From patchwork Fri May 31 22:15:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108599 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLS5bJbz9s4V for ; Sat, 1 Jun 2019 08:16:16 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLS3yxvzDqcj for ; Sat, 1 Jun 2019 08:16:16 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLG1lvJzDqZF for ; Sat, 1 Jun 2019 08:16:06 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:15:56 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:15:56 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 01/10] media: aspeed: fix a kernel warning on clk control Date: Fri, 31 May 2019 15:15:39 -0700 Message-Id: <20190531221548.14757-2-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" Video engine clock control can be double disabled and eventually it causes a kernel warning with stack dump printing out like below: [ 515.540498] ------------[ cut here ]------------ [ 515.545174] WARNING: CPU: 0 PID: 1310 at drivers/clk/clk.c:684 clk_core_unprepare+0x13c/0x170 [ 515.553806] vclk-gate already unprepared [ 515.557841] CPU: 0 PID: 1310 Comm: obmc-ikvm Tainted: G W 5.0.6-df66fbc97853fbba90a0bfa44de32f3d5f7602b4 #1 [ 515.568973] Hardware name: Generic DT based system [ 515.573777] Backtrace: [ 515.576272] [<80107cdc>] (dump_backtrace) from [<80107f10>] (show_stack+0x20/0x24) [ 515.583930] r7:803a5614 r6:00000009 r5:00000000 r4:9d88fe1c [ 515.589712] [<80107ef0>] (show_stack) from [<80690184>] (dump_stack+0x20/0x28) [ 515.597053] [<80690164>] (dump_stack) from [<80116044>] (__warn.part.3+0xb4/0xdc) [ 515.604557] [<80115f90>] (__warn.part.3) from [<801160d8>] (warn_slowpath_fmt+0x6c/0x90) [ 515.612734] r6:000002ac r5:8080befc r4:80a07008 [ 515.617463] [<80116070>] (warn_slowpath_fmt) from [<803a5614>] (clk_core_unprepare+0x13c/0x170) [ 515.626167] r3:8080cdf4 r2:8080bfc0 [ 515.629834] r7:98d682a8 r6:9d8a9200 r5:9e5151a0 r4:97abd620 [ 515.635530] [<803a54d8>] (clk_core_unprepare) from [<803a76a4>] (clk_unprepare+0x34/0x3c) [ 515.643812] r5:9e5151a0 r4:97abd620 [ 515.647529] [<803a7670>] (clk_unprepare) from [<804f36ec>] (aspeed_video_off+0x38/0x50) [ 515.655539] r5:9e5151a0 r4:9e504000 [ 515.659242] [<804f36b4>] (aspeed_video_off) from [<804f4358>] (aspeed_video_release+0x90/0x114) [ 515.668036] r5:9e5044b0 r4:9e504000 [ 515.671643] [<804f42c8>] (aspeed_video_release) from [<804d302c>] (v4l2_release+0xd4/0xe8) [ 515.679999] r7:98d682a8 r6:9d087810 r5:9d8a9200 r4:9e504318 [ 515.685695] [<804d2f58>] (v4l2_release) from [<80236454>] (__fput+0x98/0x1c4) [ 515.692914] r5:9e51b608 r4:9d8a9200 [ 515.696597] [<802363bc>] (__fput) from [<802365e8>] (____fput+0x18/0x1c) [ 515.703315] r9:80a0700c r8:801011e4 r7:00000000 r6:80a64b9c r5:9d8e35a0 r4:9d8e38dc [ 515.711167] [<802365d0>] (____fput) from [<80131ca4>] (task_work_run+0x7c/0xa0) [ 515.718596] [<80131c28>] (task_work_run) from [<80106884>] (do_work_pending+0x4a8/0x578) [ 515.726777] r7:801011e4 r6:80a07008 r5:9d88ffb0 r4:ffffe000 [ 515.732466] [<801063dc>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20) [ 515.740727] Exception stack(0x9d88ffb0 to 0x9d88fff8) [ 515.745840] ffa0: 00000000 76f18094 00000000 00000000 [ 515.754122] ffc0: 00000007 00176778 7eda4c20 00000006 00000000 00000000 48e20fa4 00000000 [ 515.762386] ffe0: 00000002 7eda4b08 00000000 48f91efc 80000010 00000007 [ 515.769097] r10:00000000 r9:9d88e000 r8:801011e4 r7:00000006 r6:7eda4c20 r5:00176778 [ 515.777006] r4:00000007 [ 515.779558] ---[ end trace 12c04aadef8afbbb ]--- [ 515.784176] ------------[ cut here ]------------ [ 515.788817] WARNING: CPU: 0 PID: 1310 at drivers/clk/clk.c:825 clk_core_disable+0x18c/0x204 [ 515.797161] eclk-gate already disabled [ 515.800916] CPU: 0 PID: 1310 Comm: obmc-ikvm Tainted: G W 5.0.6-df66fbc97853fbba90a0bfa44de32f3d5f7602b4 #1 [ 515.811945] Hardware name: Generic DT based system [ 515.816730] Backtrace: [ 515.819210] [<80107cdc>] (dump_backtrace) from [<80107f10>] (show_stack+0x20/0x24) [ 515.826782] r7:803a5900 r6:00000009 r5:00000000 r4:9d88fe04 [ 515.832454] [<80107ef0>] (show_stack) from [<80690184>] (dump_stack+0x20/0x28) [ 515.839687] [<80690164>] (dump_stack) from [<80116044>] (__warn.part.3+0xb4/0xdc) [ 515.847170] [<80115f90>] (__warn.part.3) from [<801160d8>] (warn_slowpath_fmt+0x6c/0x90) [ 515.855247] r6:00000339 r5:8080befc r4:80a07008 [ 515.859868] [<80116070>] (warn_slowpath_fmt) from [<803a5900>] (clk_core_disable+0x18c/0x204) [ 515.868385] r3:8080cdd0 r2:8080c00c [ 515.871957] r7:98d682a8 r6:9d8a9200 r5:97abd560 r4:97abd560 [ 515.877615] [<803a5774>] (clk_core_disable) from [<803a59a0>] (clk_core_disable_lock+0x28/0x34) [ 515.886301] r7:98d682a8 r6:9d8a9200 r5:97abd560 r4:a0000013 [ 515.891960] [<803a5978>] (clk_core_disable_lock) from [<803a7714>] (clk_disable+0x2c/0x30) [ 515.900216] r5:9e5151a0 r4:9e515f60 [ 515.903816] [<803a76e8>] (clk_disable) from [<804f36f8>] (aspeed_video_off+0x44/0x50) [ 515.911656] [<804f36b4>] (aspeed_video_off) from [<804f4358>] (aspeed_video_release+0x90/0x114) [ 515.920341] r5:9e5044b0 r4:9e504000 [ 515.923921] [<804f42c8>] (aspeed_video_release) from [<804d302c>] (v4l2_release+0xd4/0xe8) [ 515.932184] r7:98d682a8 r6:9d087810 r5:9d8a9200 r4:9e504318 [ 515.937851] [<804d2f58>] (v4l2_release) from [<80236454>] (__fput+0x98/0x1c4) [ 515.944980] r5:9e51b608 r4:9d8a9200 [ 515.948559] [<802363bc>] (__fput) from [<802365e8>] (____fput+0x18/0x1c) [ 515.955257] r9:80a0700c r8:801011e4 r7:00000000 r6:80a64b9c r5:9d8e35a0 r4:9d8e38dc [ 515.963008] [<802365d0>] (____fput) from [<80131ca4>] (task_work_run+0x7c/0xa0) [ 515.970333] [<80131c28>] (task_work_run) from [<80106884>] (do_work_pending+0x4a8/0x578) [ 515.978421] r7:801011e4 r6:80a07008 r5:9d88ffb0 r4:ffffe000 [ 515.984086] [<801063dc>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20) [ 515.992247] Exception stack(0x9d88ffb0 to 0x9d88fff8) [ 515.997296] ffa0: 00000000 76f18094 00000000 00000000 [ 516.005473] ffc0: 00000007 00176778 7eda4c20 00000006 00000000 00000000 48e20fa4 00000000 [ 516.013642] ffe0: 00000002 7eda4b08 00000000 48f91efc 80000010 00000007 [ 516.020257] r10:00000000 r9:9d88e000 r8:801011e4 r7:00000006 r6:7eda4c20 r5:00176778 [ 516.028072] r4:00000007 [ 516.030606] ---[ end trace 12c04aadef8afbbc ]--- To prevent this issue, this commit adds clock status checking logic into the Aspeed video engine driver. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: Removed spinlock handling code. Actual fix for removing the kernel warning is blocking double disabling of video clocks. Refactoring of protection mechanism of this driver will be submitted using a seprate patch series. drivers/media/platform/aspeed-video.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 8144fe36ad48..562d7c0adc78 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -187,6 +187,7 @@ enum { VIDEO_STREAMING, VIDEO_FRAME_INPRG, VIDEO_STOPPED, + VIDEO_CLOCKS_ON, }; struct aspeed_video_addr { @@ -483,19 +484,29 @@ static void aspeed_video_enable_mode_detect(struct aspeed_video *video) static void aspeed_video_off(struct aspeed_video *video) { + if (!test_bit(VIDEO_CLOCKS_ON, &video->flags)) + return; + /* Disable interrupts */ aspeed_video_write(video, VE_INTERRUPT_CTRL, 0); /* Turn off the relevant clocks */ clk_disable_unprepare(video->vclk); clk_disable_unprepare(video->eclk); + + clear_bit(VIDEO_CLOCKS_ON, &video->flags); } static void aspeed_video_on(struct aspeed_video *video) { + if (test_bit(VIDEO_CLOCKS_ON, &video->flags)) + return; + /* Turn on the relevant clocks */ clk_prepare_enable(video->eclk); clk_prepare_enable(video->vclk); + + set_bit(VIDEO_CLOCKS_ON, &video->flags); } static void aspeed_video_bufs_done(struct aspeed_video *video, From patchwork Fri May 31 22:15:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108601 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLb2ZqLz9s4V