From patchwork Fri May 12 13:58:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Weiss X-Patchwork-Id: 13239348 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 48DFA1EA6D for ; Fri, 12 May 2023 13:59:02 +0000 (UTC) Received: from mail-ej1-x62c.google.com (mail-ej1-x62c.google.com [IPv6:2a00:1450:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 029DF13C20 for ; Fri, 12 May 2023 06:58:57 -0700 (PDT) Received: by mail-ej1-x62c.google.com with SMTP id a640c23a62f3a-965ddb2093bso1444983866b.2 for ; Fri, 12 May 2023 06:58:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fairphone.com; s=fair; t=1683899936; x=1686491936; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=uD3Ipvt0NExfmILEv8OKGxIPIOoFOtued5pY1YUMvaA=; b=ZPbUlqd510c1ym+w8AeWysEGsU8WE4AvhtiRwFFFnqVDALOh+khbiSvxLg23oSyqZb m23j7QATGuiB4u5f77wUiSITvARRigOD9JS+B/tkoTq68F3Xv8HSx5C+8gufqCGb2jjJ vfVjzyKT6UxdFfWKSp5p+ftUI4XHKVG3wf6dHJVycvhQkMEdGfMDVCKE6Q9hO5a7wwr4 faAyGH3z4UyfAob0fREEEbsUpcUmp5EOxCWdfKQsqY0Pp9kfi8jdZs0uKlY7pUej7IV6 GEgNxH+Bh2Ib7LWsorTTtcuvaEnZz+D04+udrmhsU1TW+sJBVVAmAn82d6dQyBoArZ56 biYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683899936; x=1686491936; 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=uD3Ipvt0NExfmILEv8OKGxIPIOoFOtued5pY1YUMvaA=; b=Ks2ifDyguBQrxmr3uDat5eALI1NamrBM2FaT08UQs0ELjzRJnai/PSXu7nVKWblvXW rgHVCjxI3dw49S0BAUsgzSXVbIYX/j6uLn8T753qZgHFYSVguscZFf7g3iC92OJFsEgD sIT5f+s0wHQBbIBdqnKbekTJiMAG1Bj20dRwS4xNmntx0eI5IUoHSveaO9aQycyWXfA2 GaICFRjLO97hgeep06dvFbvN7O6ReDnOPt/tk7n0Gn0ObhyHDAzblcxWGPI9TtNl3UGV cNPe6FkUK9cMrhyvJqcDxxoVg4fCKGuoN0gieHLgRkmGXUXSvC9xv2N+Spzlf5ULeSD0 Z41Q== X-Gm-Message-State: AC+VfDxBLCbxijIz/+HF+KFe4Wa4n9YJf2bwjJgFOnWHAukD5G00V1Fv KrBCl2VIFxvAwL83e2gzjiH66A== X-Google-Smtp-Source: ACHHUZ5NT+vNCm97DRq7kbKwyyr5lRuNUHvWe9eNLgCczj2xQoRRAEPi7wrQRonSYKHmEGpAR8uEog== X-Received: by 2002:a17:907:9347:b0:933:3814:e0f4 with SMTP id bv7-20020a170907934700b009333814e0f4mr23139917ejc.16.1683899936411; Fri, 12 May 2023 06:58:56 -0700 (PDT) Received: from [172.16.240.113] (144-178-202-138.static.ef-service.nl. [144.178.202.138]) by smtp.gmail.com with ESMTPSA id mc27-20020a170906eb5b00b00966330021e9sm5399061ejb.47.2023.05.12.06.58.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 May 2023 06:58:55 -0700 (PDT) From: Luca Weiss Date: Fri, 12 May 2023 15:58:26 +0200 Subject: [PATCH v2 4/4] arm64: dts: qcom: sm7225-fairphone-fp4: Add Bluetooth Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20230421-fp4-bluetooth-v2-4-3de840d5483e@fairphone.com> References: <20230421-fp4-bluetooth-v2-0-3de840d5483e@fairphone.com> In-Reply-To: <20230421-fp4-bluetooth-v2-0-3de840d5483e@fairphone.com> To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz , Andy Gross , Bjorn Andersson , Konrad Dybcio , Conor Dooley Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-arm-msm@vger.kernel.org, Luca Weiss X-Mailer: b4 0.12.2 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net The device has a WCN3988 chip for WiFi and Bluetooth. Configure the Bluetooth node and enable the UART it is connected to, plus the necessary pinctrl that has been borrowed with comments from