From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: "Rafał Miłecki" <zajec5@gmail.com>,
"Srinivas Kandagatla" <srinivas.kandagatla@linaro.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>
Cc: "Matthias Brugger" <matthias.bgg@gmail.com>,
"Kunihiko Hayashi" <hayashi.kunihiko@socionext.com>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, "Rafał Miłecki" <rafal@milecki.pl>
Subject: Re: [PATCH 2/4] nvmem: add generic driver for devices with MMIO access
Date: Thu, 2 Feb 2023 10:24:44 +0100 [thread overview]
Message-ID: <6fd35f0b-60ed-36ed-45bf-62346c0e220e@collabora.com> (raw)
In-Reply-To: <20230201064717.18410-3-zajec5@gmail.com>
Il 01/02/23 07:47, Rafał Miłecki ha scritto:
> From: Rafał Miłecki <rafal@milecki.pl>
>
> With nvmem layouts in place we should now work on plain content access
> NVMEM drivers (e.g. MMIO one). Actual NVMEM content handling should go
> to layout drivers.
>
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
I agree but if you want to really bring on this change, you should add
some kind of write support... and clocks... and regulators with different
voltage levels (write/fuse-blow voltage, read voltage if any)...
Describing this entire thing in device-tree should be possible, but then
some SoCs may need a specific register sequence in order to enter writing
mode, which is something that you can't just put in devicetree, so this
driver should be a framework on its own - hence not as simple as proposed.
Regards,
Angelo
next prev parent reply other threads:[~2023-02-02 9:25 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 6:47 [PATCH 0/4] nvmem: add and use generic MMIO NVMEM Rafał Miłecki
2023-02-01 6:47 ` [PATCH 1/4] dt-bindings: nvmem: mmio: new binding for MMIO accessible NVMEM devices Rafał Miłecki
2023-02-03 21:06 ` Rob Herring
2023-02-01 6:47 ` [PATCH 2/4] nvmem: add generic driver for devices with MMIO access Rafał Miłecki
2023-02-01 9:41 ` Kunihiko Hayashi
2023-02-01 11:52 ` Srinivas Kandagatla
2023-02-02 9:24 ` AngeloGioacchino Del Regno [this message]
2023-02-01 6:47 ` [PATCH 3/4] nvmem: mtk-efuse: replace driver with a generic MMIO one Rafał Miłecki
2023-02-01 8:48 ` Michael Walle
2023-02-01 9:30 ` Rafał Miłecki
2023-02-01 10:46 ` Michael Walle
2023-02-01 11:01 ` Rafał Miłecki
2023-02-01 11:11 ` Michael Walle
2023-02-01 18:54 ` Rob Herring
2023-02-01 20:15 ` Michael Walle
2023-02-02 23:44 ` Rob Herring
2023-02-01 6:47 ` [PATCH 4/4] nvmem: uniphier-efuse: " Rafał Miłecki
2023-02-01 7:50 ` [PATCH 0/4] nvmem: add and use generic MMIO NVMEM Rafał Miłecki
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