From 923c904c33023b168baad724d12c7e5260660210 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 May 2016 20:57:57 +0200 Subject: rtc: m68k: provide rtc_class_ops directly The rtc-generic driver provides an architecture specific wrapper on top of the generic rtc_class_ops abstraction, and m68k has another abstraction on top, which is a bit silly. This changes the m68k rtc-generic device to provide its rtc_class_ops directly, to reduce the number of layers by one. Signed-off-by: Arnd Bergmann Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Signed-off-by: Alexandre Belloni --- arch/m68k/kernel/time.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) (limited to 'arch/m68k') diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 3857737e3958..bd6417d38d5a 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -86,7 +86,24 @@ void read_persistent_clock(struct timespec *ts) } } -#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET +#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && IS_ENABLED(CONFIG_RTC_DRV_GENERIC) +static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm) +{ + mach_hwclk(0, tm); + return rtc_valid_tm(tm); +} + +static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm) +{ + if (mach_hwclk(1, tm) < 0) + return -EOPNOTSUPP; + return 0; +} + +static const struct rtc_class_ops generic_rtc_ops = { + .read_time = rtc_generic_get_time, + .set_time = rtc_generic_set_time, +}; static int __init rtc_init(void) { @@ -95,7 +112,9 @@ static int __init rtc_init(void) if (!mach_hwclk) return -ENODEV; - pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); + pdev = platform_device_register_data(NULL, "rtc-generic", -1, + &generic_rtc_ops, + sizeof(generic_rtc_ops)); return PTR_ERR_OR_ZERO(pdev); } -- cgit v1.2.3 From 598e8a1fb5e123894686cce5500775c2ae8b57fc Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 May 2016 20:57:58 +0200 Subject: rtc: m68k: provide ioctl for q40 The q40 platform is the only machine in the kernel that provides RTC_PLL_GET/RTC_PLL_SET ioctl commands in its rtc through the mach_get_rtc_pll/mach_set_rtc_pll callbacks. However, this currenctly works only in the old-style genrtc driver, not the (somewhat) modern rtc-generic driver replacing it. This adds an ioctl implementation to the m68k generic_rtc_ops in order to let both drivers provide the same API. After this, we should be able to remove support for genrtc from the m68k architecture. Signed-off-by: Arnd Bergmann Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Signed-off-by: Alexandre Belloni --- arch/m68k/kernel/time.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'arch/m68k') diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index bd6417d38d5a..4e5aa2f4f522 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -100,7 +100,32 @@ static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm) return 0; } +static int rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ + struct rtc_pll_info pll; + struct rtc_pll_info __user *argp = (void __user *)arg; + + switch (cmd) { + case RTC_PLL_GET: + if (!mach_get_rtc_pll || mach_get_rtc_pll(&pll)) + return -EINVAL; + return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0; + + case RTC_PLL_SET: + if (!mach_set_rtc_pll) + return -EINVAL; + if (!capable(CAP_SYS_TIME)) + return -EACCES; + if (copy_from_user(&pll, argp, sizeof(pll))) + return -EFAULT; + return mach_set_rtc_pll(&pll); + } + + return -ENOIOCTLCMD; +} + static const struct rtc_class_ops generic_rtc_ops = { + .ioctl = rtc_ioctl, .read_time = rtc_generic_get_time, .set_time = rtc_generic_set_time, }; -- cgit v1.2.3 From 084b3600e2d98ebbab968f91b8b8f48ffbbf2ecb Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 May 2016 20:57:59 +0200 Subject: char/genrtc: remove m68k support The asm/rtc.h header is only used for the old gen_rtc driver that has been replaced by rtc-generic. According to Geert Uytterhoeven, nobody has used the old driver on m68k for a long time, so we can now just remove the header file and disallow the driver in Kconfig. All files that used to include asm/rtc.h are now changed so they include the headers that were used implicitly through asm/rtc.h. Signed-off-by: Arnd Bergmann Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Signed-off-by: Alexandre Belloni --- arch/m68k/amiga/config.c | 1 - arch/m68k/apollo/config.c | 1 - arch/m68k/bvme6000/config.c | 1 - arch/m68k/hp300/config.c | 2 +- arch/m68k/include/asm/rtc.h | 79 --------------------------------------------- arch/m68k/mac/config.c | 3 +- arch/m68k/mac/misc.c | 1 - arch/m68k/mvme147/config.c | 1 - arch/m68k/mvme16x/config.c | 1 - arch/m68k/q40/config.c | 2 +- arch/m68k/sun3/config.c | 1 - arch/m68k/sun3/intersil.c | 2 +- arch/m68k/sun3x/time.c | 2 +- 13 files changed, 6 insertions(+), 91 deletions(-) delete mode 100644 arch/m68k/include/asm/rtc.h (limited to 'arch/m68k') diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 01693df7f2f6..ec9cc1fdd237 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c index 6e62d66c396e..432bc8bacfc2 100644 --- a/arch/m68k/apollo/config.c +++ b/arch/m68k/apollo/config.c @@ -15,7 +15,6 @@ #include #include #include -#include #include u_long sio01_physaddr; diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c index 478623dbb209..611d4d9ea2bd 100644 --- a/arch/m68k/bvme6000/config.c +++ b/arch/m68k/bvme6000/config.c @@ -34,7 +34,6 @@ #include #include #include -#include #include #include diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c index a9befe65adc4..7cfab158fb61 100644 --- a/arch/m68k/hp300/config.c +++ b/arch/m68k/hp300/config.