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Fri, 27 Nov 2020 13:19:45 +0800 (CST) From: linsheng_111@163.com To: linus.walleij@linaro.org, khilman@baylibre.com, narmstrong@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, linshenghuan@hangtu-china.com Subject: [PATCH] add amlogic gpio to irq Date: Fri, 27 Nov 2020 13:19:27 +0800 Message-Id: <1606454367-3493-1-git-send-email-linsheng_111@163.com> X-Mailer: git-send-email 2.7.4 Signed-off-by: Lin shenghuan X-CM-TRANSID: DsCowAC37vJijMBfOncJYA--.30588S3 X-Coremail-Antispam: 1Uf129KBjvJXoWxJFy3Zr4xtw47Kr45Kr48WFg_yoW5WF45pF 43GFyYyr13JF47WryrAanrAFW3K3WxJFW2gay7Ka97uw13GFyDtFy29FW5Zrs8WrW5CF4r Jr4rGFWUWr45AFUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UHBTrUUUUU= X-Originating-IP: [115.238.52.186] X-CM-SenderInfo: polq2x5hqjsiirr6il2tof0z/1tbipBHpOlr7rnYrLgAAsa X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201127_002051_274133_45AB282D X-CRM114-Status: GOOD ( 14.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-gpio@vger.kernel.org, Lin shenghuan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Lin shenghuan --- drivers/pinctrl/meson/pinctrl-meson.c | 36 +++++++++++++++++++++++++++++++++++ drivers/pinctrl/meson/pinctrl-meson.h | 1 + 2 files changed, 37 insertions(+) diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index 20683cd..b91ff2c 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -51,6 +51,7 @@ #include #include #include +#include #include "../core.h" #include "../pinctrl-utils.h" @@ -598,6 +599,34 @@ static int meson_gpio_get(struct gpio_chip *chip, unsigned gpio) return !!(val & BIT(bit)); } +static int meson_gpio_to_irq(struct gpio_chip *chip, unsigned int gpio) +{ + struct meson_pinctrl *pc = gpiochip_get_data(chip); + struct meson_bank *bank; + struct irq_fwspec fwspec; + int hwirq; + + if (meson_get_bank(pc, gpio, &bank)) + return -EINVAL; + + if (bank->irq_first < 0) { + dev_warn(pc->dev, "no support irq for pin[%d]\n", gpio); + return -EINVAL; + } + if (!pc->of_irq) { + dev_err(pc->dev, "invalid device node of gpio INTC\n"); + return -EINVAL; + } + + hwirq = gpio - bank->first + bank->irq_first; + fwspec.fwnode = of_node_to_fwnode(pc->of_irq); + fwspec.param_count = 2; + fwspec.param[0] = hwirq; + fwspec.param[1] = IRQ_TYPE_NONE; + + return irq_create_fwspec_mapping(&fwspec); +} + static int meson_gpiolib_register(struct meson_pinctrl *pc) { int ret; @@ -612,6 +641,7 @@ static int meson_gpiolib_register(struct meson_pinctrl *pc) pc->chip.direction_output = meson_gpio_direction_output; pc->chip.get = meson_gpio_get; pc->chip.set = meson_gpio_set; + pc->chip.to_irq = meson_gpio_to_irq; pc->chip.base = -1; pc->chip.ngpio = pc->data->num_pins; pc->chip.can_sleep = false; @@ -682,6 +712,12 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc, pc->of_node = gpio_np; + pc->of_irq = of_find_compatible_node(NULL, + NULL, "amlogic,meson-gpio-intc"); + if (!pc->of_irq) + pc->of_irq = of_find_compatible_node(NULL, + NULL, "amlogic,meson-gpio-intc-ext"); + pc->reg_mux = meson_map_resource(pc, gpio_np, "mux"); if (IS_ERR_OR_NULL(pc->reg_mux)) { dev_err(pc->dev, "mux registers not found\n"); diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h index f8b0ff9..0f808bb 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.h +++ b/drivers/pinctrl/meson/pinctrl-meson.h @@ -131,6 +131,7 @@ struct meson_pinctrl { struct regmap *reg_ds; struct gpio_chip chip; struct device_node *of_node; + struct device_node *of_irq; }; #define FUNCTION(fn) \