From: William Bright <william.bright@imd-tec.com>
To: Manivannan Sadhasivam <mani@kernel.org>
Cc: Bartosz Golaszewski <brgl@kernel.org>,
linux-pci@vger.kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] power: sequencing: pcie-m2: Drive the Key E SDIO_RESET# signal
Date: Mon, 26 Oct 2026 13:56:43 +0000 [thread overview]
Message-ID: <at9cGzb2p4VB8EfW@will-Legion-Slim-5-16APH8> (raw)
In-Reply-To: <at9KREB4Fyf-Jl5S@debian>
On Mon, Oct 26, 2026 at 06:16:38PM +0530, Manivannan Sadhasivam wrote:
>
> Do we have SDIO pwrseq consumer driver in mainline?
>
>
No. MMC still uses its own mmc-pwrseq framework.
> You should not add GPIO control to the pwrseq_pcie_m2_vregs_{enable/disable}()
> callbacks. You should create a new 'sdio-enable' and populate
> pwrseq_unit_data->enable/disable callbacks for the SDIO_RESET# control.
An sdio-enable unit wouldn't ever be called until MMC gains a consumer.
Should I add the unit anyway, or drop this patch until an SDIO user
exists? Maybe I should switch to working on this first? But it looks to
be quite a big task.
> Please take a look at the 'pcie-enable' unit and W_DISABLE1/2# GPIO control.
>
> But before that, you should explain how the SDIO consumer driver is making use
> of pwrseq.
>
> - Mani
>
> --
> மணிவண்ணன் சதாசிவம்k
Regards
Will
next prev parent reply other threads:[~2026-10-26 13:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 11:38 William Bright
2026-10-26 12:46 ` Manivannan Sadhasivam
2026-10-26 13:56 ` William Bright [this message]
2026-10-27 11:59 ` Manivannan Sadhasivam
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