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OpenCloudOS-Kernel/drivers/gpu/drm/meson/meson_viu.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2016 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
* Copyright (C) 2014 Endless Mobile
*/
#include <linux/export.h>
#include <linux/bitfield.h>
#include <drm/drm_fourcc.h>
#include "meson_drv.h"
#include "meson_viu.h"
#include "meson_registers.h"
/**
* DOC: Video Input Unit
*
* VIU Handles the Pixel scanout and the basic Colorspace conversions
* We handle the following features :
*
* - OSD1 RGB565/RGB888/xRGB8888 scanout
* - RGB conversion to x/cb/cr
* - Progressive or Interlace buffer scanout
* - OSD1 Commit on Vsync
* - HDR OSD matrix for GXL/GXM
*
* What is missing :
*
* - BGR888/xBGR8888/BGRx8888/BGRx8888 modes
* - YUV4:2:2 Y0CbY1Cr scanout
* - Conversion to YUV 4:4:4 from 4:2:2 input
* - Colorkey Alpha matching
* - Big endian scanout
* - X/Y reverse scanout
* - Global alpha setup
* - OSD2 support, would need interlace switching on vsync
* - OSD1 full scaling to support TV overscan
*/
/* OSD csc defines */
enum viu_matrix_sel_e {
VIU_MATRIX_OSD_EOTF = 0,
VIU_MATRIX_OSD,
};
enum viu_lut_sel_e {
VIU_LUT_OSD_EOTF = 0,
VIU_LUT_OSD_OETF,
};
#define COEFF_NORM(a) ((int)((((a) * 2048.0) + 1) / 2))
#define MATRIX_5X3_COEF_SIZE 24
#define EOTF_COEFF_NORM(a) ((int)((((a) * 4096.0) + 1) / 2))
#define EOTF_COEFF_SIZE 10
#define EOTF_COEFF_RIGHTSHIFT 1
static int RGB709_to_YUV709l_coeff[MATRIX_5X3_COEF_SIZE] = {
0, 0, 0, /* pre offset */
COEFF_NORM(0.181873), COEFF_NORM(0.611831), COEFF_NORM(0.061765),
COEFF_NORM(-0.100251), COEFF_NORM(-0.337249), COEFF_NORM(0.437500),
COEFF_NORM(0.437500), COEFF_NORM(-0.397384), COEFF_NORM(-0.040116),
0, 0, 0, /* 10'/11'/12' */
0, 0, 0, /* 20'/21'/22' */
64, 512, 512, /* offset */
0, 0, 0 /* mode, right_shift, clip_en */
};
/* eotf matrix: bypass */
static int eotf_bypass_coeff[EOTF_COEFF_SIZE] = {
EOTF_COEFF_NORM(1.0), EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(0.0),
EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(1.0), EOTF_COEFF_NORM(0.0),
EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(1.0),
EOTF_COEFF_RIGHTSHIFT /* right shift */
};
static void meson_viu_set_g12a_osd1_matrix(struct meson_drm *priv,
int *m, bool csc_on)
{
/* VPP WRAP OSD1 matrix */
writel(((m[0] & 0xfff) << 16) | (m[1] & 0xfff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_PRE_OFFSET0_1));
writel(m[2] & 0xfff,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_PRE_OFFSET2));
writel(((m[3] & 0x1fff) << 16) | (m[4] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF00_01));
writel(((m[5] & 0x1fff) << 16) | (m[6] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF02_10));
writel(((m[7] & 0x1fff) << 16) | (m[8] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF11_12));
writel(((m[9] & 0x1fff) << 16) | (m[10] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF20_21));
writel((m[11] & 0x1fff) << 16,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF22));
