From patchwork Sun Sep 17 15:26:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abdel Alkuor X-Patchwork-Id: 13388579 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 C8152290B; Sun, 17 Sep 2023 15:27:04 +0000 (UTC) Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04F3911F; Sun, 17 Sep 2023 08:27:03 -0700 (PDT) Received: by mail-wr1-x436.google.com with SMTP id ffacd0b85a97d-3214de9cd8bso230129f8f.2; Sun, 17 Sep 2023 08:27:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1694964421; x=1695569221; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=itAnQtUK0esq7xPW/PIltIlBTpoKhniXVdlB9pgFqig=; b=fpcmbzioRagxHtRRBJqwPgMcM5eEUjASlnE4sGUhQKLKouuNeMEJe6jVKLb36Yw+3c Pnb03qaFZE343cTmm5WgnuvNWJhq6EwxCoI74pUcKUldEiyCaoX26lfPvN41JZjan6Jc P7H80jFNdsvHpD9kRND3HN+4b/2iIvg2GxIrNfr9r/vbSRszfj7NCvKja9vrNnCARb/s rdP6gSaEA6QV9qvIivjpopByu+zgcf81h9OnUH+tDccKmuITDQx4ywZSJ7RmXs+VlpeR 8BdpfIYj0Kja5D7tvsAPMvKkjPM/q5xcq2/yul79//1uDoGhi58gt2Kq/B0OsWu16+DV +rDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694964421; x=1695569221; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=itAnQtUK0esq7xPW/PIltIlBTpoKhniXVdlB9pgFqig=; b=r4MjzYvzib8d5YPD4pge/uqEew1YnWqjLqXrGPLsklFtHmdSwA48uuzqRVRgAeEyVy owCnCcyTXr3W3FqWZ9BAIdZylnUnExSor79NzYD/KbZvuxUHz7WjaQQd3QSdGRUlZKb8 ftxTz6iOWiyHc/4/GJug0WIqN0iCSZnK8OO1XFzA1ixByuTy4TopG+rCGlk4JAciTLbW LLaof8LKi8jY/2ElhOSk0w3is0kX9bkDi66RFnnrLyRpkZNRuNDMapKzFg9qbD5QmoBB DZlnqGbefOZ+maNBlifvdVNUSrldufQ/O1Z7Doqu7NOHPYr5nWD5WpF2bPHrnlDWLxJE xaZw== X-Gm-Message-State: AOJu0Yye9jt9A08lcMULo3+zgXLlFU2SKnZ+zBu1tilaL0hfIo6K2uAd XNo14HqMtlJuyX2/YnNsf80= X-Google-Smtp-Source: AGHT+IHukKtw2b9SH5a5yatF3/vlsOtq0OzgkV4iDDaL+tlI2m6aiInWnEoKVXTTzZ8SIA5rrVCllA== X-Received: by 2002:a05:6000:118d:b0:316:efb9:101d with SMTP id g13-20020a056000118d00b00316efb9101dmr6956862wrx.25.1694964421068; Sun, 17 Sep 2023 08:27:01 -0700 (PDT) Received: from localhost.localdomain ([5.45.134.53]) by smtp.gmail.com with ESMTPSA id j23-20020a05600c489700b003fe15ac0934sm7388865wmp.1.2023.09.17.08.26.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Sep 2023 08:27:00 -0700 (PDT) From: Abdel Alkuor To: heikki.krogerus@linux.intel.com, krzysztof.kozlowski+dt@linaro.org, bryan.odonoghue@linaro.org Cc: gregkh@linuxfoundation.org, robh+dt@kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, conor+dt@kernel.org, linux-kernel@vger.kernel.org, abdelalkuor@geotab.com Subject: [PATCH v5 00/15] Add TPS25750 USB type-C PD controller support Date: Sun, 17 Sep 2023 11:26:24 -0400 Message-Id: <20230917152639.21443-1-alkuor@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net From: Abdel Alkuor TPS25750 USB type-C PD controller has the same register offsets as tps6598x. The following is a summary of incorporating TPS25750 into TPS6598x driver: - Only Check VID register (0x00) for TPS6598x and cd321x, as TPS25750 doesn't have VID register. - TypeC port registration will be registered differently for each PD controller. TPS6598x uses system configuration register (0x28) to get pr/dr capabilities. On the other hand, TPS25750 will use data role property and PD status register (0x40) to get pr/dr capabilities as TPS25750 doesn't have register 0x28 supported. - TPS25750 requires writing a binary configuration to switch PD controller from PTCH mode to APP mode which needs the following changes: - Add PTCH mode to the modes list. - Add an argument to tps6598x_check_mode to return the current mode. - Currently, tps6598x_exec_cmd has cmd timeout hardcoded to 1 second, and doesn't wait before checking DATA_OUT response. In TPS25750, patch 4CCs take longer than 1 second to execute and some requires a delay before checking DATA_OUT. To accommodate that, cmd_timeout and response_delay will be added as arguments to tps6598x_exec_cmd. - Implement applying patch sequence for TPS25750. - In pm suspend callback, patch mode needs to be checked and the binary configuration should be applied if needed. - For interrupt, TPS25750 has only one event register (0x14) and one mask register (0x16) of 11 bytes each, where TPS6598x has two event and two mask registers of 8 bytes each. Both TPS25750 and TPS65986x shares the same bit field offsets for events/masks/clear but many of there fields are reserved in TPS25750, the following needs to be done in tps6598x_interrupt: - Read EVENT1 register as a block of 11 bytes when tps25750 is present - Write CLEAR1 register as a block of 11 bytes when tps25750 is present - Add trace_tps25750_irq - During testing, I noticed that when a cable is plugged into the PD controller and before PD controller switches to APP mode, there is a lag between dr/pr updates and PlugInsertOrRemoval Event, so a check for dr/pr change needs to be added along TPS_REG_INT_PLUG_EVENT check - Add TPS25750 traces for status and power status registers. Trace for data register won't be added as it doesn't exist in the device. - Configure sleep mode for TPS25750. v5: - PATCH 1: Add tps25750 bindings to tps6598x - PATCH 2: Remove tps25750 driver and incorperate tps25750 into tps6598x driver v4: - PATCH 1: No change - PATCH 2: Fix comments style and drop of_match_ptr v3: - PATCH 1: Fix node name - PATCH 2: Upload tps25750 driver patch v2: - PATCH 1: General properties clean up Abdel Alkuor (15): dt-bindings: usb: tps6598x: Add tps25750 USB: typec: Add cmd timeout and response delay USB: typec: Add patch mode to tps6598x USB: typec: Load TPS25750 patch bundle USB: typec: Check for EEPROM present USB: typec: Clear dead battery flag USB: typec: Apply patch again after power resume USB: typec: Add interrupt support for TPS25750 USB: typec: Refactor tps6598x port registration USB: typec: Add port registration for tps25750 USB: typec: Enable sleep mode for tps25750 USB: typec: Add trace for tps25750 irq USB: typec: Add power status trace for tps25750 USB: typec: Add status trace for tps25750 USB: typec: Do not check VID for tps25750 .../devicetree/bindings/usb/ti,tps6598x.yaml | 70 +++ drivers/usb/typec/tipd/core.c | 570 +++++++++++++++--- drivers/usb/typec/tipd/tps6598x.h | 36 ++ drivers/usb/typec/tipd/trace.h | 84 +++ 4 files changed, 683 insertions(+), 77 deletions(-)