From patchwork Sat Jan 13 05:42:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 762858 Received: from mail-lj1-f178.google.com (mail-lj1-f178.google.com [209.85.208.178]) (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 428431A73E for ; Sat, 13 Jan 2024 05:42:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="OZ9zstdI" Received: by mail-lj1-f178.google.com with SMTP id 38308e7fff4ca-2cd853c159eso30427661fa.2 for ; Fri, 12 Jan 2024 21:42:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1705124570; x=1705729370; darn=vger.kernel.org; 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=Z5irpYM5MTpJq3VqIMDtY9CGRoQJVYlNPi44Y66fgdM=; b=OZ9zstdIbLrqrj4dUOR4sly9iF9tMXKCeus7RygTBeOvTCsyLFyl4h7zlv/ZBgjKQk jlqc6xSTvUMJQWGSKRRhkpWNpDk2+1NXyPqs4DmDnF2TILXpQoHt1vJBp8UK+BHEkS7j hjZzzmWCvQc79lLgmj4pfChvc05FosccuWeoRBsldQ37zZA/T4/h9LhcjOzD4qm/FSy3 tkhHYJ0GPOvZpeNGMDZ9UaE1s1DvNJVngPozudrRn4KyANapGeE0aXKs7eXPz1b4AKsU VvIGWKtfVsfQpJdThG8ryGfFrhoO893nE9uSQj5xZ6dB71r5w4wuS2SCPf2mkA/c4PwX 8R/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705124570; x=1705729370; 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=Z5irpYM5MTpJq3VqIMDtY9CGRoQJVYlNPi44Y66fgdM=; b=J44rgTiIuiN29QE0ol54j0+f7mTHFB70VNomYJn5J1SFRx4XHCStjwGJBv7PgNZf2s c+4hVuSxMLoKIg3iFYd5Jg72VbQ89whNyGWTxQhBrSwN1RWTzGNAVcuuW4QuZTKs5qln frA1FVXro8ALF/D/vKuqDf5eEmvWitty4d3ogqm7LDCRwfcw9KXSq8GoYwsdDYRpe//I nefBMvi2QR83TAWR/yb2UY4yPL3CDyE256sDbjlYYiRZrmFe8+juI+3Y3KrVhNHm1t5y uFXW5ov0oBJM1wHOo0q6yxSzevbmMPbdxn4fshmtzBIz0lNMGbczk5KFRmg51ljFl6Uj wCCg== X-Gm-Message-State: AOJu0YwpqWABTt/4bmW9kmD8VrS9TsFkJCs3v5JjVepMiyxvVRnVc/hR KtX9Wdr2ioCdqQaUfN0waza2sAQ8D50itQ== X-Google-Smtp-Source: AGHT+IHgLTCBUBb+cumPz42qHGnYZI45jV8ou7S+J/ZocJ/9+xC5j1fd9zLANoBkfFDBc7IR9hb5Vg== X-Received: by 2002:a2e:98d4:0:b0:2cc:fe03:4360 with SMTP id s20-20020a2e98d4000000b002ccfe034360mr1325938ljj.24.1705124570525; Fri, 12 Jan 2024 21:42:50 -0800 (PST) Received: from umbar.lan ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id r22-20020a2eb616000000b002cc71e9168csm677719ljn.129.2024.01.12.21.42.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jan 2024 21:42:50 -0800 (PST) From: Dmitry Baryshkov Date: Sat, 13 Jan 2024 07:42:47 +0200 Subject: [PATCH 10/13] phy: qcom: qmp-usbc: add support for the Type-C handling Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240113-pmi632-typec-v1-10-de7dfd459353@linaro.org> References: <20240113-pmi632-typec-v1-0-de7dfd459353@linaro.org> In-Reply-To: <20240113-pmi632-typec-v1-0-de7dfd459353@linaro.org> To: Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Wesley Cheng , Bryan O'Donoghue , Greg Kroah-Hartman , Vinod Koul , Kishon Vijay Abraham I , Guenter Roeck , Heikki Krogerus , Philipp Zabel , Bhupesh Sharma Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-phy@lists.infradead.org X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=5166; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=vrGMpxrK0VSYVpeyxHuCQp6gFuTsIdr2EtQDlSiiH6Y=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBloiLR1IiCvPDQIJxTk7qswUkejvN9Hk5ieoTCU gqFwEGaw1OJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZaIi0QAKCRCLPIo+Aiko 1QJuCACb3srGHjAYjlfjgCSx4EPBnhy083HxD8b9m48H5Z32tNkKO13DRO4gTl/MF3ksLubXKua omVVcyFbxskE0BPiR1Y+WG73f600A+K9/WDgGEK1V1FnadjjDzM+EHoEEucYm5GdeLGVZbAEodc wU3GV2vD/wAsk8iukiphskvHhdAbwe1uwrwGVwvnLXpmiuyzvV4t2lS978vN8V0Up/1aHdQ1qWE lVu85OoovoHHrQMEFnW4TsBKCMskSOEhwklhCdYUuDfdU+QYp9lKlECPfanmWSjXJvwcQPSCOR+ Mnb6fqHrZWMxBs/MeJ6Fm2ks5c2C7/a7nuTks+YR0pPAKhHq X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A The USB-C PHYs on the msm8998, QCM2290 and SM6115 platforms use special register to control which lanes of the Type-C port are used for the SuperSpeed USB connection. Mimic the qmp-combo driver and handle this register. Signed-off-by: Dmitry Baryshkov --- drivers/phy/qualcomm/phy-qcom-qmp-usbc.c | 97 +++++++++++++++++++++++++++++++- 1 file changed, 94 insertions(+), 3 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c b/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c index 