writel(((m[18] & 0xfff) << 16) | (m[19] & 0xfff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_OFFSET0_1));
writel(m[20] & 0xfff,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_OFFSET2));
writel_bits_relaxed(BIT(0), csc_on ? BIT(0) : 0,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_EN_CTRL));
}
static void meson_viu_set_osd_matrix(struct meson_drm *priv,
enum viu_matrix_sel_e m_select,
int *m, bool csc_on)
{
if (m_select == VIU_MATRIX_OSD) {
/* osd matrix, VIU_MATRIX_0 */
writel(((m[0] & 0xfff) << 16) | (m[1] & 0xfff),
priv->io_base + _REG(VIU_OSD1_MATRIX_PRE_OFFSET0_1));
writel(m[2] & 0xfff,
priv->io_base + _REG(VIU_OSD1_MATRIX_PRE_OFFSET2));
writel(((m[3] & 0x1fff) << 16) | (m[4] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF00_01));
writel(((m[5] & 0x1fff) << 16) | (m[6] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF02_10));
writel(((m[7] & 0x1fff) << 16) | (m[8] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF11_12));
writel(((m[9] & 0x1fff) << 16) | (m[10] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF20_21));
if (m[21]) {
writel(((m[11] & 0x1fff) << 16) | (m[12] & 0x1fff),
priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF22_30));
writel(((m[13] & 0x1fff) << 16) | (m[14] & 0x1fff),
priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF31_32));
writel(((m[15] & 0x1fff) << 16) | (m[16] & 0x1fff),
priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF40_41));
writel(m[17] & 0x1fff, priv->io_base +
_REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
} else
writel((m[11] & 0x1fff) << 16, priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF22_30));
writel(((m[18] & 0xfff) << 16) | (m[19] & 0xfff),
priv->io_base + _REG(VIU_OSD1_MATRIX_OFFSET0_1));
writel(m[20] & 0xfff,
priv->io_base + _REG(VIU_OSD1_MATRIX_OFFSET2));
writel_bits_relaxed(3 << 30, m[21] << 30,
priv->io_base + _REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
writel_bits_relaxed(7 << 16, m[22] << 16,
priv->io_base + _REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
/* 23 reserved for clipping control */
writel_bits_relaxed(BIT(0), csc_on ? BIT(0) : 0,
priv->io_base + _REG(VIU_OSD1_MATRIX_CTRL));
writel_bits_relaxed(BIT(1), 0,
priv->io_base + _REG(VIU_OSD1_MATRIX_CTRL));
} else if (m_select == VIU_MATRIX_OSD_EOTF) {
int i;
/* osd eotf matrix, VIU_MATRIX_OSD_EOTF */
for (i = 0; i < 5; i++)
writel(((m[i * 2] & 0x1fff) << 16) |
(m[i * 2 + 1] & 0x1fff), priv->io_base +
_REG(VIU_OSD1_EOTF_CTL + i + 1));
writel_bits_relaxed(BIT(30), csc_on ? BIT(30) : 0,
priv->io_base + _REG(VIU_OSD1_EOTF_CTL));
writel_bits_relaxed(BIT(31), csc_on ? BIT(31) : 0,
priv->io_base + _REG(VIU_OSD1_EOTF_CTL));
}
}
#define OSD_EOTF_LUT_SIZE 33
#define OSD_OETF_LUT_SIZE 41
static void
meson_viu_set_osd_lut(struct meson_drm *priv, enum viu_lut_sel_e lut_sel,
unsigned int *r_map, unsigned int *g_map,
unsigned int *b_map, bool csc_on)
{
unsigned int addr_port;
unsigned int data_port;
unsigned int ctrl_port;
int i;
if (lut_sel == VIU_LUT_OSD_EOTF) {
addr_port = VIU_OSD1_EOTF_LUT_ADDR_PORT;
data_port = VIU_OSD1_EOTF_LUT_DATA_PORT;
