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[73.183.52.120]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7d09a0f984fsm13437985a.43.2025.05.28.16.17.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 May 2025 16:17:32 -0700 (PDT) From: Brian Masney Date: Wed, 28 May 2025 19:16:56 -0400 Subject: [PATCH v2 10/10] clk: test: introduce test variation for sibling rate changes on a gate/mux Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250528-clk-wip-v2-v2-10-0d2c2f220442@redhat.com> References: <20250528-clk-wip-v2-v2-0-0d2c2f220442@redhat.com> In-Reply-To: <20250528-clk-wip-v2-v2-0-0d2c2f220442@redhat.com> To: Stephen Boyd , Maxime Ripard Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Thomas Gleixner , Michael Turquette , Alberto Ruiz , Brian Masney X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1748474226; l=2565; i=bmasney@redhat.com; s=20250528; h=from:subject:message-id; bh=2UyuBFVBF7/NqDq+ovnhAtBjPjcIVQGpsNux7ISwlE4=; b=5fozoClZaz3cF6k4P4348t7plBzvForrhLSMk0Pp0guJb4WPQJlBDPhK0JHbk/o6+gBWT/w/0 ej3nCkgUHHFCW2CQldcwiDaZlKZM5RiBeuoM38YlJDqfNV3RHJuEBIh X-Developer-Key: i=bmasney@redhat.com; a=ed25519; pk=x20f2BQYftANnik+wvlm4HqLqAlNs/npfVcbhHPOK2U= Introduce a test variation that creates a parent with two children: a gate and a mux. Ensure that changing the rate of the gate does not affect the rate of the mux. Signed-off-by: Brian Masney --- drivers/clk/clk_test.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/drivers/clk/clk_test.c b/drivers/clk/clk_test.c index b5cf0de16abd1e098368a67626fff9044f7a1a6a..c5b856e224f057b011b095d998c= a3016b6a041a8 100644 --- a/drivers/clk/clk_test.c +++ b/drivers/clk/clk_test.c @@ -946,6 +946,48 @@ clk_rate_change_sibling_div_mux_test_init(struct kunit= *test) return &ctx->clk_ctx; } =20 +struct clk_rate_change_sibling_gate_mux_sibling_context { + struct clk_dummy_gate 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_gate_mux_test_init(struct kunit *test) +{ + struct clk_rate_change_sibling_gate_mux_sibling_context *ctx; + int ret; + + ctx =3D kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return ERR_PTR(-ENOMEM); + test->priv =3D ctx; + + ret =3D clk_init_multiple_parent_ctx(test, &ctx->child2_mux, + "parent0", DUMMY_CLOCK_RATE_24_MHZ, + "parent1", DUMMY_CLOCK_RATE_48_MHZ, + "child2", CLK_SET_RATE_NO_REPARENT, + &clk_multiple_parents_mux_ops); + if (ret) + return ERR_PTR(ret); + + ctx->child1.hw.init =3D CLK_HW_INIT_HW("child1", + &ctx->child2_mux.parents_ctx[0].hw, + &clk_dummy_gate_ops, + CLK_SET_RATE_PARENT); + ret =3D 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 =3D clk_hw_get_clk(&ctx->child2_mux.parents_ctx[0= ].hw, NULL); + ctx->clk_ctx.child1_clk =3D clk_hw_get_clk(&ctx->child1.hw, NULL); + ctx->clk_ctx.child2_clk =3D 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); @@ -960,6 +1002,10 @@ static struct clk_test_rate_change_sibling_test_case = clk_test_rate_change_siblin .desc =3D "div_mux", .init =3D clk_rate_change_sibling_div_mux_test_init, }, + { + .desc =3D "gate_mux", + .init =3D clk_rate_change_sibling_gate_mux_test_init, + }, }; =20 KUNIT_ARRAY_PARAM_DESC(clk_test_rate_change_sibling_test_case, --=20 2.49.0