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Fri, 05 Sep 2025 06:25:02 -0700 (PDT) Received: from localhost.localdomain ([2401:ce20:10::d4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-24c8945d8d4sm76447955ad.127.2025.09.05.06.24.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Sep 2025 06:25:01 -0700 (PDT) From: WeiHao Li To: heiko@sntech.de, robh@kernel.org Cc: krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, WeiHao Li Subject: [PATCH v1 1/4] clk: rockchip: rk3368: fix SCLK_I2S_8CH_OUT flags Date: Fri, 5 Sep 2025 21:23:25 +0800 Message-ID: <20250905132328.9859-2-cn.liweihao@gmail.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250905132328.9859-1-cn.liweihao@gmail.com> References: <20250905132328.9859-1-cn.liweihao@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Clock SCLK_I2S_8CH_OUT has no capability to adjust clock frequency by itself, add CLK_SET_RATE_PARENT flag to fix it. Signed-off-by: WeiHao Li Tested-by: WeiHao Li --- drivers/clk/rockchip/clk-rk3368.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-r= k3368.c index 95e6996adb..8159f643dc 100644 --- a/drivers/clk/rockchip/clk-rk3368.c +++ b/drivers/clk/rockchip/clk-rk3368.c @@ -371,7 +371,7 @@ static struct rockchip_clk_branch rk3368_clk_branches[]= __initdata =3D { RK3368_CLKSEL_CON(28), 0, RK3368_CLKGATE_CON(6), 2, GFLAGS, &rk3368_i2s_8ch_fracmux), - COMPOSITE_NODIV(SCLK_I2S_8CH_OUT, "i2s_8ch_clkout", mux_i2s_8ch_clkout_p,= 0, + COMPOSITE_NODIV(SCLK_I2S_8CH_OUT, "i2s_8ch_clkout", mux_i2s_8ch_clkout_p,= CLK_SET_RATE_PARENT, RK3368_CLKSEL_CON(27), 15, 1, MFLAGS, RK3368_CLKGATE_CON(6), 0, GFLAGS), GATE(SCLK_I2S_8CH, "sclk_i2s_8ch", "i2s_8ch_pre", CLK_SET_RATE_PARENT, --=20 2.39.5 From nobody Sat Feb 7 05:04:23 2026 Received: from mail-pl1-f173.google.com (mail-pl1-f173.google.com [209.85.214.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8EE753568E3; 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charset="utf-8" We need a clock id to assign clock parent when use i2s 8ch as audio device, CLK_I2S_8CH_FRAC should be CLK_I2S_8CH_PRE parent so we can get frequency we want. Signed-off-by: WeiHao Li Tested-by: WeiHao Li --- include/dt-bindings/clock/rk3368-cru.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/dt-bindings/clock/rk3368-cru.h b/include/dt-bindings/c= lock/rk3368-cru.h index b951e29069..795e721957 100644 --- a/include/dt-bindings/clock/rk3368-cru.h +++ b/include/dt-bindings/clock/rk3368-cru.h @@ -183,6 +183,9 @@ #define HCLK_BUS 477 #define HCLK_PERI 478 =20 +#define CLK_I2S_8CH_PRE 500 +#define CLK_I2S_8CH_FRAC 501 + /* soft-reset indices */ #define SRST_CORE_B0 0 #define SRST_CORE_B1 1 --=20 2.39.5 From nobody Sat Feb 7 05:04:23 2026 Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A1AA350D5A; Fri, 5 Sep 2025 13:25:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.172 ARC-Seal: i=1; a=rsa-sha256; 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charset="utf-8" Export the clocks via the newly added clock-ids. Signed-off-by: WeiHao Li Tested-by: WeiHao Li --- drivers/clk/rockchip/clk-rk3368.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-r= k3368.c index 8159f643dc..1fb18c9596 100644 --- a/drivers/clk/rockchip/clk-rk3368.c +++ b/drivers/clk/rockchip/clk-rk3368.c @@ -244,7 +244,7 @@ static struct rockchip_cpuclk_rate_table rk3368_cpuclkl= _rates[] __initdata =3D { }; =20 static struct rockchip_clk_branch rk3368_i2s_8ch_fracmux __initdata =3D - MUX(0, "i2s_8ch_pre", mux_i2s_8ch_pre_p, CLK_SET_RATE_PARENT, + MUX(CLK_I2S_8CH_PRE, "i2s_8ch_pre", mux_i2s_8ch_pre_p, CLK_SET_RATE_PAREN= T, RK3368_CLKSEL_CON(27), 8, 2, MFLAGS); =20 static struct rockchip_clk_branch rk3368_spdif_8ch_fracmux __initdata =3D @@ -367,7 +367,7 @@ static struct rockchip_clk_branch rk3368_clk_branches[]= __initdata =3D { COMPOSITE(0, "i2s_8ch_src", mux_pll_src_cpll_gpll_p, 0, RK3368_CLKSEL_CON(27), 12, 1, MFLAGS, 0, 7, DFLAGS, RK3368_CLKGATE_CON(6), 1, GFLAGS), - COMPOSITE_FRACMUX(0, "i2s_8ch_frac", "i2s_8ch_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(CLK_I2S_8CH_FRAC, "i2s_8ch_frac", "i2s_8ch_src", CLK_SE= T_RATE_PARENT, RK3368_CLKSEL_CON(28), 0, RK3368_CLKGATE_CON(6), 2, GFLAGS, &rk3368_i2s_8ch_fracmux), --=20 2.39.5 From nobody Sat Feb 7 05:04:23 2026 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8102A350D79; 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Fri, 05 Sep 2025 06:25:18 -0700 (PDT) Received: from localhost.localdomain ([2401:ce20:10::d4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-24c8945d8d4sm76447955ad.127.2025.09.05.06.25.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Sep 2025 06:25:18 -0700 (PDT) From: WeiHao Li To: heiko@sntech.de, robh@kernel.org Cc: krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, WeiHao Li Subject: [PATCH v1 4/4] arm64: dts: rockchip: Assign I2S 8 channel clock for rk3368 Date: Fri, 5 Sep 2025 21:23:28 +0800 Message-ID: <20250905132328.9859-5-cn.liweihao@gmail.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250905132328.9859-1-cn.liweihao@gmail.com> References: <20250905132328.9859-1-cn.liweihao@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" I2S 8CH needs assign correct clock to output frequency wanted. This patch assign CLK_I2S_8CH_FRAC as CLK_I2S_8CH_PRE parents. Signed-off-by: WeiHao Li Tested-by: WeiHao Li --- arch/arm64/boot/dts/rockchip/rk3368.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts= /rockchip/rk3368.dtsi index cdcbc0a944..d931b5f5ac 100644 --- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi @@ -862,6 +862,8 @@ i2s_8ch: i2s-8ch@ff898000 { compatible =3D "rockchip,rk3368-i2s", "rockchip,rk3066-i2s"; reg =3D <0x0 0xff898000 0x0 0x1000>; interrupts =3D ; + assigned-clocks =3D <&cru CLK_I2S_8CH_PRE>; + assigned-clock-parents =3D <&cru CLK_I2S_8CH_FRAC>; clock-names =3D "i2s_clk", "i2s_hclk"; clocks =3D <&cru SCLK_I2S_8CH>, <&cru HCLK_I2S_8CH>; dmas =3D <&dmac_bus 0>, <&dmac_bus 1>; --=20 2.39.5