Hi Eugene
On Mon, Apr 05, 2021 at 06:50:40PM +0300, Eugen Hristev wrote:
> The dma configuration (DCFG) is specific to the product.
> Move this configuration in the product specific driver, and add the
> field inside the driver struct.
Do you plan to match on different compatible values ?
As in that case you could retrieve platform-specific data with
of_device_get_match_data() maybe ? Just pointing it out if it's anyway
useful to you.
Thanks
j
>
> Signed-off-by: Eugen Hristev
> ---
> drivers/media/platform/atmel/atmel-isc-base.c| 3 +--
> drivers/media/platform/atmel/atmel-isc.h | 2 ++
> drivers/media/platform/atmel/atmel-sama5d2-isc.c | 3 +++
> 3 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/atmel/atmel-isc-base.c
> b/drivers/media/platform/atmel/atmel-isc-base.c
> index 350076dd029a..ff40ee2e2759 100644
> --- a/drivers/media/platform/atmel/atmel-isc-base.c
> +++ b/drivers/media/platform/atmel/atmel-isc-base.c
> @@ -716,8 +716,7 @@ static int isc_configure(struct isc_device *isc)
> rlp_mode = isc->config.rlp_cfg_mode;
> pipeline = isc->config.bits_pipeline;
>
> - dcfg = isc->config.dcfg_imode |
> -ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;
> + dcfg = isc->config.dcfg_imode | isc->dcfg;
>
> pfe_cfg0 |= subdev->pfe_cfg0 | ISC_PFE_CFG0_MODE_PROGRESSIVE;
> mask = ISC_PFE_CFG0_BPS_MASK | ISC_PFE_CFG0_HPOL_LOW |
> diff --git a/drivers/media/platform/atmel/atmel-isc.h
> b/drivers/media/platform/atmel/atmel-isc.h
> index 6becc6c3aaf0..d14ae096fbf6 100644
> --- a/drivers/media/platform/atmel/atmel-isc.h
> +++ b/drivers/media/platform/atmel/atmel-isc.h
> @@ -150,6 +150,7 @@ struct isc_ctrls {
> * @hclock: Hclock clock input (refer datasheet)
> * @ispck: iscpck clock (refer datasheet)
> * @isc_clks:ISC clocks
> + * @dcfg:DMA master configuration, architecture dependent
> *
> * @dev: Registered device driver
> * @v4l2_dev:v4l2 registered device
> @@ -197,6 +198,7 @@ struct isc_device {
> struct clk *hclock;
> struct clk *ispck;
> struct isc_clk isc_clks[2];
> + u32 dcfg;
>
> struct device *dev;
> struct v4l2_device v4l2_dev;
> diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> index f8d1c8ba99b3..6d9942dcd7c1 100644
> --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> @@ -198,6 +198,9 @@ static int atmel_isc_probe(struct platform_device *pdev)
> isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;
> isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;
>
> + /* sama5d2-isc - 8 bits per beat */
> + isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;
> +
> ret = isc_pipeline_init(isc);
> if (ret)
> return ret;
> --
> 2.25.1
>
