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Commit 7ce40277 authored by Andrey Smirnov's avatar Andrey Smirnov Committed by Linus Walleij
Browse files

gpio: of: Check for "spi-cs-high" in child instead of parent node 



"spi-cs-high" is going to be specified in child node of an SPI
controller's representing attached SPI device, so change the code to
look for it there, instead of checking parent node.

Signed-off-by: default avatarAndrey Smirnov <andrew.smirnov@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent e5545c94

drivers/gpio/gpiolib-of.c

+3 −3
Original line number Diff line number Diff line
@@ -143,16 +143,16 @@ static void of_gpio_flags_quirks(struct device_node *np, 
				 * conflict and the "spi-cs-high" flag will

				 * take precedence.

				 */

				if (of_property_read_bool(np, "spi-cs-high")) {

				if (of_property_read_bool(child, "spi-cs-high")) {

					if (*flags & OF_GPIO_ACTIVE_LOW) {

						pr_warn("%s GPIO handle specifies active low - ignored\n",

							of_node_full_name(np));

							of_node_full_name(child));

						*flags &= ~OF_GPIO_ACTIVE_LOW;

					}

				} else {

					if (!(*flags & OF_GPIO_ACTIVE_LOW))

						pr_info("%s enforce active low on chipselect handle\n",

							of_node_full_name(np));

							of_node_full_name(child));

					*flags |= OF_GPIO_ACTIVE_LOW;

				}

				break;