy, 16))
+		return "LUT A";
+	if (!memcmp(coef, coef_lut_b, 16))
+		return "LUT B";
+	if (!memcmp(coef, coef_lut_c_y_legacy, 16))
+		return "LUT C Y";
+	if (!memcmp(coef, coef_lut_c_c_legacy, 16))
+		return "LUT C C";
+	if (!memcmp(coef, coef_lut_d_y_legacy, 16))
+		return "LUT D Y";
+	if (!memcmp(coef, coef_lut_d_c_legacy, 16))
+		return "LUT D C";
+	if (!memcmp(coef, coef_lut_e_y_legacy, 16))
+		return "LUT E Y";
+	if (!memcmp(coef, coef_lut_e_c_legacy, 16))
+		return "LUT E C";
+	if (!memcmp(coef, coef_lut_f_y_legacy, 16))
+		return "LUT F Y";
+	if (!memcmp(coef, coef_lut_f_c_legacy, 16))
+		return "LUT F C";
+	return "<UNKNOWN>";
+}
+
+static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c)
+{
+	int src_w, src_h, dst_w, dst_h;
+
+	seq_puts(s, "\n\tTOP:");
+	seq_printf(s, "\n\t %-20s 0x%08X", "Config", c->top.config);
+	switch (c->top.config) {
+	case TOP_CONFIG_PROGRESSIVE:
+		seq_puts(s, "\tProgressive");
+		break;
+	case TOP_CONFIG_INTER_TOP:
+		seq_puts(s, "\tInterlaced, top field");
+		break;
+	case TOP_CONFIG_INTER_BTM:
+		seq_puts(s, "\tInterlaced, bottom field");
+		break;
+	default:
+		seq_puts(s, "\t<UNKNOWN>");
+		break;
+	}
+
+	seq_printf(s, "\n\t %-20s 0x%08X", "MemFormat", c->top.mem_format);
+	seq_printf(s, "\n\t %-20s 0x%08X", "CurrentY", c->top.current_luma);
+	seq_printf(s, "\n\t %-20s 0x%08X", "CurrentC", c->top.current_chroma);
+	seq_printf(s, "\n\t %-20s 0x%08X", "YSrcPitch", c->top.luma_src_pitch);
+	seq_printf(s, "\n\t %-20s 0x%08X", "CSrcPitch",
+		   c->top.chroma_src_pitch);
+	seq_printf(s, "\n\t %-20s 0x%08X", "InputFrameSize",
+		   c->top.input_frame_size);
+	seq_printf(s, "\t%dx%d",
+		   c->top.input_frame_size & 0x0000FFFF,
+		   c->top.input_frame_size >> 16);
+	seq_printf(s, "\n\t %-20s 0x%08X", "InputViewportSize",
+		   c->top.input_viewport_size);
+	src_w = c->top.input_viewport_size & 0x0000FFFF;
+	src_h = c->top.input_viewport_size >> 16;
+	seq_printf(s, "\t%dx%d", src_w, src_h);
+
+	seq_puts(s, "\n\tHVSRC:");
+	seq_printf(s, "\n\t %-20s 0x%08X", "OutputPictureSize",
+		   c->hvsrc.output_picture_size);
+	dst_w = c->hvsrc.output_picture_size & 0x0000FFFF;
+	dst_h = c->hvsrc.output_picture_size >> 16;
+	seq_printf(s, "\t%dx%d", dst_w, dst_h);
+	seq_printf(s, "\n\t %-20s 0x%08X", "ParamCtrl", c->hvsrc.param_ctrl);
+
+	seq_printf(s, "\n\t %-20s %s", "yh_coef",
+		   hqvdp_dbg_get_lut(c->hvsrc.yh_coef));
+	seq_printf(s, "\n\t %-20s %s", "ch_coef",
+		   hqvdp_dbg_get_lut(c->hvsrc.ch_coef));
+	seq_printf(s, "\n\t %-20s %s", "yv_coef",
+		   hqvdp_dbg_get_lut(c->hvsrc.yv_coef));
+	seq_printf(s, "\n\t %-20s %s", "cv_coef",
+		   hqvdp_dbg_get_lut(c->hvsrc.cv_coef));
+
+	seq_printf(s, "\n\t %-20s", "ScaleH");
+	if (dst_w > src_w)
+		seq_printf(s, " %d/1", dst_w / src_w);
+	else
+		seq_printf(s, " 1/%d", src_w / dst_w);
+
+	seq_printf(s, "\n\t %-20s", "tScaleV");
+	if (dst_h > src_h)
+		seq_printf(s, " %d/1", dst_h / src_h);
+	else
+		seq_printf(s, " 1/%d", src_h / dst_h);
+
+	seq_puts(s, "\n\tCSDI:");
+	seq_printf(s, "\n\t %-20s 0x%08X\t", "Config", c->csdi.config);
+	switch (c->csdi.config) {
+	case CSDI_CONFIG_PROG:
+		seq_puts(s, "Bypass");
+		break;
+	case CSDI_CONFIG_INTER_DIR:
+		seq_puts(s, "Deinterlace, directional");
