From patchwork Thu Sep 13 23:31:28 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hunter, Jon" X-Patchwork-Id: 1454761 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (unknown [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id C43B8DF24C for ; Thu, 13 Sep 2012 23:46:47 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TCItX-0002gV-1k; Thu, 13 Sep 2012 23:32:27 +0000 Received: from arroyo.ext.ti.com ([192.94.94.40]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TCIsw-0002bo-LF for linux-arm-kernel@lists.infradead.org; Thu, 13 Sep 2012 23:31:53 +0000 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id q8DNVnwu003258; Thu, 13 Sep 2012 18:31:49 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id q8DNVnJY003020; Thu, 13 Sep 2012 18:31:49 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by dfle72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.1.323.3; Thu, 13 Sep 2012 18:31:49 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id q8DNVnn8023536; Thu, 13 Sep 2012 18:31:49 -0500 Received: from localhost (ula0741266.am.dhcp.ti.com [192.157.144.139]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id q8DNVmw08234; Thu, 13 Sep 2012 18:31:48 -0500 (CDT) From: Jon Hunter To: Benoit Cousson , Tony Lindgren , Paul Walmsley , Rob Herring , Grant Likely Subject: [PATCH V2 4/7] ARM: OMAP: Add a timer attribute for timers that can interrupt the DSP Date: Thu, 13 Sep 2012 18:31:28 -0500 Message-ID: <1347579091-3794-5-git-send-email-jon-hunter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1347579091-3794-1-git-send-email-jon-hunter@ti.com> References: <1347579091-3794-1-git-send-email-jon-hunter@ti.com> MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -7.4 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [192.94.94.40 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: device-tree , linux-omap , Jon Hunter , linux-arm X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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 --- arch/arm/mach-omap1/timer.c | 2 +- arch/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 aa81593..cdeb9d3 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 afad69c..efd0004 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c @@ -222,6 +222,11 @@ 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 = { @@ -310,6 +315,7 @@ struct omap_hwmod omap2xxx_timer5_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT5_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; @@ -328,6 +334,7 @@ struct omap_hwmod omap2xxx_timer6_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT6_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; @@ -346,6 +353,7 @@ struct omap_hwmod omap2xxx_timer7_hwmod = { .idlest_idle_bit = OMAP24XX_ST_GPT7_SHIFT, }, }, + .dev_attr = &capability_dsp_dev_attr, .class = &omap2xxx_timer_hwmod_class, }; @@ -364,6 +372,7 @@ 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 c9e3820..88a4cea 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -161,6 +161,16 @@ 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", @@ -244,6 +254,7 @@ 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, }; @@ -261,6 +272,7 @@ 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, }; @@ -278,6 +290,7 @@ 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, }; @@ -295,7 +308,7 @@ 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 242aee4..09683bb 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2902,6 +2902,16 @@ 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 }, @@ -3006,6 +3016,7 @@ static struct omap_hwmod omap44xx_timer5_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, + .dev_attr = &capability_dsp_dev_attr, }; /* timer6 */ @@ -3028,6 +3039,7 @@ static struct omap_hwmod omap44xx_timer6_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, + .dev_attr = &capability_dsp_dev_attr, }; /* timer7 */ @@ -3049,6 +3061,7 @@ static struct omap_hwmod omap44xx_timer7_hwmod = { .modulemode = MODULEMODE_SWCTRL, }, }, + .dev_attr = &capability_dsp_dev_attr, }; /* timer8 */ @@ -3070,7 +3083,7 @@ 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 19e7fa5..85868e9 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;