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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-06 01:18:05 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-06 01:18:05 (GMT) |
commit | 7abec10c623d9e0416dab6919a0ea22e6283516b (patch) | |
tree | 83aa79c369e99c4fc60eea91ebd399b7689b312e /arch/arm/plat-samsung/include/plat/pwm-clock.h | |
parent | 0de9adf284ec20454ecf37ffd98e7e98ba7292d6 (diff) | |
parent | cfaf8fc5b59527281e9ddc2e0e04e1127936e17f (diff) | |
download | linux-fsl-qoriq-7abec10c623d9e0416dab6919a0ea22e6283516b.tar.xz |
Merge branch 'next/cleanup3' of git://git.linaro.org/people/arnd/arm-soc
* 'next/cleanup3' of git://git.linaro.org/people/arnd/arm-soc: (79 commits)
ARM: SAMSUNG: Move fimc plat. device from board files to plat-samsung
ARM: SAMSUNG: Cleanup resources by using macro
ARM: SAMSUNG: Cleanup plat-samsung/devs.c and devs.h
ARM: S5P: To merge devs.c files to one devs.c
ARM: S3C64XX: To merge devs.c files to one devs.c
ARM: S3C24XX: To merge s3c24xx devs.c files to one devs.c
ARM: S5P64X0: Add Power Management support
ARM: S5P: Make the sleep code common for S5P series SoCs
ARM: S5P: Make the common S5P PM code conditionally compile
ARM: SAMSUNG: Move S5P header files to plat-samsung
ARM: SAMSUNG: Move S3C24XX header files to plat-samsung
ARM: SAMSUNG: Moving each SoC support header files
ARM: SAMSUNG: Consolidate plat/pll.h
ARM: SAMSUNG: Consolidate plat/pwm-clock.h
ARM: SAMSUNG: Cleanup mach/clkdev.h
ARM: SAMSUNG: remove sdhci default configuration setup platform helper
ARM: EXYNOS4: Add FIMC device on SMDKV310 board
ARM: EXYNOS4: Add header file protection macros
ARM: EXYNOS4: Add usb ehci device to the SMDKV310
ARM: S3C2443: Add hsspi-clock from pclk and rename S3C2443 hsspi sclk
...
Fix up conflicts in
- arch/arm/mach-exynos4/{Kconfig,clock.c}
ARM_CPU_SUSPEND, various random device tables (gah!)
- drivers/gpio/Makefile
sa1100 gpio added, samsung gpio drivers merged
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/pwm-clock.h')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/pwm-clock.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/pwm-clock.h b/arch/arm/plat-samsung/include/plat/pwm-clock.h new file mode 100644 index 0000000..bf6a60e --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/pwm-clock.h @@ -0,0 +1,81 @@ +/* linux/arch/arm/plat-samsung/include/plat/pwm-clock.h + * + * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * SAMSUNG - pwm clock and timer support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_PLAT_PWM_CLOCK_H +#define __ASM_PLAT_PWM_CLOCK_H __FILE__ + +/** + * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk + * @tcfg: The timer TCFG1 register bits shifted down to 0. + * + * Return true if the given configuration from TCFG1 is a TCLK instead + * any of the TDIV clocks. + */ +static inline int pwm_cfg_src_is_tclk(unsigned long tcfg) +{ + if (soc_is_s3c24xx()) + return tcfg == S3C2410_TCFG1_MUX_TCLK; + else if (soc_is_s3c64xx() || soc_is_s5pc100()) + return tcfg >= S3C64XX_TCFG1_MUX_TCLK; + else if (soc_is_s5p6440() || soc_is_s5p6450()) + return 0; + else + return tcfg == S3C64XX_TCFG1_MUX_TCLK; +} + +/** + * tcfg_to_divisor() - convert tcfg1 setting to a divisor + * @tcfg1: The tcfg1 setting, shifted down. + * + * Get the divisor value for the given tcfg1 setting. We assume the + * caller has already checked to see if this is not a TCLK source. + */ +static inline unsigned long tcfg_to_divisor(unsigned long tcfg1) +{ + if (soc_is_s3c24xx()) + return 1 << (tcfg1 + 1); + else + return 1 << tcfg1; +} + +/** + * pwm_tdiv_has_div1() - does the tdiv setting have a /1 + * + * Return true if we have a /1 in the tdiv setting. + */ +static inline unsigned int pwm_tdiv_has_div1(void) +{ + if (soc_is_s3c24xx()) + return 0; + else + return 1; +} + +/** + * pwm_tdiv_div_bits() - calculate TCFG1 divisor value. + * @div: The divisor to calculate the bit information for. + * + * Turn a divisor into the necessary bit field for TCFG1. + */ +static inline unsigned long pwm_tdiv_div_bits(unsigned int div) +{ + if (soc_is_s3c24xx()) + return ilog2(div) - 1; + else + return ilog2(div); +} +#endif /* __ASM_PLAT_PWM_CLOCK_H */ |