From: Yixun Lan <dlan@kernel.org>
To: Junhui Liu <junhui.liu@pigmoral.tech>
Cc: Heiko Schocher <hs@nabladev.com>,
u-boot-spacemit@groups.io, u-boot@lists.u-boot-project.org,
Huan Zhou <pericycle.cc@gmail.com>,
Guodong Xu <guodong.xu@oss.qualcomm.com>,
Tom Rini <trini@konsulko.com>,
Raymond Mao <raymond.mao@riscstar.com>,
Lukasz Majewski <lukma@denx.de>,
Troy Mitchell <troy.mitchell@linux.spacemit.com>
Subject: Re: [PATCH v2 3/4] i2c: k1: enable both functional and bus clocks
Date: Mon, 17 Aug 2026 08:31:25 +0000 [thread overview]
Message-ID: <20260817083125-GKA571540@kernel.org> (raw)
In-Reply-To: <20260815-k1-i2c-fix-v2-3-7d2a48607233@pigmoral.tech>
Hi Junhui,
On 11:40 Sat 15 Aug , Junhui Liu wrote:
> The K1 I2C controller requires both its functional clock and APB bus
> clock to operate. The device tree provides them as "func" and "bus", but
> the driver currently acquires and enables only the first clock.
>
> Acquire both clocks by name and enable them during probe. Use explicit
> named lookups instead of the bulk clock API to align with the K1 Linux
> driver and keep the roles of the two clocks clear if functional clock
> rate configuration is needed later.
>
> Fixes: 271546fb8e54 ("i2c: k1: add I2C driver support")
> Signed-off-by: Junhui Liu <junhui.liu@pigmoral.tech>
Reviewed-by: Yixun Lan <dlan@kernel.org>
> ---
> drivers/i2c/k1_i2c.c | 18 ++++++++++++------
> 1 file changed, 12 insertions(+), 6 deletions(-)
>
--
Yixun Lan (dlan)
next prev parent reply other threads:[~2026-08-17 13:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-15 3:40 [PATCH v2 0/4] i2c/clk: spacemit: k1: fix I2C bus configuration and clock handling Junhui Liu
2026-08-15 3:40 ` [PATCH v2 1/4] i2c: k1: fix wrong bus speed setting Junhui Liu
2026-08-17 8:29 ` Yixun Lan
2026-08-17 9:12 ` Troy Mitchell
2026-08-17 14:25 ` Junhui Liu
2026-08-18 1:03 ` Troy Mitchell
2026-08-15 3:40 ` [PATCH v2 2/4] clk: spacemit: k1: add TWSI bus clocks to SPL Junhui Liu
2026-08-15 3:40 ` [PATCH v2 3/4] i2c: k1: enable both functional and bus clocks Junhui Liu
2026-08-17 4:50 ` Heiko Schocher via U-Boot
2026-08-17 8:31 ` Yixun Lan [this message]
2026-08-17 8:56 ` Troy Mitchell
2026-08-17 9:18 ` Yixun Lan
2026-08-18 1:03 ` Troy Mitchell
2026-08-18 6:21 ` Yao Zi
2026-08-18 6:26 ` Yao Zi
2026-08-15 3:40 ` [PATCH v2 4/4] clk: spacemit: k1: remove bus gate from TWSI functional clocks Junhui Liu
2026-08-17 8:55 ` Troy Mitchell
2026-08-18 6:53 ` [PATCH v2 0/4] i2c/clk: spacemit: k1: fix I2C bus configuration and clock handling Yao Zi
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