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dkim=pass header.i=@maquefel.me From: Nikita Shubin Cc: Andy Shevchenko , Nikita Shubin , Linus Walleij , Bartosz Golaszewski , Alexander Sverdlin , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 2/7] gpio: gpio-ep93xx: Fix single irqchip with multi gpiochips Date: Fri, 5 Feb 2021 11:05:02 +0300 Message-Id: <20210205080507.16007-3-nikita.shubin@maquefel.me> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210205080507.16007-1-nikita.shubin@maquefel.me> References: <20210205080507.16007-1-nikita.shubin@maquefel.me> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Fixes the following warnings which results in interrupts disabled on port B/F: gpio gpiochip1: (B): detected irqchip that is shared with multiple gpiochip= s: please fix the driver. gpio gpiochip5: (F): detected irqchip that is shared with multiple gpiochip= s: please fix the driver. - added separate irqchip for each interrupt capable gpiochip - provided unique names for each irqchip Fixes: d2b091961510 ("gpio: ep93xx: Pass irqchip when adding gpiochip") Signed-off-by: Nikita Shubin --- drivers/gpio/gpio-ep93xx.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-) diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index e3b5e2c37259..3c9f7233e62d 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -38,6 +38,7 @@ #define EP93XX_GPIO_F_IRQ_BASE 80 =20 struct ep93xx_gpio_irq_chip { + struct irq_chip ic; u8 irq_offset; u8 int_unmasked; u8 int_enabled; @@ -284,9 +285,11 @@ struct ep93xx_gpio_bank { bool has_irq; bool has_hierarchical_irq; unsigned int irq_base; + const char *irq_name; }; =20 -#define EP93XX_GPIO_BANK(_label, _data, _dir, _irq, _base, _has_irq, _has_= hier, _irq_base) \ +#define EP93XX_GPIO_BANK(_label, _data, _dir, _irq, _base, _has_irq, _has_= hier, _irq_base, \ +_irq_name) \ { \ .label =3D _label, \ .data =3D _data, \ @@ -296,20 +299,21 @@ struct ep93xx_gpio_bank { .has_irq =3D _has_irq, \ .has_hierarchical_irq =3D _has_hier, \ .irq_base =3D _irq_base, \ + .irq_name =3D _irq_name, \ } =20 static struct ep93xx_gpio_bank ep93xx_gpio_banks[] =3D { /* Bank A has 8 IRQs */ - EP93XX_GPIO_BANK("A", 0x00, 0x10, 0x90, 0, true, false, 64), + EP93XX_GPIO_BANK("A", 0x00, 0x10, 0x90, 0, true, false, 64, "gpio-irq-a"), /* Bank B has 8 IRQs */ - EP93XX_GPIO_BANK("B", 0x04, 0x14, 0xac, 8, true, false, 72), - EP93XX_GPIO_BANK("C", 0x08, 0x18, 0x00, 40, false, false, 0), - EP93XX_GPIO_BANK("D", 0x0c, 0x1c, 0x00, 24, false, false, 0), - EP93XX_GPIO_BANK("E", 0x20, 0x24, 0x00, 32, false, false, 0), + EP93XX_GPIO_BANK("B", 0x04, 0x14, 0xac, 8, true, false, 72, "gpio-irq-b"), + EP93XX_GPIO_BANK("C", 0x08, 0x18, 0x00, 40, false, false, 0, 0), + EP93XX_GPIO_BANK("D", 0x0c, 0x1c, 0x00, 24, false, false, 0, 0), + EP93XX_GPIO_BANK("E", 0x20, 0x24, 0x00, 32, false, false, 0, 0), /* Bank F has 8 IRQs */ - EP93XX_GPIO_BANK("F", 0x30, 0x34, 0x4c, 16, false, true, 0), - EP93XX_GPIO_BANK("G", 0x38, 0x3c, 0x00, 48, false, false, 0), - EP93XX_GPIO_BANK("H", 0x40, 0x44, 0x00, 56, false, false, 0), + EP93XX_GPIO_BANK("F", 0x30, 0x34, 0x4c, 16, false, true, 0, "gpio-irq-b"), + EP93XX_GPIO_BANK("G", 0x38, 0x3c, 0x00, 48, false, false, 0, 0), + EP93XX_GPIO_BANK("H", 0x40, 0x44, 0x00, 56, false, false, 0, 0), }; =20 static int ep93xx_gpio_set_config(struct gpio_chip *gc, unsigned offset, @@ -331,6 +335,16 @@ static int ep93xx_gpio_f_to_irq(struct gpio_chip *gc, = unsigned offset) return EP93XX_GPIO_F_IRQ_BASE + offset; } =20 +static void ep93xx_init_irq_chip(struct irq_chip *ic, const char *irq_name) +{ + ic->name =3D irq_name; + ic->irq_ack =3D ep93xx_gpio_irq_ack; + ic->irq_mask_ack =3D ep93xx_gpio_irq_mask_ack; + ic->irq_mask =3D ep93xx_gpio_irq_mask; + ic->irq_unmask =3D ep93xx_gpio_irq_unmask; + ic->irq_set_type =3D ep93xx_gpio_irq_type; +} + static int ep93xx_gpio_add_bank(struct ep93xx_gpio_chip *egc, struct platform_device *pdev, struct ep93xx_gpio *epg, @@ -352,6 +366,8 @@ static int ep93xx_gpio_add_bank(struct ep93xx_gpio_chip= *egc, =20 girq =3D &gc->irq; if (bank->has_irq || bank->has_hierarchical_irq) { + struct irq_chip *ic; + gc->set_config =3D ep93xx_gpio_set_config; egc->eic =3D devm_kcalloc(dev, 1, sizeof(*egc->eic), @@ -359,7 +375,9 @@ static int ep93xx_gpio_add_bank(struct ep93xx_gpio_chip= *egc, if (!egc->eic) return -ENOMEM; egc->eic->irq_offset =3D bank->irq; - girq->chip =3D &ep93xx_gpio_irq_chip; + ic =3D &egc->eic->ic; + ep93xx_init_irq_chip(ic, bank->irq_name); + girq->chip =3D ic; } =20 if (bank->has_irq) { --=20 2.26.2