From: Raag Jadav <raag.jadav@intel.com>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: "Matthew Brost" <matthew.brost@intel.com>,
"Thomas Hellström" <thomas.hellstrom@linux.intel.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Andi Shyti" <andi.shyti@kernel.org>,
"Ramesh Babu B" <ramesh.babu.b@intel.com>,
"Michael J. Ruhl" <michael.j.ruhl@intel.com>,
linux-kernel@vger.kernel.org, intel-xe@lists.freedesktop.org,
stable@vger.kernel.org
Subject: Re: [PATCH v6 2/3] drm/xe/i2c: Fix the interrupt handling
Date: Wed, 29 Jul 2026 17:30:55 +0200 [thread overview]
Message-ID: <amocr6YvYCux0ylv@black.igk.intel.com> (raw)
In-Reply-To: <20260722133554.2079612-3-heikki.krogerus@linux.intel.com>
On Wed, Jul 22, 2026 at 03:35:53PM +0200, Heikki Krogerus wrote:
> The platforms that support the interrupt from the I2C
> adapter can not handle the amount of interrupts the adapter
> generates because of the way the IRQ is routed in the
> hardware. The I2C controller driver has to be kept in
> polling mode because of that.
>
> The AMC MCU can still generate critical alerts that have to
> be handled. The interrupt from SMBus Alert is left enabled
> and handled separately in the Xe. The alerts from the AMC
> will cause the device to be declared wedged for now.
>
> Fixes: f0e53aadd702 ("drm/xe: Support for I2C attached MCUs")
> Cc: stable@vger.kernel.org
> Co-developed-by: Ramesh Babu B <ramesh.babu.b@intel.com>
> Signed-off-by: Ramesh Babu B <ramesh.babu.b@intel.com>
> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Assuming no further changes came up during validation
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
next prev parent reply other threads:[~2026-07-29 15:31 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-22 13:35 [PATCH v6 0/3] drm/xe/i2c: alerts and controller enabling modifications Heikki Krogerus
2026-07-22 13:35 ` [PATCH v6 1/3] i2c: designware: Global register definitions Heikki Krogerus
2026-07-22 13:35 ` [PATCH v6 2/3] drm/xe/i2c: Fix the interrupt handling Heikki Krogerus
2026-07-29 15:30 ` Raag Jadav [this message]
2026-08-10 5:04 ` Raag Jadav
2026-08-10 8:24 ` Heikki Krogerus
2026-07-22 13:35 ` [PATCH v6 3/3] drm/xe/i2c: Keep the i2c controller always enabled Heikki Krogerus
2026-07-29 15:34 ` Raag Jadav
2026-07-30 11:03 ` Heikki Krogerus
2026-07-30 11:07 ` Mika Westerberg
2026-07-28 15:50 ` [PATCH v6 0/3] drm/xe/i2c: alerts and controller enabling modifications Heikki Krogerus
2026-07-29 15:24 ` Raag Jadav
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