From patchwork Thu Aug 17 14:38:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 13356616 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 DE065C3DA45 for ; Thu, 17 Aug 2023 14:39:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352047AbjHQOit (ORCPT ); Thu, 17 Aug 2023 10:38:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352049AbjHQOia (ORCPT ); Thu, 17 Aug 2023 10:38:30 -0400 Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [IPv6:2a00:1450:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35A0A30F0 for ; Thu, 17 Aug 2023 07:38:27 -0700 (PDT) Received: by mail-wr1-x430.google.com with SMTP id ffacd0b85a97d-307d20548adso6824895f8f.0 for ; Thu, 17 Aug 2023 07:38:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692283105; x=1692887905; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0x4ozwHcR60yAzmxM62laa6YE67TcNzLtskHx94XiuY=; b=lnyPESLEq5waRKBCmfHRTRSDiJMaMK6x84qwzZBqxBrlQlgEecYgDNUzyVRHU72Pg/ 2aPQDwhnHBuv3Yd6IeEH0Q9Vr/edZk7Rzn6eLZKjP2HamUkZZpqDXTFpwm1Pu/mRp6LG 7zLCjMN9awxCG5Lkbqvxke3FQGsj+5BuppVu+3N33Th6hFIq0vxe+bBrCnziko1SWe2U q+F5JqvcfUV4QvWGeZfJPIKYEQB/F5ry7lOr393kEElUzj+lSLUbWTWzOwiAyopDyKTx yuLQeaVIxR2NfgLPb+gKHPi8ZXZ41TG+uebwxSudfrzWexPoNT3siJrWgFQNYEUJWISj OBsQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692283105; x=1692887905; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0x4ozwHcR60yAzmxM62laa6YE67TcNzLtskHx94XiuY=; b=VH1YxWEzHdRuIxbizfsEURX6j/Ux6d8erWrFYR8+6s3m/NLKDGtDHdLJcpfA0ZSrEB EIbFPkjzayacQUQ38QwFZJl//Fb4RiuPxlej1V8Gh+4H55GaEi5BieFUNoQQtYzCz6/L OO8jfcTJxAhYGT5zTZbKcdL0VHLblMZYwCK10GGv5+dDWIk0WX5TtAkBujmGUvmUm0Q/ LwuEz8gts0514lXOopCKpIYvCAxmdxd3+v30GeJ98dKgBGHqYnoOaKU4DUL1ShLHcqHr mVscUBs4yUDGEgllccX07UYtzn1bdNgKQwBj1MYTNbTxtEMMwlcy7e3sqE3nT5VEB8Bu 7+bQ== X-Gm-Message-State: AOJu0YykvaxJHURXh03TC+PW5/Pqmk6t0wUN6H3o52IJqHcQ16shJNQA NYXa7VUiROskqTO7ivBE4TVvLQ== X-Google-Smtp-Source: AGHT+IE6dL85QFPAMP7CMOzgNNj5rJDXYOaLhcZvtdN/L8GOsqINKR40uZwxwf9JlscHOfNzadSM9g== X-Received: by 2002:a5d:4391:0:b0:319:6d03:13ae with SMTP id i17-20020a5d4391000000b003196d0313aemr3627203wrq.55.1692283105724; Thu, 17 Aug 2023 07:38:25 -0700 (PDT) Received: from sagittarius-a.chello.ie (188-141-3-169.dynamic.upc.ie. [188.141.3.169]) by smtp.gmail.com with ESMTPSA id i8-20020a5d4388000000b0030647449730sm25218232wrq.74.2023.08.17.07.38.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Aug 2023 07:38:25 -0700 (PDT) From: Bryan O'Donoghue To: rfoss@kernel.org, todor.too@gmail.com, bryan.odonoghue@linaro.org, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, mchehab@kernel.org, hverkuil-cisco@xs4all.nl, laurent.pinchart@ideasonboard.com, sakari.ailus@linux.intel.com, andrey.konovalov@linaro.org Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 08/13] media: qcom: camss: Untangle if/else spaghetti in camss Date: Thu, 17 Aug 2023 15:38:07 +0100 Message-ID: <20230817143812.677554-9-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230817143812.677554-1-bryan.odonoghue@linaro.org> References: <20230817143812.677554-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org I refuse to add another SoC to this convoluted if/else structure. By the time we added in a third SoC we ought to have transitioned these control flow strutures to switches. Adding in another Soc or two will make some of these if statements into five clause behemoths. Introduce switches in the obvious places to despaghetiify. Signed-off-by: Bryan O'Donoghue --- .../media/platform/qcom/camss/camss-csid.c | 16 ++++--- .../media/platform/qcom/camss/camss-csiphy.c | 22 ++++++--- drivers/media/platform/qcom/camss/camss-vfe.c | 45 +++++++++++++------ .../media/platform/qcom/camss/camss-video.c | 16 ++++--- 4 files changed, 68 insertions(+), 31 deletions(-) diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c index 7ff450039ec3f..9e91d9414bebc 100644 --- a/drivers/media/platform/qcom/camss/camss-csid.c +++ b/drivers/media/platform/qcom/camss/camss-csid.c @@ -576,15 +576,19 @@ int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid, csid->camss = camss; csid->id = id; - if (camss->res->version == CAMSS_8x16) { + switch (camss->res->version) { + case CAMSS_8x16: csid->ops = &csid_ops_4_1; - } else if (camss->res->version == CAMSS_8x96 || - camss->res->version == CAMSS_660) { + break; + case CAMSS_8x96: + case CAMSS_660: csid->ops = &csid_ops_4_7; - } else if (camss->res->version == CAMSS_845 || - camss->res->version == CAMSS_8250) { + break; + case CAMSS_845: + case CAMSS_8250: csid->ops = &csid_ops_gen2; - } else { + break; + default: return -EINVAL; } csid->ops->subdev_init(csid); diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c index 593aec5c97bc2..0e8c2a59ea241 