+		break;
+	default:
+		seq_puts(s, "<UNKNOWN>");
+		break;
+	}
+
+	seq_printf(s, "\n\t %-20s 0x%08X", "Config2", c->csdi.config2);
+	seq_printf(s, "\n\t %-20s 0x%08X", "DcdiConfig", c->csdi.dcdi_config);
+}
+
+static int hqvdp_dbg_show(struct seq_file *s, void *data)
+{
+	struct drm_info_node *node = s->private;
+	struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data;
+	int cmd, cmd_offset, infoxp70;
+	void *virt;
+
+	seq_printf(s, "%s: (vaddr = 0x%p)",
+		   sti_plane_to_str(&hqvdp->plane), hqvdp->regs);
+
+	DBGFS_DUMP(HQVDP_MBX_IRQ_TO_XP70);
+	DBGFS_DUMP(HQVDP_MBX_INFO_HOST);
+	DBGFS_DUMP(HQVDP_MBX_IRQ_TO_HOST);
+	DBGFS_DUMP(HQVDP_MBX_INFO_XP70);
+	infoxp70 = readl(hqvdp->regs + HQVDP_MBX_INFO_XP70);
+	seq_puts(s, "\tFirmware state: ");
+	if (infoxp70 & INFO_XP70_FW_READY)
+		seq_puts(s, "idle and ready");
+	else if (infoxp70 & INFO_XP70_FW_PROCESSING)
+		seq_puts(s, "processing a picture");
+	else if (infoxp70 & INFO_XP70_FW_INITQUEUES)
+		seq_puts(s, "programming queues");
+	else
+		seq_puts(s, "NOT READY");
+
+	DBGFS_DUMP(HQVDP_MBX_SW_RESET_CTRL);
+	DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL1);
+	if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
+					& STARTUP_CTRL1_RST_DONE)
+		seq_puts(s, "\tReset is done");
+	else
+		seq_puts(s, "\tReset is NOT done");
+	DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL2);
+	if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2)
+					& STARTUP_CTRL2_FETCH_EN)
+		seq_puts(s, "\tFetch is enabled");
+	else
+		seq_puts(s, "\tFetch is NOT enabled");
+	DBGFS_DUMP(HQVDP_MBX_GP_STATUS);
+	DBGFS_DUMP(HQVDP_MBX_NEXT_CMD);
+	DBGFS_DUMP(HQVDP_MBX_CURRENT_CMD);
+	DBGFS_DUMP(HQVDP_MBX_SOFT_VSYNC);
+	if (!(readl(hqvdp->regs + HQVDP_MBX_SOFT_VSYNC) & 3))
+		seq_puts(s, "\tHW Vsync");
+	else
+		seq_puts(s, "\tSW Vsync ?!?!");
+
+	/* Last command */
+	cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
+	cmd_offset = sti_hqvdp_get_curr_cmd(hqvdp);
+	if (cmd_offset == -1) {
+		seq_puts(s, "\n\n  Last command: unknown");
+	} else {
+		virt = hqvdp->hqvdp_cmd + cmd_offset;
+		seq_printf(s, "\n\n  Last command: address @ 0x%x (0x%p)",
+			   cmd, virt);
+		hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
+	}
+
+	/* Next command */
+	cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+	cmd_offset = sti_hqvdp_get_next_cmd(hqvdp);
+	if (cmd_offset == -1) {
+		seq_puts(s, "\n\n  Next command: unknown");
+	} else {
+		virt = hqvdp->hqvdp_cmd + cmd_offset;
+		seq_printf(s, "\n\n  Next command address: @ 0x%x (0x%p)",
+			   cmd, virt);
+		hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
+	}
+
+	seq_putc(s, '\n');
+	return 0;
+}
+
+static struct drm_info_list hqvdp_debugfs_files[] = {
+	{ "hqvdp", hqvdp_dbg_show, 0, NULL },
+};
+
+static void hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
+		hqvdp_debugfs_files[i].data = hqvdp;
+
+	drm_debugfs_create_files(hqvdp_debugfs_files,
+				 ARRAY_SIZE(hqvdp_debugfs_files),
+				 minor->debugfs_root, minor);
+}
+
+/**
+ * sti_hqvdp_update_hvsrc
+ * @orient: horizontal or vertical
+ * @scale:  scaling/zoom factor
+ * @hvsrc:  the structure containing the LUT coef
+ *
+ * Update the Y and C Lut coef, as well as the shift param
+ *
+ * RETURNS:
+ * None.
