[PATCH 2/2] mmc: sdhci-of-aspeed: Add ast2700 support

[Philipp Zabel]

On Fr, 2026-03-13 at 13:27 +0800, Ryan Chen wrote:
> Add support for the AST2700 SOC in the sd controller driver. AST2700 sd
> controller requires an reset line, so hook up the optional reset control
> and deassert it during probe.
> 
> Signed-off-by: Ryan Chen <ryan_chen at aspeedtech.com>
> ---
>  drivers/mmc/host/sdhci-of-aspeed.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c
> index ca97b01996b1..91c36245e506 100644
> --- a/drivers/mmc/host/sdhci-of-aspeed.c
> +++ b/drivers/mmc/host/sdhci-of-aspeed.c
> @@ -520,6 +520,7 @@ static int aspeed_sdc_probe(struct platform_device *pdev)
>  
>  {
>  	struct device_node *parent, *child;
> +	struct reset_control *reset;
>  	struct aspeed_sdc *sdc;
>  	int ret;
>  
> @@ -529,6 +530,15 @@ static int aspeed_sdc_probe(struct platform_device *pdev)
>  
>  	spin_lock_init(&sdc->lock);
>  
> +	reset = reset_control_get_optional_exclusive(&pdev->dev, NULL);

This is missing a reset_control_put() in aspeed_sdc_remove(). Or use
devm_reset_control_get_optional_exclusive().

Is it ok to assert this reset control in _remove()? If so, you could
use devm_reset_control_get_optional_exclusive_deasserted().


regards
Philipp