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From: Aurelien Jarno <aurelien@aurel32.net>
To: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Cc: Andi Shyti <andi.shyti@kernel.org>, Yixun Lan <dlan@gentoo.org>,
	Alex Elder <elder@riscstar.com>,
	Troy Mitchell <troymitchell988@gmail.com>,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org, spacemit@lists.linux.dev
Subject: Re: [PATCH 0/6] i2c: spacemit: fix and introduce pio
Date: Mon, 22 Sep 2025 22:55:33 +0200	[thread overview]
Message-ID: <aNG3xXKEYvhGfKjb@aurel32.net> (raw)
In-Reply-To: <20250827-k1-i2c-atomic-v1-0-e59bea02d680@linux.spacemit.com>

Hi,

On 2025-08-27 15:39, Troy Mitchell wrote:
> Previously, there were a few latent issues in the I2C driver.
> 
> These did not manifest under interrupt mode, but they were
> still present and could be triggered when running in PIO mode.
> 
> This series addresses those issues and adds support for PIO
> mode transfers.
> 
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>

Thanks for this series. Based on it and with the few fixes suggested in 
the individual patches, I have been able to write a small power reset 
driver for the P1 chip, supporting reset and shutdown. I'll post it on 
the list in the next days.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net

WARNING: multiple messages have this Message-ID (diff)
From: Aurelien Jarno <aurelien@aurel32.net>
To: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Cc: Andi Shyti <andi.shyti@kernel.org>, Yixun Lan <dlan@gentoo.org>,
	Alex Elder <elder@riscstar.com>,
	Troy Mitchell <troymitchell988@gmail.com>,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org, spacemit@lists.linux.dev
Subject: Re: [PATCH 0/6] i2c: spacemit: fix and introduce pio
Date: Mon, 22 Sep 2025 22:55:33 +0200	[thread overview]
Message-ID: <aNG3xXKEYvhGfKjb@aurel32.net> (raw)
In-Reply-To: <20250827-k1-i2c-atomic-v1-0-e59bea02d680@linux.spacemit.com>

Hi,

On 2025-08-27 15:39, Troy Mitchell wrote:
> Previously, there were a few latent issues in the I2C driver.
> 
> These did not manifest under interrupt mode, but they were
> still present and could be triggered when running in PIO mode.
> 
> This series addresses those issues and adds support for PIO
> mode transfers.
> 
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>

Thanks for this series. Based on it and with the few fixes suggested in 
the individual patches, I have been able to write a small power reset 
driver for the P1 chip, supporting reset and shutdown. I'll post it on 
the list in the next days.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net

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  parent reply	other threads:[~2025-09-22 20:55 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-27  7:39 [PATCH 0/6] i2c: spacemit: fix and introduce pio Troy Mitchell
2025-08-27  7:39 ` Troy Mitchell
2025-08-27  7:39 ` [PATCH 1/6] i2c: spacemit: ensure bus release check runs when wait_bus_idle() fails Troy Mitchell
2025-08-27  7:39   ` Troy Mitchell
2025-09-22 20:55   ` Aurelien Jarno
2025-09-22 20:55     ` Aurelien Jarno
2025-08-27  7:39 ` [PATCH 2/6] i2c: spacemit: remove stop function to avoid bus error Troy Mitchell
2025-08-27  7:39   ` Troy Mitchell
2025-09-22 20:55   ` Aurelien Jarno
2025-09-22 20:55     ` Aurelien Jarno
2025-09-23  0:44     ` Troy Mitchell
2025-09-23  0:44       ` Troy Mitchell
2025-08-27  7:39 ` [PATCH 3/6] i2c: spacemit: disable SDA glitch fix to avoid restart delay Troy Mitchell
2025-08-27  7:39   ` Troy Mitchell
2025-08-27  9:32   ` Troy Mitchell
2025-08-27  9:32     ` Troy Mitchell
2025-09-22 20:56   ` Aurelien Jarno
2025-09-22 20:56     ` Aurelien Jarno
2025-09-23  0:46     ` Troy Mitchell
2025-09-23  0:46       ` Troy Mitchell
2025-08-27  7:39 ` [PATCH 4/6] i2c: spacemit: check SDA instead of SCL after bus reset Troy Mitchell
2025-08-27  7:39   ` Troy Mitchell
2025-09-22 20:56   ` Aurelien Jarno
2025-09-22 20:56     ` Aurelien Jarno
2025-09-23  0:47     ` Troy Mitchell
2025-09-23  0:47       ` Troy Mitchell
2025-08-27  7:39 ` [PATCH 5/6] i2c: spacemit: ensure SDA is released " Troy Mitchell
2025-08-27  7:39   ` Troy Mitchell
2025-09-22 20:56   ` Aurelien Jarno
2025-09-22 20:56     ` Aurelien Jarno
2025-09-23  0:49     ` Troy Mitchell
2025-09-23  0:49       ` Troy Mitchell
2025-08-27  7:39 ` [PATCH 6/6] i2c: spacemit: introduce pio for k1 Troy Mitchell
2025-08-27  7:39   ` Troy Mitchell
2025-09-22 20:56   ` Aurelien Jarno
2025-09-22 20:56     ` Aurelien Jarno
2025-09-23  1:14     ` Troy Mitchell
2025-09-23  1:14       ` Troy Mitchell
2025-09-23  1:21       ` Troy Mitchell
2025-09-23  1:21         ` Troy Mitchell
2025-09-22 20:55 ` Aurelien Jarno [this message]
2025-09-22 20:55   ` [PATCH 0/6] i2c: spacemit: fix and introduce pio Aurelien Jarno
2025-09-23  1:24   ` Troy Mitchell
2025-09-23  1:24     ` Troy Mitchell

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