for ; Sat, 1 Jun 2019 08:16:23 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLb1f61zDqZ3 for ; Sat, 1 Jun 2019 08:16:23 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLG19wSzDqZ9 for ; Sat, 1 Jun 2019 08:16:05 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:15:57 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:15:57 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 02/10] media: aspeed: refine clock control logic Date: Fri, 31 May 2019 15:15:40 -0700 Message-Id: <20190531221548.14757-3-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" Currently, this driver calls clk_prepare and clk_unprepare from interrupt context too but these should be called from sleepable context only. To fix this issue, this commit splits out clk_enable/disable and clk_prepare/unprepare, and it places clk_prepare/unprepare calls into the module probe/remove function. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: None. drivers/media/platform/aspeed-video.c | 38 ++++++++++++++++++++------- 1 file changed, 29 insertions(+), 9 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 562d7c0adc78..7982ce634936 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -491,8 +491,8 @@ static void aspeed_video_off(struct aspeed_video *video) aspeed_video_write(video, VE_INTERRUPT_CTRL, 0); /* Turn off the relevant clocks */ - clk_disable_unprepare(video->vclk); - clk_disable_unprepare(video->eclk); + clk_disable(video->vclk); + clk_disable(video->eclk); clear_bit(VIDEO_CLOCKS_ON, &video->flags); } @@ -503,8 +503,8 @@ static void aspeed_video_on(struct aspeed_video *video) return; /* Turn on the relevant clocks */ - clk_prepare_enable(video->eclk); - clk_prepare_enable(video->vclk); + clk_enable(video->eclk); + clk_enable(video->vclk); set_bit(VIDEO_CLOCKS_ON, &video->flags); } @@ -1613,31 +1613,46 @@ static int aspeed_video_init(struct aspeed_video *video) return PTR_ERR(video->eclk); } + rc = clk_prepare(video->eclk); + if (rc) + return rc; + video->vclk = devm_clk_get(dev, "vclk"); if (IS_ERR(video->vclk)) { dev_err(dev, "Unable to get VCLK\n"); - return PTR_ERR(video->vclk); + rc = PTR_ERR(video->vclk); + goto err_unprepare_eclk; } + rc = clk_prepare(video->vclk); + if (rc) + goto err_unprepare_eclk; + of_reserved_mem_device_init(dev); rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); if (rc) { dev_err(dev, "Failed to set DMA mask\n"); - of_reserved_mem_device_release(dev); - return rc; + goto err_release_reserved_mem; } if (!aspeed_video_alloc_buf(video, &video->jpeg, VE_JPEG_HEADER_SIZE)) { dev_err(dev, "Failed to allocate DMA for JPEG header\n"); - of_reserved_mem_device_release(dev); - return rc; + goto err_release_reserved_mem; } aspeed_video_init_jpeg_table(video->jpeg.virt, video->yuv420); return 0; + +err_release_reserved_mem: + of_reserved_mem_device_release(dev); + clk_unprepare(video->vclk); +err_unprepare_eclk: + clk_unprepare(video->eclk); + + return rc; } static int aspeed_video_probe(struct platform_device *pdev) @@ -1681,6 +1696,11 @@ static int aspeed_video_remove(struct platform_device *pdev) struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); struct aspeed_video *video = to_aspeed_video(v4l2_dev); + aspeed_video_off(video); + + clk_unprepare(video->vclk); + clk_unprepare(video->eclk); + video_unregister_device(&video->vdev); vb2_queue_release(&video->queue); From patchwork Fri May 31 22:15:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108598 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLQ1bTxz9s4V for ; Sat, 1 Jun 2019 08:16:14 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLQ0fZbzDqcQ for ; Sat, 1 Jun 2019 08:16:14 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLD5B6PzDqZ9 for ; Sat, 1 Jun 2019 08:16:04 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:15:58 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:15:58 