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy.c @@ -557,21 +557,31 @@ int msm_csiphy_subdev_init(struct camss *camss, csiphy->id = id; csiphy->cfg.combo_mode = 0; - if (camss->res->version == CAMSS_8x16) { + switch (camss->res->version) { + case CAMSS_8x16: + { csiphy->ops = &csiphy_ops_2ph_1_0; csiphy->formats = csiphy_formats_8x16; csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x16); - } else if (camss->res->version == CAMSS_8x96 || - camss->res->version == CAMSS_660) { + break; + } + case CAMSS_8x96: + case CAMSS_660: + { csiphy->ops = &csiphy_ops_3ph_1_0; csiphy->formats = csiphy_formats_8x96; csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x96); - } else if (camss->res->version == CAMSS_845 || - camss->res->version == CAMSS_8250) { + break; + } + case CAMSS_845: + case CAMSS_8250: + { csiphy->ops = &csiphy_ops_3ph_1_0; csiphy->formats = csiphy_formats_sdm845; csiphy->nformats = ARRAY_SIZE(csiphy_formats_sdm845); - } else { + break; + } + default: return -EINVAL; } diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c index b789b3b2e4cfd..8f48401e31cd3 100644 --- a/drivers/media/platform/qcom/camss/camss-vfe.c +++ b/drivers/media/platform/qcom/camss/camss-vfe.c @@ -170,7 +170,9 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code, { struct vfe_device *vfe = to_vfe(line); - if (vfe->camss->res->version == CAMSS_8x16) + switch (vfe->camss->res->version) { + case CAMSS_8x16: + { switch (sink_code) { case MEDIA_BUS_FMT_YUYV8_1X16: { @@ -218,10 +220,13 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code, return sink_code; } - else if (vfe->camss->res->version == CAMSS_8x96 || - vfe->camss->res->version == CAMSS_660 || - vfe->camss->res->version == CAMSS_845 || - vfe->camss->res->version == CAMSS_8250) + break; + } + case CAMSS_8x96: + case CAMSS_660: + case CAMSS_845: + case CAMSS_8250: + { switch (sink_code) { case MEDIA_BUS_FMT_YUYV8_1X16: { @@ -281,8 +286,12 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code, return sink_code; } - else - return 0; + break; + } + default: + break; + } + return 0; } int vfe_reset(struct vfe_device *vfe) @@ -1397,7 +1406,9 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe, init_completion(&l->output.sof); init_completion(&l->output.reg_update); - if (camss->res->version == CAMSS_8x16) { + switch (camss->res->version) { + case CAMSS_8x16: + { if (i == VFE_LINE_PIX) { l->formats = formats_pix_8x16; l->nformats = ARRAY_SIZE(formats_pix_8x16); @@ -1405,8 +1416,11 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe, l->formats = formats_rdi_8x16; l->nformats = ARRAY_SIZE(formats_rdi_8x16); } - } else if (camss->res->version == CAMSS_8x96 || - camss->res->version == CAMSS_660) { + break; + } + case CAMSS_8x96: + case CAMSS_660: + { if (i == VFE_LINE_PIX) { l->formats = formats_pix_8x96; l->nformats = ARRAY_SIZE(formats_pix_8x96); @@ -1414,11 +1428,16 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe, l->formats = formats_rdi_8x96; l->nformats = ARRAY_SIZE(formats_rdi_8x96); } - } else if (camss->res->version == CAMSS_845 || - camss->res->version == CAMSS_8250) { + break; + } + case CAMSS_845: + case CAMSS_8250: + { l->formats = formats_rdi_845; l->nformats = ARRAY_SIZE(formats_rdi_845); - } else { + break; + } + default: return -EINVAL; } } diff --git a/drivers/media/platform/qcom/camss/camss-video.c b/drivers/media/platform/qcom/camss/camss-video.c index 46a89b5f6c171..e695724437ce1 100644 --- a/drivers/media/platform/qcom/camss/camss-video.c +++ b/drivers/media/platform/qcom/camss/camss-video.c @@ -1006,7 +1006,8 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev, mutex_init(&video->lock); - if (video->camss->res->version == CAMSS_8x16) { + switch (video->camss->res->version) { + case CAMSS_8x16: if (is_pix) { video->formats = formats_pix_8x16; video->nformats = ARRAY_SIZE(formats_pix_8x16); @@ -1014,8 +1015,9 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev, video->formats = formats_rdi_8x16; video->nformats = ARRAY_SIZE(formats_rdi_8x16); } - } else if (video->camss->res->version == CAMSS_8x96 || - video->camss->res->version == CAMSS_660) { + break; + case CAMSS_8x96: + case CAMSS_660: if (is_pix) { video->formats = formats_pix_8x96; video->nformats = ARRAY_SIZE(formats_pix_8x96); @@ -1023,11 +1025,13 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev, video->formats = formats_rdi_8x96; video->nformats = ARRAY_SIZE(formats_rdi_8x96); } - } else if (video->camss->res->version == CAMSS_845 || - video->camss->res->version == CAMSS_8250) { + break; + case CAMSS_845: + case CAMSS_8250: video->formats = formats_rdi_845; video->nformats = ARRAY_SIZE(formats_rdi_845); - } else { + break; + default: ret = -EINVAL; goto error_video_register; }