[PATCH 1/8] ARM: OMAP: Move public portion of dmtimer.h to include/linux/omap-timer.h
Joel Fernandes
joelf at ti.com
Thu Nov 21 20:56:47 EST 2013
Multiplatform support has made arch/arm/plat-omap/include/plat/ inaccessible to
drivers outside the plat-omap directory [1]. Due to this the following drivers
are disabled with !CONFIG_ARCH_MULTIPLATFORM:
CONFIG_IR_RX51 (drivers/media/rc/ir-rx51.c)
CONFIG_TIDSPBRIDGE (drivers/staging/tidspbridge/core/dsp-clock.c)
We move the portion of the dmtimer "API" that should be accessible to the
drivers, into include/linux/omap-timer.h
Build tested changes with IR_RX51.
[1] http://marc.info/?l=linux-omap&m=138421692332108&w=2
Signed-off-by: Joel Fernandes <joelf at ti.com>
---
arch/arm/plat-omap/include/plat/dmtimer.h | 121 +---------------------
include/linux/omap-timer.h | 167 ++++++++++++++++++++++++++++++
2 files changed, 168 insertions(+), 120 deletions(-)
create mode 100644 include/linux/omap-timer.h
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index fb92abb..7d6cff8 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -35,130 +35,11 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/platform_device.h>
+#include <linux/omap-timer.h>
#ifndef __ASM_ARCH_DMTIMER_H
#define __ASM_ARCH_DMTIMER_H
-/* clock sources */
-#define OMAP_TIMER_SRC_SYS_CLK 0x00
-#define OMAP_TIMER_SRC_32_KHZ 0x01
-#define OMAP_TIMER_SRC_EXT_CLK 0x02
-
-/* timer interrupt enable bits */
-#define OMAP_TIMER_INT_CAPTURE (1 << 2)
-#define OMAP_TIMER_INT_OVERFLOW (1 << 1)
-#define OMAP_TIMER_INT_MATCH (1 << 0)
-
-/* trigger types */
-#define OMAP_TIMER_TRIGGER_NONE 0x00
-#define OMAP_TIMER_TRIGGER_OVERFLOW 0x01
-#define OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02
-
-/* posted mode types */
-#define OMAP_TIMER_NONPOSTED 0x00
-#define OMAP_TIMER_POSTED 0x01
-
-/* timer capabilities used in hwmod database */
-#define OMAP_TIMER_SECURE 0x80000000
-#define OMAP_TIMER_ALWON 0x40000000
-#define OMAP_TIMER_HAS_PWM 0x20000000
-#define OMAP_TIMER_NEEDS_RESET 0x10000000
-#define OMAP_TIMER_HAS_DSP_IRQ 0x08000000
-
-/*
- * timer errata flags
- *
- * Errata i103/i767 impacts all OMAP3/4/5 devices including AM33xx. This
- * errata prevents us from using posted mode on these devices, unless the
- * timer counter register is never read. For more details please refer to
- * the OMAP3/4/5 errata documents.
- */
-#define OMAP_TIMER_ERRATA_I103_I767 0x80000000
-
-struct omap_timer_capability_dev_attr {
- u32 timer_capability;
-};
-
-struct timer_regs {
- u32 tidr;
- u32 tier;
- u32 twer;
- u32 tclr;
- u32 tcrr;
- u32 tldr;
- u32 ttrg;
- u32 twps;
- u32 tmar;
- u32 tcar1;
- u32 tsicr;
- u32 tcar2;
- u32 tpir;
- u32 tnir;
- u32 tcvr;
- u32 tocr;
- u32 towr;
-};
-
-struct omap_dm_timer {
- int id;
- int irq;
- struct clk *fclk;
-
- void __iomem *io_base;
- void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */
- void __iomem *irq_ena; /* irq enable */
- void __iomem *irq_dis; /* irq disable, only on v2 ip */
- void __iomem *pend; /* write pending */
- void __iomem *func_base; /* function register base */
-
- unsigned long rate;
- unsigned reserved:1;
- unsigned posted:1;
- struct timer_regs context;
- int (*get_context_loss_count)(struct device *);
- int ctx_loss_count;
- int revision;
- u32 capability;
- u32 errata;
- struct platform_device *pdev;
- struct list_head node;
-};
-
-int omap_dm_timer_reserve_systimer(int id);
-struct omap_dm_timer *omap_dm_timer_request(void);
-struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
-struct omap_dm_timer *omap_dm_timer_request_by_cap(u32 cap);
-struct omap_dm_timer *omap_dm_timer_request_by_node(struct device_node *np);
-int omap_dm_timer_free(struct omap_dm_timer *timer);
-void omap_dm_timer_enable(struct omap_dm_timer *timer);
-void omap_dm_timer_disable(struct omap_dm_timer *timer);
-
-int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
-
-u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
-struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer);
-
-int omap_dm_timer_trigger(struct omap_dm_timer *timer);
-int omap_dm_timer_start(struct omap_dm_timer *timer);
-int omap_dm_timer_stop(struct omap_dm_timer *timer);
-
-int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source);
-int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload, unsigned int value);
-int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload, unsigned int value);
-int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, unsigned int match);
-int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, int toggle, int trigger);
-int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler);
-
-int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, unsigned int value);
-int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask);
-
-unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer);
-int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value);
-unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer);
-int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value);
-
-int omap_dm_timers_active(void);
-
/*
* Do not use the defines below, they are not needed. They should be only
* used by dmtimer.c and sys_timer related code.
diff --git a/include/linux/omap-timer.h b/include/linux/omap-timer.h
new file mode 100644
index 0000000..e21ee18
--- /dev/null
+++ b/include/linux/omap-timer.h
@@ -0,0 +1,167 @@
+/*
+ * include/misc/dmtimer.h
+ *
+ * OMAP Dual-Mode Timers public header
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Tarun Kanti DebBarma <tarun.kanti at ti.com>
+ * Thara Gopinath <thara at ti.com>
+ *
+ * Platform device conversion and hwmod support.
