From nobody Tue Apr 7 16:44:47 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 457C0C43217 for ; Thu, 3 Nov 2022 16:32:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232224AbiKCQc2 (ORCPT ); Thu, 3 Nov 2022 12:32:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231828AbiKCQbr (ORCPT ); Thu, 3 Nov 2022 12:31:47 -0400 Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 355B81B9F6; Thu, 3 Nov 2022 09:31:42 -0700 (PDT) Received: (Authenticated sender: paul.kocialkowski@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 7484724000D; Thu, 3 Nov 2022 16:31:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1667493100; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=LQyqzHTL++RGaItex4uVeobLkyhPnz1r6d4Sw3VlG+M=; b=DsYbmGVweA6LYsiGLeYmO6Ay8b/UN101pqYX+kYOePUlCxVPrWI7nf+U0xMfUgOaLFhTHX 9pahhTpkylnSsvnWjePrKlw/kkG+1/A/YWagiZueTQT+5nmZY3OQLV7+/Yy44beuxmOYmW U0pnp0Hx2H9MgOl6DkjDhG7J7/ND3/rV+bAMvcTqVGA3+6B6Xp1h98mCo8aLrDdaLAKFMR MiuyFtzDmnriRjoAY0PYKHwIaoAiw5XUECmxgF+fFWfNWlYHjBA/EsYLOQzA8Z3cr9MXKC DZqrzqwYxpGu0w0R8HqRE9YWAfPY+Q9GqV1DkuYw49KM7Hy5THMUUMCkZJQz2g== From: Paul Kocialkowski To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Cc: Yong Deng , Paul Kocialkowski , Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Laurent Pinchart , Maxime Ripard , Thomas Petazzoni Subject: [PATCH v7 06/28] media: sun6i-csi: Implement address configuration without indirection Date: Thu, 3 Nov 2022 17:30:51 +0100 Message-Id: <20221103163113.245462-7-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221103163113.245462-1-paul.kocialkowski@bootlin.com> References: <20221103163113.245462-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Instead of calculating the planar_offset at one point and using it later in a dedicated function, reimplement address configuration with v4l2 format info in the buffer_configure function. Signed-off-by: Paul Kocialkowski Acked-by: Jernej Skrabec --- .../platform/sunxi/sun6i-csi/sun6i_csi.c | 27 ---------------- .../platform/sunxi/sun6i-csi/sun6i_csi.h | 10 ------ .../sunxi/sun6i-csi/sun6i_csi_capture.c | 32 ++++++++++++++++++- 3 files changed, 31 insertions(+), 38 deletions(-) diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/m= edia/platform/sunxi/sun6i-csi/sun6i_csi.c index 79d4b00d1fcd..5e03069bd4c3 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -463,7 +463,6 @@ static void sun6i_csi_set_window(struct sun6i_csi_devic= e *csi_dev) struct sun6i_csi_config *config =3D &csi_dev->config; u32 bytesperline_y; u32 bytesperline_c; - int *planar_offset =3D csi_dev->planar_offset; u32 width =3D config->width; u32 height =3D config->height; u32 hor_len =3D width; @@ -488,7 +487,6 @@ static void sun6i_csi_set_window(struct sun6i_csi_devic= e *csi_dev) SUN6I_CSI_CH_VSIZE_LEN(height) | SUN6I_CSI_CH_VSIZE_START(0)); =20 - planar_offset[0] =3D 0; switch (config->pixelformat) { case V4L2_PIX_FMT_NV12_16L16: case V4L2_PIX_FMT_NV12: @@ -497,23 +495,15 @@ static void sun6i_csi_set_window(struct sun6i_csi_dev= ice *csi_dev) case V4L2_PIX_FMT_NV61: bytesperline_y =3D width; bytesperline_c =3D width; - planar_offset[1] =3D bytesperline_y * height; - planar_offset[2] =3D -1; break; case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: bytesperline_y =3D width; bytesperline_c =3D width / 2; - planar_offset[1] =3D bytesperline_y * height; - planar_offset[2] =3D planar_offset[1] + - bytesperline_c * height / 2; break; case V4L2_PIX_FMT_YUV422P: bytesperline_y =3D width; bytesperline_c =3D width / 2; - planar_offset[1] =3D bytesperline_y * height; - planar_offset[2] =3D planar_offset[1] + - bytesperline_c * height; break; default: /* raw */ dev_dbg(csi_dev->dev, @@ -522,8 +512,6 @@ static