diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2022-01-04 19:42:38 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-01-24 03:12:45 +0300 |
| commit | aa28514592d52043f4837a6457d6310452135ae1 (patch) | |
| tree | c374a41527e27287c3b0efc95edf2c2db4cee5ca /drivers/pinctrl | |
| parent | 25d2e41cf59bd6ccd23adc2965a157053bc3ed5c (diff) | |
| download | linux-aa28514592d52043f4837a6457d6310452135ae1.tar.xz | |
pinctrl: cherryview: Trigger hwirq0 for interrupt-lines without a mapping
Commit bdfbef2d29dc ("pinctrl: cherryview: Don't use selection 0 to mark
an interrupt line as unused") made the code properly differentiate
between unset vs (hwirq) 0 entries in the GPIO-controller interrupt-line
to GPIO pinnumber/hwirq mapping.
This is causing some boards to not boot. This commit restores the old
behavior of triggering hwirq 0 when receiving an interrupt on an
interrupt-line for which there is no mapping.
Fixes: bdfbef2d29dc ("pinctrl: cherryview: Don't use selection 0 to mark an interrupt line as unused")
Reported-and-tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20220104164238.253142-1-hdegoede@redhat.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-cherryview.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index abffda1fd51e..1d5818269076 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1471,8 +1471,9 @@ static void chv_gpio_irq_handler(struct irq_desc *desc) offset = cctx->intr_lines[intr_line]; if (offset == CHV_INVALID_HWIRQ) { - dev_err(dev, "interrupt on unused interrupt line %u\n", intr_line); - continue; + dev_warn_once(dev, "interrupt on unmapped interrupt line %u\n", intr_line); + /* Some boards expect hwirq 0 to trigger in this case */ + offset = 0; } generic_handle_domain_irq(gc->irq.domain, offset); |