/* * Copyright (C) 2014-2017 Tobias Klauser * Copyright (C) 2009-2012 Daniel Borkmann * * This file is part of llmnrd. * * llmnrd is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, version 2 of the License. * * llmnrd is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with llmnrd. If not, see . */ #ifndef UTIL_H #define UTIL_H #include #include #include #include #include "compiler.h" #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) /* * min()/max() macros with strict type-checking. * Taken from linux/kernel.h */ #undef min #define min(x, y) ({ \ typeof(x) _min1 = (x); \ typeof(y) _min2 = (y); \ (void) (&_min1 == &_min2); \ _min1 < _min2 ? _min1 : _min2; }) #undef max #define max(x, y) ({ \ typeof(x) _max1 = (x); \ typeof(y) _max2 = (y); \ (void) (&_max1 == &_max2); \ _max1 > _max2 ? _max1 : _max2; }) static inline void panic(const char *fmt, ...) __check_format_printf(1, 2); static inline void __noreturn panic(const char *fmt, ...) { va_list vl; va_start(vl, fmt); vfprintf(stderr, fmt, vl); va_end(vl); exit(EXIT_FAILURE); } void *xmalloc(size_t size) __warn_unused_result; void *xzalloc(size_t size) __warn_unused_result; void *xrealloc(void *ptr, size_t size) __warn_unused_result; char *xstrdup(const char *s) __warn_unused_result; static inline bool xstreq(const char *str1, const char *str2) { size_t n = strlen(str1); if (n != strlen(str2)) return false; if (strncmp(str1, str2, n) != 0) return false; return true; } #endif /* UTIL_H */ evicetree?id=3984903a2e3906d3def220e688040ce93368200a'>commitdiff
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authorLokesh Vutla <lokeshvutla@ti.com>2016-10-27 11:27:25 +0530
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-11-04 23:11:37 +0100
commit3984903a2e3906d3def220e688040ce93368200a (patch)
tree0dfd07a0079bf488b61fea891f801554bbb884a1 /Documentation/devicetree
parent368e21aebe9535c1643b272aaa9819298a6bc3e5 (diff)
rtc: omap: Fix selecting external osc
RTC can be clocked from an external 32KHz oscillator, or from the Peripheral PLL. The RTC has an internal oscillator buffer to support direct operation with a crystal. ---------------------------------------- | Device --------- | | | | | | | RTCSS | | | --------- | | | OSC |<------| RTC | | | | |------>| OSC |--- | | | | -------- | | | | | ----|clk | | | -------- | | | | | | PRCM |--- | | | | -------- -------- | ---------------------------------------- The RTC functional clock is sourced by default from the clock derived from the Peripheral PLL. In order to select source as external osc clk the following changes needs to be done: - Enable the RTC OSC (RTC_OSC_REG[4]OSC32K_GZ = 0) - Enable the clock mux(RTC_OSC_REG[6]K32CLK_EN = 1) - Select the external clock source (RTC_OSC_REG[3]32KCLK_SEL = 1) Fixes: 399cf0f63f6f2 ("rtc: omap: Add external clock enabling support") Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree')