From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Jisheng Zhang <jszhang@kernel.org>
Cc: Mark Brown <broonie@kernel.org>,
linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] spi: dw-mmio: support suspend/resume
Date: Tue, 27 Jan 2026 17:01:04 +0100 [thread overview]
Message-ID: <aXjhQNaO6QnkdE3S@black.igk.intel.com> (raw)
In-Reply-To: <20260122155046.12848-1-jszhang@kernel.org>
On Thu, Jan 22, 2026 at 11:50:46PM +0800, Jisheng Zhang wrote:
> Add system wide suspend and resume support, the implementation is
> straightforward, just call spi_controller_suspend() then assert the
> reset and disable clks for suspend, enable clks and deassert reset
> then call spi_controller_resume() for resume.
...
> +static int dw_spi_mmio_resume(struct device *dev)
> +{
> + struct dw_spi_mmio *dwsmmio = dev_get_drvdata(dev);
> + clk_prepare_enable(dwsmmio->clk);
> + clk_prepare_enable(dwsmmio->pclk);
You forgot to check for an error code from the above.
> + reset_control_deassert(dwsmmio->rstc);
> +
> + return dw_spi_resume_controller(&dwsmmio->dws);
> +}
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-01-27 16:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 15:50 [PATCH] spi: dw-mmio: support suspend/resume Jisheng Zhang
2026-01-22 17:57 ` Mark Brown
2026-01-27 16:01 ` Andy Shevchenko
2026-01-27 16:07 ` Mark Brown
2026-01-27 20:51 ` Andy Shevchenko
2026-01-27 22:10 ` Mark Brown
2026-01-27 16:01 ` Andy Shevchenko [this message]
2026-01-27 22:36 ` Mark Brown
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