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From: Sam Protsenko <semen.protsenko@linaro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Will McVicker <willmcvicker@google.com>,
Russell King <linux@armlinux.org.uk>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Michael Ellerman <mpe@ellerman.id.au>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-i2c@vger.kernel.org
Subject: Re: [PATCH 2/2] arm64: defconfig: Enable Samsung I2C driver
Date: Mon, 8 Nov 2021 17:12:44 +0200 [thread overview]
Message-ID: <CAPLW+4=RMfTmLnOiC+=rAB1c0+rTqpqDpc-1UO+0BOmP3+0Z_Q@mail.gmail.com> (raw)
In-Reply-To: <433f2d77-90d0-53d9-2e04-a8c5feb16349@canonical.com>
On Mon, 8 Nov 2021 at 16:18, Krzysztof Kozlowski
<krzysztof.kozlowski@canonical.com> wrote:
>
> On 08/11/2021 14:49, Sam Protsenko wrote:
> > i2c-s3c2410 driver is needed for some arm64 Exynos SoCs, e.g. Exynos850.
> >
> > Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
> > ---
> > arch/arm64/configs/defconfig | 1 +
> > 1 file changed, 1 insertion(+)
>
> Hm, that's a little bit unexpected. I thought you will be also using the
> HSI2C driver (where Jaewon is adding USI support).
>
Thought you'd ask :) Exynos850 has both I2C and HSI2C blocks:
- I2C is a regular I2C, and uses s3c2410-i2c driver
- whilst HSI2C is a high-speed I2C (used for example for cameras),
and uses exynos5-hsi2c driver
I'll look into HSI2C enablement on Exynos850 soon as well, so Jaewon's
patches might be helpful for my case too -- didn't check that yet.
> Best regards,
> Krzysztof
next prev parent reply other threads:[~2021-11-08 15:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-08 13:49 [PATCH 1/2] arm: samsung: Remove HAVE_S3C2410_I2C and use direct dependencies Sam Protsenko
2021-11-08 13:49 ` [PATCH 2/2] arm64: defconfig: Enable Samsung I2C driver Sam Protsenko
2021-11-08 14:18 ` Krzysztof Kozlowski
2021-11-08 15:12 ` Sam Protsenko [this message]
2021-11-21 12:39 ` [PATCH 1/2] arm: samsung: Remove HAVE_S3C2410_I2C and use direct dependencies Krzysztof Kozlowski
2021-11-21 15:02 ` Sam Protsenko
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