+ */
+static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale,
+		struct sti_hqvdp_hvsrc *hvsrc)
+{
+	const int *coef_c, *coef_y;
+	int shift_c, shift_y;
+
+	/* Get the appropriate coef tables */
+	if (scale < SCALE_MAX_FOR_LEG_LUT_F) {
+		coef_y = coef_lut_f_y_legacy;
+		coef_c = coef_lut_f_c_legacy;
+		shift_y = SHIFT_LUT_F_Y_LEGACY;
+		shift_c = SHIFT_LUT_F_C_LEGACY;
+	} else if (scale < SCALE_MAX_FOR_LEG_LUT_E) {
+		coef_y = coef_lut_e_y_legacy;
+		coef_c = coef_lut_e_c_legacy;
+		shift_y = SHIFT_LUT_E_Y_LEGACY;
+		shift_c = SHIFT_LUT_E_C_LEGACY;
+	} else if (scale < SCALE_MAX_FOR_LEG_LUT_D) {
+		coef_y = coef_lut_d_y_legacy;
+		coef_c = coef_lut_d_c_legacy;
+		shift_y = SHIFT_LUT_D_Y_LEGACY;
+		shift_c = SHIFT_LUT_D_C_LEGACY;
+	} else if (scale < SCALE_MAX_FOR_LEG_LUT_C) {
+		coef_y = coef_lut_c_y_legacy;
+		coef_c = coef_lut_c_c_legacy;
+		shift_y = SHIFT_LUT_C_Y_LEGACY;
+		shift_c = SHIFT_LUT_C_C_LEGACY;
+	} else if (scale == SCALE_MAX_FOR_LEG_LUT_C) {
+		coef_y = coef_c = coef_lut_b;
+		shift_y = shift_c = SHIFT_LUT_B;
+	} else {
+		coef_y = coef_c = coef_lut_a_legacy;
+		shift_y = shift_c = SHIFT_LUT_A_LEGACY;
+	}
+
+	if (orient == HVSRC_HORI) {
+		hvsrc->hori_shift = (shift_c << 16) | shift_y;
+		memcpy(hvsrc->yh_coef, coef_y, sizeof(hvsrc->yh_coef));
+		memcpy(hvsrc->ch_coef, coef_c, sizeof(hvsrc->ch_coef));
+	} else {
+		hvsrc->vert_shift = (shift_c << 16) | shift_y;
+		memcpy(hvsrc->yv_coef, coef_y, sizeof(hvsrc->yv_coef));
+		memcpy(hvsrc->cv_coef, coef_c, sizeof(hvsrc->cv_coef));
+	}
+}
+
+/**
+ * sti_hqvdp_check_hw_scaling
+ * @hqvdp: hqvdp pointer
+ * @mode: display mode with timing constraints
+ * @src_w: source width
+ * @src_h: source height
+ * @dst_w: destination width
+ * @dst_h: destination height
+ *
+ * Check if the HW is able to perform the scaling request
+ * The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where:
+ *   Zy = OutputHeight / InputHeight
+ *   LFW = (Tx * IPClock) / (MaxNbCycles * Cp)
+ *     Tx : Total video mode horizontal resolution
+ *     IPClock : HQVDP IP clock (Mhz)
+ *     MaxNbCycles: max(InputWidth, OutputWidth)
+ *     Cp: Video mode pixel clock (Mhz)
+ *
+ * RETURNS:
+ * True if the HW can scale.
+ */
+static bool sti_hqvdp_check_hw_scaling(struct sti_hqvdp *hqvdp,
+				       struct drm_display_mode *mode,
+				       int src_w, int src_h,
+				       int dst_w, int dst_h)
+{
+	unsigned long lfw;
+	unsigned int inv_zy;
+
+	lfw = mode->htotal * (clk_get_rate(hqvdp->clk) / 1000000);
+	lfw /= max(src_w, dst_w) * mode->clock / 1000;
+
+	inv_zy = DIV_ROUND_UP(src_h, dst_h);
+
+	return (inv_zy <= lfw) ? true : false;
+}
+
+/**
+ * sti_hqvdp_disable
+ * @hqvdp: hqvdp pointer
+ *
+ * Disables the HQVDP plane
+ */
+static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp)
+{
+	int i;
+
+	DRM_DEBUG_DRIVER("%s\n", sti_plane_to_str(&hqvdp->plane));
+
+	/* Unregister VTG Vsync callback */
+	if (sti_vtg_unregister_client(hqvdp->vtg, &hqvdp->vtg_nb))
+		DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
+
+	/* Set next cmd to NULL */
+	writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+	for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
+		if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
+				& INFO_XP70_FW_READY)
+			break;
+		msleep(POLL_DELAY_MS);
+	}
+
+	/* VTG can stop now */
+	clk_disable_unprepare(hqvdp->clk_pix_main);
+
+	if (i == POLL_MAX_ATTEMPT)
+		DRM_ERROR("XP70 could not revert to idle\n");
+
+	hqvdp->plane.status = STI_PLANE_DISABLED;
+	hqvdp->vtg_registered = false;
+}
+
+/**
+ * sti_hqvdp_vtg_cb
+ * @nb: notifier block
+ * @evt: event message
+ * @data: private data
+ *
+ * Handle VTG Vsync event, display pending bottom field
+ *
+ * RETURNS:
+ * 0 on success.
