From patchwork Wed Mar 25 12:14:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457611 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B974217D4 for ; Wed, 25 Mar 2020 12:15:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 99080207FF for ; Wed, 25 Mar 2020 12:15:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="KIPrtUt1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727399AbgCYMP4 (ORCPT ); Wed, 25 Mar 2020 08:15:56 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:60916 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMP4 (ORCPT ); Wed, 25 Mar 2020 08:15:56 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFqPN012911; Wed, 25 Mar 2020 07:15:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138552; bh=IiA6Y6uIhckpd4wm4aVOMaEaPV5ksJ9Hyu9eYzzkdlw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=KIPrtUt1VuSw25rZA3bngFLGavuuMIcIrMszRzLLNiA0B8YqrGYFPL9/s3dBhEl7v JhHyiQbVpxrUR7mm1XRETJBdlwq5wmIOu6NVSaLM1142hOrSbAIiZgBZ61ZDJbDb75 lQMCHc+WIGdYvtizHY/Ed1AXSo94PeQIxJTdFDd4= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCFqRC013042 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:15:52 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:15:52 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:15:52 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm50085323; Wed, 25 Mar 2020 07:15:50 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 01/19] media: ti-vpe: cal: fix DMA memory corruption Date: Wed, 25 Mar 2020 14:14:52 +0200 Message-ID: <20200325121510.25923-2-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org When the CAL driver stops streaming, it will shut everything down without waiting for the current frame to finish. This leaves the CAL DMA in a slightly undefined state, and when CAL DMA is enabled when the stream is started the next time, the old DMA transfer will continue. It is not clear if the old DMA transfer continues with the exact settings of the original transfer, or is it a mix of old and new settings, but in any case the end result is memory corruption as the destination memory address is no longer valid. I could not find any way to ensure that any old DMA transfer would be discarded, except perhaps full CAL reset. But we cannot do a full reset when one port is getting enabled, as that would reset both ports. This patch tries to make sure that the DMA transfer is finished properly when the stream is being stopped. I say "tries", as, as mentioned above, I don't see a way to force the DMA transfer to finish. I believe this fixes the corruptions for normal cases, but if for some reason the DMA of the final frame would stall a lot, resulting in timeout in the code waiting for the DMA to finish, we'll again end up with unfinished DMA transfer. However, I don't know what could cause such a timeout. Signed-off-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 32 +++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 6c8f3702eac0..9dd6de14189b 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -412,6 +412,8 @@ struct cal_ctx { struct cal_buffer *cur_frm; /* Pointer pointing to next v4l2_buffer */ struct cal_buffer *next_frm; + + bool dma_act; }; static const struct cal_fmt *find_format_by_pix(struct cal_ctx *ctx, @@ -942,6 +944,7 @@ static void csi2_lane_config(struct cal_ctx *ctx) static void csi2_ppi_enable(struct cal_ctx *ctx) { + reg_write(ctx->dev, CAL_CSI2_PPI_CTRL(ctx->csi2_port), BIT(3)); reg_write_field(ctx->dev, CAL_CSI2_PPI_CTRL(ctx->csi2_port), CAL_GEN_ENABLE, CAL_CSI2_PPI_CTRL_IF_EN_MASK); } @@ -1204,15 +1207,25 @@ static irqreturn_t cal_irq(int irq_cal, void *data) if (isportirqset(irqst2, 1)) { ctx = dev->ctx[0]; + spin_lock(&ctx->slock); + ctx->dma_act = false; + if (ctx->cur_frm != ctx->next_frm) cal_process_buffer_complete(ctx); + + spin_unlock(&ctx->slock); } if (isportirqset(irqst2, 2)) { ctx = dev->ctx[1]; + spin_lock(&ctx->slock); + ctx->dma_act = false; + if (ctx->cur_frm != ctx->next_frm) cal_process_buffer_complete(ctx); + + spin_unlock(&ctx->slock); } } @@ -1228,6 +1241,7 @@ static irqreturn_t cal_irq(int irq_cal, void *data) dma_q = &ctx->vidq; spin_lock(&ctx->slock); + ctx->dma_act = true; if (!list_empty(&dma_q->active) && ctx->cur_frm == ctx->next_frm) cal_schedule_next_buffer(ctx); @@ -1239,6 +1253,7 @@ static irqreturn_t cal_irq(int irq_cal, void *data) dma_q = &ctx->vidq; spin_lock(&ctx->slock); + ctx->dma_act = true; if (!list_empty(&dma_q->active) && ctx->cur_frm == ctx->next_frm) cal_schedule_next_buffer(ctx); @@ -1711,10 +1726,27 @@ static void cal_stop_streaming(struct vb2_queue *vq) struct cal_ctx *ctx = vb2_get_drv_priv(vq); struct cal_dmaqueue *dma_q = &ctx->vidq; struct cal_buffer *buf, *tmp; + unsigned long timeout; unsigned long flags; int ret; + bool dma_act; csi2_ppi_disable(ctx); + + /* wait for stream and dma to finish */ + dma_act = true; + timeout = jiffies + msecs_to_jiffies(500); + while (dma_act && time_before(jiffies, timeout)) { + msleep(50); + + spin_lock_irqsave(&ctx->slock, flags); + dma_act = ctx->dma_act; + spin_unlock_irqrestore(&ctx->slock, flags); + } + + if (dma_act) + ctx_err(ctx, "failed to disable dma cleanly\n"); + disable_irqs(ctx); csi2_phy_deinit(ctx); From patchwork Wed Mar 25 12:14:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457613 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2CD151668 for ; Wed, 25 Mar 2020 12:15:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0D0CA207FC for ; 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Wed, 25 Mar 2020 07:15:54 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:15:54 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:15:54 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm51085323; Wed, 25 Mar 2020 07:15:52 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 02/19] media: ti-vpe: cal: improve enable_irqs Date: Wed, 25 Mar 2020 14:14:53 +0200 Message-ID: <20200325121510.25923-3-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org IRQENABLE_SET registers are (usually) not meant to be read, only written to. The current driver needlessly uses read-modify-write cycle to enable IRQ bits. The read-modify-write has no bad side effects here, but it's still better to clean this up by only using write. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 9dd6de14189b..76d55c76d938 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -706,16 +706,16 @@ static void cal_quickdump_regs(struct cal_dev *dev) */ static void enable_irqs(struct cal_ctx *ctx) { + u32 val; + /* Enable IRQ_WDMA_END 0/1 */ - reg_write_field(ctx->dev, - CAL_HL_IRQENABLE_SET(2), - CAL_HL_IRQ_ENABLE, - CAL_HL_IRQ_MASK(ctx->csi2_port)); + val = 0; + set_field(&val, CAL_HL_IRQ_ENABLE, CAL_HL_IRQ_MASK(ctx->csi2_port)); + reg_write(ctx->dev, CAL_HL_IRQENABLE_SET(2), val); /* Enable IRQ_WDMA_START 0/1 */ - reg_write_field(ctx->dev, - CAL_HL_IRQENABLE_SET(3), - CAL_HL_IRQ_ENABLE, - CAL_HL_IRQ_MASK(ctx->csi2_port)); + val = 0; + set_field(&val, CAL_HL_IRQ_ENABLE, CAL_HL_IRQ_MASK(ctx->csi2_port)); + reg_write(ctx->dev, CAL_HL_IRQENABLE_SET(3), val); /* Todo: Add VC_IRQ and CSI2_COMPLEXIO_IRQ handling */ reg_write(ctx->dev, CAL_CSI2_VC_IRQENABLE(1), 0xFF000000); } From patchwork Wed Mar 25 12:14:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457615 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9E7081668 for ; Wed, 25 Mar 2020 12:16:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F0BD20772 for ; Wed, 25 Mar 2020 12:16:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Oqfhz3ld" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727417AbgCYMQA (ORCPT ); Wed, 25 Mar 2020 08:16:00 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41786 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMP7 (ORCPT ); Wed, 25 Mar 2020 08:15:59 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFuZG062544; Wed, 25 Mar 2020 07:15:56 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138556; bh=5DcsgGVVuSpg/oFh3jij0RVGgnnLVc9FzW3d4RBIpBY=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Oqfhz3ldEpifi0ccfoWEZG35Bah3O2Ws40hdpkVAjrOf9TnmCvJEKyxf9SRveKbXG ZJG/QSF7XUwehZ05CeByAGI/hU3U4h0nhHJu3QnPzS13V0KSJPxOJuvp0Ytz+PaFD+ RqGqiLRM3WOjFeNV+98juWG+fsJoMxj+i9HHxe+w= Received: from DLEE114.ent.ti.com (dlee114.ent.ti.com [157.170.170.25]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCFuuB087123 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:15:56 -0500 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:15:56 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:15:55 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm52085323; Wed, 25 Mar 2020 07:15:54 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 03/19] media: ti-vpe: cal: fix use of wrong macro Date: Wed, 25 Mar 2020 14:14:54 +0200 Message-ID: <20200325121510.25923-4-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org i913_errata() sets a bit to 1 in PHY_REG10, but for some reason uses CAL_CSI2_PHY_REG0_HSCLOCKCONFIG_DISABLE for the bit value. The value of that macro is 1, so it works, but is still wrong. Fix this to 1. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 76d55c76d938..c418296df0f8 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -645,8 +645,7 @@ static void i913_errata(struct cal_dev *dev, unsigned int port) { u32 reg10 = reg_read(dev->cc[port], CAL_CSI2_PHY_REG10); - set_field(®10, CAL_CSI2_PHY_REG0_HSCLOCKCONFIG_DISABLE, - CAL_CSI2_PHY_REG10_I933_LDO_DISABLE_MASK); + set_field(®10, 1, CAL_CSI2_PHY_REG10_I933_LDO_DISABLE_MASK); cal_dbg(1, dev, "CSI2_%d_REG10 = 0x%08x\n", port, reg10); reg_write(dev->cc[port], CAL_CSI2_PHY_REG10, reg10); From patchwork Wed Mar 25 12:14:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457617 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6146C14B4 for ; Wed, 25 Mar 2020 12:16:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 40E332077D for ; Wed, 25 Mar 2020 12:16:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="CEl42kte" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727438AbgCYMQC (ORCPT ); Wed, 25 Mar 2020 08:16:02 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:60938 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQC (ORCPT ); Wed, 25 Mar 2020 08:16:02 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFxV9012937; Wed, 25 Mar 2020 07:15:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138559; bh=N05zgg4Sh4fmyfWz3z1buQNniicw8t02htoHXgY6qK0=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=CEl42kteC+q5tWq5sk1wYe5bzqNGaBy6KhhCjY7/tSpEAoiTpiGLrsjFImpR7Jnnw q248kS2AsLezjSr9Fr9/XPx6+q+dk+tE5xChLgeuN+gDdoTj29njsNHGjReh28+VMm QdRikUnvyJspKr67MHlOpQKQ2dG/jVnTV5UCosjU= Received: from DFLE100.ent.ti.com (dfle100.ent.ti.com [10.64.6.21]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCFxDA096857 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:15:59 -0500 Received: from DFLE113.ent.ti.com (10.64.6.34) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:15:58 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:15:58 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm53085323; Wed, 25 Mar 2020 07:15:57 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 04/19] media: ti-vpe: cal: use runtime_resume for errata handling Date: Wed, 25 Mar 2020 14:14:55 +0200 Message-ID: <20200325121510.25923-5-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org We need to do errata handling every time CAL is being enabled. The code is currently in cal_runtime_get(), which is not the correct place for it. Move the code to cal_runtime_resume, which is called every time CAL is enabled. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 36 ++++++++++++++++++----------- 1 file changed, 22 insertions(+), 14 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index c418296df0f8..4fe37f284b54 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -653,20 +653,7 @@ static void i913_errata(struct cal_dev *dev, unsigned int port) static int cal_runtime_get(struct cal_dev *dev) { - int r; - - r = pm_runtime_get_sync(&dev->pdev->dev); - - if (dev->flags & DRA72_CAL_PRE_ES2_LDO_DISABLE) { - /* - * Apply errata on both port eveytime we (re-)enable - * the clock - */ - i913_errata(dev, 0); - i913_errata(dev, 1); - } - - return r; + return pm_runtime_get_sync(&dev->pdev->dev); } static inline void cal_runtime_put(struct cal_dev *dev) @@ -2409,11 +2396,32 @@ static const struct of_device_id cal_of_match[] = { MODULE_DEVICE_TABLE(of, cal_of_match); #endif +static int cal_runtime_resume(struct device *dev) +{ + struct cal_dev *caldev = dev_get_drvdata(dev); + + if (caldev->flags & DRA72_CAL_PRE_ES2_LDO_DISABLE) { + /* + * Apply errata on both port everytime we (re-)enable + * the clock + */ + i913_errata(caldev, 0); + i913_errata(caldev, 1); + } + + return 0; +} + +static const struct dev_pm_ops cal_pm_ops = { + .runtime_resume = cal_runtime_resume, +}; + static struct platform_driver cal_pdrv = { .probe = cal_probe, .remove = cal_remove, .driver = { .name = CAL_MODULE_NAME, + .pm = &cal_pm_ops, .of_match_table = of_match_ptr(cal_of_match), }, }; From patchwork Wed Mar 25 12:14:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457619 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8EA151668 for ; Wed, 25 Mar 2020 12:16:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F2752078A for ; Wed, 25 Mar 2020 12:16:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="NF6mU7aX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727459AbgCYMQG (ORCPT ); Wed, 25 Mar 2020 08:16:06 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:39300 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQF (ORCPT ); Wed, 25 Mar 2020 08:16:05 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCG0ik078490; Wed, 25 Mar 2020 07:16:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138560; bh=cTBRrkkOCtyyKiB5onm+WPH8Vyk6Vkq4AOUoUNY4Ruw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=NF6mU7aXpaGMz4NXPqqGfv2cxv2ycFw25XMEiXITJjXJ9TgrIO6CT3YGZk+frDqXW C3qz1v1CBG8hVPBkXwfFW7/gmFw7AAth6pmtuo86Ibu57CrYe0KHRdNaS7g1Z0kc14 O8sLlx2YXc5PhdY2SvZRGfCnhQ9QcgSv0/ly3pKc= Received: from DLEE107.ent.ti.com (dlee107.ent.ti.com [157.170.170.37]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCG0To096908 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:16:00 -0500 Received: from DLEE110.ent.ti.com (157.170.170.21) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:00 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE110.ent.ti.com (157.170.170.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:00 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm54085323; Wed, 25 Mar 2020 07:15:58 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 05/19] media: ti-vpe: cal: drop cal_runtime_get/put Date: Wed, 25 Mar 2020 14:14:56 +0200 Message-ID: <20200325121510.25923-6-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Now that cal_runtime_get and cal_runtime_put are only direct wrappers to pm_runtime_get/put, we can drop cal_runtime_get and cal_runtime_put. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 24 +++++++----------------- 1 file changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 4fe37f284b54..4f9dee3474ba 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -651,16 +651,6 @@ static void i913_errata(struct cal_dev *dev, unsigned int port) reg_write(dev->cc[port], CAL_CSI2_PHY_REG10, reg10); } -static int cal_runtime_get(struct cal_dev *dev) -{ - return pm_runtime_get_sync(&dev->pdev->dev); -} - -static inline void cal_runtime_put(struct cal_dev *dev) -{ - pm_runtime_put_sync(&dev->pdev->dev); -} - static void cal_quickdump_regs(struct cal_dev *dev) { cal_info(dev, "CAL Registers @ 0x%pa:\n", &dev->res->start); @@ -1666,7 +1656,7 @@ static int cal_start_streaming(struct vb2_queue *vq, unsigned int count) goto err; } - cal_runtime_get(ctx->dev); + pm_runtime_get_sync(&ctx->dev->pdev->dev); csi2_ctx_config(ctx); pix_proc_config(ctx); @@ -1681,7 +1671,7 @@ static int cal_start_streaming(struct vb2_queue *vq, unsigned int count) if (ret) { v4l2_subdev_call(ctx->sensor, core, s_power, 0); ctx_err(ctx, "stream on failed in subdev\n"); - cal_runtime_put(ctx->dev); + pm_runtime_put_sync(&ctx->dev->pdev->dev); goto err; } @@ -1761,7 +1751,7 @@ static void cal_stop_streaming(struct vb2_queue *vq) ctx->next_frm = NULL; spin_unlock_irqrestore(&ctx->slock, flags); - cal_runtime_put(ctx->dev); + pm_runtime_put_sync(&ctx->dev->pdev->dev); } static const struct vb2_ops cal_video_qops = { @@ -2316,14 +2306,14 @@ static int