From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Chen-Yu Tsai <wenst@chromium.org>,
Stephen Boyd <sboyd@kernel.org>,
Brian Masney <bmasney@redhat.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Alessio Belle <alessio.belle@imgtec.com>,
Luigi Santivetti <luigi.santivetti@imgtec.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dan Carpenter <dan.carpenter@linaro.org>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
imagination@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Icenowy Zheng <zhengxingda@iscas.ac.cn>,
YoungJoon Lee <getfeus@gmail.com>
Subject: Re: [PATCH v3 2/5] clk: mediatek: Add mt8173-mfgtop driver
Date: Mon, 27 Jul 2026 13:26:39 +0200 [thread overview]
Message-ID: <3c17cdf1-7e75-4002-9ce2-08d4dc56198d@collabora.com> (raw)
In-Reply-To: <20260727091555.1023910-3-wenst@chromium.org>
On 7/27/26 11:15, Chen-Yu Tsai wrote:
> The MFG (GPU) block on the MT8173 has a small glue layer, named MFG_TOP
> in the datasheet, that contains clock gates, some power sequence signal
> delays, and other unknown registers that get toggled when the GPU is
> powered on.
>
> The clock gates are exposed as clocks provided by a clock controller,
> while the power sequencing bits are exposed as one singular power domain.
>
> Tested-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
> Changes since v2:
> - Made COMMON_CLK_MT8173_MFGTOP depend on PM
> - Needed since the driver implements PM domains using the generic PM
> domain library, which also depends on PM
> - Fixes build breakage (kernel test robot)
> - Fixed "RST_DELAY_CNT" name (Brian)
> - Dropped unused mfg_desc (Brian)
> - Added check of clk_prepare_enable()'s return value in
> clk_mt8173_mfgtop_power_on() (Brian)
> - Saved error value for return in IS_ERR(data->clk_26m) branch
> (Dan Carpenter / kernel test robot w/ smatch)
next prev parent reply other threads:[~2026-07-27 11:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-27 9:15 [PATCH v3 0/5] powervr: MT8173 GPU support Chen-Yu Tsai
2026-07-27 9:15 ` [PATCH v3 1/5] dt-bindings: clock: mediatek: Add mt8173 mfgtop Chen-Yu Tsai
2026-07-27 11:26 ` AngeloGioacchino Del Regno
2026-07-27 9:15 ` [PATCH v3 2/5] clk: mediatek: Add mt8173-mfgtop driver Chen-Yu Tsai
2026-07-27 11:26 ` AngeloGioacchino Del Regno [this message]
2026-07-27 16:16 ` Brian Masney
2026-07-27 9:15 ` [PATCH v3 3/5] dt-bindings: gpu: powervr-rogue: Add MediaTek MT8173 GPU Chen-Yu Tsai
2026-07-27 9:15 ` [PATCH v3 4/5] arm64: dts: mediatek: mt8173: Fix MFG_ASYNC power domain clock Chen-Yu Tsai
2026-07-27 9:15 ` [PATCH v3 5/5] arm64: dts: mediatek: mt8173: Add GPU device nodes Chen-Yu Tsai
2026-07-27 15:48 ` [PATCH v3 0/5] powervr: MT8173 GPU support YoungJoon Lee
2026-07-28 6:29 ` YoungJoon Lee
2026-07-28 6:37 ` Chen-Yu Tsai
2026-07-28 7:47 ` YoungJoon Lee
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