+ */
+static int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data)
+{
+	struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb);
+	int btm_cmd_offset, top_cmd_offest;
+	struct sti_hqvdp_cmd *btm_cmd, *top_cmd;
+
+	if ((evt != VTG_TOP_FIELD_EVENT) && (evt != VTG_BOTTOM_FIELD_EVENT)) {
+		DRM_DEBUG_DRIVER("Unknown event\n");
+		return 0;
+	}
+
+	if (hqvdp->plane.status == STI_PLANE_FLUSHING) {
+		/* disable need to be synchronize on vsync event */
+		DRM_DEBUG_DRIVER("Vsync event received => disable %s\n",
+				 sti_plane_to_str(&hqvdp->plane));
+
+		sti_hqvdp_disable(hqvdp);
+	}
+
+	if (hqvdp->btm_field_pending) {
+		/* Create the btm field command from the current one */
+		btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
+		top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp);
+		if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) {
+			DRM_DEBUG_DRIVER("Warning: no cmd, will skip field\n");
+			return -EBUSY;
+		}
+
+		btm_cmd = hqvdp->hqvdp_cmd + btm_cmd_offset;
+		top_cmd = hqvdp->hqvdp_cmd + top_cmd_offest;
+
+		memcpy(btm_cmd, top_cmd, sizeof(*btm_cmd));
+
+		btm_cmd->top.config = TOP_CONFIG_INTER_BTM;
+		btm_cmd->top.current_luma +=
+				btm_cmd->top.luma_src_pitch / 2;
+		btm_cmd->top.current_chroma +=
+				btm_cmd->top.chroma_src_pitch / 2;
+
+		/* Post the command to mailbox */
+		writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset,
+				hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+		hqvdp->btm_field_pending = false;
+
+		dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
+				__func__, hqvdp->hqvdp_cmd_paddr);
+
+		sti_plane_update_fps(&hqvdp->plane, false, true);
+	}
+
+	return 0;
+}
+
+static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
+{
+	int size;
+	dma_addr_t dma_addr;
+
+	hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb;
+
+	/* Allocate memory for the VDP commands */
+	size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
+	hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size,
+					&dma_addr,
+					GFP_KERNEL | GFP_DMA);
+	if (!hqvdp->hqvdp_cmd) {
+		DRM_ERROR("Failed to allocate memory for VDP cmd\n");
+		return;
+	}
+
+	hqvdp->hqvdp_cmd_paddr = (u32)dma_addr;
+	memset(hqvdp->hqvdp_cmd, 0, size);
+}
+
+static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp)
+{
+	/* Configure Plugs (same for RD & WR) */
+	writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_RD_PLUG_PAGE_SIZE);
+	writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_RD_PLUG_MIN_OPC);
+	writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_RD_PLUG_MAX_OPC);
+	writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_RD_PLUG_MAX_CHK);
+	writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_RD_PLUG_MAX_MSG);
+	writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_RD_PLUG_MIN_SPACE);
+	writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_RD_PLUG_CONTROL);
+
+	writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_WR_PLUG_PAGE_SIZE);
+	writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_WR_PLUG_MIN_OPC);
+	writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_WR_PLUG_MAX_OPC);
+	writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_WR_PLUG_MAX_CHK);
+	writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_WR_PLUG_MAX_MSG);
+	writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_WR_PLUG_MIN_SPACE);
+	writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_WR_PLUG_CONTROL);
+}
+
+/**
+ * sti_hqvdp_start_xp70
+ * @hqvdp: hqvdp pointer
+ *
+ * Run the xP70 initialization sequence
+ */
+static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp)
+{
+	const struct firmware *firmware;
+	u32 *fw_rd_plug, *fw_wr_plug, *fw_pmem, *fw_dmem;
+	u8 *data;
+	int i;
+	struct fw_header {
+		int rd_size;
+		int wr_size;
+		int pmem_size;
+		int dmem_size;
