From patchwork Fri Aug 5 10:02:33 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh KUMAR X-Patchwork-Id: 1037852 Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p75A5LdU026116 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 5 Aug 2011 10:05:43 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QpHH6-0007Ld-55; Fri, 05 Aug 2011 10:05:04 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QpHH5-0002yW-9j; Fri, 05 Aug 2011 10:05:03 +0000 Received: from eu1sys200aog104.obsmtp.com ([207.126.144.117]) by canuck.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1QpHFw-0002ij-98 for linux-arm-kernel@lists.infradead.org; Fri, 05 Aug 2011 10:04:01 +0000 Received: from beta.dmz-ap.st.com ([138.198.100.35]) (using TLSv1) by eu1sys200aob104.postini.com ([207.126.147.11]) with SMTP ID DSNKTju/+Pd7Taot+YVfFDa/MrSXdEoOGKhz@postini.com; Fri, 05 Aug 2011 10:03:51 UTC Received: from zeta.dmz-ap.st.com (ns6.st.com [138.198.234.13]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 27802147; Fri, 5 Aug 2011 10:03:10 +0000 (GMT) Received: from Webmail-ap.st.com (eapex1hubcas1.st.com [10.80.176.8]) by zeta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 08894F75; Fri, 5 Aug 2011 10:03:10 +0000 (GMT) Received: from localhost (10.199.88.156) by Webmail-ap.st.com (10.80.176.7) with Microsoft SMTP Server (TLS) id 8.2.234.1; Fri, 5 Aug 2011 18:03:09 +0800 From: Viresh Kumar To: , , Subject: [PATCH V3 08/20] dmaengine/amba-pl08x: support runtime PM Date: Fri, 5 Aug 2011 15:32:33 +0530 Message-ID: <7280d025e19b6b9eba91b5988c6c1f498c6ffbda.1312538034.git.viresh.kumar@st.com> X-Mailer: git-send-email 1.7.2.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110805_060352_696936_79B6878B X-CRM114-Status: GOOD ( 16.82 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [207.126.144.117 listed in list.dnswl.org] Cc: pratyush.anand@st.com, rajeev-dlh.kumar@st.com, linux@arm.linux.org.uk, bhupesh.sharma@st.com, armando.visconti@st.com, linux-kernel@vger.kernel.org, vipin.kumar@st.com, shiraz.hashim@st.com, amit.virdi@st.com, vipulkumar.samar@st.com, viresh.linux@gmail.com, deepak.sikri@st.com, alim.akhtar@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 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 X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Fri, 05 Aug 2011 10:05:43 +0000 (UTC) Insert notifiers for the runtime PM API. With this the runtime PM layer kicks in to action where used. Signed-off-by: Viresh Kumar --- drivers/dma/amba-pl08x.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index ead88c9..5dd97f4 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -84,6 +84,7 @@ #include #include #include +#include #include #include #include @@ -405,6 +406,7 @@ pl08x_get_phy_channel(struct pl08x_driver_data *pl08x, return NULL; } + pm_runtime_get_sync(&pl08x->adev->dev); return ch; } @@ -418,6 +420,8 @@ static inline void pl08x_put_phy_channel(struct pl08x_driver_data *pl08x, /* Stop the channel and clear its interrupts */ pl08x_terminate_phy_chan(pl08x, ch); + pm_runtime_put(&pl08x->adev->dev); + /* Mark it as free */ ch->serving = NULL; spin_unlock_irqrestore(&ch->lock, flags); @@ -1855,6 +1859,9 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) goto out_no_pl08x; } + pm_runtime_set_active(&adev->dev); + pm_runtime_enable(&adev->dev); + /* Initialize memcpy engine */ dma_cap_set(DMA_MEMCPY, pl08x->memcpy.cap_mask); pl08x->memcpy.dev = &adev->dev; @@ -1992,6 +1999,8 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) dev_info(&pl08x->adev->dev, "DMA: PL%03x rev%u at 0x%08llx irq %d\n", amba_part(adev), amba_rev(adev), (unsigned long long)adev->res.start, adev->irq[0]); + + pm_runtime_put(&adev->dev); return 0; out_no_slave_reg: @@ -2010,6 +2019,9 @@ out_no_ioremap: dma_pool_destroy(pl08x->pool); out_no_lli_pool: out_no_platdata: + pm_runtime_put(&adev->dev); + pm_runtime_disable(&adev->dev); + kfree(pl08x); out_no_pl08x: amba_release_regions(adev);