cal_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); - ret = cal_runtime_get(dev); + ret = pm_runtime_get_sync(&pdev->dev); if (ret) goto runtime_disable; /* Just check we can actually access the module */ cal_get_hwinfo(dev); - cal_runtime_put(dev); + pm_runtime_put_sync(&pdev->dev); return 0; @@ -2351,7 +2341,7 @@ static int cal_remove(struct platform_device *pdev) cal_dbg(1, dev, "Removing %s\n", CAL_MODULE_NAME); - cal_runtime_get(dev); + pm_runtime_get_sync(&pdev->dev); for (i = 0; i < CAL_NUM_CONTEXT; i++) { ctx = dev->ctx[i]; @@ -2367,7 +2357,7 @@ static int cal_remove(struct platform_device *pdev) } } - cal_runtime_put(dev); + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); return 0; From patchwork Wed Mar 25 12:14:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457621 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8A3671668 for ; Wed, 25 Mar 2020 12:16:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 69FE22077D for ; Wed, 25 Mar 2020 12:16:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="fH0uGgbs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727466AbgCYMQH (ORCPT ); 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Wed, 25 Mar 2020 07:16:02 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:02 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm55085323; Wed, 25 Mar 2020 07:16:00 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 06/19] media: ti-vpe: cal: catch error irqs and print errors Date: Wed, 25 Mar 2020 14:14:57 +0200 Message-ID: <20200325121510.25923-7-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org CAL reports various errors via IRQs, which are not handled at all by the current driver. Add code to enable and catch those IRQs and print errors. This will make it much easier to notice and debug issues with sensors. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 46 +++++++++++++++++++++++- drivers/media/platform/ti-vpe/cal_regs.h | 6 ++++ 2 files changed, 51 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 4f9dee3474ba..838215a3f230 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -684,6 +684,21 @@ static void enable_irqs(struct cal_ctx *ctx) { u32 val; + const u32 cio_err_mask = + CAL_CSI2_COMPLEXIO_IRQ_LANE_ERRORS_MASK | + CAL_CSI2_COMPLEXIO_IRQ_FIFO_OVR_MASK | + CAL_CSI2_COMPLEXIO_IRQ_SHORT_PACKET_MASK | + CAL_CSI2_COMPLEXIO_IRQ_ECC_NO_CORRECTION_MASK; + + /* Enable CIO error irqs */ + reg_write(ctx->dev, CAL_HL_IRQENABLE_SET(1), + CAL_HL_IRQ_CIO_MASK(ctx->csi2_port)); + reg_write(ctx->dev, CAL_CSI2_COMPLEXIO_IRQENABLE(ctx->csi2_port), + cio_err_mask); + + /* Always enable OCPO error */ + reg_write(ctx->dev, CAL_HL_IRQENABLE_SET(1), CAL_HL_IRQ_OCPO_ERR_MASK); + /* Enable IRQ_WDMA_END 0/1 */ val = 0; set_field(&val, CAL_HL_IRQ_ENABLE, CAL_HL_IRQ_MASK(ctx->csi2_port)); @@ -700,6 +715,12 @@ static void disable_irqs(struct cal_ctx *ctx) { u32 val; + /* Disable CIO error irqs */ + reg_write(ctx->dev, CAL_HL_IRQENABLE_CLR(1), + CAL_HL_IRQ_CIO_MASK(ctx->csi2_port)); + reg_write(ctx->dev, CAL_CSI2_COMPLEXIO_IRQENABLE(ctx->csi2_port), + 0); + /* Disable IRQ_WDMA_END 0/1 */ val = 0; set_field(&val, CAL_HL_IRQ_CLEAR, CAL_HL_IRQ_MASK(ctx->csi2_port)); @@ -1171,7 +1192,30 @@ static irqreturn_t cal_irq(int irq_cal, void *data) struct cal_dev *dev = (struct cal_dev *)data; struct cal_ctx *ctx; struct cal_dmaqueue *dma_q; - u32 irqst2, irqst3; + u32 irqst1, irqst2, irqst3; + + irqst1 = reg_read(dev, CAL_HL_IRQSTATUS(1)); + if (irqst1) { + int i; + + reg_write(dev, CAL_HL_IRQSTATUS(1), irqst1); + + if (irqst1 & CAL_HL_IRQ_OCPO_ERR_MASK) + dev_err_ratelimited(&dev->pdev->dev, "OCPO ERROR\n"); + + for (i = 1; i <= 2; ++i) { + if (irqst1 & CAL_HL_IRQ_CIO_MASK(i)) { + u32 cio_stat = reg_read(dev, + CAL_CSI2_COMPLEXIO_IRQSTATUS(i)); + + dev_err_ratelimited(&dev->pdev->dev, + "CIO%d error: %#08x\n", i, cio_stat); + + reg_write(dev, CAL_CSI2_COMPLEXIO_IRQSTATUS(i), + cio_stat); + } + } + } /* Check which DMA just finished */ irqst2 = reg_read(dev, CAL_HL_IRQSTATUS(2)); diff --git a/drivers/media/platform/ti-vpe/cal_regs.h b/drivers/media/platform/ti-vpe/cal_regs.h index 0b76d1186074..2d71f1e86e2a 100644 --- a/drivers/media/platform/ti-vpe/cal_regs.h +++ b/drivers/media/platform/ti-vpe/cal_regs.h @@ -158,6 +158,11 @@ #define CAL_HL_IRQ_ENABLED 0x1 #define CAL_HL_IRQ_PENDING 0x1 +#define CAL_HL_IRQ_OCPO_ERR_MASK BIT(6) + +#define CAL_HL_IRQ_CIO_MASK(i) BIT(16 + ((i)-1) * 8) +#define CAL_HL_IRQ_VC_MASK(i) BIT(17 + ((i)-1) * 8) + #define CAL_PIX_PROC_EN_MASK BIT(0) #define CAL_PIX_PROC_EXTRACT_MASK GENMASK(4, 1) #define CAL_PIX_PROC_EXTRACT_B6 0x0 @@ -414,6 +419,7 @@ #define CAL_CSI2_COMPLEXIO_IRQ_ERRCONTROL3_MASK BIT(17) #define CAL_CSI2_COMPLEXIO_IRQ_ERRCONTROL4_MASK BIT(18) #define CAL_CSI2_COMPLEXIO_IRQ_ERRCONTROL5_MASK BIT(19) +#define CAL_CSI2_COMPLEXIO_IRQ_LANE_ERRORS_MASK GENMASK(19, 0) #define CAL_CSI2_COMPLEXIO_IRQ_STATEULPM1_MASK BIT(20) #define CAL_CSI2_COMPLEXIO_IRQ_STATEULPM2_MASK BIT(21) #define CAL_CSI2_COMPLEXIO_IRQ_STATEULPM3_MASK BIT(22) From patchwork Wed Mar 25 12:14:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457623 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EFA5014B4 for ; Wed, 25 Mar 2020 12:16:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDCB32077D for ; Wed, 25 Mar 2020 12:16:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="FAoiiMci" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727469AbgCYMQH (ORCPT ); Wed, 25 Mar 2020 08:16:07 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41802 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQG (ORCPT ); Wed, 25 Mar 2020 08:16:06 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCG4tv062599; Wed, 25 Mar 2020 07:16:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138564; bh=cZJwp65vYohd5HAxMGhETHbv8wxpd9PR332Sr1BuADA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=FAoiiMci5cVAGY8GAaCOV1sGsIxO7uBF3zS87ltJioo5vidnzDhFREob8ENwto//4 S59aOBQHXJcqd8QHlTEm1fKGZZYU+6msFPhSQNQEgYbdEyr3rIy1ZC+ZydkJJGqsDE P444Nm21iyBjiIXAcob/FrNFQ6j0PB1zfNzm5pEY= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCG4QV003387; Wed, 25 Mar 2020 07:16:04 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:03 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:03 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm56085323; Wed, 25 Mar 2020 07:16:02 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 07/19] media: ti-vpe: cal: print errors on timeouts Date: Wed, 25 Mar 2020 14:14:58 +0200 Message-ID: <20200325121510.25923-8-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The driver does not print any errors on ComplexIO reset timeout or when waiting for stop-state, making it difficult to debug and notice problems. Add error prints for these cases. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 838215a3f230..9bfe83fdd76e 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -839,10 +839,11 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx) break; usleep_range(1000, 1100); } - ctx_dbg(3, ctx, "CAL_CSI2_COMPLEXIO_CFG(%d) = 0x%08x Complex IO Reset Done (%d) %s\n", - ctx->csi2_port, - reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)), i, - (i >= 250) ? "(timeout)" : ""); + + if (reg_read_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_MASK) != + CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_RESETCOMPLETED) + ctx_err(ctx, "Timeout waiting for Complex IO reset done\n"); /* 4. G. Wait for all enabled lane to reach stop state */ for (i = 0; i < 10; i++) { @@ -853,10 +854,10 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx) break; usleep_range(1000, 1100); } - ctx_dbg(3, ctx, "CAL_CSI2_TIMING(%d) = 0x%08x Stop State Reached %s\n", - ctx->csi2_port, - reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port)), - (i >= 10) ? "(timeout)" : ""); + + if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), + CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) != 0) + ctx_err(ctx, "Timeout waiting for stop state\n"); ctx_dbg(1, ctx, "CSI2_%d_REG1 = 0x%08x (Bit(31,28) should be set!)