void sun6i_csi_set_window(struct sun6i_csi_devic= e *csi_dev) bytesperline_y =3D (sun6i_csi_get_bpp(config->pixelformat) * config->width) / 8; bytesperline_c =3D 0; - planar_offset[1] =3D -1; - planar_offset[2] =3D -1; break; } =20 @@ -547,21 +535,6 @@ int sun6i_csi_update_config(struct sun6i_csi_device *c= si_dev, return 0; } =20 -void sun6i_csi_update_buf_addr(struct sun6i_csi_device *csi_dev, - dma_addr_t addr) -{ - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_FIFO0_ADDR_REG, - SUN6I_CSI_ADDR_VALUE(addr + csi_dev->planar_offset[0])); - if (csi_dev->planar_offset[1] !=3D -1) - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_FIFO1_ADDR_REG, - SUN6I_CSI_ADDR_VALUE(addr + - csi_dev->planar_offset[1])); - if (csi_dev->planar_offset[2] !=3D -1) - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_FIFO2_ADDR_REG, - SUN6I_CSI_ADDR_VALUE(addr + - csi_dev->planar_offset[2])); -} - void sun6i_csi_set_stream(struct sun6i_csi_device *csi_dev, bool enable) { struct regmap *regmap =3D csi_dev->regmap; diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h b/drivers/m= edia/platform/sunxi/sun6i-csi/sun6i_csi.h index 6c0110e4b3ab..75867cde7985 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h @@ -60,8 +60,6 @@ struct sun6i_csi_device { struct clk *clock_mod; struct clk *clock_ram; struct reset_control *reset; - - int planar_offset[3]; }; =20 struct sun6i_csi_variant { @@ -98,14 +96,6 @@ int sun6i_csi_set_power(struct sun6i_csi_device *csi_dev= , bool enable); int sun6i_csi_update_config(struct sun6i_csi_device *csi_dev, struct sun6i_csi_config *config); =20 -/** - * sun6i_csi_update_buf_addr() - update the csi frame buffer address - * @csi_dev: pointer to the csi device - * @addr: frame buffer's physical address - */ -void sun6i_csi_update_buf_addr(struct sun6i_csi_device *csi_dev, - dma_addr_t addr); - /** * sun6i_csi_set_stream() - start/stop csi streaming * @csi_dev: pointer to the csi device diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/d= rivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c index a3c3bbf6a506..cb23dcdf250f 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c @@ -6,6 +6,7 @@ */ =20 #include +#include =20 #include #include @@ -16,6 +17,7 @@ =20 #include "sun6i_csi.h" #include "sun6i_csi_capture.h" +#include "sun6i_csi_reg.h" =20 /* This is got from BSP sources. */ #define MIN_WIDTH (32) @@ -109,13 +111,41 @@ static void sun6i_csi_capture_buffer_configure(struct sun6i_csi_device *csi_dev, struct sun6i_csi_buffer *csi_buffer) { + struct regmap *regmap =3D csi_dev->regmap; + const struct v4l2_format_info *info; struct vb2_buffer *vb2_buffer; + unsigned int width, height; dma_addr_t address; + u32 pixelformat; =20 vb2_buffer =3D &csi_buffer->v4l2_buffer.vb2_buf; address =3D vb2_dma_contig_plane_dma_addr(vb2_buffer, 0); =20 - sun6i_csi_update_buf_addr(csi_dev, address); + regmap_write(regmap, SUN6I_CSI_CH_FIFO0_ADDR_REG, + SUN6I_CSI_ADDR_VALUE(address)); + + sun6i_csi_capture_dimensions(csi_dev, &width, &height); + sun6i_csi_capture_format(csi_dev, &pixelformat, NULL); + + info =3D v4l2_format_info(pixelformat); + /* Unsupported formats are single-plane, so we can stop here. */ + if (!info) + return; + + if (info->comp_planes > 1) { + address +=3D info->bpp[0] * width * height; + + regmap_write(regmap, SUN6I_CSI_CH_FIFO1_ADDR_REG, + SUN6I_CSI_ADDR_VALUE(address)); + } + + if (info->comp_planes > 2) { + address +=3D info->bpp[1] * DIV_ROUND_UP(width, info->hdiv) * + DIV_ROUND_UP(height, info->vdiv); + + regmap_write(regmap, SUN6I_CSI_CH_FIFO2_ADDR_REG, + SUN6I_CSI_ADDR_VALUE(address)); + } } =20 static void sun6i_csi_capture_configure(struct sun6i_csi_device *csi_dev) --=20 2.38.1