Re: [RFC PATCH 24/40] soundwire: cadence_master: use BIOS defaults for frame shape

Vinod Koul
2019-08-02T17:11:30Z

On 25-07-19, 18:40, Pierre-Louis Bossart wrote:
> Remove hard-coding and use BIOS values. If they are wrong use default

BIOS :) this is cadence, am sure this can be used outside BIOS :D

It would be better to say firmware (ACPI/DT)

> 48x2 frame shape.
>
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> ---
> drivers/soundwire/cadence_master.c | 19 +++++++++++++++++--
> 1 file changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
> index 442f78c00f09..d84344e29f71 100644
> --- a/drivers/soundwire/cadence_master.c
> +++ b/drivers/soundwire/cadence_master.c
> @@ -175,7 +175,6 @@
> /* Driver defaults */
>
> #define CDNS_DEFAULT_CLK_DIVIDER 0
> -#define CDNS_DEFAULT_FRAME_SHAPE 0x30
> #define CDNS_DEFAULT_SSP_INTERVAL 0x18
> #define CDNS_TX_TIMEOUT 2000
>
> @@ -954,6 +953,20 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
> }
> EXPORT_SYMBOL(sdw_cdns_pdi_init);
>
> +static u32 cdns_set_default_frame_shape(int n_rows, int n_cols)
> +{
> + u32 val;
> + int c;
> + int r;

This can be in single line!

> +
> + r = sdw_find_row_index(n_rows);
> + c = sdw_find_col_index(n_cols);
> +
> + val = (r << 3) | c;

Magic 3?

--
~Vinod