\n", (ctx->csi2_port - 1), reg_read(ctx->cc, CAL_CSI2_PHY_REG1)); From patchwork Wed Mar 25 12:14:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457625 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 24DE014B4 for ; Wed, 25 Mar 2020 12:16:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 05FC62078D for ; Wed, 25 Mar 2020 12:16:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="pu8Ti5yN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727483AbgCYMQJ (ORCPT ); Wed, 25 Mar 2020 08:16:09 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:39314 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQJ (ORCPT ); Wed, 25 Mar 2020 08:16:09 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCG60O078524; Wed, 25 Mar 2020 07:16:06 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138566; bh=0NvQwr4geNSED7nzsef812hmZpUS3Q5SDOTKBytWIY8=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=pu8Ti5yNzy0B6fygHSna7y07QaInY/Q5EgzWlFLSIn2ftay7DcCdeI6wwEfhnEUY5 KFHclzawwUUIvn67yl0nBiK8PFWYIDeYmVup6LrLozk+naOhAK0S6VPkK3mnD9/bM6 NBQXZ7ZCidy2fIh4GFcHziOqno14jsUElOw2zr08= Received: from DFLE108.ent.ti.com (dfle108.ent.ti.com [10.64.6.29]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCG6Bh003495; Wed, 25 Mar 2020 07:16:06 -0500 Received: from DFLE105.ent.ti.com (10.64.6.26) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:05 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:05 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm57085323; Wed, 25 Mar 2020 07:16:04 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 08/19] media: ti-vpe: cal: simplify irq handling Date: Wed, 25 Mar 2020 14:14:59 +0200 Message-ID: <20200325121510.25923-9-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Instead of having identical code block to handle irqs for the two CAL ports, we can have a for loop and a single code block. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 68 +++++++++++------------------ 1 file changed, 25 insertions(+), 43 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 9bfe83fdd76e..df06ecfdfc6a 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -1221,64 +1221,46 @@ static irqreturn_t cal_irq(int irq_cal, void *data) /* Check which DMA just finished */ irqst2 = reg_read(dev, CAL_HL_IRQSTATUS(2)); if (irqst2) { + int i; + /* Clear Interrupt status */ reg_write(dev, CAL_HL_IRQSTATUS(2), irqst2); - /* Need to check both port */ - if (isportirqset(irqst2, 1)) { - ctx = dev->ctx[0]; - - spin_lock(&ctx->slock); - ctx->dma_act = false; - - if (ctx->cur_frm != ctx->next_frm) - cal_process_buffer_complete(ctx); - - spin_unlock(&ctx->slock); - } - - if (isportirqset(irqst2, 2)) { - ctx = dev->ctx[1]; + for (i = 1; i <= 2; ++i) { + if (isportirqset(irqst2, i)) { + ctx = dev->ctx[i - 1]; - spin_lock(&ctx->slock); - ctx->dma_act = false; + spin_lock(&ctx->slock); + ctx->dma_act = false; - if (ctx->cur_frm != ctx->next_frm) - cal_process_buffer_complete(ctx); + if (ctx->cur_frm != ctx->next_frm) + cal_process_buffer_complete(ctx); - spin_unlock(&ctx->slock); + spin_unlock(&ctx->slock); + } } } /* Check which DMA just started */ irqst3 = reg_read(dev, CAL_HL_IRQSTATUS(3)); if (irqst3) { + int i; + /* Clear Interrupt status */ reg_write(dev, CAL_HL_IRQSTATUS(3), irqst3); - /* Need to check both port */ - if (isportirqset(irqst3, 1)) { - ctx = dev->ctx[0]; - dma_q = &ctx->vidq; - - spin_lock(&ctx->slock); - ctx->dma_act = true; - if (!list_empty(&dma_q->active) && - ctx->cur_frm == ctx->next_frm) - cal_schedule_next_buffer(ctx); - spin_unlock(&ctx->slock); - } - - if (isportirqset(irqst3, 2)) { - ctx = dev->ctx[1]; - dma_q = &ctx->vidq; - - spin_lock(&ctx->slock); - ctx->dma_act = true; - if (!list_empty(&dma_q->active) && - ctx->cur_frm == ctx->next_frm) - cal_schedule_next_buffer(ctx); - spin_unlock(&ctx->slock); + for (i = 1; i <= 2; ++i) { + if (isportirqset(irqst3, i)) { + ctx = dev->ctx[i - 1]; + dma_q = &ctx->vidq; + + spin_lock(&ctx->slock); + ctx->dma_act = true; + if (!list_empty(&dma_q->active) && + ctx->cur_frm == ctx->next_frm) + cal_schedule_next_buffer(ctx); + spin_unlock(&ctx->slock); + } } } From patchwork Wed Mar 25 12:15:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457627 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 507C91668 for ; Wed, 25 Mar 2020 12:16:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3178E20772 for ; Wed, 25 Mar 2020 12:16:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="xuue8YQF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727490AbgCYMQK (ORCPT ); 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Wed, 25 Mar 2020 07:16:07 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:07 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm58085323; Wed, 25 Mar 2020 07:16:05 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 09/19] media: ti-vpe: cal: remove useless CAL_GEN_* macros Date: Wed, 25 Mar 2020 14:15:00 +0200 Message-ID: <20200325121510.25923-10-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org These macros only obfuscate the code, so drop them. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 20 ++++++++------------ drivers/media/platform/ti-vpe/cal_regs.h | 9 --------- 2 files changed, 8 insertions(+), 21 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index df06ecfdfc6a..101efe3a1045 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -777,10 +777,8 @@ static void csi2_phy_init(struct cal_ctx *ctx) /* 3.B. Program Stop States */ val = reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port)); - set_field(&val, CAL_GEN_ENABLE, - CAL_CSI2_TIMING_STOP_STATE_X16_IO1_MASK); - set_field(&val, CAL_GEN_DISABLE, - CAL_CSI2_TIMING_STOP_STATE_X4_IO1_MASK); + set_field(&val, 1, CAL_CSI2_TIMING_STOP_STATE_X16_IO1_MASK); + set_field(&val, 0, CAL_CSI2_TIMING_STOP_STATE_X4_IO1_MASK); set_field(&val, 407, CAL_CSI2_TIMING_STOP_STATE_COUNTER_IO1_MASK); reg_write(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), val); ctx_dbg(3, ctx, "CAL_CSI2_TIMING(%d) = 0x%08x Stop States\n", @@ -789,8 +787,7 @@ static void csi2_phy_init(struct cal_ctx *ctx) /* 4. Force FORCERXMODE */ val = reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port)); - set_field(&val, CAL_GEN_ENABLE, - CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK); + set_field(&val, 1, CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK); reg_write(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), val); ctx_dbg(3, ctx, "CAL_CSI2_TIMING(%d) = 0x%08x Force RXMODE\n", ctx->csi2_port, @@ -849,8 +846,7 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx) for (i = 0; i < 10; i++) { if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), - CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) == - CAL_GEN_DISABLE) + CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) == 0) break; usleep_range(1000, 1100); } @@ -944,13 +940,13 @@ static void csi2_ppi_enable(struct cal_ctx *ctx) { reg_write(ctx->dev, CAL_CSI2_PPI_CTRL(ctx->csi2_port), BIT(3)); reg_write_field(ctx->dev, CAL_CSI2_PPI_CTRL(ctx->csi2_port), - CAL_GEN_ENABLE, CAL_CSI2_PPI_CTRL_IF_EN_MASK); + 1, CAL_CSI2_PPI_CTRL_IF_EN_MASK); } static void csi2_ppi_disable(struct cal_ctx *ctx) { reg_write_field(ctx->dev, CAL_CSI2_PPI_CTRL(ctx->csi2_port), - CAL_GEN_DISABLE, CAL_CSI2_PPI_CTRL_IF_EN_MASK); + 0, CAL_CSI2_PPI_CTRL_IF_EN_MASK); } static void csi2_ctx_config(struct cal_ctx *ctx) @@ -1025,7 +1021,7 @@ static void pix_proc_config(struct cal_ctx *ctx) set_field(&val, CAL_PIX_PROC_DPCME_BYPASS, CAL_PIX_PROC_DPCME_MASK); set_field(&val, pack, CAL_PIX_PROC_PACK_MASK); set_field(&val, ctx->csi2_port, CAL_PIX_PROC_CPORT_MASK); - set_field(&val, CAL_GEN_ENABLE, CAL_PIX_PROC_EN_MASK); + set_field(&val, 1, CAL_PIX_PROC_EN_MASK); reg_write(ctx->dev, CAL_PIX_PROC(ctx->csi2_port), val); ctx_dbg(3, ctx, "CAL_PIX_PROC(%d) = 0x%08x\n", ctx->csi2_port, reg_read(ctx->dev, CAL_PIX_PROC(ctx->csi2_port))); @@ -1045,7 +1041,7 @@ static void cal_wr_dma_config(struct cal_ctx *ctx, CAL_WR_DMA_CTRL_MODE_MASK); set_field(&val, CAL_WR_DMA_CTRL_PATTERN_LINEAR, CAL_WR_DMA_CTRL_PATTERN_MASK); - set_field(&val, CAL_GEN_ENABLE, CAL_WR_DMA_CTRL_STALL_RD_MASK); + set_field(&val, 1, CAL_WR_DMA_CTRL_STALL_RD_MASK); reg_write(ctx->dev, CAL_WR_DMA_CTRL(ctx->csi2_port), val); ctx_dbg(3, ctx, "CAL_WR_DMA_CTRL(%d) = 0x%08x\n", ctx->csi2_port, reg_read(ctx->dev, CAL_WR_DMA_CTRL(ctx->csi2_port))); diff --git a/drivers/media/platform/ti-vpe/cal_regs.h b/drivers/media/platform/ti-vpe/cal_regs.h index 2d71f1e86e2a..3b3150aaf343 