Re: [PATCH 2/2] i2c: tegra: Add SMBus block read and SMBus alert functions
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-12-09 15:43:57
Also in:
dri-devel, linux-devicetree, linux-i2c, linux-media, lkml
09.12.2021 18:05, Akhil R пишет:
+static int tegra_i2c_setup_smbalert(struct tegra_i2c_dev *i2c_dev)
+{
+ struct tegra_i2c_smbalert *smbalert = &i2c_dev->smbalert;
+ struct gpio_desc *alert_gpiod;
+ struct i2c_client *ara;
+
+ alert_gpiod = devm_gpiod_get(i2c_dev->dev, "smbalert", GPIOD_IN);
+ if (IS_ERR(alert_gpiod))
+ return PTR_ERR(alert_gpiod);
+
+ smbalert->alert_data.irq = gpiod_to_irq(alert_gpiod);
+ if (smbalert->alert_data.irq <= 0)
+ return smbalert->alert_data.irq;Why GPIO is needed at all if what's actually needed is the interrupt?