On Wed, Jun 28, 2023 at 02:42:51PM +0800, guoniu.zhou@xxxxxxxxxxx wrote:
> From: "Guoniu.zhou" <guoniu.zhou@xxxxxxx>
>
> i.MX93 use a different gasket which has different register definition
> compared with i.MX8. Hence implement the gasket callbacks in order to
> add ISI support for i.MX93.
>
> Signed-off-by: Guoniu.zhou <guoniu.zhou@xxxxxxx>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> .../platform/nxp/imx8-isi/imx8-isi-core.c | 15 ++++++++++
> .../platform/nxp/imx8-isi/imx8-isi-core.h | 2 ++
> .../platform/nxp/imx8-isi/imx8-isi-gasket.c | 28 +++++++++++++++++++
> 3 files changed, 45 insertions(+)
>
> diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
> index f2774325dd61..13a0225de634 100644
> --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
> +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
> @@ -304,6 +304,20 @@ static const struct mxc_isi_plat_data mxc_imx8mp_data = {
> .has_36bit_dma = true,
> };
>
> +static const struct mxc_isi_plat_data mxc_imx93_data = {
> + .model = MXC_ISI_IMX93,
> + .num_ports = 1,
> + .num_channels = 1,
> + .reg_offset = 0,
> + .ier_reg = &mxc_imx8_isi_ier_v2,
> + .set_thd = &mxc_imx8_isi_thd_v1,
> + .clks = mxc_imx8mn_clks,
> + .num_clks = ARRAY_SIZE(mxc_imx8mn_clks),
> + .buf_active_reverse = true,
> + .gasket_ops = &mxc_imx93_gasket_ops,
> + .has_36bit_dma = false,
> +};
> +
> /* -----------------------------------------------------------------------------
> * Power management
> */
> @@ -515,6 +529,7 @@ static int mxc_isi_remove(struct platform_device *pdev)
> static const struct of_device_id mxc_isi_of_match[] = {
> { .compatible = "fsl,imx8mn-isi", .data = &mxc_imx8mn_data },
> { .compatible = "fsl,imx8mp-isi", .data = &mxc_imx8mp_data },
> + { .compatible = "fsl,imx93-isi", .data = &mxc_imx93_data },
> { /* sentinel */ },
> };
> MODULE_DEVICE_TABLE(of, mxc_isi_of_match);
> diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h
> index 87182ebb99f0..ddd3d8ce4000 100644
> --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h
> +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h
> @@ -150,6 +150,7 @@ struct mxc_gasket_ops {
> enum model {
> MXC_ISI_IMX8MN,
> MXC_ISI_IMX8MP,
> + MXC_ISI_IMX93,
> };
>
> struct mxc_isi_plat_data {
> @@ -287,6 +288,7 @@ struct mxc_isi_dev {
> };
>
> extern const struct mxc_gasket_ops mxc_imx8_gasket_ops;
> +extern const struct mxc_gasket_ops mxc_imx93_gasket_ops;
>
> int mxc_isi_crossbar_init(struct mxc_isi_dev *isi);
> void mxc_isi_crossbar_cleanup(struct mxc_isi_crossbar *xbar);
> diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c
> index f3758af59db1..96f36a6d8a3c 100644
> --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c
> +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-gasket.c
> @@ -19,6 +19,11 @@
> #define GASKET_HSIZE 0x0004
> #define GASKET_VSIZE 0x0008
>
> +/* dispmix_GPR register (i.MX93 only) */
> +#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)
> +
> /* Configure and enable gasket for i.MX8MN and i.MX8P */
> static void mxc_imx8_gasket_enable(struct mxc_isi_dev *isi,
> const struct v4l2_mbus_frame_desc *fd,
> @@ -50,3 +55,26 @@ const struct mxc_gasket_ops mxc_imx8_gasket_ops = {
> .enable = mxc_imx8_gasket_enable,
> .disable = mxc_imx8_gasket_disable,
> };
Following the comment on 2/3, let's add
/* -----------------------------------------------------------------------------
* i.MX93 gasket
*/
, move the three DISP_MIX_CAMERA_MUX* macros here, and drop the comments
before the enable and disable functions.
> +
> +/* Configure and enable gasket for i.MX93 */
> +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);
> +}
Missing blank line.
> +const struct mxc_gasket_ops mxc_imx93_gasket_ops = {
> + .enable = mxc_imx93_gasket_enable,
> + .disable = mxc_imx93_gasket_disable,
> +};
--
Regards,
Laurent Pinchart
