Messages in this thread | | | Subject | Re: [PATCH v2 net] net: phy: mxl-gpy: add MDINT workaround | From | patchwork-bot+netdevbpf@kernel ... | Date | Thu, 08 Dec 2022 04:10:17 +0000 |
| |
Hello:
This patch was applied to netdev/net.git (master) by Jakub Kicinski <kuba@kernel.org>:
On Mon, 5 Dec 2022 21:04:53 +0100 you wrote: > At least the GPY215B and GPY215C has a bug where it is still driving the > interrupt line (MDINT) even after the interrupt status register is read > and its bits are cleared. This will cause an interrupt storm. > > Although the MDINT is multiplexed with a GPIO pin and theoretically we > could switch the pinmux to GPIO input mode, this isn't possible because > the access to this register will stall exactly as long as the interrupt > line is asserted. We exploit this very fact and just read a random > internal register in our interrupt handler. This way, it will be delayed > until the external interrupt line is released and an interrupt storm is > avoided. > > [...]
Here is the summary with links: - [v2,net] net: phy: mxl-gpy: add MDINT workaround https://git.kernel.org/netdev/net/c/5f4d487d01ff
You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
| |