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -20,7 +21,6 @@ #include #include /* readb() and writeb() */ #include -#include #include "time.h" diff --git a/arch/m68k/include/asm/rtc.h b/arch/m68k/include/asm/rtc.h deleted file mode 100644 index a4d08ea122ee..000000000000 --- a/arch/m68k/include/asm/rtc.h +++ /dev/null @@ -1,79 +0,0 @@ -/* include/asm-m68k/rtc.h - * - * Copyright Richard Zidlicky - * implementation details for genrtc/q40rtc driver - */ -/* permission is hereby granted to copy, modify and redistribute this code - * in terms of the GNU Library General Public License, Version 2 or later, - * at your option. - */ - -#ifndef _ASM_RTC_H -#define _ASM_RTC_H - -#ifdef __KERNEL__ - -#include -#include -#include - -#define RTC_PIE 0x40 /* periodic interrupt enable */ -#define RTC_AIE 0x20 /* alarm interrupt enable */ -#define RTC_UIE 0x10 /* update-finished interrupt enable */ - -/* some dummy definitions */ -#define RTC_BATT_BAD 0x100 /* battery bad */ -#define RTC_SQWE 0x08 /* enable square-wave output */ -#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */ -#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */ -#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */ - -static inline unsigned int get_rtc_time(struct rtc_time *time) -{ - /* - * Only the values that we read from the RTC are set. We leave - * tm_wday, tm_yday and tm_isdst untouched. Even though the - * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated - * by the RTC when initially set to a non-zero value. - */ - if (mach_hwclk) - mach_hwclk(0, time); - return RTC_24H; -} - -static inline int set_rtc_time(struct rtc_time *time) -{ - if (mach_hwclk) - return mach_hwclk(1, time); - return -EINVAL; -} - -static inline unsigned int get_rtc_ss(void) -{ - if (mach_get_ss) - return mach_get_ss(); - else{ - struct rtc_time h; - - get_rtc_time(&h); - return h.tm_sec; - } -} - -static inline int get_rtc_pll(struct rtc_pll_info *pll) -{ - if (mach_get_rtc_pll) - return mach_get_rtc_pll(pll); - else - return -EINVAL; -} -static inline int set_rtc_pll(struct rtc_pll_info *pll) -{ - if (mach_set_rtc_pll) - return mach_set_rtc_pll(pll); - else - return -EINVAL; -} -#endif /* __KERNEL__ */ - -#endif /* _ASM__RTC_H */ diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index 689b47d292ac..2f33a33001e5 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -10,6 +10,7 @@ * Miscellaneous linux stuff */ +#include #include #include #include @@ -25,6 +26,7 @@ #include #include #include +#include #include #include @@ -34,7 +36,6 @@ #include #include #include -#include #include #include diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c index 707b61aea203..0fb54a90eac2 100644 --- a/arch/m68k/mac/misc.c +++ b/arch/m68k/mac/misc.c @@ -18,7 +18,6 @@ #include #include -#include #include #include #include diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c index e6a3b56c6481..c11d38dfad08 100644 --- a/arch/m68k/mvme147/config.c +++ b/arch/m68k/mvme147/config.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c index a53803cc66cd..58e240939d26 100644 --- a/arch/m68k/mvme16x/config.c +++ b/arch/m68k/mvme16x/config.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c index e90fe903613e..fcb7f05b60b6 100644 --- a/arch/m68k/q40/config.c +++ b/arch/m68k/q40/config.c @@ -12,6 +12,7 @@ * for more details. */ +#include #include #include #include @@ -27,7 +28,6 @@ #include #include -#include #include #include #include diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c index 71884bf01d72..3af34fa3a344 100644 --- a/arch/m68k/sun3/config.c +++ b/arch/m68k/sun3/config.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/m68k/sun3/intersil.c b/arch/m68k/sun3/intersil.c index 889829e11f1d..2cd0bcbe6f30 100644 --- a/arch/m68k/sun3/intersil.c +++ b/arch/m68k/sun3/intersil.c @@ -14,8 +14,8 @@ #include #include -#include #include +#include /* bits to set for start/run of the intersil */ diff --git a/arch/m68k/sun3x/time.c b/arch/m68k/sun3x/time.c index c8eb08add6b0..431d3c4306dd 100644 --- a/arch/m68k/sun3x/time.c +++ b/arch/m68k/sun3x/time.c @@ -15,10 +15,10 @@ #include #include +#include #include #include #include -#include #include "time.h" -- cgit v1.2.3