From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D183C2E62B7 for ; Tue, 23 Sep 2025 14:40:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758638418; cv=none; b=ijdqLQw8NAQ44hs9wqwHSOjZpDdXfhqE/nkJwJ3AXP7tH2iKgEP2kwolhflPwkYiAgCuyW71DvrCFpBl5o7qrPBSG7pw1P2ir9iRzYMR0aQqvZLY+vSlbjhEpi+csxFHHXYpjrjpVkdCbwRnCz46zsQ722CYd3c/nWqhkfk/+Cw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758638418; c=relaxed/simple; bh=Q4FysjLwmisDNtR/Tyh/L+zp4+LEXH1XuUq81ZlHyiA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dpQ/QoRWA/Vm+xPLjLr0thr0pa+AoL8CynRxipI9qKgvsvqaovihHrnagJnXnfD7NbyS4LN/60MGngBJME5HRHW4mJH2i38a/ajjUhLL8iI8wASQ0QhaabTduGLXQg3T2cyzNMCtayNOdRcnBBfMenq6SEQVlBOJjER5c4uLqr8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=d8OjobuZ; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="d8OjobuZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1758638416; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TRIZZjnscf0CTJC2caJhMyNbvqlOTaws6rzDBpb96D8=; b=d8OjobuZUMU8Ce1oqESv0xwVwsK+ktPvhYJnL4jV15Dik+IujFs3n82g21INSh3vi/4eLt 9HcMblDvqeCIeDBkqMHagOgjMMH+BPKv9Bao/f0bx4a1tRaFgfc+snqC2ehxhhFUwOTMpu zh0hhrabsEqeOmdeaF3kSURAq6R0iPw= Received: from mail-qk1-f197.google.com (mail-qk1-f197.google.com [209.85.222.197]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-632-zSJ7nwD4Mf66kZX9qlQg8g-1; Tue, 23 Sep 2025 10:40:14 -0400 X-MC-Unique: zSJ7nwD4Mf66kZX9qlQg8g-1 X-Mimecast-MFC-AGG-ID: zSJ7nwD4Mf66kZX9qlQg8g_1758638413 Received: by mail-qk1-f197.google.com with SMTP id af79cd13be357-82fde24f7cfso1152644785a.2 for ; Tue, 23 Sep 2025 07:40:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758638413; x=1759243213; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TRIZZjnscf0CTJC2caJhMyNbvqlOTaws6rzDBpb96D8=; b=bkD1y9BmBOkJPE+vUKr+uz/bBh4VWnsm/hd+f3X9eoOmR1dOjVsCCRxQoAnVPLwpkw WOeHK2Y4vuahBSW4MKLBOoCvZ7tQ/xlsISotfShn2Ea5/uDBU6p2g1DSVGZwKu73efYg 6ewtJDg0edWyvrpqhtIqLOdnCCckI62ooh8quJ/fwNjW00AVyz5ezjQ6N2eKxfH89PG1 mYOx10CT6esPxzIyPJ5SSPSUY6cCHv4MeYA7WbDzvHmwr0o8anpPBL1WXXy5blWZDnbP oqpnrjklAAww2EcSJXO1NtxJccolXCvE25P3KOWyhjuQCyexCpkXtHMafyF4t5sNcXS6 umIA== X-Forwarded-Encrypted: i=1; AJvYcCXcYViTs6CwKaZgv8xD1+Y609cvOu++um6YvXSS4nU1haPEv22fbLFUu7TkDF9Si+CoCKIAULcsg+4=@vger.kernel.org X-Gm-Message-State: AOJu0YwEkY376AaxNGEPbU6Jmmp/UO+Kmm3xXqcfYzB4qYUJgMHpVKsF zHT42eNr4Bm8rkPJzNWUO49050T8kzNLHEDuqjPF1qZwhRBeC74qc1yrd5mIUAP+MKBcad7CXqI j79whi/hHIqgKTI1vx/7/TpG2bopr90N7mp4Egg3n71ZlutokIqPojazO6IvvQQ== X-Gm-Gg: ASbGncuPECNtZrdP+UfWwv/Hhxu2dwFr/Gd5KlQ8IpyHUBKRi9ljjhvdv97Bh5Z9IrW pIh0GxzyCYk0xLqEdlnFGCskDvMqbpQ4JqGgaicPAdNroZLpYykoaSyF1SR+0v0NcCPS6yKgzEx n17qnUc7+eUc7Jjeemhx5uXf2mynop2e7Y2v5D6ypx1vqrNS8PKFel7Qwnkhtau0xuGCwGITg/G EVQBt9Chkj5N3QIu65AfNBpbFJJymC6ezX4AjQYKdj4samd0OJTQMzTWmEjsYvW8koNR95XTVIn ZyTlKJ69HuEK0d0ZPBDg5Tgrlpj3SdtHdeVAg31W3plw9rY9tHss9zw4cG0vrR3nai7d8JiItOe DzOi/ckF4l9EYeqoNehiRh6CabFEqgrBZpX1GmSU= X-Received: by 2002:a05:620a:3953:b0:7ea:463:e2f9 with SMTP id af79cd13be357-8516eb4611bmr323652485a.20.1758638413165; Tue, 23 Sep 2025 07:40:13 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEPaSgwgYu2jWSLtWkKuFwUUeiviIqk4f81BpVimVxbiuKlOcm9lYGy6m0TtX9XsNim1ZZ0Jg== X-Received: by 2002:a05:620a:3953:b0:7ea:463:e2f9 with SMTP id af79cd13be357-8516eb4611bmr323648585a.20.1758638412624; Tue, 23 Sep 2025 07:40:12 -0700 (PDT) Received: from [10.175.117.224] (c-73-183-52-120.hsd1.pa.comcast.net. [73.183.52.120]) by smtp.gmail.com with ESMTPSA id af79cd13be357-84f2f6f3c25sm230272985a.49.2025.09.23.07.40.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Sep 2025 07:40:11 -0700 (PDT) From: Brian Masney Date: Tue, 23 Sep 2025 10:39:27 -0400 Subject: [PATCH RFC v4 08/12] clk: test: introduce test variation for sibling rate changes on a mux Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250923-clk-tests-docs-v4-8-9205cb3d3cba@redhat.com> References: <20250923-clk-tests-docs-v4-0-9205cb3d3cba@redhat.com> In-Reply-To: <20250923-clk-tests-docs-v4-0-9205cb3d3cba@redhat.com> To: Michael Turquette , Stephen Boyd , Maxime Ripard , Jonathan Corbet , Russell King Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Brian Masney X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2549; i=bmasney@redhat.com; s=20250903; h=from:subject:message-id; bh=Q4FysjLwmisDNtR/Tyh/L+zp4+LEXH1XuUq81ZlHyiA=; b=owGbwMvMwCW2/dJd9di6A+2Mp9WSGDIubTR4svCbnaRe5RUGyR8OPzdxRmdP4VxQ18a24lZaf I5+06zDHaUsDGJcDLJiiixLco0KIlJX2d67o8kCM4eVCWQIAxenAEwkrZuRYfO2iu/hbyb0XTlo tejBw8MuZVF/Y3tYTum8PHeu3+nsMnOGf7YnXzAUm1WWCu+dyqlh9OvDzOCb3j/uZrguz7jm/7f +HCsA X-Developer-Key: i=bmasney@redhat.com; a=openpgp; fpr=A46D32705865AA3DDEDC2904B7D2DD275D7EC087 Introduce a test variation that creates a parent with two children: a divider and a mux. Ensure that changing the rate of the divider does not affect the rate of the mux. Signed-off-by: Brian Masney --- drivers/clk/clk_test.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/drivers/clk/clk_test.c b/drivers/clk/clk_test.c index a330de8bd8dc2cdda558d364a3c6d87a26791c8d..0344f3f62251728e15af277ea0d143dc1f40fd94 100644 --- a/drivers/clk/clk_test.c +++ b/drivers/clk/clk_test.c @@ -908,6 +908,47 @@ clk_rate_change_sibling_div_gate_test_init(struct kunit *test) return &ctx->clk_ctx; } +struct clk_rate_change_sibling_div_mux_sibling_context { + struct clk_dummy_div child1; + struct clk_multiple_parent_ctx child2_mux; + struct clk_test_rate_change_sibling_clk_ctx clk_ctx; +}; + +static struct clk_test_rate_change_sibling_clk_ctx * +clk_rate_change_sibling_div_mux_test_init(struct kunit *test) +{ + struct clk_rate_change_sibling_div_mux_sibling_context *ctx; + int ret; + + ctx = kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return ERR_PTR(-ENOMEM); + test->priv = ctx; + + ret = clk_init_multiple_parent_ctx(test, &ctx->child2_mux, + "parent0", 24 * HZ_PER_MHZ, + "parent1", 48 * HZ_PER_MHZ, + "child2", CLK_SET_RATE_NO_REPARENT, + &clk_multiple_parents_mux_ops); + if (ret) + return ERR_PTR(ret); + + ctx->child1.hw.init = CLK_HW_INIT_HW("child1", &ctx->child2_mux.parents_ctx[0].hw, + &clk_dummy_div_ops, CLK_SET_RATE_PARENT); + ctx->child1.div = 1; + ret = clk_hw_register_kunit(test, NULL, &ctx->child1.hw); + if (ret) + return ERR_PTR(ret); + + KUNIT_ASSERT_EQ(test, ret, 0); + + ctx->clk_ctx.parent_clk = clk_hw_get_clk(&ctx->child2_mux.parents_ctx[0].hw, NULL); + ctx->clk_ctx.child1_clk = clk_hw_get_clk(&ctx->child1.hw, NULL); + ctx->clk_ctx.child2_clk = clk_hw_get_clk(&ctx->child2_mux.hw, NULL); + + return &ctx->clk_ctx; +} + struct clk_test_rate_change_sibling_test_case { const char *desc; struct clk_test_rate_change_sibling_clk_ctx *(*init)(struct kunit *test); @@ -918,6 +959,10 @@ static struct clk_test_rate_change_sibling_test_case clk_test_rate_change_siblin .desc = "div_gate", .init = clk_rate_change_sibling_div_gate_test_init, }, + { + .desc = "div_mux", + .init = clk_rate_change_sibling_div_mux_test_init, + }, }; KUNIT_ARRAY_PARAM_DESC(clk_test_rate_change_sibling_test_case, -- 2.51.0