From 7525d293545a8f3ac2ec2951ed1a6703e2b42245 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Sun, 23 Sep 2012 17:28:27 -0600 Subject: [PATCH] ARM: OMAP: Add a timer attribute for timers that can interrupt the DSP Some instances of the DMTIMER peripheral on OMAP devices have the ability to interrupt the on-chip DSP in addition to the ARM CPU. Add a DMTIMER attribute to indicate which timers can interrupt the DSP. By using the omap_dm_timer_request_by_cap() API, driver will now be able to allocate a DMTIMER that can interrupt the DSP based upon this attribute and not require the driver to know which instance has this capability. DMTIMERs that have the ability to interrupt the DSP on OMAP devices are as follows ... - OMAP1 (OMAP5912/16xx/17xx) devices - All 8 DMTIMERs - OMAP2/3/4 devices - DMTIMERs 5-8 Please note that for OMAP3+, timer8 has the ability to interrupt the DSP and generate a PWM output. Signed-off-by: Jon Hunter Signed-off-by: Paul Walmsley --- arch/arm/mach-omap1/timer.c | 2 +- .../arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c | 9 +++++++++ arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 15 ++++++++++++++- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 15 ++++++++++++++- arch/arm/plat-omap/include/plat/dmtimer.h | 1 + 5 files changed, 39 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c index aa81593db1af9..cdeb9d3ef6409 100644 --- a/arch/arm/mach-omap1/timer.c +++ b/arch/arm/mach-omap1/timer.c @@ -141,7 +141,7 @@ static int __init omap1_dm_timer_init(void) pdata->set_timer_src = omap1_dm_timer_set_src; pdata->timer_capability = OMAP_TIMER_ALWON | - OMAP_TIMER_NEEDS_RESET; + OMAP_TIMER_NEEDS_RESET | OMAP_TIMER_HAS_DSP_IRQ; ret = platform_device_add_data(pdev, pdata, sizeof(*pdata)); if (ret) { diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c index 32c778bf8f084..de39017d2e28e 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c @@ -240,6 +240,11 @@ static struct omap_timer_capability_dev_attr capability_pwm_dev_attr = { .timer_capability = OMAP_TIMER_HAS_PWM, }; +/* timers with DSP interrupt dev attribute */ +static struct omap_timer_capability_dev_attr capability_dsp_dev_attr = { + .timer_capability = OMAP_TIMER_HAS_DSP_IRQ, +}; + /* timer1 */ struct omap_hwmod omap2xxx_timer1_hwmod = { @@ -328,6 +333,7 @@ struct omap_hwmod omap2xxx_timer5_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT5_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; @@ -346,6 +352,7 @@ struct omap_hwmod omap2xxx_timer6_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT6_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; @@ -364,6 +371,7 @@ struct omap_hwmod omap2xxx_timer7_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT7_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; @@ -382,6 +390,7 @@ struct omap_hwmod omap2xxx_timer8_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT8_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index da6eca0ff79bb..5ef9007ace505 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -171,6 +171,16 @@ static struct omap_timer_capability_dev_attr capability_pwm_dev_attr = { .timer_capability = OMAP_TIMER_HAS_PWM, }; +/* timers with DSP interrupt dev attribute */ +static struct omap_timer_capability_dev_attr capability_dsp_dev_attr = { + .timer_capability = OMAP_TIMER_HAS_DSP_IRQ, +}; + +/* pwm timers with DSP interrupt dev attribute */ +static struct omap_timer_capability_dev_attr capability_dsp_pwm_dev_attr = { + .timer_capability = OMAP_TIMER_HAS_DSP_IRQ | OMAP_TIMER_HAS_PWM, +}; + /* timer1 */ static struct omap_hwmod omap3xxx_timer1_hwmod = { .name = "timer1", @@ -254,6 +264,7 @@ static struct omap_hwmod omap3xxx_timer5_hwmod = { .idlest_idle_bit = OMAP3430_ST_GPT5_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap3xxx_timer_hwmod_class, }; @@ -271,6 +282,7 @@ static struct omap_hwmod omap3xxx_timer6_hwmod = { .idlest_idle_bit = OMAP3430_ST_GPT6_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap3xxx_timer_hwmod_class, }; @@ -288,6 +300,7 @@ static struct omap_hwmod omap3xxx_timer7_hwmod = { .idlest_idle_bit = OMAP3430_ST_GPT7_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap3xxx_timer_hwmod_class, }; @@ -305,7 +318,7 @@ static struct omap_hwmod omap3xxx_timer8_hwmod = { .idlest_idle_bit = OMAP3430_ST_GPT8_SHIFT, }, }, - .dev_attr = &capability_pwm_dev_attr, + .dev_attr = &capability_dsp_pwm_dev_attr, .class = &omap3xxx_timer_hwmod_class, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 46fd80c29a02f..17ab2dbc89314 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -3097,6 +3097,16 @@ static struct omap_timer_capability_dev_attr capability_pwm_dev_attr = { .timer_capability = OMAP_TIMER_HAS_PWM, }; +/* timers with DSP interrupt dev attribute */ +static struct omap_timer_capability_dev_attr capability_dsp_dev_attr = { + .timer_capability = OMAP_TIMER_HAS_DSP_IRQ, +}; + +/* pwm timers with DSP interrupt dev attribute */ +static struct omap_timer_capability_dev_attr capability_dsp_pwm_dev_attr = { + .timer_capability = OMAP_TIMER_HAS_DSP_IRQ | OMAP_TIMER_HAS_PWM, +}; + /* timer1 */ static struct omap_hwmod_irq_info omap44xx_timer1_irqs[] = { { .irq = 37 + OMAP44XX_IRQ_GIC_START }, @@ -3201,6 +3211,7 @@ static struct omap_hwmod omap44xx_timer5_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, + .dev_attr = &capability_dsp_dev_attr, }; /* timer6 */ @@ -3223,6 +3234,7 @@ static struct omap_hwmod omap44xx_timer6_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, + .dev_attr = &capability_dsp_dev_attr, }; /* timer7 */ @@ -3244,6 +3256,7 @@ static struct omap_hwmod omap44xx_timer7_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, + .dev_attr = &capability_dsp_dev_attr, }; /* timer8 */ @@ -3265,7 +3278,7 @@ static struct omap_hwmod omap44xx_timer8_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, - .dev_attr = &capability_pwm_dev_attr, + .dev_attr = &capability_dsp_pwm_dev_attr, }; /* timer9 */ diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index 19e7fa577bd0a..85868e98c11cd 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -60,6 +60,7 @@ #define OMAP_TIMER_ALWON 0x40000000 #define OMAP_TIMER_HAS_PWM 0x20000000 #define OMAP_TIMER_NEEDS_RESET 0x10000000 +#define OMAP_TIMER_HAS_DSP_IRQ 0x08000000 struct omap_timer_capability_dev_attr { u32 timer_capability; -- 2.39.5