[PATCH v4 4/4] media: platform: synopsys: Add support for hdmi input driver

Markus Elfring Markus.Elfring at web.de
Sun Jul 21 08:06:24 PDT 2024


…
> +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> @@ -0,0 +1,2763 @@
…
> +static void hdmirx_writel(struct snps_hdmirx_dev *hdmirx_dev, int reg, u32 val)
> +{
…
> +	spin_lock_irqsave(&hdmirx_dev->rst_lock, lock_flags);
> +	writel(val, hdmirx_dev->regs + reg);
> +	spin_unlock_irqrestore(&hdmirx_dev->rst_lock, lock_flags);
> +}
…

Under which circumstances would you become interested to apply a statement
like “guard(spinlock_irqsave)(&hdmirx_dev->rst_lock);”?
https://elixir.bootlin.com/linux/v6.10/source/include/linux/spinlock.h#L574

Regards,
Markus



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