[PATCH v6 3/6] mfd: at91-usart: added mfd driver for usart
From: alexandre.belloni@bootlin.com (Alexandre Belloni)
Date: 2018-06-11 15:36:49
Also in:
linux-devicetree, linux-serial, linux-spi, lkml
On 07/06/2018 14:00:17+0300, Radu Pirea wrote:
+static int at91_usart_mode_probe(struct platform_device *pdev)
+{
+ struct mfd_cell cell;
+ u32 opmode;This has to be initialized to AT91_USART_MODE_SERIAL...
+ int err; + + err = device_property_read_u32(&pdev->dev, "atmel,usart-mode", &opmode); +
because if the property is not present, then opmode will not be modified which means it could hold the value of AT91_USART_MODE_SPI. -- Alexandre Belloni, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com