ctrl_port = VIU_OSD1_EOTF_CTL;
} else if (lut_sel == VIU_LUT_OSD_OETF) {
addr_port = VIU_OSD1_OETF_LUT_ADDR_PORT;
data_port = VIU_OSD1_OETF_LUT_DATA_PORT;
ctrl_port = VIU_OSD1_OETF_CTL;
} else
return;
if (lut_sel == VIU_LUT_OSD_OETF) {
writel(0, priv->io_base + _REG(addr_port));
for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
writel(r_map[i * 2] | (r_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(r_map[OSD_OETF_LUT_SIZE - 1] | (g_map[0] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
writel(g_map[i * 2 + 1] | (g_map[i * 2 + 2] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
writel(b_map[i * 2] | (b_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(b_map[OSD_OETF_LUT_SIZE - 1],
priv->io_base + _REG(data_port));
if (csc_on)
writel_bits_relaxed(0x7 << 29, 7 << 29,
priv->io_base + _REG(ctrl_port));
else
writel_bits_relaxed(0x7 << 29, 0,
priv->io_base + _REG(ctrl_port));
} else if (lut_sel == VIU_LUT_OSD_EOTF) {
writel(0, priv->io_base + _REG(addr_port));
for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
writel(r_map[i * 2] | (r_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(r_map[OSD_EOTF_LUT_SIZE - 1] | (g_map[0] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
writel(g_map[i * 2 + 1] | (g_map[i * 2 + 2] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
writel(b_map[i * 2] | (b_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(b_map[OSD_EOTF_LUT_SIZE - 1],
priv->io_base + _REG(data_port));
if (csc_on)
writel_bits_relaxed(7 << 27, 7 << 27,
priv->io_base + _REG(ctrl_port));
else
writel_bits_relaxed(7 << 27, 0,
priv->io_base + _REG(ctrl_port));
writel_bits_relaxed(BIT(31), BIT(31),
priv->io_base + _REG(ctrl_port));
}
}
/* eotf lut: linear */
static unsigned int eotf_33_linear_mapping[OSD_EOTF_LUT_SIZE] = {
0x0000, 0x0200, 0x0400, 0x0600,
0x0800, 0x0a00, 0x0c00, 0x0e00,
0x1000, 0x1200, 0x1400, 0x1600,
0x1800, 0x1a00, 0x1c00, 0x1e00,
0x2000, 0x2200, 0x2400, 0x2600,
0x2800, 0x2a00, 0x2c00, 0x2e00,
0x3000, 0x3200, 0x3400, 0x3600,
0x3800, 0x3a00, 0x3c00, 0x3e00,
0x4000
};
/* osd oetf lut: linear */
static unsigned int oetf_41_linear_mapping[OSD_OETF_LUT_SIZE] = {
0, 0, 0, 0,
0, 32, 64, 96,
128, 160, 196, 224,
256, 288, 320, 352,
384, 416, 448, 480,
512, 544, 576, 608,
640, 672, 704, 736,
768, 800, 832, 864,
896, 928, 960, 992,
1023, 1023, 1023, 1023,
1023
};
static void meson_viu_load_matrix(struct meson_drm *priv)
{
/* eotf lut bypass */
meson_viu_set_osd_lut(priv, VIU_LUT_OSD_EOTF,
eotf_33_linear_mapping, /* R */
eotf_33_linear_mapping, /* G */
eotf_33_linear_mapping, /* B */
false);
/* eotf matrix bypass */
meson_viu_set_osd_matrix(priv, VIU_MATRIX_OSD_EOTF,
eotf_bypass_coeff,
false);
/* oetf lut bypass */
meson_viu_set_osd_lut(priv, VIU_LUT_OSD_OETF,
oetf_41_linear_mapping, /* R */
oetf_41_linear_mapping, /* G */
oetf_41_linear_mapping, /* B */
false);
/* osd matrix RGB709 to YUV709 limit */
meson_viu_set_osd_matrix(priv, VIU_MATRIX_OSD,
RGB709_to_YUV709l_coeff,
true);
}
/* VIU OSD1 Reset as workaround for GXL+ Alpha OSD Bug */
