linux-kernel - [PATCH v2 0/2] Fix tps65217-charger vs vbus irq conflict

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Date:   Wed, 23 Aug 2023 10:54:28 +0200
From:   Grant B Adams <nemith592@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linux-omap@...r.kernel.org, tony@...mide.com,
        Grant B Adams <nemith592@...il.com>,
        Sebastian Reichel <sre@...nel.org>, Bin Liu <b-liu@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: [PATCH v2 0/2] Fix tps65217-charger vs vbus irq conflict

Both the tps65217-charger and vbus drivers are trying to allocate the same
TPS65217 device interrupt line (TPS65217 is a TI power management IC) 
which results in the following error and a probe failure:

genirq: Flags mismatch irq 148. 00002000 (vbus) vs. 00000000 
(tps65217-charger)

For the Beaglebone Black's config the tps65217-charger driver is currently
disabled and therefore no conflict. Based on comments from Robert C Nelson
this driver has been disabled for a long time and he is uncertain on the
reasons why it was disabled. With a battery connected to the BBB, I 
re-enabled the tps65217-charger driver which resulted in the 
abovementioned.

The conflict is resolved by changing both driver's threaded interrupt
request function from IRQF_ONESHOT to IRQF_SHARED.

Changes in v2:
   Initial patches where emailed individually and not threaded. V2 patches 
   sent as email thread. Feedback provided by gregkh@...uxfoundation.org

Grant B Adams (2):
  power: supply: Fix tps65217-charger vs vbus irq conflict
  usb: musb: dsps: Fix vbus vs tps65217-charger irq conflict

 drivers/power/supply/tps65217_charger.c | 2 +-
 drivers/usb/musb/musb_dsps.c            | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

-- 
2.34.1