sc7280-idp.dtsi. Signed-off-by: Luca Weiss --- arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 103 ++++++++++++++++++++++ 1 file changed, 103 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts index 7ae6aba5d2ec..e3dc49951523 100644 --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts @@ -31,6 +31,7 @@ / { aliases { serial0 = &uart9; + serial1 = &uart1; }; chosen { @@ -524,6 +525,39 @@ adc-chan@644 { }; }; +&qup_uart1_cts { + /* + * Configure a bias-bus-hold on CTS to lower power + * usage when Bluetooth is turned off. Bus hold will + * maintain a low power state regardless of whether + * the Bluetooth module drives the pin in either + * direction or leaves the pin fully unpowered. + */ + bias-bus-hold; +}; + +&qup_uart1_rts { + /* We'll drive RTS, so no pull */ + drive-strength = <2>; + bias-disable; +}; + +&qup_uart1_rx { + /* + * Configure a pull-up on RX. This is needed to avoid + * garbage data when the TX pin of the Bluetooth module is + * in tri-state (module powered off or not driving the + * signal yet). + */ + bias-pull-up; +}; + +&qup_uart1_tx { + /* We'll drive TX, so no pull */ + drive-strength = <2>; + bias-disable; +}; + &qupv3_id_0 { status = "okay"; }; @@ -561,6 +595,75 @@ &sdhc_2 { &tlmm { gpio-reserved-ranges = <13 4>, <56 2>; + + qup_uart1_sleep_cts: qup-uart1-sleep-cts-state { + pins = "gpio61"; + function = "gpio"; + /* + * Configure a bias-bus-hold on CTS to lower power + * usage when Bluetooth is turned off. Bus hold will + * maintain a low power state regardless of whether + * the Bluetooth module drives the pin in either + * direction or leaves the pin fully unpowered. + */ + bias-bus-hold; + }; + + qup_uart1_sleep_rts: qup-uart1-sleep-rts-state { + pins = "gpio62"; + function = "gpio"; + /* + * Configure pull-down on RTS. As RTS is active low + * signal, pull it low to indicate the BT SoC that it + * can wakeup the system anytime from suspend state by + * pulling RX low (by sending wakeup bytes). + */ + bias-pull-down; + }; + + qup_uart1_sleep_rx: qup-uart1-sleep-rx-state { + pins = "gpio64"; + function = "gpio"; + /* + * Configure a pull-up on RX. This is needed to avoid + * garbage data when the TX pin of the Bluetooth module + * is floating which may cause spurious wakeups. + */ + bias-pull-up; + }; + + qup_uart1_sleep_tx: qup-uart1-sleep-tx-state { + pins = "gpio63"; + function = "gpio"; + /* + * Configure pull-up on TX when it isn't actively driven + * to prevent BT SoC from receiving garbage during sleep. + */ + bias-pull-up; + }; +}; + +&uart1 { + /delete-property/ interrupts; + interrupts-extended = <&intc GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>, + <&tlmm 64 IRQ_TYPE_EDGE_FALLING>; + + pinctrl-names = "default", "sleep"; + pinctrl-1 = <&qup_uart1_sleep_cts>, <&qup_uart1_sleep_rts>, <&qup_uart1_sleep_tx>, <&qup_uart1_sleep_rx>; + + status = "okay"; + + bluetooth { + compatible = "qcom,wcn3988-bt"; + + vddio-supply = <&vreg_l11a>; + vddxo-supply = <&vreg_l7a>; + vddrf-supply = <&vreg_l2e>; + vddch0-supply = <&vreg_l10e>; + swctrl-gpios = <&tlmm 69 GPIO_ACTIVE_HIGH>; + + max-speed = <3200000>; + }; }; &uart9 {