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Re: [Qemu-devel] [PATCH 0/3] aspeed/i2c: fix receive done interrupt mode
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH 0/3] aspeed/i2c: fix receive done interrupt model |
Date: |
Tue, 25 Sep 2018 11:22:03 +0100 |
On 14 September 2018 at 07:35, Cédric Le Goater <address@hidden> wrote:
> Hello,
>
> The interrupt model of the Aspeed I2C controller does handle correctly
> the RX_DONE bit. As indicated in the AST2500 datasheet, the RX_DONE
> bit needs to be cleared to allow mode data to be received. This series
> fixes the behavior and delays the data reception until the bit has
> been cleared.
>
> Revealed by :
>
> [PATCH i2c-next v6] i2c: aspeed: Handle master/slave combined irq events
> https://lkml.org/lkml/2018/8/23/1366
>
> which fixes irq handling in Linux at high bus frequencies.
Applied to target-arm.next (with patch 1's TODO comment removed
and the commit message tweaked), thanks.
-- PMM