[PATCH v5 3/3] mailbox: mediatek: add support for adsp mailbox controller

Tzung-Bi Shih tzungbi at google.com
Thu Nov 25 23:32:17 PST 2021


On Fri, Nov 26, 2021 at 03:14:32PM +0800, allen-kh.cheng wrote:
> diff --git a/drivers/mailbox/mtk-adsp-mailbox.c b/drivers/mailbox/mtk-adsp-mailbox.c
[...]
> +static bool mtk_adsp_mbox_last_tx_done(struct mbox_chan *chan)
> +{
> +	struct adsp_mbox_ch_info *ch_info = chan->con_priv;
> +	void __iomem *reg = ch_info->va_reg;
> +
> +	return readl(reg + MTK_ADSP_MBOX_IN_CMD) == 0 ? true : false;

The expression "readl(...) == 0" should be already a boolean.



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