From d890cfc25fe9421ffdff3a9ea678172addb36762 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 Aug 2023 09:31:06 +0200 Subject: rtc: ds2404: Convert to GPIO descriptors This converts the DS2404 to use GPIO descriptors instead of hard-coded global GPIO numbers. The platform data can be deleted because there are no in-tree users and it only contained GPIO numbers which are now passed using descriptor tables (or device tree or ACPI). The driver was rewritten to use a state container for the device driver state (struct ds2404 *chip) and pass that around instead of using a global singleton storage for the GPIO handles. When declaring GPIO descriptor tables or other hardware descriptions for the RTC driver, implementers should take care to flag the RESET line as active low, such as by using the GPIOD_ACTIVE_LOW flag in the descriptor table. Signed-off-by: Linus Walleij Link: https://lore.kernel.org/r/20230807-descriptors-rtc-v1-1-ce0f9187576e@linaro.org Signed-off-by: Alexandre Belloni --- include/linux/platform_data/rtc-ds2404.h | 20 -------------------- 1 file changed, 20 deletions(-) delete mode 100644 include/linux/platform_data/rtc-ds2404.h (limited to 'include/linux/platform_data') diff --git a/include/linux/platform_data/rtc-ds2404.h b/include/linux/platform_data/rtc-ds2404.h deleted file mode 100644 index 22c53825528f..000000000000 --- a/include/linux/platform_data/rtc-ds2404.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * ds2404.h - platform data structure for the DS2404 RTC. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2012 Sven Schnelle - */ - -#ifndef __LINUX_DS2404_H -#define __LINUX_DS2404_H - -struct ds2404_platform_data { - - unsigned int gpio_rst; - unsigned int gpio_clk; - unsigned int gpio_dq; -}; -#endif -- cgit v1.2.3