[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <fc30ce4736d43e367108c3651fec6f3b9a4d7852.camel@pengutronix.de>
Date: Tue, 09 Jan 2024 10:07:35 +0100
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Shengyang Chen <shengyang.chen@...rfivetech.com>,
devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org
Cc: andrzej.hajda@...el.com, neil.armstrong@...aro.org, rfoss@...nel.org,
Laurent.pinchart@...asonboard.com, jonas@...boo.se,
jernej.skrabec@...il.com, maarten.lankhorst@...ux.intel.com,
mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com,
daniel@...ll.ch, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org, tomi.valkeinen@...asonboard.com, r-ravikumar@...com,
aford173@...il.com, rdunlap@...radead.org, u.kleine-koenig@...gutronix.de,
bbrezillon@...nel.org, changhuang.liang@...rfivetech.com,
keith.zhao@...rfivetech.com, jack.zhu@...rfivetech.com,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] gpu: drm: bridge: cadence: Add a driver and
platform ops for StarFive JH7110 SoC
On Di, 2024-01-09 at 15:25 +0800, Shengyang Chen wrote:
> +static int cdns_dsi_get_reset(struct device *dev, struct cdns_dsi *dsi)
> +{
> + dsi->dpi_rst = devm_reset_control_get(dev, "dpi");
> + if (IS_ERR(dsi->dpi_rst))
> + return PTR_ERR(dsi->dpi_rst);
Please use devm_reset_control_get_exclusive() directly.
Also, consider using devm_reset_control_bulk_get_exclusive() instead,
to control "dpi"/"apb"/"txesc" resets together - if the hardware can
handle deasserting in reversed order.
> +
> + dsi->apb_rst = devm_reset_control_get(dev, "apb");
> + if (IS_ERR(dsi->apb_rst))
> + return PTR_ERR(dsi->apb_rst);
> +
> + dsi->txesc_rst = devm_reset_control_get(dev, "txesc");
> + if (IS_ERR(dsi->txesc_rst))
> + return PTR_ERR(dsi->txesc_rst);
> +
> + dsi->txbytehs_rst = devm_reset_control_get(dev, "txbytehs");
> + if (IS_ERR(dsi->txbytehs_rst))
> + return PTR_ERR(dsi->txbytehs_rst);
> +
> + return 0;
> +}
regards
Philipp
Powered by blists - more mailing lists