void meson_viu_osd1_reset(struct meson_drm *priv)
{
uint32_t osd1_fifo_ctrl_stat, osd1_ctrl_stat2;
/* Save these 2 registers state */
osd1_fifo_ctrl_stat = readl_relaxed(
priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
osd1_ctrl_stat2 = readl_relaxed(
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
/* Reset OSD1 */
writel_bits_relaxed(VIU_SW_RESET_OSD1, VIU_SW_RESET_OSD1,
priv->io_base + _REG(VIU_SW_RESET));
writel_bits_relaxed(VIU_SW_RESET_OSD1, 0,
priv->io_base + _REG(VIU_SW_RESET));
/* Rewrite these registers state lost in the reset */
writel_relaxed(osd1_fifo_ctrl_stat,
priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
writel_relaxed(osd1_ctrl_stat2,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
/* Reload the conversion matrix */
meson_viu_load_matrix(priv);
}
#define OSD1_MALI_ORDER_ABGR \
(FIELD_PREP(VIU_OSD1_MALI_AFBCD_A_REORDER, \
VIU_OSD1_MALI_REORDER_A) | \
FIELD_PREP(VIU_OSD1_MALI_AFBCD_B_REORDER, \
VIU_OSD1_MALI_REORDER_B) | \
FIELD_PREP(VIU_OSD1_MALI_AFBCD_G_REORDER, \
VIU_OSD1_MALI_REORDER_G) | \
FIELD_PREP(VIU_OSD1_MALI_AFBCD_R_REORDER, \
VIU_OSD1_MALI_REORDER_R))
#define OSD1_MALI_ORDER_ARGB \
(FIELD_PREP(VIU_OSD1_MALI_AFBCD_A_REORDER, \
VIU_OSD1_MALI_REORDER_A) | \
FIELD_PREP(VIU_OSD1_MALI_AFBCD_B_REORDER, \
VIU_OSD1_MALI_REORDER_R) | \
FIELD_PREP(VIU_OSD1_MALI_AFBCD_G_REORDER, \
VIU_OSD1_MALI_REORDER_G) | \
FIELD_PREP(VIU_OSD1_MALI_AFBCD_R_REORDER, \
VIU_OSD1_MALI_REORDER_B))
void meson_viu_g12a_enable_osd1_afbc(struct meson_drm *priv)
{
u32 afbc_order = OSD1_MALI_ORDER_ARGB;
/* Enable Mali AFBC Unpack */
writel_bits_relaxed(VIU_OSD1_MALI_UNPACK_EN,
VIU_OSD1_MALI_UNPACK_EN,
priv->io_base + _REG(VIU_OSD1_MALI_UNPACK_CTRL));
switch (priv->afbcd.format) {
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_ABGR8888:
afbc_order = OSD1_MALI_ORDER_ABGR;
break;
}
/* Setup RGBA Reordering */
writel_bits_relaxed(VIU_OSD1_MALI_AFBCD_A_REORDER |
VIU_OSD1_MALI_AFBCD_B_REORDER |
VIU_OSD1_MALI_AFBCD_G_REORDER |
VIU_OSD1_MALI_AFBCD_R_REORDER,
afbc_order,
priv->io_base + _REG(VIU_OSD1_MALI_UNPACK_CTRL));
/* Select AFBCD path for OSD1 */
writel_bits_relaxed(OSD_PATH_OSD_AXI_SEL_OSD1_AFBCD,
OSD_PATH_OSD_AXI_SEL_OSD1_AFBCD,
priv->io_base + _REG(OSD_PATH_MISC_CTRL));
}
void meson_viu_g12a_disable_osd1_afbc(struct meson_drm *priv)
{
/* Disable AFBCD path for OSD1 */
writel_bits_relaxed(OSD_PATH_OSD_AXI_SEL_OSD1_AFBCD, 0,
priv->io_base + _REG(OSD_PATH_MISC_CTRL));
/* Disable AFBCD unpack */
writel_bits_relaxed(VIU_OSD1_MALI_UNPACK_EN, 0,
priv->io_base + _REG(VIU_OSD1_MALI_UNPACK_CTRL));
}
void meson_viu_gxm_enable_osd1_afbc(struct meson_drm *priv)
{
writel_bits_relaxed(MALI_AFBC_MISC, FIELD_PREP(MALI_AFBC_MISC, 0x90),
priv->io_base + _REG(VIU_MISC_CTRL1));
}
void meson_viu_gxm_disable_osd1_afbc(struct meson_drm *priv)
{
writel_bits_relaxed(MALI_AFBC_MISC, FIELD_PREP(MALI_AFBC_MISC, 0x00),
priv->io_base + _REG(VIU_MISC_CTRL1));
}
static inline uint32_t meson_viu_osd_burst_length_reg(uint32_t length)
{
uint32_t val = (((length & 0x80) % 24) / 12);
return (((val & 0x3) << 10) | (((val & 0x4) >> 2) << 31));
