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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2019-2023 NXP
*/
#include <linux/bitfield.h>
#include <linux/bits.h>
#include <linux/regmap.h>
#include <media/mipi-csi2.h>
#include "imx8-isi-core.h"
/* -----------------------------------------------------------------------------
* i.MX8MN and i.MX8MP gasket
*/
#define GASKET_BASE(n) (0x0060 + (n) * 0x30)
#define GASKET_CTRL 0x0000
#define GASKET_CTRL_DATA_TYPE(dt) FIELD_PREP(GENMASK(13, 8), dt)
#define GASKET_CTRL_DUAL_COMP_ENABLE BIT(1)
#define GASKET_CTRL_ENABLE BIT(0)
#define GASKET_HSIZE 0x0004
#define GASKET_VSIZE 0x0008
static void mxc_imx8_gasket_enable(struct mxc_isi_dev *isi,
const struct v4l2_mbus_frame_desc *fd,
const struct v4l2_mbus_framefmt *fmt,
const unsigned int port)
{
u32 val;
regmap_write(isi->gasket, GASKET_BASE(port) + GASKET_HSIZE, fmt->width);
regmap_write(isi->gasket, GASKET_BASE(port) + GASKET_VSIZE, fmt->height);
val = GASKET_CTRL_DATA_TYPE(fd->entry[0].bus.csi2.dt);
if (fd->entry[0].bus.csi2.dt == MIPI_CSI2_DT_YUV422_8B)
val |= GASKET_CTRL_DUAL_COMP_ENABLE;
val |= GASKET_CTRL_ENABLE;
regmap_write(isi->gasket, GASKET_BASE(port) + GASKET_CTRL, val);
}
static void mxc_imx8_gasket_disable(struct mxc_isi_dev *isi,
const unsigned int port)
{
regmap_write(isi->gasket, GASKET_BASE(port) + GASKET_CTRL, 0);
}
const struct mxc_gasket_ops mxc_imx8_gasket_ops = {
.enable = mxc_imx8_gasket_enable,
.disable = mxc_imx8_gasket_disable,
};
/* -----------------------------------------------------------------------------
* i.MX93 gasket
*/
#define DISP_MIX_CAMERA_MUX 0x30
#define DISP_MIX_CAMERA_MUX_DATA_TYPE(x) FIELD_PREP(GENMASK(8, 3), x)
#define DISP_MIX_CAMERA_MUX_GASKET_ENABLE BIT(16)
#define DISP_MIX_CAMERA_MUX_GASKET_SOURCE_TYPE BIT(17)
static void mxc_imx93_gasket_enable(struct mxc_isi_dev *isi,
const struct v4l2_mbus_frame_desc *fd,
const struct v4l2_mbus_framefmt *fmt,
const unsigned int port)
{
u32 val;
val = DISP_MIX_CAMERA_MUX_DATA_TYPE(fd->entry[0].bus.csi2.dt);
val |= DISP_MIX_CAMERA_MUX_GASKET_ENABLE;
/*
* CAMERA MUX
* - [17]: Selects source input to gasket
* 0: Data from MIPI CSI
* 1: Data from parallel camera
*/
if (fd->type == V4L2_MBUS_FRAME_DESC_TYPE_PARALLEL)
val |= DISP_MIX_CAMERA_MUX_GASKET_SOURCE_TYPE;
regmap_write(isi->gasket, DISP_MIX_CAMERA_MUX, val);
}
static void mxc_imx93_gasket_disable(struct mxc_isi_dev *isi,
unsigned int port)
{
regmap_write(isi->gasket, DISP_MIX_CAMERA_MUX, 0);
}
const struct mxc_gasket_ops mxc_imx93_gasket_ops = {
.enable = mxc_imx93_gasket_enable,
.disable = mxc_imx93_gasket_disable,
};
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