+	} *header;
+
+	DRM_DEBUG_DRIVER("\n");
+
+	if (hqvdp->xp70_initialized) {
+		DRM_DEBUG_DRIVER("HQVDP XP70 already initialized\n");
+		return;
+	}
+
+	/* Request firmware */
+	if (request_firmware(&firmware, HQVDP_FMW_NAME, hqvdp->dev)) {
+		DRM_ERROR("Can't get HQVDP firmware\n");
+		return;
+	}
+
+	/* Check firmware parts */
+	if (!firmware) {
+		DRM_ERROR("Firmware not available\n");
+		return;
+	}
+
+	header = (struct fw_header *)firmware->data;
+	if (firmware->size < sizeof(*header)) {
+		DRM_ERROR("Invalid firmware size (%zu)\n", firmware->size);
+		goto out;
+	}
+	if ((sizeof(*header) + header->rd_size + header->wr_size +
+		header->pmem_size + header->dmem_size) != firmware->size) {
+		DRM_ERROR("Invalid fmw structure (%zu+%d+%d+%d+%d != %zu)\n",
+			  sizeof(*header), header->rd_size, header->wr_size,
+			  header->pmem_size, header->dmem_size,
+			  firmware->size);
+		goto out;
+	}
+
+	data = (u8 *)firmware->data;
+	data += sizeof(*header);
+	fw_rd_plug = (void *)data;
+	data += header->rd_size;
+	fw_wr_plug = (void *)data;
+	data += header->wr_size;
+	fw_pmem = (void *)data;
+	data += header->pmem_size;
+	fw_dmem = (void *)data;
+
+	/* Enable clock */
+	if (clk_prepare_enable(hqvdp->clk))
+		DRM_ERROR("Failed to prepare/enable HQVDP clk\n");
+
+	/* Reset */
+	writel(SW_RESET_CTRL_FULL, hqvdp->regs + HQVDP_MBX_SW_RESET_CTRL);
+
+	for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
+		if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
+				& STARTUP_CTRL1_RST_DONE)
+			break;
+		msleep(POLL_DELAY_MS);
+	}
+	if (i == POLL_MAX_ATTEMPT) {
+		DRM_ERROR("Could not reset\n");
+		clk_disable_unprepare(hqvdp->clk);
+		goto out;
+	}
+
+	/* Init Read & Write plugs */
+	for (i = 0; i < header->rd_size / 4; i++)
+		writel(fw_rd_plug[i], hqvdp->regs + HQVDP_RD_PLUG + i * 4);
+	for (i = 0; i < header->wr_size / 4; i++)
+		writel(fw_wr_plug[i], hqvdp->regs + HQVDP_WR_PLUG + i * 4);
+
+	sti_hqvdp_init_plugs(hqvdp);
+
+	/* Authorize Idle Mode */
+	writel(STARTUP_CTRL1_AUTH_IDLE, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1);
+
+	/* Prevent VTG interruption during the boot */
+	writel(SOFT_VSYNC_SW_CTRL_IRQ, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
+	writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+	/* Download PMEM & DMEM */
+	for (i = 0; i < header->pmem_size / 4; i++)
+		writel(fw_pmem[i], hqvdp->regs + HQVDP_PMEM + i * 4);
+	for (i = 0; i < header->dmem_size / 4; i++)
+		writel(fw_dmem[i], hqvdp->regs + HQVDP_DMEM + i * 4);
+
+	/* Enable fetch */
+	writel(STARTUP_CTRL2_FETCH_EN, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2);
+
+	/* Wait end of boot */
+	for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
+		if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
+				& INFO_XP70_FW_READY)
+			break;
+		msleep(POLL_DELAY_MS);
+	}
+	if (i == POLL_MAX_ATTEMPT) {
+		DRM_ERROR("Could not boot\n");
+		clk_disable_unprepare(hqvdp->clk);
+		goto out;
+	}
+
+	/* Launch Vsync */
+	writel(SOFT_VSYNC_HW, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
+
+	DRM_INFO("HQVDP XP70 initialized\n");
+
+	hqvdp->xp70_initialized = true;
+
+out:
+	release_firmware(firmware);
+}
+
+static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
+				  struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
+										 drm_plane);
+	struct sti_plane *plane = to_sti_plane(drm_plane);
+	struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
+	struct drm_crtc *crtc = new_plane_state->crtc;
+	struct drm_framebuffer *fb = new_plane_state->fb;
+	struct drm_crtc_state *crtc_state;
+	struct drm_display_mode *mode;
+	int dst_x, dst_y, dst_w, dst_h;
+	int src_x, src_y, src_w, src_h;
+
+	/* no need for further checks if the plane is being disabled */
+	if (!crtc || !fb)
+		return 0;
+
+	crtc_state = drm_atomic_get_crtc_state(state, crtc);
