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[Qemu-devel] [PATCH 0/3] aspeed/i2c: fix receive done interrupt model
From: |
Cédric Le Goater |
Subject: |
[Qemu-devel] [PATCH 0/3] aspeed/i2c: fix receive done interrupt model |
Date: |
Fri, 14 Sep 2018 08:35:03 +0200 |
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.
Thanks,
C.
Cédric Le Goater (1):
aspeed/i2c: interrupts should be cleared by software only
Guenter Roeck (2):
aspeed/i2c: Handle receive command in separate function
aspeed/i2c: Fix receive done interrupt handling
hw/i2c/aspeed_i2c.c | 68 +++++++++++++++++++++++++++++++--------------
1 file changed, 47 insertions(+), 21 deletions(-)
--
2.17.1
- [Qemu-devel] [PATCH 0/3] aspeed/i2c: fix receive done interrupt model,
Cédric Le Goater <=
[Qemu-devel] [PATCH 2/3] aspeed/i2c: Handle receive command in separate function, Cédric Le Goater, 2018/09/14
[Qemu-devel] [PATCH 3/3] aspeed/i2c: Fix receive done interrupt handling, Cédric Le Goater, 2018/09/14
Re: [Qemu-devel] [PATCH 0/3] aspeed/i2c: fix receive done interrupt model, Peter Maydell, 2018/09/25