From: Francesco Dolcini <francesco@dolcini.it>
To: Parth Pancholi <parth105105@gmail.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Emanuele Ghidoli <emanuele.ghidoli@toradex.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Parth Pancholi <parth.pancholi@toradex.com>
Subject: Re: [PATCH v2] usb: typec: tcpci: support edge irq
Date: Thu, 5 Sep 2024 16:25:54 +0200 [thread overview]
Message-ID: <20240905142554.GA40671@francesco-nb> (raw)
In-Reply-To: <20240905065328.7116-1-parth105105@gmail.com>
On Thu, Sep 05, 2024 at 08:53:28AM +0200, Parth Pancholi wrote:
> From: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
>
> TCPCI USB PHY - PTN5110 could be used with SOCs that only support
> the edge-triggered GPIO interrupts such as TI's K3 device AM69.
> Move the interrupt configuration to the firmware which would
> allow to accommodate edge triggered interrupts for such SOCs.
> In order to support the edge interrupts, register irq line in advance
> and keep track of occurrence during port registering.
>
> When the edge interrupts are used, it is observed that some of the
> interrupts are missed when tcpci_irq() is serving the current
> interrupt. Therefore, check the status register at the end of
> tcpci_irq() and re-run the function if the status is not clear
> i.e. pending interrupt.
>
> Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
> Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
prev parent reply other threads:[~2024-09-05 14:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-05 6:53 [PATCH v2] usb: typec: tcpci: support edge irq Parth Pancholi
2024-09-05 11:36 ` Heikki Krogerus
2024-09-05 14:25 ` Francesco Dolcini [this message]
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