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Date:   Tue, 6 Jun 2023 15:20:59 +0300
From:   Tony Lindgren <tony@atomide.com>
To:     Chen-Yu Tsai <wenst@chromium.org>
Cc:     John Ogness <john.ogness@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        Andy Shevchenko <andriy.shevchenko@intel.com>,
        Dhruva Gole <d-gole@ti.com>,
        Ilpo =?utf-8?B?SsOkcnZpbmVu?= <ilpo.jarvinen@linux.intel.com>,
        Johan Hovold <johan@kernel.org>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        linux-omap@vger.kernel.org,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
        =?utf-8?B?TsOtY29sYXMgRi4gUi4gQS4=?= Prado 
        <nfraprado@collabora.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v12 1/1] serial: core: Start managing serial controllers
 to enable runtime PM
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* Chen-Yu Tsai <wenst@chromium.org> [230606 09:17]:
> I ended up following 8250_dw's design, which seemed less convoluted.
> The original code was waaay too convoluted.

OK that looks good to me thanks. Good to hear you got it sorted out.

The 8250_dw style runtime PM is a good solution for simple cases. Where
it won't work are SoCs where runtime PM calls need to propagate up the
bus hierarchy. For example, 8250_omap needs runtime PM calls for the
interconnect and power domain to get register access working.

> BTW, the Bluetooth breakage seems like a different problem.

OK seems like we're good to go then :)

Regards,

Tony