100644 --- a/drivers/media/platform/ti-vpe/cal_regs.h +++ b/drivers/media/platform/ti-vpe/cal_regs.h @@ -100,15 +100,6 @@ /* CAL Control Module Core Camerrx Control register offsets */ #define CM_CTRL_CORE_CAMERRX_CONTROL 0x000 -/********************************************************************* -* Generic value used in various field below -*********************************************************************/ - -#define CAL_GEN_DISABLE 0 -#define CAL_GEN_ENABLE 1 -#define CAL_GEN_FALSE 0 -#define CAL_GEN_TRUE 1 - /********************************************************************* * Field Definition Macros *********************************************************************/ From patchwork Wed Mar 25 12:15:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457629 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5B1501668 for ; 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Wed, 25 Mar 2020 07:16:07 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 10/19] media: ti-vpe: cal: remove useless IRQ defines Date: Wed, 25 Mar 2020 14:15:01 +0200 Message-ID: <20200325121510.25923-11-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Remove a bunch of IRQ defines, of which only CAL_HL_IRQ_ENABLE and CAL_HL_IRQ_CLEAR are used, and these defines only end up obfuscating code. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 8 ++++---- drivers/media/platform/ti-vpe/cal_regs.h | 6 ------ 2 files changed, 4 insertions(+), 10 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 101efe3a1045..e35565fc4bed 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -701,11 +701,11 @@ static void enable_irqs(struct cal_ctx *ctx) /* Enable IRQ_WDMA_END 0/1 */ val = 0; - set_field(&val, CAL_HL_IRQ_ENABLE, CAL_HL_IRQ_MASK(ctx->csi2_port)); + set_field(&val, 1, CAL_HL_IRQ_MASK(ctx->csi2_port)); reg_write(ctx->dev, CAL_HL_IRQENABLE_SET(2), val); /* Enable IRQ_WDMA_START 0/1 */ val = 0; - set_field(&val, CAL_HL_IRQ_ENABLE, CAL_HL_IRQ_MASK(ctx->csi2_port)); + set_field(&val, 1, CAL_HL_IRQ_MASK(ctx->csi2_port)); reg_write(ctx->dev, CAL_HL_IRQENABLE_SET(3), val); /* Todo: Add VC_IRQ and CSI2_COMPLEXIO_IRQ handling */ reg_write(ctx->dev, CAL_CSI2_VC_IRQENABLE(1), 0xFF000000); @@ -723,11 +723,11 @@ static void disable_irqs(struct cal_ctx *ctx) /* Disable IRQ_WDMA_END 0/1 */ val = 0; - set_field(&val, CAL_HL_IRQ_CLEAR, CAL_HL_IRQ_MASK(ctx->csi2_port)); + set_field(&val, 1, CAL_HL_IRQ_MASK(ctx->csi2_port)); reg_write(ctx->dev, CAL_HL_IRQENABLE_CLR(2), val); /* Disable IRQ_WDMA_START 0/1 */ val = 0; - set_field(&val, CAL_HL_IRQ_CLEAR, CAL_HL_IRQ_MASK(ctx->csi2_port)); + set_field(&val, 1, CAL_HL_IRQ_MASK(ctx->csi2_port)); reg_write(ctx->dev, CAL_HL_IRQENABLE_CLR(3), val); /* Todo: Add VC_IRQ and CSI2_COMPLEXIO_IRQ handling */ reg_write(ctx->dev, CAL_CSI2_VC_IRQENABLE(1), 0); diff --git a/drivers/media/platform/ti-vpe/cal_regs.h b/drivers/media/platform/ti-vpe/cal_regs.h index 3b3150aaf343..6a235abc25b1 100644 --- a/drivers/media/platform/ti-vpe/cal_regs.h +++ b/drivers/media/platform/ti-vpe/cal_regs.h @@ -142,12 +142,6 @@ #define CAL_HL_IRQ_EOI_LINE_NUMBER_EOI0 0 #define CAL_HL_IRQ_MASK(m) BIT((m) - 1) -#define CAL_HL_IRQ_NOACTION 0x0 -#define CAL_HL_IRQ_ENABLE 0x1 -#define CAL_HL_IRQ_CLEAR 0x1 -#define CAL_HL_IRQ_DISABLED 0x0 -#define CAL_HL_IRQ_ENABLED 0x1 -#define CAL_HL_IRQ_PENDING 0x1 #define CAL_HL_IRQ_OCPO_ERR_MASK BIT(6) From patchwork Wed Mar 25 12:15:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457631 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2330614B4 for ; Wed, 25 Mar 2020 12:16:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 038442077D for ; Wed, 25 Mar 2020 12:16:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Jc+n9Jjh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727518AbgCYMQO (ORCPT ); Wed, 25 Mar 2020 08:16:14 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:39324 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQO (ORCPT ); Wed, 25 Mar 2020 08:16:14 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGBJZ078532; 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Wed, 25 Mar 2020 07:16:10 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5A085323; Wed, 25 Mar 2020 07:16:09 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 11/19] media: ti-vpe: cal: use reg_write_field Date: Wed, 25 Mar 2020 14:15:02 +0200 Message-ID: <20200325121510.25923-12-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Simplify the code by using reg_write_field() where trivially possible. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 34 ++++++++++++----------------- 1 file changed, 14 insertions(+), 20 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index e35565fc4bed..aacca33813e7 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -761,10 +761,9 @@ static void csi2_phy_init(struct cal_ctx *ctx) camerarx_phy_enable(ctx); /* 2. Reset complex IO - Do not wait for reset completion */ - val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)); - set_field(&val, CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL_OPERATIONAL, - CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL_MASK); - reg_write(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), val); + reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL_OPERATIONAL, + CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL_MASK); ctx_dbg(3, ctx, "CAL_CSI2_COMPLEXIO_CFG(%d) = 0x%08x De-assert Complex IO Reset\n", ctx->csi2_port, reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port))); @@ -786,18 +785,16 @@ static void csi2_phy_init(struct cal_ctx *ctx) reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port))); /* 4. Force FORCERXMODE */ - val = reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port)); - set_field(&val, 1, CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK); - reg_write(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), val); + reg_write_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), + 1, CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK); ctx_dbg(3, ctx, "CAL_CSI2_TIMING(%d) = 0x%08x Force RXMODE\n", ctx->csi2_port, reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port))); /* E. Power up the PHY using the complex IO */ - val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)); - set_field(&val, CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_ON, - CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); - reg_write(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), val); + reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_ON, + CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); /* F. Wait for power up completion */ for (i = 0; i < 10; i++) { @@ -862,13 +859,11 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx) static void csi2_phy_deinit(struct cal_ctx *ctx) { int i; - u32 val; /* Power down the PHY using the complex IO */ - val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)); - set_field(&val, CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_OFF, - CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); - reg_write(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), val); + reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_OFF, + CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); /* Wait for power down completion */ for (i = 0; i < 10; i++) { @@ -885,10 +880,9 @@ static void csi2_phy_deinit(struct cal_ctx *ctx) (i >= 10) ? "(timeout)" : ""); /* Assert Comple IO Reset */ - val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)); - set_field(&val, CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL, - CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL_MASK); - reg_write(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), val); + reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL, + CAL_CSI2_COMPLEXIO_CFG_RESET_CTRL_MASK); /* Wait for power down completion */ for (i = 0; i < 10; i++) { From patchwork Wed Mar 25 12:15:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457633 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B7BE11668 for ; Wed, 25 Mar 2020 12:16:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 98CD62078A for ; Wed, 25 Mar 2020 12:16:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="tyZ9mQsl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727521AbgCYMQQ (ORCPT ); Wed, 25 Mar 2020 08:16:16 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:43374 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQP (ORCPT ); Wed, 25 Mar 2020 08:16:15 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGDS9097370; Wed, 25 Mar 2020 07:16:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138573; bh=u28QRdngDrneF51m+pjDHNgr3IdFrDEKwJpOm12LLDU=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=tyZ9mQslWvB7ivFCyI4XjKwkAqU30YkVool4riKYjJvF3Uds1YUMOquTHApdS5bjJ FVW8mvnkEH5aVL42Ixhy4PRmK4aLULz4Taaca8zp7MXi02In/uzwQGL185y5KYcmr8 aLvCBRa0Wh6xtPg5f4BrUr6IbvpirwunTUhIFr1g= Received: from DFLE103.ent.ti.com (dfle103.ent.ti.com [10.64.6.