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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-06 01:18:05 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-06 01:18:05 (GMT)
commit7abec10c623d9e0416dab6919a0ea22e6283516b (patch)
tree83aa79c369e99c4fc60eea91ebd399b7689b312e /arch/arm/plat-samsung/include/plat/pwm-clock.h
parent0de9adf284ec20454ecf37ffd98e7e98ba7292d6 (diff)
parentcfaf8fc5b59527281e9ddc2e0e04e1127936e17f (diff)
downloadlinux-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.h81
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 */