char/genrtc: remove powerpc support
PowerPC is the last architecture using the GEN_RTC driver on some machines, but we can migrate them all to using the RTC_DRV_GENERIC driver instead now. This moves over the CONFIG_GEN_RTC option from drivers/char into arch/powerpc/platforms/Kconfig and makes it just select the replacement driver instead, for the only reason of not breaking existing defconfig and .config files that users may have. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>hifive-unleashed-5.1
Arnd Bergmann
Alexandre Belloni
parent
169047f447
commit
835ea93e9d
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@ -1,78 +0,0 @@
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/*
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* Real-time clock definitions and interfaces
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*
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* Author: Tom Rini <trini@mvista.com>
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*
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* 2002 (c) MontaVista, Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*
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* Based on:
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* include/asm-m68k/rtc.h
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*
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* Copyright Richard Zidlicky
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* implementation details for genrtc/q40rtc driver
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*
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* And the old drivers/macintosh/rtc.c which was heavily based on:
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* Linux/SPARC Real Time Clock Driver
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* Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
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*
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* With additional work by Paul Mackerras and Franz Sirl.
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*/
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#ifndef __ASM_POWERPC_RTC_H__
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#define __ASM_POWERPC_RTC_H__
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#ifdef __KERNEL__
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#include <linux/rtc.h>
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#include <asm/machdep.h>
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#include <asm/time.h>
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#define RTC_PIE 0x40 /* periodic interrupt enable */
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#define RTC_AIE 0x20 /* alarm interrupt enable */
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#define RTC_UIE 0x10 /* update-finished interrupt enable */
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/* some dummy definitions */
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#define RTC_BATT_BAD 0x100 /* battery bad */
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#define RTC_SQWE 0x08 /* enable square-wave output */
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#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */
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#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */
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#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */
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static inline unsigned int get_rtc_time(struct rtc_time *time)
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{
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if (ppc_md.get_rtc_time)
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ppc_md.get_rtc_time(time);
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return RTC_24H;
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}
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/* Set the current date and time in the real time clock. */
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static inline int set_rtc_time(struct rtc_time *time)
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{
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if (ppc_md.set_rtc_time)
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return ppc_md.set_rtc_time(time);
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return -EINVAL;
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}
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static inline unsigned int get_rtc_ss(void)
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{
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struct rtc_time h;
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get_rtc_time(&h);
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return h.tm_sec;
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}
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static inline int get_rtc_pll(struct rtc_pll_info *pll)
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{
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return -EINVAL;
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}
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static inline int set_rtc_pll(struct rtc_pll_info *pll)
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{
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return -EINVAL;
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}
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#endif /* __KERNEL__ */
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#endif /* __ASM_POWERPC_RTC_H__ */
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@ -321,6 +321,17 @@ config OF_RTC
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Uses information from the OF or flattened device tree to instantiate
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platform devices for direct mapped RTC chips like the DS1742 or DS1743.
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config GEN_RTC
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bool "Use the platform RTC operations from user space"
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select RTC_CLASS
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select RTC_DRV_GENERIC
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help
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This option provides backwards compatibility with the old gen_rtc.ko
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module that was traditionally used for old PowerPC machines.
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Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
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replacing their get_rtc_time/set_rtc_time callbacks with
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a proper RTC device driver.
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config SIMPLE_GPIO
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bool "Support for simple, memory-mapped GPIO controllers"
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depends on PPC
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@ -20,9 +20,9 @@
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/rtc.h>
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#include <asm/firmware.h>
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#include <asm/rtc.h>
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#include <asm/lv1call.h>
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#include <asm/ps3.h>
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@ -325,10 +325,10 @@ config JS_RTC
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To compile this driver as a module, choose M here: the
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module will be called js-rtc.
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config GEN_RTC
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config OLD_GEN_RTC
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tristate "Generic /dev/rtc emulation"
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depends on RTC!=y
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depends on PPC
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depends on BROKEN
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---help---
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If you say Y here and create a character special file /dev/rtc with
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major number 10 and minor number 135 using mknod ("man mknod"), you
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@ -25,7 +25,7 @@ obj-$(CONFIG_APPLICOM) += applicom.o
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obj-$(CONFIG_SONYPI) += sonypi.o
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obj-$(CONFIG_RTC) += rtc.o
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obj-$(CONFIG_HPET) += hpet.o
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obj-$(CONFIG_GEN_RTC) += genrtc.o
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obj-$(CONFIG_OLD_GEN_RTC) += genrtc.o
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obj-$(CONFIG_EFI_RTC) += efirtc.o
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obj-$(CONFIG_DS1302) += ds1302.o
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obj-$(CONFIG_XILINX_HWICAP) += xilinx_hwicap/
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