diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0105-i2c-aspeed-fix-arbitration-loss-handling-logic.patch')
-rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0105-i2c-aspeed-fix-arbitration-loss-handling-logic.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0105-i2c-aspeed-fix-arbitration-loss-handling-logic.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0105-i2c-aspeed-fix-arbitration-loss-handling-logic.patch deleted file mode 100644 index f5c0a6ec8..000000000 --- a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0105-i2c-aspeed-fix-arbitration-loss-handling-logic.patch +++ /dev/null @@ -1,38 +0,0 @@ -From 2cf0bee18a390a90cd1e5736ba79909a8feef94e Mon Sep 17 00:00:00 2001 -From: Jae Hyun Yoo <jae.hyun.yoo@intel.com> -Date: Tue, 28 Apr 2020 12:08:14 -0700 -Subject: [PATCH] i2c: aspeed: fix arbitration loss handling logic - -When an arbitration loss happens in a multi-master bus, driver -drops the packet induce I2C subsystem to retry the transaction -by returning -EAGAIN. During this handling, tx_ack comes along -sometimes and it causes this this garbage printing -out: - -aspeed-i2c-bus 1e78a400.i2c-bus: irq handled != irq. expected 0x00000009, but was 0x00000008 - -To fix this issue, this commit adds the tx_ack flag clearing into -the arbitration loss handling logic. - -Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> ---- - drivers/i2c/busses/i2c-aspeed.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c -index b56e60508914..8625c0da440b 100644 ---- a/drivers/i2c/busses/i2c-aspeed.c -+++ b/drivers/i2c/busses/i2c-aspeed.c -@@ -896,6 +896,9 @@ static u32 aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus, u32 irq_status) - if (bus->master_state != ASPEED_I2C_MASTER_INACTIVE) { - bus->cmd_err = ret; - bus->master_state = ASPEED_I2C_MASTER_INACTIVE; -+ if (ret == -EAGAIN) -+ irq_handled |= (irq_status & -+ ASPEED_I2CD_INTR_TX_ACK); - goto out_complete; - } - } --- -2.7.4 - |