linux-kernel - Re: [PATCH v2 1/4] mfd: intel_soc_pmic_bxtwc: Use IRQ domain for USB Type-C device

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Message-ID: <2024100653-map-unequal-d687@gregkh>
Date: Sun, 6 Oct 2024 10:38:01 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	linux-usb@...r.kernel.org, Andy Shevchenko <andy@...nel.org>,
	Lee Jones <lee@...nel.org>, Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Zhang Ning <zhangn1985@...look.com>
Subject: Re: [PATCH v2 1/4] mfd: intel_soc_pmic_bxtwc: Use IRQ domain for USB
 Type-C device

On Sat, Oct 05, 2024 at 10:27:04PM +0300, Andy Shevchenko wrote:
> While design wise the idea of converting the driver to use
> the hierarchy of the IRQ chips is correct, the implementation
> has (inherited) flaws. This was unveiled when platform_get_irq()
> had started WARN() on IRQ 0 that is supposed to be a Linux
> IRQ number (also known as vIRQ).
> 
> Rework the driver to respect IRQ domain when creating each MFD
> device separately, as the domain is not the same for all of them.
> 
> Fixes: 9c6235c86332 ("mfd: intel_soc_pmic_bxtwc: Add bxt_wcove_usbc device")
> Fixes: d2061f9cc32d ("usb: typec: add driver for Intel Whiskey Cove PMIC USB Type-C PHY")
> Fixes: 57129044f504 ("mfd: intel_soc_pmic_bxtwc: Use chained IRQs for second level IRQ chips")
> Reported-by: Zhang Ning <zhangn1985@...look.com>
> Closes: https://lore.kernel.org/r/TY2PR01MB3322FEDCDC048B7D3794F922CDBA2@TY2PR01MB3322.jpnprd01.prod.outlook.com
> Tested-by: Zhang Ning <zhangn1985@...look.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>