From: Tzung-Bi Shih <tzungbi@google.com>
To: "allen-kh.cheng" <allen-kh.cheng@mediatek.com>
Cc: Jassi Brar <jassisinghbrar@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Linux-ALSA <alsa-devel@alsa-project.org>,
cujomalainey@google.com,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
Kai Vehmanen <kai.vehmanen@linux.intel.com>,
Daniel Baluta <daniel.baluta@nxp.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
Project_Global_Chrome_Upstream_Group@mediatek.com,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
sound-open-firmware@alsa-project.org
Subject: Re: [PATCH v4 3/3] mailbox: mediatek: add support for adsp mailbox controller
Date: Fri, 26 Nov 2021 12:43:23 +0800 [thread overview]
Message-ID: <YaBl66b7VFJK84F4@google.com> (raw)
In-Reply-To: <20211125122925.1303-4-allen-kh.cheng@mediatek.com>
On Thu, Nov 25, 2021 at 08:29:25PM +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;
To be concise, readl(reg + MTK_ADSP_MBOX_IN_CMD) == 0.
> +static int mtk_adsp_mbox_probe(struct platform_device *pdev)
> +{
[...]
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + if (!res) {
> + dev_err(dev, "no adsp mbox register resource\n");
> + return -ENXIO;
> + }
> +
> + priv->va_mboxreg = devm_platform_ioremap_resource(pdev, 0);
> + if (IS_ERR(priv->va_mboxreg))
> + return PTR_ERR(priv->va_mboxreg);
If using devm_platform_ioremap_resource(), it doesn't need to call platform_get_resource(). res is unused.
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prev parent reply other threads:[~2021-11-26 4:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-25 12:29 [PATCH v4 0/3] This patches provide ADSP IPC support for MT8195 allen-kh.cheng
2021-11-25 12:29 ` [PATCH v4 1/3] dt-bindings: mediatek: add adsp-mbox document allen-kh.cheng
2021-11-25 12:29 ` [PATCH v4 2/3] firmware: mediatek: add adsp ipc protocol interface allen-kh.cheng
2021-11-26 4:43 ` Tzung-Bi Shih
2021-11-25 12:29 ` [PATCH v4 3/3] mailbox: mediatek: add support for adsp mailbox controller allen-kh.cheng
2021-11-26 4:43 ` Tzung-Bi Shih [this message]
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