+	mode = &crtc_state->mode;
+	dst_x = new_plane_state->crtc_x;
+	dst_y = new_plane_state->crtc_y;
+	dst_w = clamp_val(new_plane_state->crtc_w, 0, mode->hdisplay - dst_x);
+	dst_h = clamp_val(new_plane_state->crtc_h, 0, mode->vdisplay - dst_y);
+	/* src_x are in 16.16 format */
+	src_x = new_plane_state->src_x >> 16;
+	src_y = new_plane_state->src_y >> 16;
+	src_w = new_plane_state->src_w >> 16;
+	src_h = new_plane_state->src_h >> 16;
+
+	if (mode->clock && !sti_hqvdp_check_hw_scaling(hqvdp, mode,
+						       src_w, src_h,
+						       dst_w, dst_h)) {
+		DRM_ERROR("Scaling beyond HW capabilities\n");
+		return -EINVAL;
+	}
+
+	if (!drm_fb_dma_get_gem_obj(fb, 0)) {
+		DRM_ERROR("Can't get DMA GEM object for fb\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Input / output size
+	 * Align to upper even value
+	 */
+	dst_w = ALIGN(dst_w, 2);
+	dst_h = ALIGN(dst_h, 2);
+
+	if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
+	    (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
+	    (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
+	    (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
+		DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
+			  src_w, src_h,
+			  dst_w, dst_h);
+		return -EINVAL;
+	}
+
+	if (!hqvdp->xp70_initialized)
+		/* Start HQVDP XP70 coprocessor */
+		sti_hqvdp_start_xp70(hqvdp);
+
+	if (!hqvdp->vtg_registered) {
+		/* Prevent VTG shutdown */
+		if (clk_prepare_enable(hqvdp->clk_pix_main)) {
+			DRM_ERROR("Failed to prepare/enable pix main clk\n");
+			return -EINVAL;
+		}
+
+		/* Register VTG Vsync callback to handle bottom fields */
+		if (sti_vtg_register_client(hqvdp->vtg,
+					    &hqvdp->vtg_nb,
+					    crtc)) {
+			DRM_ERROR("Cannot register VTG notifier\n");
+			clk_disable_unprepare(hqvdp->clk_pix_main);
+			return -EINVAL;
+		}
+		hqvdp->vtg_registered = true;
+	}
+
+	DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
+		      crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
+		      drm_plane->base.id, sti_plane_to_str(plane));
+	DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
+		      sti_plane_to_str(plane),
+		      dst_w, dst_h, dst_x, dst_y,
+		      src_w, src_h, src_x, src_y);
+
+	return 0;
+}
+
+static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane,
+				    struct drm_atomic_state *state)
+{
+	struct drm_plane_state *oldstate = drm_atomic_get_old_plane_state(state,
+									  drm_plane);
+	struct drm_plane_state *newstate = drm_atomic_get_new_plane_state(state,
+									  drm_plane);
+	struct sti_plane *plane = to_sti_plane(drm_plane);
+	struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
+	struct drm_crtc *crtc = newstate->crtc;
+	struct drm_framebuffer *fb = newstate->fb;
+	struct drm_display_mode *mode;
+	int dst_x, dst_y, dst_w, dst_h;
+	int src_x, src_y, src_w, src_h;
+	struct drm_gem_dma_object *dma_obj;
+	struct sti_hqvdp_cmd *cmd;
+	int scale_h, scale_v;
+	int cmd_offset;
+
+	if (!crtc || !fb)
+		return;
+
+	if ((oldstate->fb == newstate->fb) &&
+	    (oldstate->crtc_x == newstate->crtc_x) &&
+	    (oldstate->crtc_y == newstate->crtc_y) &&
+	    (oldstate->crtc_w == newstate->crtc_w) &&
+	    (oldstate->crtc_h == newstate->crtc_h) &&
+	    (oldstate->src_x == newstate->src_x) &&
+	    (oldstate->src_y == newstate->src_y) &&
+	    (oldstate->src_w == newstate->src_w) &&
+	    (oldstate->src_h == newstate->src_h)) {
+		/* No change since last update, do not post cmd */
+		DRM_DEBUG_DRIVER("No change, not posting cmd\n");
+		plane->status = STI_PLANE_UPDATED;
+		return;
+	}
+
+	mode = &crtc->mode;
+	dst_x = newstate->crtc_x;
+	dst_y = newstate->crtc_y;
+	dst_w = clamp_val(newstate->crtc_w, 0, mode->hdisplay - dst_x);
+	dst_h = clamp_val(newstate->crtc_h, 0, mode->vdisplay - dst_y);
+	/* src_x are in 16.16 format */
+	src_x = newstate->src_x >> 16;