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCGDcx097426 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:16:13 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:12 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:12 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5B085323; Wed, 25 Mar 2020 07:16:11 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 12/19] media: ti-vpe: cal: cleanup CIO power enable/disable Date: Wed, 25 Mar 2020 14:15:03 +0200 Message-ID: <20200325121510.25923-13-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Move the code to enable and disable ComplexIO power to its own function. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 67 +++++++++++++---------------- 1 file changed, 31 insertions(+), 36 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index aacca33813e7..d8d455576062 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -733,11 +733,39 @@ static void disable_irqs(struct cal_ctx *ctx) reg_write(ctx->dev, CAL_CSI2_VC_IRQENABLE(1), 0); } +static void csi2_cio_power(struct cal_ctx *ctx, bool enable) +{ + u32 target_state; + unsigned int i; + + target_state = enable ? CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_ON : + CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_OFF; + + reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + target_state, CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); + + for (i = 0; i < 10; i++) { + u32 current_state; + + current_state = reg_read_field(ctx->dev, + CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), + CAL_CSI2_COMPLEXIO_CFG_PWR_STATUS_MASK); + + if (current_state == target_state) + break; + + usleep_range(1000, 1100); + } + + if (i == 10) + ctx_err(ctx, "Failed to power %s complexio\n", + enable ? "up" : "down"); +} + static void csi2_phy_config(struct cal_ctx *ctx); static void csi2_phy_init(struct cal_ctx *ctx) { - int i; u32 val; /* Steps @@ -792,23 +820,7 @@ static void csi2_phy_init(struct cal_ctx *ctx) reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port))); /* E. Power up the PHY using the complex IO */ - reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), - CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_ON, - CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); - - /* F. Wait for power up completion */ - for (i = 0; i < 10; i++) { - if (reg_read_field(ctx->dev, - CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), - CAL_CSI2_COMPLEXIO_CFG_PWR_STATUS_MASK) == - CAL_CSI2_COMPLEXIO_CFG_PWR_STATUS_STATE_ON) - break; - usleep_range(1000, 1100); - } - ctx_dbg(3, ctx, "CAL_CSI2_COMPLEXIO_CFG(%d) = 0x%08x Powered UP %s\n", - ctx->csi2_port, - reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)), - (i >= 10) ? "(timeout)" : ""); + csi2_cio_power(ctx, true); } static void csi2_wait_for_phy(struct cal_ctx *ctx) @@ -860,24 +872,7 @@ static void csi2_phy_deinit(struct cal_ctx *ctx) { int i; - /* Power down the PHY using the complex IO */ - reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), - CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_STATE_OFF, - CAL_CSI2_COMPLEXIO_CFG_PWR_CMD_MASK); - - /* Wait for power down completion */ - for (i = 0; i < 10; i++) { - if (reg_read_field(ctx->dev, - CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), - CAL_CSI2_COMPLEXIO_CFG_PWR_STATUS_MASK) == - CAL_CSI2_COMPLEXIO_CFG_PWR_STATUS_STATE_OFF) - break; - usleep_range(1000, 1100); - } - ctx_dbg(3, ctx, "CAL_CSI2_COMPLEXIO_CFG(%d) = 0x%08x Powered Down %s\n", - ctx->csi2_port, - reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)), - (i >= 10) ? "(timeout)" : ""); + csi2_cio_power(ctx, false); /* Assert Comple IO Reset */ reg_write_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), From patchwork Wed Mar 25 12:15:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457635 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A318A1668 for ; Wed, 25 Mar 2020 12:16:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 836D92078D for ; Wed, 25 Mar 2020 12:16:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="cgc48NRs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727525AbgCYMQT (ORCPT ); Wed, 25 Mar 2020 08:16:19 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41822 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727286AbgCYMQS (ORCPT ); Wed, 25 Mar 2020 08:16:18 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGGeG062687; Wed, 25 Mar 2020 07:16:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138576; bh=w0v7NYyTnD4CqiHsIh3n/KUSgdFudGViV0xhO3hkyu4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=cgc48NRs6Ko25kVPT7uUeJ/oIHfhJuy9W1SmVX33/XXWn1bbvr2Yqz3qyWw1yY2a6 7G/KXWWSjVeTA0PGV8KgTwctfyEP79kix6dg5O+XOVciMorqn2IMXlgU9Zzeb+CeZ9 Hl3NHcMH9ADM5Fi2gCk1vULVZrli/kpUJkaLxv0Y= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCGGEe014273 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:16:16 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:14 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:14 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5C085323; Wed, 25 Mar 2020 07:16:12 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 13/19] media: ti-vpe: cal: fix dummy read to phy Date: Wed, 25 Mar 2020 14:15:04 +0200 Message-ID: <20200325121510.25923-14-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org After ComplexIO reset, a dummy read to PHY is needed as per CAL spec to finish the reset. Currently the driver reads a ComplexIO register, not PHY register. Fix this. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index d8d455576062..c7cbb50eb5f9 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -796,8 +796,8 @@ static void csi2_phy_init(struct cal_ctx *ctx) ctx->csi2_port, reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port))); - /* Dummy read to allow SCP to complete */ - val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)); + /* Dummy read to allow SCP reset to complete */ + reg_read(ctx->cc, CAL_CSI2_PHY_REG0); /* 3.A. Program Phy Timing Parameters */ csi2_phy_config(ctx); From patchwork Wed Mar 25 12:15:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457637 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E49FA14B4 for ; Wed, 25 Mar 2020 12:16:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C4C322078D for ; Wed, 25 Mar 2020 12:16:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="YmNjUTWh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727527AbgCYMQT (ORCPT ); Wed, 25 Mar 2020 08:16:19 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:39346 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727504AbgCYMQT (ORCPT ); Wed, 25 Mar 2020 08:16:19 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGGsY078547; Wed, 25 Mar 2020 07:16:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138576; bh=+AiXSNcEljwDOV4dTCEkmqTMwyeTJnvDvmRthmUZTSA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=YmNjUTWhidnw+oQwfSg7Rm4NqDt3U1Mi0rMnYUORwaHfiA7PARHltn7jBtgWegmzp 6DLFQ4yx+AQvXD/r6t3pk3MYJGsjBFkgY8BlBHqzZhw8Gq0Pib3Ae0Rr89QyZwKl/h MbgLbLfSX1EyZwhKe/EbZTjpGgK8kb0Xh3uzxu4Q= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCGG8P014285 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:16:16 -0500 Received: from DLEE103.ent.ti.com (157.170.170.33) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:16 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:16 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5D085323; Wed, 25 Mar 2020 07:16:14 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 14/19] media: ti-vpe: cal: program number of lines properly Date: Wed, 25 Mar 2020 14:15:05 +0200 Message-ID: <20200325121510.25923-15-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org CAL_CSI2_CTX register has LINES field, which, according to the documentation, should be programmed to the number of lines transmitted by the camera. If the number of lines is unknown, it can be set to 0. The driver sets the field to 0 for some reason, even if we know the number of lines. This patch sets the number of lines properly, which will allow the HW to discard extra lines (if the sensor would send such for some reason), and, according to documentation: "This leads to regular video timings and avoids potential artifacts". Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index c7cbb50eb5f9..c124f28435d1 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -955,8 +955,7 @@ static void csi2_ctx_config(struct cal_ctx *ctx) set_field(&val, 0x1, CAL_CSI2_CTX_DT_MASK); /* Virtual Channel from the CSI2 sensor usually 0! */ set_field(&val, ctx->virtual_channel, CAL_CSI2_CTX_VC_MASK); - /* NUM_LINES_PER_FRAME => 0 means auto detect */ - set_field(&val, 0, CAL_CSI2_CTX_LINES_MASK); + set_field(&val, ctx->v_fmt.fmt.pix.height, CAL_CSI2_CTX_LINES_MASK); set_field(&val, CAL_CSI2_CTX_ATT_PIX, CAL_CSI2_CTX_ATT_MASK); set_field(&val, CAL_CSI2_CTX_PACK_MODE_LINE, CAL_CSI2_CTX_PACK_MODE_MASK); From patchwork Wed Mar 25 12:15:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457639 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 15B2F1668 for ; Wed, 25 Mar 2020 12:16:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAAA62077D for ; Wed, 25 Mar 2020 12:16:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="L8EIH1Gm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727537AbgCYMQV (ORCPT ); Wed, 25 Mar 2020 08:16:21 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41834 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727504AbgCYMQV (ORCPT ); Wed, 25 Mar 2020 08:16:21 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGIi0062703; 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Wed, 25 Mar 2020 07:16:17 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5E085323; Wed, 25 Mar 2020 07:16:16 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 15/19] media: ti-vpe: cal: set DMA max seg size Date: Wed, 25 Mar 2020 14:15:06 +0200 Message-ID: <20200325121510.25923-16-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Set DMA max seg size correctly to get rid of warnings on 64 bit platforms: DMA-API: cal 6f03000.cal: mapping sg segment longer than device claims to support [len=720896] [max=65536] Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index c124f28435d1..67954754ffff 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -2315,6 +2315,8 @@ static int cal_probe(struct platform_device *pdev) return -ENODEV; } + vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); + pm_runtime_enable(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev); @@ -2329,6 +2331,8 @@ static int cal_probe(struct platform_device *pdev) return 0; runtime_disable: + vb2_dma_contig_clear_max_seg_size(&pdev->dev); + pm_runtime_disable(&pdev->dev); for (i = 0; i < CAL_NUM_CONTEXT; i++) { ctx = dev->ctx[i]; @@ -2371,6 +2375,8 @@ static int cal_remove(struct platform_device *pdev) pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); + vb2_dma_contig_clear_max_seg_size(&pdev->dev); + return 0; } From patchwork Wed Mar 25 12:15:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457641 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 95E171668 for ; Wed, 25 Mar 2020 12:16:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 769712077D for ; 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Wed, 25 Mar 2020 07:16:20 -0500 Received: from DFLE104.ent.ti.com (10.64.6.25) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:19 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:19 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5F085323; Wed, 25 Mar 2020 07:16:18 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 16/19] media: ti-vpe: cal: move code to separate functions Date: Wed, 25 Mar 2020 14:15:07 +0200 Message-ID: <20200325121510.25923-17-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org To make csi2_wait_for_phy() more readable, move code to separate functions. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 37 +++++++++++++++++++---------- 1 file changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 67954754ffff..e5a319f1fe26 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -823,20 +823,10 @@ static void csi2_phy_init(struct cal_ctx *ctx) csi2_cio_power(ctx, true); } -static void csi2_wait_for_phy(struct cal_ctx *ctx) +static void csi2_wait_complexio_reset(struct cal_ctx *ctx) { int i; - /* Steps - * 2. Wait for completion of reset - * Note if the external sensor is not sending byte clock, - * the reset will timeout - * 4.Force FORCERXMODE - * G. Wait for all enabled lane to reach stop state - * H. Disable pull down using pad control - */ - - /* 2. Wait for reset completion */ for (i = 0; i < 250; i++) { if (reg_read_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), @@ -851,7 +841,12 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx) CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_RESETCOMPLETED) ctx_err(ctx, "Timeout waiting for Complex IO reset done\n"); - /* 4. G. Wait for all enabled lane to reach stop state */ +} + +static void csi2_wait_stop_state(struct cal_ctx *ctx) +{ + int i; + for (i = 0; i < 10; i++) { if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), @@ -863,6 +858,24 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx) if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) != 0) ctx_err(ctx, "Timeout waiting for stop state\n"); +} + +static void csi2_wait_for_phy(struct cal_ctx *ctx) +{ + /* Steps + * 2. Wait for completion of reset + * Note if the external sensor is not sending byte clock, + * the reset will timeout + * 4.Force FORCERXMODE + * G. Wait for all enabled lane to reach stop state + * H. Disable pull down using pad control + */ + + /* 2. Wait for reset completion */ + csi2_wait_complexio_reset(ctx); + + /* 4. G. Wait for all enabled lane to reach stop state */ + csi2_wait_stop_state(ctx); ctx_dbg(1, ctx, "CSI2_%d_REG1 = 0x%08x (Bit(31,28) should be set!)\n", (ctx->csi2_port - 1), reg_read(ctx->cc, CAL_CSI2_PHY_REG1)); From patchwork Wed Mar 25 12:15:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457643 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3A64014B4 for ; Wed, 25 Mar 2020 12:16:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1B0CC2078D for ; Wed, 25 Mar 2020 12:16:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="L1TyDCiU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727540AbgCYMQZ (ORCPT ); Wed, 25 Mar 2020 08:16:25 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:43390 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727504AbgCYMQZ (ORCPT ); Wed, 25 Mar 2020 08:16:25 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGMU5097395; Wed, 25 Mar 2020 07:16:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138582; bh=mTv74yiEaU0YhriQaCy7veJwqmkIo3kyyJLZ5sc8Ocw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=L1TyDCiUm541vT+l9ROggnL61bIAhsxHw5FSpxKOs85hDqy1dAk8XFX4OtMG97/vA l//lHZD9Tu7wSIWyPvoIr1QMdPGYOW4f/Lpjowa4c0w25Aanf/vhgWp6jQk40+OqZV RjDhyvxB1mBjszrNecivYJoY7i1mqqhjFuGj4QHo= Received: from DLEE101.ent.ti.com (dlee101.ent.ti.com [157.170.170.31]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02PCGMH9088093 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Mar 2020 07:16:22 -0500 Received: from DLEE101.ent.ti.com (157.170.170.31) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:21 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:21 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5G085323; Wed, 25 Mar 2020 07:16:20 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 17/19] media: ti-vpe: cal: improve wait for CIO resetdone Date: Wed, 25 Mar 2020 14:15:08 +0200 Message-ID: <20200325121510.25923-18-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Sometimes there is a timeout when waiting for the 'ComplexIO Reset Done'. Testing shows that sometimes we need to wait more than what the current code does. It is not clear how long this wait can be, but it is based on how quickly the sensor provides a valid clock, and how quickly CAL syncs to it. Change the code to make it more obvious how long we'll wait, and set a wider range for usleep_range. Increase the timeout to 750ms. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index e5a319f1fe26..eb8eeb75879d 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -825,15 +825,16 @@ static void csi2_phy_init(struct cal_ctx *ctx) static void csi2_wait_complexio_reset(struct cal_ctx *ctx) { - int i; + unsigned long timeout; - for (i = 0; i < 250; i++) { + timeout = jiffies + msecs_to_jiffies(750); + while (time_before(jiffies, timeout)) { if (reg_read_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_MASK) == CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_RESETCOMPLETED) break; - usleep_range(1000, 1100); + usleep_range(500, 5000); } if (reg_read_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), From patchwork Wed Mar 25 12:15:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457645 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6C52E14B4 for ; Wed, 25 Mar 2020 12:16:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4CB4F2077D for ; Wed, 25 Mar 2020 12:16:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="VzRMa3dv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727547AbgCYMQ0 (ORCPT ); Wed, 25 Mar 2020 08:16:26 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:39366 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727504AbgCYMQ0 (ORCPT ); Wed, 25 Mar 2020 08:16:26 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGNZj078573; Wed, 25 Mar 2020 07:16:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138583; bh=hxltfGX2tRMEGP/hcEDWm5TkAPo7noMtfChzZ+2eqrs=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=VzRMa3dv88uYC+Jwch98M5W+ZRXWEmRiKPoveMFYDhXochRY/yQYs4EOIl/X9zNB3 x6wnfOG0dIDdHoY34leQViEsPhzFx3j1Qh69uJkaRfVdR3c03CzcbCJW/XBk+h8qax QMv6yWuQ0gWvcgh+JlbDZSmOo5msoREYpLj7LNAY= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGNAH003813; Wed, 25 Mar 2020 07:16:23 -0500 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:23 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:23 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5H085323; Wed, 25 Mar 2020 07:16:21 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 18/19] media: ti-vpe: cal: improve wait for stop-state Date: Wed, 25 Mar 2020 14:15:09 +0200 Message-ID: <20200325121510.25923-19-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Sometimes there is a timeout when waiting for the Stop-State. Testing shows that sometimes we need to wait more than what the current code does. It is not clear how long this wait can be, but it is based on how quickly the sensor provides a valid clock, and how quickly CAL syncs to it. Change the code to make it more obvious how long we'll wait, and set a wider range for usleep_range. Increase the timeout to 750ms. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Benoit Parrot --- drivers/media/platform/ti-vpe/cal.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index eb8eeb75879d..0f90078ee8c2 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -846,14 +846,15 @@ static void csi2_wait_complexio_reset(struct cal_ctx *ctx) static void csi2_wait_stop_state(struct cal_ctx *ctx) { - int i; + unsigned long timeout; - for (i = 0; i < 10; i++) { + timeout = jiffies + msecs_to_jiffies(750); + while (time_before(jiffies, timeout)) { if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) == 0) break; - usleep_range(1000, 1100); + usleep_range(500, 5000); } if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), From patchwork Wed Mar 25 12:15:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11457647 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E4AE31668 for ; Wed, 25 Mar 2020 12:16:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C4E1B2077D for ; Wed, 25 Mar 2020 12:16:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="kZyVo3kU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727137AbgCYMQ2 (ORCPT ); Wed, 25 Mar 2020 08:16:28 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41844 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727504AbgCYMQ2 (ORCPT ); Wed, 25 Mar 2020 08:16:28 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGPoa062726; Wed, 25 Mar 2020 07:16:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1585138585; bh=p97UI6EDj7hgYrW1qXw0+zf9DM7cjNU4Hx4vrT+fQf4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=kZyVo3kUstCvGLI+SUx6JeW408cGBmor72jiLwwnpCCxsagUs3tJt/JATb1enO6Gw tOEqxqCGjFRzTQD0mnAhWk04j3V+09ZFnSgP7HaDIE+YJMnNpS87joTz3rfB7SSFR1 4QD1vN27JnTwCnFST3aj3v/Ra5FpcSqao1o2NOC4= Received: from DLEE107.ent.ti.com (dlee107.ent.ti.com [157.170.170.37]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCGPpV003847; Wed, 25 Mar 2020 07:16:25 -0500 Received: from DLEE102.ent.ti.com (157.170.170.32) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 25 Mar 2020 07:16:24 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 25 Mar 2020 07:16:24 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02PCFm5I085323; Wed, 25 Mar 2020 07:16:23 -0500 From: Tomi Valkeinen To: , Benoit Parrot , Laurent Pinchart , Hans Verkuil CC: Mauro Carvalho Chehab , Tomi Valkeinen Subject: [PATCH v3 19/19] media: ti-vpe: cal: fix stop state timeout Date: Wed, 25 Mar 2020 14:15:10 +0200 Message-ID: <20200325121510.25923-20-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com> References: <20200325121510.25923-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The stop-state timeout needs to be over 100us as per CSI spec. With the CAL fclk of 266 MHZ on DRA76, with the current value the driver uses, the timeout is 24us. Too small timeout will cause failure to enable the streaming. Also, the fclk can be different on other SoCs, as is the case with AM65x where the fclk is 250 MHz. This patch fixes the timeout by calculating it correctly based on the fclk rate. Signed-off-by: Tomi Valkeinen Tested-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/media/platform/ti-vpe/cal.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 0f90078ee8c2..d935c628597b 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -6,6 +6,7 @@ * Benoit Parrot, */ +#include #include #include #include @@ -340,6 +341,7 @@ static const struct cal_data am654_cal_data = { * all instances. */ struct cal_dev { + struct clk *fclk; int irq; void __iomem *base; struct resource *res; @@ -767,6 +769,7 @@ static void csi2_phy_config(struct cal_ctx *ctx); static void csi2_phy_init(struct cal_ctx *ctx) { u32 val; + u32 sscounter; /* Steps * 1. Configure D-PHY mode and enable required lanes @@ -803,10 +806,20 @@ static void csi2_phy_init(struct cal_ctx *ctx) csi2_phy_config(ctx); /* 3.B. Program Stop States */ + /* + * The stop-state-counter is based on fclk cycles, and we always use + * the x16 and x4 settings, so stop-state-timeout = + * fclk-cycle * 16 * 4 * counter. + * + * Stop-state-timeout must be more than 100us as per CSI2 spec, so we + * calculate a timeout that's 100us (rounding up). + */ + sscounter = DIV_ROUND_UP(clk_get_rate(ctx->dev->fclk), 10000 * 16 * 4); + val = reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port)); set_field(&val, 1, CAL_CSI2_TIMING_STOP_STATE_X16_IO1_MASK); - set_field(&val, 0, CAL_CSI2_TIMING_STOP_STATE_X4_IO1_MASK); - set_field(&val, 407, CAL_CSI2_TIMING_STOP_STATE_COUNTER_IO1_MASK); + set_field(&val, 1, CAL_CSI2_TIMING_STOP_STATE_X4_IO1_MASK); + set_field(&val, sscounter, CAL_CSI2_TIMING_STOP_STATE_COUNTER_IO1_MASK); reg_write(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), val); ctx_dbg(3, ctx, "CAL_CSI2_TIMING(%d) = 0x%08x Stop States\n", ctx->csi2_port, @@ -2257,6 +2270,12 @@ static int cal_probe(struct platform_device *pdev) /* save pdev pointer */ dev->pdev = pdev; + dev->fclk = devm_clk_get(&pdev->dev, "fck"); + if (IS_ERR(dev->fclk)) { + dev_err(&pdev->dev, "cannot get CAL fclk\n"); + return PTR_ERR(dev->fclk); + } + syscon_camerrx = syscon_regmap_lookup_by_phandle(parent, "ti,camerrx-control"); ret = of_property_read_u32_index(parent, "ti,camerrx-control", 1,