}
void meson_viu_init(struct meson_drm *priv)
{
uint32_t reg;
/* Disable OSDs */
writel_bits_relaxed(VIU_OSD1_OSD_BLK_ENABLE | VIU_OSD1_OSD_ENABLE, 0,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT));
writel_bits_relaxed(VIU_OSD1_OSD_BLK_ENABLE | VIU_OSD1_OSD_ENABLE, 0,
priv->io_base + _REG(VIU_OSD2_CTRL_STAT));
/* On GXL/GXM, Use the 10bit HDR conversion matrix */
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
meson_viu_load_matrix(priv);
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
meson_viu_set_g12a_osd1_matrix(priv, RGB709_to_YUV709l_coeff,
true);
/* Initialize OSD1 fifo control register */
reg = VIU_OSD_DDR_PRIORITY_URGENT |
VIU_OSD_HOLD_FIFO_LINES(31) |
VIU_OSD_FIFO_DEPTH_VAL(32) | /* fifo_depth_val: 32*8=256 */
VIU_OSD_WORDS_PER_BURST(4) | /* 4 words in 1 burst */
VIU_OSD_FIFO_LIMITS(2); /* fifo_lim: 2*16=32 */
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
reg |= meson_viu_osd_burst_length_reg(32);
else
reg |= meson_viu_osd_burst_length_reg(64);
writel_relaxed(reg, priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
writel_relaxed(reg, priv->io_base + _REG(VIU_OSD2_FIFO_CTRL_STAT));
/* Set OSD alpha replace value */
writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT,
0xff << OSD_REPLACE_SHIFT,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT,
0xff << OSD_REPLACE_SHIFT,
priv->io_base + _REG(VIU_OSD2_CTRL_STAT2));
/* Disable VD1 AFBC */
/* di_mif0_en=0 mif0_to_vpp_en=0 di_mad_en=0 and afbc vd1 set=0*/
writel_bits_relaxed(VIU_CTRL0_VD1_AFBC_MASK, 0,
priv->io_base + _REG(VIU_MISC_CTRL0));
writel_relaxed(0, priv->io_base + _REG(AFBC_ENABLE));
writel_relaxed(0x00FF00C0,
priv->io_base + _REG(VD1_IF0_LUMA_FIFO_SIZE));
writel_relaxed(0x00FF00C0,
priv->io_base + _REG(VD2_IF0_LUMA_FIFO_SIZE));
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
writel_relaxed(VIU_OSD_BLEND_REORDER(0, 1) |
VIU_OSD_BLEND_REORDER(1, 0) |
VIU_OSD_BLEND_REORDER(2, 0) |
VIU_OSD_BLEND_REORDER(3, 0) |
VIU_OSD_BLEND_DIN_EN(1) |
VIU_OSD_BLEND1_DIN3_BYPASS_TO_DOUT1 |
VIU_OSD_BLEND1_DOUT_BYPASS_TO_BLEND2 |
VIU_OSD_BLEND_DIN0_BYPASS_TO_DOUT0 |
VIU_OSD_BLEND_BLEN2_PREMULT_EN(1) |
VIU_OSD_BLEND_HOLD_LINES(4),
priv->io_base + _REG(VIU_OSD_BLEND_CTRL));
writel_relaxed(OSD_BLEND_PATH_SEL_ENABLE,
priv->io_base + _REG(OSD1_BLEND_SRC_CTRL));
writel_relaxed(OSD_BLEND_PATH_SEL_ENABLE,
priv->io_base + _REG(OSD2_BLEND_SRC_CTRL));
writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL));
writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL));
writel_relaxed(0,
priv->io_base + _REG(VIU_OSD_BLEND_DUMMY_DATA0));
writel_relaxed(0,
priv->io_base + _REG(VIU_OSD_BLEND_DUMMY_ALPHA));
writel_bits_relaxed(DOLBY_BYPASS_EN(0xc), DOLBY_BYPASS_EN(0xc),
priv->io_base + _REG(DOLBY_PATH_CTRL));
meson_viu_g12a_disable_osd1_afbc(priv);
}
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
meson_viu_gxm_disable_osd1_afbc(priv);
priv->viu.osd1_enabled = false;
priv->viu.osd1_commit = false;
priv->viu.osd1_interlace = false;
}
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