From: "Arnd Bergmann" <arnd@arndb.de>
To: "Bhavya Kapoor" <b-kapoor@ti.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: "Udit Kumar" <u-kumar1@ti.com>,
"Nícolas F. R. A. Prado" <nfraprado@collabora.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Biju Das" <biju.das.jz@bp.renesas.com>,
"Neil Armstrong" <neil.armstrong@linaro.org>,
"Shawn Guo" <shawnguo@kernel.org>,
"Konrad Dybcio" <konrad.dybcio@linaro.org>,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
"Krzysztof Kozlowski" <krzysztof.kozlowski@linaro.org>,
"Bjorn Andersson" <quic_bjorande@quicinc.com>,
"Will Deacon" <will@kernel.org>,
"Catalin Marinas" <catalin.marinas@arm.com>
Subject: Re: [PATCH] arm64: defconfig: Modify number of usable 8250 uart ports
Date: Fri, 17 May 2024 06:49:58 +0000 [thread overview]
Message-ID: <1d1c92f3-1692-40a1-aeb9-ef3e342e9bf6@app.fastmail.com> (raw)
In-Reply-To: <20240516095733.276807-1-b-kapoor@ti.com>
On Thu, May 16, 2024, at 09:57, Bhavya Kapoor wrote:
> Jacinto SoCs have a total of 12 serial uart ports. But only 8 out
> of these 12 uarts can be used at a time.
>
> Thus, Modify maximum number of 8250 serial uart ports which can be
> supported as well as modify how many 8250 serial uart ports which
> we can use in the runtime to 12 for all the SoCs.
>
> Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
I forget what we had already discussed here. To clarify from my
side: it's ok to raise the limit if there are any known boards that
connect more than 8 8250 style uarts to external devices or
populated connectors.
On the other hand, I don't see any dts file at the moment that
has more than the maximum of 8 in k3-am642-tqma64xxl-mbax4xxl.dts.
If you are adding another board that has more, it helps to
clarify in the patch description that this is indeed a board
requirement, and not just done because the chip has additional
unused uarts.
Arnd
next prev parent reply other threads:[~2024-05-17 6:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-16 9:57 Bhavya Kapoor
2024-05-16 10:07 ` Bhavya Kapoor
2024-05-17 6:49 ` Arnd Bergmann [this message]
2024-05-28 6:26 ` Bhavya Kapoor
2024-05-28 6:34 ` Krzysztof Kozlowski
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