+	src_y = newstate->src_y >> 16;
+	src_w = newstate->src_w >> 16;
+	src_h = newstate->src_h >> 16;
+
+	cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
+	if (cmd_offset == -1) {
+		DRM_DEBUG_DRIVER("Warning: no cmd, will skip frame\n");
+		return;
+	}
+	cmd = hqvdp->hqvdp_cmd + cmd_offset;
+
+	/* Static parameters, defaulting to progressive mode */
+	cmd->top.config = TOP_CONFIG_PROGRESSIVE;
+	cmd->top.mem_format = TOP_MEM_FORMAT_DFLT;
+	cmd->hvsrc.param_ctrl = HVSRC_PARAM_CTRL_DFLT;
+	cmd->csdi.config = CSDI_CONFIG_PROG;
+
+	/* VC1RE, FMD bypassed : keep everything set to 0
+	 * IQI/P2I bypassed */
+	cmd->iqi.config = IQI_CONFIG_DFLT;
+	cmd->iqi.con_bri = IQI_CON_BRI_DFLT;
+	cmd->iqi.sat_gain = IQI_SAT_GAIN_DFLT;
+	cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT;
+
+	dma_obj = drm_fb_dma_get_gem_obj(fb, 0);
+
+	DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
+			 (char *)&fb->format->format,
+			 (unsigned long) dma_obj->dma_addr);
+
+	/* Buffer planes address */
+	cmd->top.current_luma = (u32) dma_obj->dma_addr + fb->offsets[0];
+	cmd->top.current_chroma = (u32) dma_obj->dma_addr + fb->offsets[1];
+
+	/* Pitches */
+	cmd->top.luma_processed_pitch = fb->pitches[0];
+	cmd->top.luma_src_pitch = fb->pitches[0];
+	cmd->top.chroma_processed_pitch = fb->pitches[1];
+	cmd->top.chroma_src_pitch = fb->pitches[1];
+
+	/* Input / output size
+	 * Align to upper even value */
+	dst_w = ALIGN(dst_w, 2);
+	dst_h = ALIGN(dst_h, 2);
+
+	cmd->top.input_viewport_size = src_h << 16 | src_w;
+	cmd->top.input_frame_size = src_h << 16 | src_w;
+	cmd->hvsrc.output_picture_size = dst_h << 16 | dst_w;
+	cmd->top.input_viewport_ori = src_y << 16 | src_x;
+
+	/* Handle interlaced */
+	if (fb->flags & DRM_MODE_FB_INTERLACED) {
+		/* Top field to display */
+		cmd->top.config = TOP_CONFIG_INTER_TOP;
+
+		/* Update pitches and vert size */
+		cmd->top.input_frame_size = (src_h / 2) << 16 | src_w;
+		cmd->top.luma_processed_pitch *= 2;
+		cmd->top.luma_src_pitch *= 2;
+		cmd->top.chroma_processed_pitch *= 2;
+		cmd->top.chroma_src_pitch *= 2;
+
+		/* Enable directional deinterlacing processing */
+		cmd->csdi.config = CSDI_CONFIG_INTER_DIR;
+		cmd->csdi.config2 = CSDI_CONFIG2_DFLT;
+		cmd->csdi.dcdi_config = CSDI_DCDI_CONFIG_DFLT;
+	}
+
+	/* Update hvsrc lut coef */
+	scale_h = SCALE_FACTOR * dst_w / src_w;
+	sti_hqvdp_update_hvsrc(HVSRC_HORI, scale_h, &cmd->hvsrc);
+
+	scale_v = SCALE_FACTOR * dst_h / src_h;
+	sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc);
+
+	writel(hqvdp->hqvdp_cmd_paddr + cmd_offset,
+	       hqvdp->regs + HQVDP_MBX_NEXT_CMD);
+
+	/* Interlaced : get ready to display the bottom field at next Vsync */
+	if (fb->flags & DRM_MODE_FB_INTERLACED)
+		hqvdp->btm_field_pending = true;
+
+	dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
+		__func__, hqvdp->hqvdp_cmd_paddr + cmd_offset);
+
+	sti_plane_update_fps(plane, true, true);
+
+	plane->status = STI_PLANE_UPDATED;
+}
+
+static void sti_hqvdp_atomic_disable(struct drm_plane *drm_plane,
+				     struct drm_atomic_state *state)
+{
+	struct drm_plane_state *oldstate = drm_atomic_get_old_plane_state(state,
+									  drm_plane);
+	struct sti_plane *plane = to_sti_plane(drm_plane);
+
+	if (!oldstate->crtc) {
+		DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
+				 drm_plane->base.id);
+		return;
+	}
+
+	DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
+			 oldstate->crtc->base.id,
+			 sti_mixer_to_str(to_sti_mixer(oldstate->crtc)),
+			 drm_plane->base.id, sti_plane_to_str(plane));
+
+	plane->status = STI_PLANE_DISABLING;
+}
+
+static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = {
+	.atomic_check = sti_hqvdp_atomic_check,
+	.atomic_update = sti_hqvdp_atomic_update,
+	.atomic_disable = sti_hqvdp_atomic_disable,
+};
+
+static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