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Author: Lauri Leukkunen <lauri.leukkunen at nokia.com>
+ * PWM and clock framwork support by Timo Teras.
+ *
+ * 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/io.h>
+#include <linux/platform_device.h>
+
+#ifndef __MISC_DMTIMER_H
+#define __MISC_DMTIMER_H
+
+/* clock sources */
+#define OMAP_TIMER_SRC_SYS_CLK 0x00
+#define OMAP_TIMER_SRC_32_KHZ 0x01
+#define OMAP_TIMER_SRC_EXT_CLK 0x02
+
+/* timer interrupt enable bits */
+#define OMAP_TIMER_INT_CAPTURE (1 << 2)
+#define OMAP_TIMER_INT_OVERFLOW (1 << 1)
+#define OMAP_TIMER_INT_MATCH (1 << 0)
+
+/* trigger types */
+#define OMAP_TIMER_TRIGGER_NONE 0x00
+#define OMAP_TIMER_TRIGGER_OVERFLOW 0x01
+#define OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02
+
+/* posted mode types */
+#define OMAP_TIMER_NONPOSTED 0x00
+#define OMAP_TIMER_POSTED 0x01
+
+/* timer capabilities used in hwmod database */
+#define OMAP_TIMER_SECURE 0x80000000
+#define OMAP_TIMER_ALWON 0x40000000
+#define OMAP_TIMER_HAS_PWM 0x20000000
+#define OMAP_TIMER_NEEDS_RESET 0x10000000
+#define OMAP_TIMER_HAS_DSP_IRQ 0x08000000
+
+/*
+ * timer errata flags
+ *
+ * Errata i103/i767 impacts all OMAP3/4/5 devices including AM33xx. This
+ * errata prevents us from using posted mode on these devices, unless the
+ * timer counter register is never read. For more details please refer to
+ * the OMAP3/4/5 errata documents.
+ */
+#define OMAP_TIMER_ERRATA_I103_I767 0x80000000
+
+struct omap_timer_capability_dev_attr {
+ u32 timer_capability;
+};
+
+struct timer_regs {
+ u32 tidr;
+ u32 tier;
+ u32 twer;
+ u32 tclr;
+ u32 tcrr;
+ u32 tldr;
+ u32 ttrg;
+ u32 twps;
+ u32 tmar;
+ u32 tcar1;
+ u32 tsicr;
+ u32 tcar2;
+ u32 tpir;
+ u32 tnir;
+ u32 tcvr;
+ u32 tocr;
+ u32 towr;
+};
+
+struct omap_dm_timer {
+ int id;
+ int irq;
+ struct clk *fclk;
+
+ void __iomem *io_base;
+ void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */
+ void __iomem *irq_ena; /* irq enable */
+ void __iomem *irq_dis; /* irq disable, only on v2 ip */
+ void __iomem *pend; /* write pending */
+ void __iomem *func_base; /* function register base */
+
+ unsigned long rate;
+ unsigned reserved:1;
+ unsigned posted:1;
+ struct timer_regs context;
+ int (*get_context_loss_count)(struct device *);
+ int ctx_loss_count;
+ int revision;
+ u32 capability;
+ u32 errata;
+ struct platform_device *pdev;
+ struct list_head node;
+};
+
+int omap_dm_timer_reserve_systimer(int id);
+struct omap_dm_timer *omap_dm_timer_request(void);
+struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
+struct omap_dm_timer *omap_dm_timer_request_by_cap(u32 cap);
+struct omap_dm_timer *omap_dm_timer_request_by_node(struct device_node *np);
+int omap_dm_timer_free(struct omap_dm_timer *timer);
+void omap_dm_timer_enable(struct omap_dm_timer *timer);
+void omap_dm_timer_disable(struct omap_dm_timer *timer);
+
+int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
+
+u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
+struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer);
+
+int omap_dm_timer_trigger(struct omap_dm_timer *timer);
+int omap_dm_timer_start(struct omap_dm_timer *timer);
+int omap_dm_timer_stop(struct omap_dm_timer *timer);
+
+int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source);
+int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,
+ unsigned int value);
+int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,
+ unsigned int value);
+int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,
+ unsigned int match);
+int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, int toggle,
+ int trigger);
+int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler);
+
+int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
+ unsigned int value);
+int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask);
+
+unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer);
+int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value);
+unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer);
+int omap_dm_timer_write_counter(struct omap_dm_timer *timer,
+ unsigned int value);
+
+int omap_dm_timers_active(void);
+
+#endif
--
1.8.1.2
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