From: claudiu beznea <claudiu.beznea@tuxon.dev>
To: geert+renesas@glider.be, linus.walleij@linaro.org,
biju.das.jz@bp.renesas.com, tglx@linutronix.de
Cc: linux-renesas-soc@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org,
Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Subject: Re: [PATCH v3] pinctrl: renesas: rzg2l: Configure the interrupt type on resume
Date: Fri, 19 Apr 2024 09:35:30 +0300 [thread overview]
Message-ID: <941bca2c-3a70-4c57-9d47-8334c320e8ce@tuxon.dev> (raw)
In-Reply-To: <20240419061924.3363667-1-claudiu.beznea.uj@bp.renesas.com>
On 19.04.2024 09:19, Claudiu wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
>
> Commit dce0919c83c3 ("irqchip/renesas-rzg2l: Do not set TIEN and TINT
> source at the same time") removed the setup of TINT from
> rzg2l_irqc_irq_enable(). To address the spourious interrupt issue the setup
> of TINT has been moved in rzg2l_tint_set_edge() though
> rzg2l_disable_tint_and_set_tint_source(). With this, the interrupts are
> not properly re-configured after a suspend-to-RAM cycle. To address
> this issue and avoid spurious interrupts while resumming set the
> interrupt type before enabling it.
>
> Fixes: dce0919c83c3 ("irqchip/renesas-rzg2l: Do not set TIEN and TINT source at the same time")
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
> ---
>
> Changes in v3:
I just noticed I used the wrong versioning here and in patch title. Sorry
for that. I'll send an update.
Please ignore this patch.
Thank you,
Claudiu Beznea
> - moved dev_crit() out of critical section
>
> Changes in v2:
> - none; this patch was part of series at [1] and added in v2 of that
> series
>
> [1] https://lore.kernel.org/all/20240320104230.446400-1-claudiu.beznea.uj@bp.renesas.com/
>
> drivers/pinctrl/renesas/pinctrl-rzg2l.c | 23 +++++++++++++----------
> 1 file changed, 13 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> index 93916553bcc7..20425afc6b33 100644
> --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> @@ -2045,7 +2045,9 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
>
> for (unsigned int i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) {
> struct irq_data *data;
> + unsigned long flags;
> unsigned int virq;
> + int ret;
>
> if (!pctrl->hwirq[i])
> continue;
> @@ -2063,17 +2065,18 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
> continue;
> }
>
> - if (!irqd_irq_disabled(data)) {
> - unsigned long flags;
> -
> - /*
> - * This has to be atomically executed to protect against a concurrent
> - * interrupt.
> - */
> - raw_spin_lock_irqsave(&pctrl->lock.rlock, flags);
> + /*
> + * This has to be atomically executed to protect against a concurrent
> + * interrupt.
> + */
> + raw_spin_lock_irqsave(&pctrl->lock.rlock, flags);
> + ret = rzg2l_gpio_irq_set_type(data, irqd_get_trigger_type(data));
> + if (!ret && !irqd_irq_disabled(data))
> rzg2l_gpio_irq_enable(data);
> - raw_spin_unlock_irqrestore(&pctrl->lock.rlock, flags);
> - }
> + raw_spin_unlock_irqrestore(&pctrl->lock.rlock, flags);
> +
> + if (ret)
> + dev_crit(pctrl->dev, "Failed to set IRQ type for virq=%u\n", virq);
> }
> }
>
prev parent reply other threads:[~2024-04-19 6:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-19 6:19 [PATCH v3] pinctrl: renesas: rzg2l: Configure the interrupt type on resume Claudiu
2024-04-19 6:35 ` claudiu beznea [this message]
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