[PATCH v3 2/5] clk: mediatek: Add mt8173-mfgtop driver

[AngeloGioacchino Del Regno]

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 at iscas.ac.cn>
> Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at 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)