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 03/10] media: aspeed: change irq to threaded irq Date: Fri, 31 May 2019 15:15:41 -0700 Message-Id: <20190531221548.14757-4-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" Differently from other Aspeed drivers, this driver calls clock control APIs in interrupt context. Since ECLK is coupled with a reset bit in clk-aspeed module, aspeed_clk_enable will make 10ms of busy waiting delay for triggering the reset and it will eventually disturb other drivers' interrupt handling. To fix this issue, this commit changes this driver's irq to threaded irq so that the delay can be happened in a thread context. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: None. drivers/media/platform/aspeed-video.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 7982ce634936..f7db8969c8f2 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -1600,8 +1600,9 @@ static int aspeed_video_init(struct aspeed_video *video) return -ENODEV; } - rc = devm_request_irq(dev, irq, aspeed_video_irq, IRQF_SHARED, - DEVICE_NAME, video); + rc = devm_request_threaded_irq(dev, irq, NULL, aspeed_video_irq, + IRQF_ONESHOT | IRQF_SHARED, DEVICE_NAME, + video); if (rc < 0) { dev_err(dev, "Unable to request IRQ %d\n", irq); return rc; From patchwork Fri May 31 22:15:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108600 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLW0fj0z9s4V for ; Sat, 1 Jun 2019 08:16:19 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLV6sW1zDqcQ for ; Sat, 1 Jun 2019 08:16:18 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLG38RSzDqZG for ; Sat, 1 Jun 2019 08:16:06 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:15:59 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:15:59 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 04/10] media: aspeed: remove IRQF_SHARED flag Date: Fri, 31 May 2019 15:15:42 -0700 Message-Id: <20190531221548.14757-5-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" Video Engine has a dedicated interrupt line so this driver doesn't need to use IRQF_SHARED flag so remove it. Also, it'd be good for following what Thomas recommended in the IRQF_ONESHOT support patch like below: "Note that for now IRQF_ONESHOT cannot be used with IRQF_SHARED to avoid complex accounting mechanisms." Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: None. drivers/media/platform/aspeed-video.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index f7db8969c8f2..d1b541409544 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -1601,8 +1601,7 @@ static int aspeed_video_init(struct aspeed_video *video) } rc = devm_request_threaded_irq(dev, irq, NULL, aspeed_video_irq, - IRQF_ONESHOT | IRQF_SHARED, DEVICE_NAME, - video); + IRQF_ONESHOT, DEVICE_NAME, video); if (rc < 0) { dev_err(dev, "Unable to request IRQ %d\n", irq); return rc; From patchwork Fri May 31 22:15:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108604 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLl1Kwwz9s4V for ; Sat, 1 Jun 2019 08:16:31 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLl0ThczDqdT for ; Sat, 1 Jun 2019 08:16:31 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLH4SwpzDqZF for ; Sat, 1 Jun 2019 08:16:07 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:16:00 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:16:00 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 05/10] media: aspeed: reduce noisy log printing outs Date: Fri, 31 May 2019 15:15:43 -0700 Message-Id: <20190531221548.14757-6-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" Currently, this driver prints out too much log messages when a mode change happens, video turned off by screen saver and etc. Actually, all cases are reported to user space properly. Also, these are not critical errors but recoverable things, so this commit changes the log level of some noisy printing outs. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: None. drivers/media/platform/aspeed-video.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index d1b541409544..92abdfc79e76 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -441,7 +441,7 @@ static int aspeed_video_start_frame(struct aspeed_video *video) if (!(seq_ctrl & VE_SEQ_CTRL_COMP_BUSY) || !(seq_ctrl & VE_SEQ_CTRL_CAP_BUSY)) { - dev_err(video->dev, "Engine busy; don't start frame\n"); + dev_dbg(video->dev, "Engine busy; don't start frame\n"); return -EBUSY; } @@ -769,7 +769,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) res_check(video), MODE_DETECT_TIMEOUT); if (!rc) { - dev_err(video->dev, "Timed out; first mode detect\n"); + dev_dbg(video->dev, "Timed out; first mode detect\n"); clear_bit(VIDEO_RES_DETECT, &video->flags); return; } @@ -787,7 +787,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) MODE_DETECT_TIMEOUT); clear_bit(VIDEO_RES_DETECT, &video->flags); if (!rc) { - dev_err(video->dev, "Timed out; second mode detect\n"); + dev_dbg(video->dev, "Timed out; second mode detect\n"); return; } @@ -821,7 +821,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) } while (invalid_resolution && (tries++ < INVALID_RESOLUTION_RETRIES)); if (invalid_resolution) { - dev_err(video->dev, "Invalid resolution detected\n"); + dev_dbg(video->dev, "Invalid resolution detected\n"); return; } @@ -1456,7 +1456,7 @@ static void aspeed_video_stop_streaming(struct vb2_queue *q) !test_bit(VIDEO_FRAME_INPRG, &video->flags), STOP_TIMEOUT); if (!rc) { - dev_err(video->dev, "Timed out when stopping streaming\n"); + dev_dbg(video->dev, "Timed out when stopping streaming\n"); /* * Need to force stop any DMA and try and get HW into a good From patchwork Fri May 31 22:15:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108602 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLf0fsTz9s4V for ; Sat, 1 Jun 2019 08:16:26 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLd6jWCzDqZb for ; Sat, 1 Jun 2019 08:16:25 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLH40vKzDqZ9 for ; Sat, 1 Jun 2019 08:16:07 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:16:01 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:16:01 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 06/10] media: aspeed: remove checking of VE_INTERRUPT_CAPTURE_COMPLETE Date: Fri, 31 May 2019 15:15:44 -0700 Message-Id: <20190531221548.14757-7-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" VE_INTERRUPT_CAPTURE_COMPLETE and VE_INTERRUPT_COMP_COMPLETE are not set at the same time but the current interrupt handling mechanism of this driver doesn't clear the interrupt flag until both two are set, and this behavior causes unnecessary interrupt handler calls. In fact, this driver provides JPEG format only so taking care of the VE_INTERRUPT_COMP_COMPLETE is enough for getting compressed image frame so this commit gets rid of the VE_INTERRUPT_CAPTURE_COMPLETE checking logic to simplify the logic. Handling of VE_INTERRUPT_CAPTURE_COMPLETE could be added back later when it's actually needed. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James Reviewed-by: Andrew Jeffery --- v2 -> v3: None. v1 -> v2: None. drivers/media/platform/aspeed-video.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 92abdfc79e76..1cba582918cc 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -463,8 +463,7 @@ static int aspeed_video_start_frame(struct aspeed_video *video) aspeed_video_write(video, VE_COMP_ADDR, addr); aspeed_video_update(video, VE_INTERRUPT_CTRL, 0, - VE_INTERRUPT_COMP_COMPLETE | - VE_INTERRUPT_CAPTURE_COMPLETE); + VE_INTERRUPT_COMP_COMPLETE); aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_TRIG_CAPTURE | VE_SEQ_CTRL_TRIG_COMP); @@ -568,8 +567,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg) } } - if ((sts & VE_INTERRUPT_COMP_COMPLETE) && - (sts & VE_INTERRUPT_CAPTURE_COMPLETE)) { + if (sts & VE_INTERRUPT_COMP_COMPLETE) { struct aspeed_video_buffer *buf; u32 frame_size = aspeed_video_read(video, VE_OFFSET_COMP_STREAM); @@ -598,11 +596,9 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg) VE_SEQ_CTRL_FORCE_IDLE | VE_SEQ_CTRL_TRIG_COMP, 0); aspeed_video_update(video, VE_INTERRUPT_CTRL, - VE_INTERRUPT_COMP_COMPLETE | - VE_INTERRUPT_CAPTURE_COMPLETE, 0); + VE_INTERRUPT_COMP_COMPLETE, 0); aspeed_video_write(video, VE_INTERRUPT_STATUS, - VE_INTERRUPT_COMP_COMPLETE | - VE_INTERRUPT_CAPTURE_COMPLETE); + VE_INTERRUPT_COMP_COMPLETE); if (test_bit(VIDEO_STREAMING, &video->flags) && buf) aspeed_video_start_frame(video); From patchwork Fri May 31 22:15:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108603 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLj1Jckz9s4V for ; Sat, 1 Jun 2019 08:16:29 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLj0QQzzDqcK for ; Sat, 1 Jun 2019 08:16:29 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLH4dZrzDqZG for ; Sat, 1 Jun 2019 08:16:07 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:16:02 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:16:02 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 07/10] media: aspeed: refine interrupt handling logic Date: Fri, 31 May 2019 15:15:45 -0700 Message-Id: <20190531221548.14757-8-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" There are cases that interrupt bits are cleared by a 500ms delayed work which causes unnecessary irq calls. Also, the current interrupt handler returns IRQ_HANDLED always but it should return IRQ_NONE if there is any unhandled interrupt. So this commit refines the interrupt handling logic to fix these issues. Signed-off-by: Jae Hyun Yoo Reviewed-by: Andrew Jeffery Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: None. drivers/media/platform/aspeed-video.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 1cba582918cc..c0b889141b8f 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -488,6 +488,7 @@ static void aspeed_video_off(struct aspeed_video *video) /* Disable interrupts */ aspeed_video_write(video, VE_INTERRUPT_CTRL, 0); + aspeed_video_write(video, VE_INTERRUPT_STATUS, 0xffffffff); /* Turn off the relevant clocks */ clk_disable(video->vclk); @@ -554,7 +555,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg) VE_INTERRUPT_MODE_DETECT, 0); aspeed_video_write(video, VE_INTERRUPT_STATUS, VE_INTERRUPT_MODE_DETECT); - + sts &= ~VE_INTERRUPT_MODE_DETECT; set_bit(VIDEO_MODE_DETECT_DONE, &video->flags); wake_up_interruptible_all(&video->wait); } else { @@ -599,12 +600,12 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg) VE_INTERRUPT_COMP_COMPLETE, 0); aspeed_video_write(video, VE_INTERRUPT_STATUS, VE_INTERRUPT_COMP_COMPLETE); - + sts &= ~VE_INTERRUPT_COMP_COMPLETE; if (test_bit(VIDEO_STREAMING, &video->flags) && buf) aspeed_video_start_frame(video); } - return IRQ_HANDLED; + return sts ? IRQ_NONE : IRQ_HANDLED; } static void aspeed_video_check_and_set_polarity(struct aspeed_video *video) From patchwork Fri May 31 22:15:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108606 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLr3J3Sz9s4V for ; Sat, 1 Jun 2019 08:16:36 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLr230kzDqcj for ; Sat, 1 Jun 2019 08:16:36 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLJ4fG1zDqZ3 for ; Sat, 1 Jun 2019 08:16:08 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:16:03 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:16:03 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 08/10] media: aspeed: remove source buffer allocation before mode detection Date: Fri, 31 May 2019 15:15:46 -0700 Message-Id: <20190531221548.14757-9-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" Mode detection doesn't require source buffer allocation so this commit removes that. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: Corrected re-allocation logic of source buffers. v1 -> v2: New. drivers/media/platform/aspeed-video.c | 37 ++++----------------------- 1 file changed, 5 insertions(+), 32 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index c0b889141b8f..d6708ddb0391 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -731,27 +731,6 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) det->height = MIN_HEIGHT; video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL; - /* - * Since we need max buffer size for detection, free the second source - * buffer first. - */ - if (video->srcs[1].size) - aspeed_video_free_buf(video, &video->srcs[1]); - - if (video->srcs[0].size < VE_MAX_SRC_BUFFER_SIZE) { - if (video->srcs[0].size) - aspeed_video_free_buf(video, &video->srcs[0]); - - if (!aspeed_video_alloc_buf(video, &video->srcs[0], - VE_MAX_SRC_BUFFER_SIZE)) { - dev_err(video->dev, - "Failed to allocate source buffers\n"); - return; - } - } - - aspeed_video_write(video, VE_SRC0_ADDR, video->srcs[0].dma); - do { if (tries) { set_current_state(TASK_INTERRUPTIBLE); @@ -871,20 +850,14 @@ static void aspeed_video_set_resolution(struct aspeed_video *video) size *= 4; - if (size == video->srcs[0].size / 2) { - aspeed_video_write(video, VE_SRC1_ADDR, - video->srcs[0].dma + size); - } else if (size == video->srcs[0].size) { - if (!aspeed_video_alloc_buf(video, &video->srcs[1], size)) - goto err_mem; - - aspeed_video_write(video, VE_SRC1_ADDR, video->srcs[1].dma); - } else { - aspeed_video_free_buf(video, &video->srcs[0]); + if (size != video->srcs[0].size) { + if (video->srcs[0].size) + aspeed_video_free_buf(video, &video->srcs[0]); + if (video->srcs[1].size) + aspeed_video_free_buf(video, &video->srcs[1]); if (!aspeed_video_alloc_buf(video, &video->srcs[0], size)) goto err_mem; - if (!aspeed_video_alloc_buf(video, &video->srcs[1], size)) goto err_mem; From patchwork Fri May 31 22:15:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108605 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLn5lx9z9s4V for ; Sat, 1 Jun 2019 08:16:33 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLn4jB2zDqcp for ; Sat, 1 Jun 2019 08:16:33 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLJ5GsVzDqZB for ; Sat, 1 Jun 2019 08:16:08 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:16:04 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:16:04 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 09/10] media: aspeed: use different delays for triggering VE H/W reset Date: Fri, 31 May 2019 15:15:47 -0700 Message-Id: <20190531221548.14757-10-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" In case of watchdog timeout detected while doing mode detection, it's better triggering video engine hardware reset immediately so this commit fixes code for the case. Other than the case, it will trigger video engine hardware reset after RESOLUTION_CHANGE_DELAY. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: None. v1 -> v2: New. drivers/media/platform/aspeed-video.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index d6708ddb0391..ba093096a5a7 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -522,7 +522,7 @@ static void aspeed_video_bufs_done(struct aspeed_video *video, spin_unlock_irqrestore(&video->lock, flags); } -static void aspeed_video_irq_res_change(struct aspeed_video *video) +static void aspeed_video_irq_res_change(struct aspeed_video *video, ulong delay) { dev_dbg(video->dev, "Resolution changed; resetting\n"); @@ -532,7 +532,7 @@ static void aspeed_video_irq_res_change(struct aspeed_video *video) aspeed_video_off(video); aspeed_video_bufs_done(video, VB2_BUF_STATE_ERROR); - schedule_delayed_work(&video->res_work, RESOLUTION_CHANGE_DELAY); + schedule_delayed_work(&video->res_work, delay); } static irqreturn_t aspeed_video_irq(int irq, void *arg) @@ -545,7 +545,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg) * re-initialize */ if (sts & VE_INTERRUPT_MODE_DETECT_WD) { - aspeed_video_irq_res_change(video); + aspeed_video_irq_res_change(video, 0); return IRQ_HANDLED; } @@ -563,7 +563,8 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg) * Signal acquired while NOT doing resolution * detection; reset the engine and re-initialize */ - aspeed_video_irq_res_change(video); + aspeed_video_irq_res_change(video, + RESOLUTION_CHANGE_DELAY); return IRQ_HANDLED; } } From patchwork Fri May 31 22:15:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 1108607 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FzLt6CGJz9s4V for ; Sat, 1 Jun 2019 08:16:38 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FzLt5KVgzDqch for ; Sat, 1 Jun 2019 08:16:38 +1000 (AEST) X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (helo) smtp.helo=mga12.intel.com (client-ip=192.55.52.136; helo=mga12.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FzLJ5sVXzDqZG for ; Sat, 1 Jun 2019 08:16:08 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 May 2019 15:16:05 -0700 X-ExtLoop1: 1 Received: from maru.jf.intel.com ([10.54.51.75]) by orsmga001.jf.intel.com with ESMTP; 31 May 2019 15:16:05 -0700 From: Jae Hyun Yoo To: Eddie James , Mauro Carvalho Chehab , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt Subject: [PATCH v3 10/10] media: aspeed: add a workaround to fix a silicon bug Date: Fri, 31 May 2019 15:15:48 -0700 Message-Id: <20190531221548.14757-11-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> References: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" AST2500 silicon revision A1 and A2 have a silicon bug which causes extremly long capturing time on specific resolutions (1680 width). To fix the bug, this commit adjusts the capturing window register setting to 1728 if detected width is 1680. The compression window register setting will be kept as the original width so output result will be the same. Signed-off-by: Jae Hyun Yoo Reviewed-by: Eddie James --- v2 -> v3: Added more detail comments why the value 1728 is picked. v1 -> v2: New. drivers/media/platform/aspeed-video.c | 28 ++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index ba093096a5a7..f899ac3b4a61 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -824,8 +824,29 @@ static void aspeed_video_set_resolution(struct aspeed_video *video) struct v4l2_bt_timings *act = &video->active_timings; unsigned int size = act->width * act->height; + /* Set capture/compression frame sizes */ aspeed_video_calc_compressed_size(video, size); + if (video->active_timings.width == 1680) { + /* + * This is a workaround to fix a silicon bug on A1 and A2 + * revisions. Since it doesn't break capturing operation of + * other revisions, use it for all revisions without checking + * the revision ID. It picked 1728 which is a very next + * 64-pixels aligned value to 1680 to minimize memory bandwidth + * and to get better access speed from video engine. + */ + aspeed_video_write(video, VE_CAP_WINDOW, + 1728 << 16 | act->height); + size += (1728 - 1680) * video->active_timings.height; + } else { + aspeed_video_write(video, VE_CAP_WINDOW, + act->width << 16 | act->height); + } + aspeed_video_write(video, VE_COMP_WINDOW, + act->width << 16 | act->height); + aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 4); + /* Don't use direct mode below 1024 x 768 (irqs don't fire) */ if (size < DIRECT_FETCH_THRESHOLD) { aspeed_video_write(video, VE_TGS_0, @@ -842,13 +863,6 @@ static void aspeed_video_set_resolution(struct aspeed_video *video) aspeed_video_update(video, VE_CTRL, 0, VE_CTRL_DIRECT_FETCH); } - /* Set capture/compression frame sizes */ - aspeed_video_write(video, VE_CAP_WINDOW, - act->width << 16 | act->height); - aspeed_video_write(video, VE_COMP_WINDOW, - act->width << 16 | act->height); - aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 4); - size *= 4; if (size != video->srcs[0].size) {