21faed7f648a..9cddba30b52e 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include "phy-qcom-qmp.h" #include "phy-qcom-qmp-pcs-misc-v3.h" @@ -381,11 +383,17 @@ struct qmp_usbc { struct reset_control_bulk_data *resets; struct regulator_bulk_data *vregs; + struct mutex phy_mutex; + enum phy_mode mode; + unsigned int usb_init_count; struct phy *phy; struct clk_fixed_rate pipe_clk_fixed; + + struct typec_switch_dev *sw; + enum typec_orientation orientation; }; static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val) @@ -516,6 +524,7 @@ static int qmp_usbc_init(struct phy *phy) struct qmp_usbc *qmp = phy_get_drvdata(phy); const struct qmp_phy_cfg *cfg = qmp->cfg; void __iomem *pcs = qmp->pcs; + u32 val = 0; int ret; ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); @@ -542,6 +551,14 @@ static int qmp_usbc_init(struct phy *phy) qphy_setbits(pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL], SW_PWRDN); +#define SW_PORTSELECT_VAL BIT(0) +#define SW_PORTSELECT_MUX BIT(1) + /* Use software based port select and switch on typec orientation */ + val = SW_PORTSELECT_MUX; + if (qmp->orientation == TYPEC_ORIENTATION_REVERSE) + val |= SW_PORTSELECT_VAL; + writel(val, qmp->pcs_misc); + return 0; err_assert_reset: @@ -646,23 +663,34 @@ static int qmp_usbc_power_off(struct phy *phy) static int qmp_usbc_enable(struct phy *phy) { + struct qmp_usbc *qmp = phy_get_drvdata(phy); int ret; + mutex_lock(&qmp->phy_mutex); + ret = qmp_usbc_init(phy); if (ret) - return ret; + goto out_unlock; ret = qmp_usbc_power_on(phy); - if (ret) + if (ret) { qmp_usbc_exit(phy); + goto out_unlock; + } + + qmp->usb_init_count++; +out_unlock: + mutex_unlock(&qmp->phy_mutex); return ret; } static int qmp_usbc_disable(struct phy *phy) { + struct qmp_usbc *qmp = phy_get_drvdata(phy); int ret; + qmp->usb_init_count--; ret = qmp_usbc_power_off(phy); if (ret) return ret; @@ -900,6 +928,61 @@ static int phy_pipe_clk_register(struct qmp_usbc *qmp, struct device_node *np) return devm_add_action_or_reset(qmp->dev, phy_clk_release_provider, np); } +#if IS_ENABLED(CONFIG_TYPEC) +static int qmp_usbc_typec_switch_set(struct typec_switch_dev *sw, + enum typec_orientation orientation) +{ + struct qmp_usbc *qmp = typec_switch_get_drvdata(sw); + + if (orientation == qmp->orientation || orientation == TYPEC_ORIENTATION_NONE) + return 0; + + mutex_lock(&qmp->phy_mutex); + qmp->orientation = orientation; + + if (qmp->usb_init_count) { + qmp_usbc_power_off(qmp->phy); + qmp_usbc_exit(qmp->phy); + + qmp_usbc_init(qmp->phy); + qmp_usbc_power_on(qmp->phy); + } + + mutex_unlock(&qmp->phy_mutex); + + return 0; +} + +static void qmp_usbc_typec_unregister(void *data) +{ + struct qmp_usbc *qmp = data; + + typec_switch_unregister(qmp->sw); +} + +static int qmp_usbc_typec_switch_register(struct qmp_usbc *qmp) +{ + struct typec_switch_desc sw_desc = {}; + struct device *dev = qmp->dev; + + sw_desc.drvdata = qmp; + sw_desc.fwnode = dev->fwnode; + sw_desc.set = qmp_usbc_typec_switch_set; + qmp->sw = typec_switch_register(dev, &sw_desc); + if (IS_ERR(qmp->sw)) { + dev_err(dev, "Unable to register typec switch: %pe\n", qmp->sw); + return PTR_ERR(qmp->sw); + } + + return devm_add_action_or_reset(dev, qmp_usbc_typec_unregister, qmp); +} +#else +static int qmp_usbc_typec_switch_register(struct qmp_usbc *qmp) +{ + return 0; +} +#endif + static int qmp_usbc_parse_dt_legacy(struct qmp_usbc *qmp, struct device_node *np) { struct platform_device *pdev = to_platform_device(qmp->dev); @@ -1027,16 +1110,24 @@ static int qmp_usbc_probe(struct platform_device *pdev) qmp->dev = dev; + qmp->orientation = TYPEC_ORIENTATION_NORMAL; + qmp->cfg = of_device_get_match_data(dev); if (!qmp->cfg) return -EINVAL; + mutex_init(&qmp->phy_mutex); + ret = qmp_usbc_vreg_init(qmp); if (ret) return ret; + ret = qmp_usbc_typec_switch_register(qmp); + if (ret) + return ret; + /* Check for legacy binding with child node. */ - np = of_get_next_available_child(dev->of_node, NULL); + np = of_get_child_by_name(dev->of_node, "phy"); if (np) { ret = qmp_usbc_parse_dt_legacy(qmp, np); } else {