diff options
Diffstat (limited to 'drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c')
-rw-r--r-- | drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c new file mode 100644 index 000000000000..f69c3b5d4782 --- /dev/null +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019-2023 NXP + */ + +#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) ((dt) << 8) +#define GASKET_CTRL_DATA_TYPE_MASK (0x3f << 8) +#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) (((x) & 0x3f) << 3) +#define DISP_MIX_CAMERA_MUX_GASKET_ENABLE BIT(16) + +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; + 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, +}; |