On 03/14/2014 07:13 PM, Suman Anna wrote: > Hi Joel, > > On 03/13/2014 03:35 PM, Joel Fernandes wrote: >> We introduce functions to initialize clocksource and clockevent, use >> CLOCKSOURCE_OF_DECLARE to declare the clocksource, and handle the >> clocksource >> selection on a per-SoC basis (Currently only AM335x is supported). >> Powering up >> of the timer will be done with the help of the mach-omap layer function >> that's >> introduced earlier in the series. >> >> We make a local copy of dmtimer API for use by clocksource, the original >> dmtimer API in plat-omap is kept as-is till the migration of all SoCs is >> completed after which it can't be deleted. >> >> Signed-off-by: Joel Fernandes <joelf@xxxxxx> >> --- >> drivers/clocksource/Makefile | 1 + >> drivers/clocksource/omap-timer.c | 1157 >> ++++++++++++++++++++++++++++++++++++++ >> drivers/clocksource/omap-timer.h | 422 ++++++++++++++ >> 3 files changed, 1580 insertions(+) >> create mode 100644 drivers/clocksource/omap-timer.c >> create mode 100644 drivers/clocksource/omap-timer.h >> >> diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile >> index c7ca50a..2ffe698 100644 >> --- a/drivers/clocksource/Makefile >> +++ b/drivers/clocksource/Makefile >> @@ -37,3 +37,4 @@ obj-$(CONFIG_ARM_ARCH_TIMER) += arm_arch_timer.o >> obj-$(CONFIG_ARM_GLOBAL_TIMER) += arm_global_timer.o >> obj-$(CONFIG_CLKSRC_METAG_GENERIC) += metag_generic.o >> obj-$(CONFIG_ARCH_HAS_TICK_BROADCAST) += dummy_timer.o >> +obj-y += omap-timer.o >> diff --git a/drivers/clocksource/omap-timer.c >> b/drivers/clocksource/omap-timer.c >> new file mode 100644 >> index 0000000..91593d8 >> --- /dev/null >> +++ b/drivers/clocksource/omap-timer.c >> @@ -0,0 +1,1157 @@ >> +/* >> + * drivers/clocksource/omap-timer.c >> + * >> + * OMAP Dual-Mode Timers >> + * >> + * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ >> + * Joel Fernandes <joelf@xxxxxx> >> + * Tarun Kanti DebBarma <tarun.kanti@xxxxxx> >> + * Thara Gopinath <thara@xxxxxx> >> + * >> + * dmtimer adaptation to platform_driver. >> + * >> + * Copyright (C) 2005 Nokia Corporation >> + * OMAP2 support by Juha Yrjola >> + * API improvements and OMAP2 clock framework support by Timo Teras >> + * >> + * Copyright (C) 2014 Texas Instruments >> + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@xxxxxx> >> + * >> + * This program 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; either version 2 of the License, or (at your >> + * option) any later version. >> + * >> + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED >> + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF >> + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN >> + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, >> + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT >> + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT >> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF >> + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. >> + * >> + * You should have received a copy of the GNU General Public License along >> + * with this program; if not, write to the Free Software Foundation, Inc., >> + * 675 Mass Ave, Cambridge, MA 02139, USA. >> + */ >> +#include <linux/init.h> >> +#include <linux/time.h> >> +#include <linux/interrupt.h> >> +#include <linux/err.h> >> +#include <linux/clk.h> >> +#include <linux/delay.h> >> +#include <linux/irq.h> >> +#include <linux/clocksource.h> >> +#include <linux/clockchips.h> >> +#include <linux/slab.h> >> +#include <linux/sched_clock.h> >> + >> +#include <linux/clk.h> >> +#include <linux/module.h> >> +#include <linux/io.h> >> +#include <linux/device.h> >> +#include <linux/err.h> >> +#include <linux/pm_runtime.h> >> +#include <linux/of.h> >> +#include <linux/of_irq.h> >> +#include <linux/of_address.h> >> + >> +#include <linux/of_device.h> >> +#include <linux/platform_device.h> >> +#include <linux/platform_data/dmtimer-omap.h> >> +#include "omap-timer.h" >> +/* >> + * TODO: OMAP1 support removed due to need for header mach/hardware.h >> + * OMAP2 support may be broken due to lack of cpu_is stuff, see >> omap_dm_timer_get_errata >> + */ >> + >> +/** >> + * omap_dm_timer_get_errata - get errata flags for a timer >> + * >> + * Get the timer errata flags that are specific to the OMAP device being >> used. >> + */ >> +static u32 __init omap_dm_timer_get_errata(void) >> +{ >> + /* ifdef'd out due to lack of availaibility of soc.h */ >> +#if 0 >> + if (cpu_is_omap24xx()) >> + return 0; > > You should be able to fix this using some compatible checks. Thanks. I'll use of_device_is_compatible to check for that. -Joel -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
