linux-kernel - [PATCH v4 0/5] i2c:ocores: improvements

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Date:   Mon, 11 Feb 2019 09:31:17 +0100
From:   Federico Vaga <federico.vaga@...n.ch>
To:     Peter Korsgaard <peter@...sgaard.com>, Andrew Lunn <andrew@...n.ch>
CC:     <linux-i2c@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 0/5] i2c:ocores: improvements

This patch set provides improvements to the i2c-ocore driver.

[V3 -> V4]
- add reviews-by/tested-by
- add comment to justify the formula in
    udelay((8 * 1000) / i2c->bus_clock_khz);

[V2 -> V3]
- fix particular error condition on platform_get_irq(). Copied from
  https://patchwork.ozlabs.org/patch/1038409/

[V1 -> V2]
- replaced usleep_range() with udelay() so that the polling version can be
  used in atomic context.
- added dedicated patch for minor style issues
- fixed delay computation
- use spin_lock_irqsave(), instead of spin_trylock_irqsave(). IACK is always
  necessary and a trylock would generate an extra interrupt for nothing
- make the driver ready for an eventual master_xfer_irqless()