From patchwork Wed Jan 8 11:52:18 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Yan X-Patchwork-Id: 13930692 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 36A5FE77188 for ; Wed, 8 Jan 2025 11:53:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AA3AB10E88A; Wed, 8 Jan 2025 11:53:27 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=163.com header.i=@163.com header.b="Xs18ly4T"; dkim-atps=neutral Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) by gabe.freedesktop.org (Postfix) with ESMTP id A880510E887 for ; Wed, 8 Jan 2025 11:53:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-ID:MIME-Version; bh=6OdaZ 0sAspcn1/scGkVB+Ph2WVMvO525S4sSoRNZBI8=; b=Xs18ly4TGtrprgPHFhsIs VhMJr4f6d3aZbWppqBk49c5P+IimW0CdtcgwNAEkqYo2ixjP2TnizVG/JefCOCzw mssYrVijj6JxbsKE/T7GFTxB0sUCZNtcPtd9K1j3Seovyk63uNEi/tjxorruS7A4 ccg9ufy8KP7qZzY9EkaJBs= Received: from ProDesk.. (unknown []) by gzga-smtp-mtada-g1-4 (Coremail) with SMTP id _____wDHpyUCZ35n8Xn7EQ--.26804S3; Wed, 08 Jan 2025 19:52:41 +0800 (CST) From: Andy Yan To: heiko@sntech.de Cc: hjc@rock-chips.com, krzk+dt@kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, derek.foreman@collabora.com, detlev.casanova@collabora.com, daniel@fooishbar.org, robh@kernel.org, Andy Yan Subject: [PATCH v9 01/11] drm/rockchip: vop2: use devm_regmap_field_alloc for cluster-regs Date: Wed, 8 Jan 2025 19:52:18 +0800 Message-ID: <20250108115233.17729-2-andyshrk@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250108115233.17729-1-andyshrk@163.com> References: <20250108115233.17729-1-andyshrk@163.com> MIME-Version: 1.0 X-CM-TRANSID: _____wDHpyUCZ35n8Xn7EQ--.26804S3 X-Coremail-Antispam: 1Uf129KBjvJXoWxGFW7GFWUWrykJr4fGF17Wrg_yoWrZr4xpF 4rCwnxuF45Grn29rykAr1DAF1Fk397ta1rCFn7uwnI9rnFgrZ7C3WDCw1jyrs0kryv9FZr tFs8t3y3ua4Ygr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UWc_fUUUUU= X-Originating-IP: [58.22.7.114] X-CM-SenderInfo: 5dqg52xkunqiywtou0bp/1tbiqBLOXmd+X+etDgAAso X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Heiko Stuebner Right now vop2_cluster_init() copies the base vop2_cluster_regs and adapts the reg value with the current window's offset before adding the fields to the regmap. This conflicts with the notion of reg_fields being const, see https://lore.kernel.org/all/20240706-regmap-const-structs-v1-1-d08c776da787@weissschuh.net/ for reference, which now causes checkpatch to actually warn about that. So instead of creating one big copy and changing it afterwards, add the reg_fields individually using devm_regmap_field_alloc(). Functional it is the same, just that the reg_field we're handling can stay const. Signed-off-by: Heiko Stuebner Signed-off-by: Andy Yan --- (no changes since v1) drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 66 +++++++++----------- 1 file changed, 31 insertions(+), 35 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c index 8e065199acfc..327ead907d44 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c @@ -3372,7 +3372,7 @@ static int vop2_find_rgb_encoder(struct vop2 *vop2) return -ENOENT; } -static struct reg_field vop2_cluster_regs[VOP2_WIN_MAX_REG] = { +static const struct reg_field vop2_cluster_regs[VOP2_WIN_MAX_REG] = { [VOP2_WIN_ENABLE] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 0, 0), [VOP2_WIN_FORMAT] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 1, 5), [VOP2_WIN_RB_SWAP] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 14, 14), @@ -3443,28 +3443,26 @@ static struct reg_field vop2_cluster_regs[VOP2_WIN_MAX_REG] = { static int vop2_cluster_init(struct vop2_win *win) { struct vop2 *vop2 = win->vop2; - struct reg_field *cluster_regs; - int ret, i; - - cluster_regs = kmemdup(vop2_cluster_regs, sizeof(vop2_cluster_regs), - GFP_KERNEL); - if (!cluster_regs) - return -ENOMEM; - - for (i = 0; i < ARRAY_SIZE(vop2_cluster_regs); i++) - if (cluster_regs[i].reg != 0xffffffff) - cluster_regs[i].reg += win->offset; + int i; - ret = devm_regmap_field_bulk_alloc(vop2->dev, vop2->map, win->reg, - cluster_regs, - ARRAY_SIZE(vop2_cluster_regs)); + for (i = 0; i < ARRAY_SIZE(vop2_cluster_regs); i++) { + const struct reg_field field = { + .reg = (vop2_cluster_regs[i].reg != 0xffffffff) ? + vop2_cluster_regs[i].reg + win->offset : + vop2_cluster_regs[i].reg, + .lsb = vop2_cluster_regs[i].lsb, + .msb = vop2_cluster_regs[i].msb + }; - kfree(cluster_regs); + win->reg[i] = devm_regmap_field_alloc(vop2->dev, vop2->map, field); + if (IS_ERR(win->reg[i])) + return PTR_ERR(win->reg[i]); + } - return ret; + return 0; }; -static struct reg_field vop2_esmart_regs[VOP2_WIN_MAX_REG] = { +static const struct reg_field vop2_esmart_regs[VOP2_WIN_MAX_REG] = { [VOP2_WIN_ENABLE] = REG_FIELD(RK3568_SMART_REGION0_CTRL, 0, 0), [VOP2_WIN_FORMAT] = REG_FIELD(RK3568_SMART_REGION0_CTRL, 1, 5), [VOP2_WIN_DITHER_UP] = REG_FIELD(RK3568_SMART_REGION0_CTRL, 12, 12), @@ -3531,26 +3529,24 @@ static struct reg_field vop2_esmart_regs[VOP2_WIN_MAX_REG] = { static int vop2_esmart_init(struct vop2_win *win) { struct vop2 *vop2 = win->vop2; - struct reg_field *esmart_regs; - int ret, i; - - esmart_regs = kmemdup(vop2_esmart_regs, sizeof(vop2_esmart_regs), - GFP_KERNEL); - if (!esmart_regs) - return -ENOMEM; - - for (i = 0; i < ARRAY_SIZE(vop2_esmart_regs); i++) - if (esmart_regs[i].reg != 0xffffffff) - esmart_regs[i].reg += win->offset; + int i; - ret = devm_regmap_field_bulk_alloc(vop2->dev, vop2->map, win->reg, - esmart_regs, - ARRAY_SIZE(vop2_esmart_regs)); + for (i = 0; i < ARRAY_SIZE(vop2_esmart_regs); i++) { + const struct reg_field field = { + .reg = (vop2_esmart_regs[i].reg != 0xffffffff) ? + vop2_esmart_regs[i].reg + win->offset : + vop2_esmart_regs[i].reg, + .lsb = vop2_esmart_regs[i].lsb, + .msb = vop2_esmart_regs[i].msb + }; - kfree(esmart_regs); + win->reg[i] = devm_regmap_field_alloc(vop2->dev, vop2->map, field); + if (IS_ERR(win->reg[i])) + return PTR_ERR(win->reg[i]); + } - return ret; -}; + return 0; +} static int vop2_win_init(struct vop2 *vop2) {