Re: [PATCH v2 03/16] drm: renesas: rzg2l_mipi_dsi: Add activation_dly to hw_info

[Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>]

On Wed, Jul 29, 2026 at 01:54:55PM +0100, Biju wrote:
> From: Biju Das <biju.das.jz@bp.renesas.com>
> 
> Move the post-reset activation delay into the hw_info structure as
> activation_dly, allowing SoC-specific values to be defined per
> compatible. This prepares the driver for supporting SoCs that require a
> different delay after reset deassertion.
> 

Reviewed-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>

Kind Regards,
Tommaso

> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> ---
> v1->v2:
>  * No change.
> ---
>  drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
> index 2128fd16ebc9..1538eeece2b5 100644
> --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
> +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
> @@ -59,6 +59,7 @@ struct rzg2l_mipi_dsi_hw_info {
>  	u32 dphyctrl0_init_val;
>  	unsigned long min_dclk;
>  	unsigned long max_dclk;
> +	u16 activation_dly;
>  	u8 features;
>  };
>  
> @@ -806,7 +807,7 @@ static int rzg2l_mipi_dsi_startup(struct rzg2l_mipi_dsi *dsi,
>  		if (ret < 0)
>  			goto err_phy;
>  
> -		fsleep(1000);
> +		fsleep(dsi->info->activation_dly);
>  	}
>  
>  	return 0;
> @@ -1534,6 +1535,7 @@ static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi_dsi_info = {
>  			      DSIDPHYCTRL0_RE_VDD_DETVCCQLV18 | DSIDPHYCTRL0_EN_BGR,
>  	.min_dclk = 5803,
>  	.max_dclk = 148500,
> +	.activation_dly = 1000,
>  };
>  
>  static const struct of_device_id rzg2l_mipi_dsi_of_table[] = {
> -- 
> 2.43.0
>