+{
+	struct sti_plane *plane = to_sti_plane(drm_plane);
+	struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
+
+	hqvdp_debugfs_init(hqvdp, drm_plane->dev->primary);
+
+	return 0;
+}
+
+static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
+	.update_plane = drm_atomic_helper_update_plane,
+	.disable_plane = drm_atomic_helper_disable_plane,
+	.destroy = drm_plane_cleanup,
+	.reset = drm_atomic_helper_plane_reset,
+	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+	.late_register = sti_hqvdp_late_register,
+};
+
+static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev,
+					  struct device *dev, int desc)
+{
+	struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
+	int res;
+
+	hqvdp->plane.desc = desc;
+	hqvdp->plane.status = STI_PLANE_DISABLED;
+
+	sti_hqvdp_init(hqvdp);
+
+	res = drm_universal_plane_init(drm_dev, &hqvdp->plane.drm_plane, 1,
+				       &sti_hqvdp_plane_helpers_funcs,
+				       hqvdp_supported_formats,
+				       ARRAY_SIZE(hqvdp_supported_formats),
+				       NULL, DRM_PLANE_TYPE_OVERLAY, NULL);
+	if (res) {
+		DRM_ERROR("Failed to initialize universal plane\n");
+		return NULL;
+	}
+
+	drm_plane_helper_add(&hqvdp->plane.drm_plane, &sti_hqvdp_helpers_funcs);
+
+	sti_plane_init_property(&hqvdp->plane, DRM_PLANE_TYPE_OVERLAY);
+
+	return &hqvdp->plane.drm_plane;
+}
+
+static int sti_hqvdp_bind(struct device *dev, struct device *master, void *data)
+{
+	struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct drm_plane *plane;
+
+	DRM_DEBUG_DRIVER("\n");
+
+	hqvdp->drm_dev = drm_dev;
+
+	/* Create HQVDP plane once xp70 is initialized */
+	plane = sti_hqvdp_create(drm_dev, hqvdp->dev, STI_HQVDP_0);
+	if (!plane)
+		DRM_ERROR("Can't create HQVDP plane\n");
+
+	return 0;
+}
+
+static void sti_hqvdp_unbind(struct device *dev,
+		struct device *master, void *data)
+{
+	/* do nothing */
+}
+
+static const struct component_ops sti_hqvdp_ops = {
+	.bind = sti_hqvdp_bind,
+	.unbind = sti_hqvdp_unbind,
+};
+
+static int sti_hqvdp_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *vtg_np;
+	struct sti_hqvdp *hqvdp;
+	struct resource *res;
+
+	DRM_DEBUG_DRIVER("\n");
+
+	hqvdp = devm_kzalloc(dev, sizeof(*hqvdp), GFP_KERNEL);
+	if (!hqvdp) {
+		DRM_ERROR("Failed to allocate HQVDP context\n");
+		return -ENOMEM;
+	}
+
+	hqvdp->dev = dev;
+
+	/* Get Memory resources */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		DRM_ERROR("Get memory resource failed\n");
+		return -ENXIO;
+	}
+	hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res));
+	if (!hqvdp->regs) {
+		DRM_ERROR("Register mapping failed\n");
+		return -ENXIO;
+	}
+
+	/* Get clock resources */
+	hqvdp->clk = devm_clk_get(dev, "hqvdp");
+	hqvdp->clk_pix_main = devm_clk_get(dev, "pix_main");
+	if (IS_ERR(hqvdp->clk) || IS_ERR(hqvdp->clk_pix_main)) {
+		DRM_ERROR("Cannot get clocks\n");
+		return -ENXIO;
+	}
+
+	/* Get reset resources */
+	hqvdp->reset = devm_reset_control_get(dev, "hqvdp");
+	if (!IS_ERR(hqvdp->reset))
+		reset_control_deassert(hqvdp->reset);
+
+	vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0);
+	if (vtg_np)
+		hqvdp->vtg = of_vtg_find(vtg_np);
+	of_node_put(vtg_np);
+
+	platform_set_drvdata(pdev, hqvdp);
+
+	return component_add(&pdev->dev, &sti_hqvdp_ops);
+}
+
+static void sti_hqvdp_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &sti_hqvdp_ops);
+}
+
+static const struct of_device_id hqvdp_of_match[] = {
+	{ .compatible = "st,stih407-hqvdp", },
+	{ /* end node */ }
+};
+MODULE_DEVICE_TABLE(of, hqvdp_of_match);
+
+struct platform_driver sti_hqvdp_driver = {
+	.driver = {
+		.name = "sti-hqvdp",
+		.owner = THIS_MODULE,
+		.of_match_table = hqvdp_of_match,
+	},
+	.probe = sti_hqvdp_probe,
+	.remove_new = sti_hqvdp_remove,
+};
+
+MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
+MODULE_LICENSE("GPL");