From patchwork Fri Sep 29 14:30:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abdel Alkuor X-Patchwork-Id: 728051 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 2A6E7513AB; Fri, 29 Sep 2023 14:32:12 +0000 (UTC) Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C00E1B7; Fri, 29 Sep 2023 07:32:06 -0700 (PDT) Received: by mail-ed1-x52b.google.com with SMTP id 4fb4d7f45d1cf-530fa34ab80so1644689a12.0; Fri, 29 Sep 2023 07:32:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1695997924; x=1696602724; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=uBJa+cb8dyEAQp6tCGjW9jEwVET1F9T3nDrDaidKVoA=; b=nrv21yMlaN1PpwRLtiFYcA4mpXDsfAhOlmzc3IKC5PSawPInz4BvYFEBDtIw0tIQQv B10FSk86/s4J/CAI+ANDTpQZk5AIcVeRq84XGEadDftI59ouwUqNP7YzUWSvc+jNBCAu 80PAwkiog6LGBd+VEa87tI1mLz9jqwyC+QgEuYbTHbAEm2fLQGvJYG4Z19ZM3Gx3nazz 6NeTGJq7Dwcr/8oDxIVmn6OoZkMgLEQu/aI4d88RL50E8KCPNQbB4QsToj8HAROes+Rc UerEUvUbbKMkELjvbdJEacBh4d4ewbo0sCYDK3zm7XzA1LQrcn3k/k4Us5nszokdUpUe IR3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695997924; x=1696602724; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=uBJa+cb8dyEAQp6tCGjW9jEwVET1F9T3nDrDaidKVoA=; b=VvE2gOmPpB2BOT9BT8uwPbKvwIA0hJ39DJBQAHMT0DqWMPq74ia4e82F4inKtqWNw4 +89QyNCMJwgPDLatnh+48HzK6D9pzDQA/Xe1k6/qeHlSG1uG7nIuCJK6kzQleSPMrsD6 FyxAA6QdWLsNmJpeq8HZ3bpiF5+V9oXIOKv0Z08G78fTm3Lm74Ba7YRK+Vzav1ZAp/Pw eMVAUBfTgM8HQkHqoHrJ70KjjZ6GdQyhwXy6it04Ow43knlWeyJaUFiZU7zO6D9SGvlK Knf3cZ9Y4kitYNEsqBX55kN6bbQGD0LQijSfmqimyLJ/Qhcj4IO3JOGtU8UvuZjG2Sfq RC1Q== X-Gm-Message-State: AOJu0YwSdZOVGctMBGd48XvvXvitDTSI32BAOf7brWB7Np2kzQZ+vKF+ TpQPJyHDjUrSYaP8nElXx4Y= X-Google-Smtp-Source: AGHT+IHVXofCweihH53NkLW8P8QMLjXZgMZ5bBgy1437QIkgkXX4ySTQOyMG/kkw12Zz9RQTHONblQ== X-Received: by 2002:a17:906:51c6:b0:9b2:b30f:deb with SMTP id v6-20020a17090651c600b009b2b30f0debmr4443817ejk.4.1695997924606; Fri, 29 Sep 2023 07:32:04 -0700 (PDT) Received: from primary.. ([212.34.12.50]) by smtp.gmail.com with ESMTPSA id a7-20020a170906670700b0099293cdbc98sm12660105ejp.145.2023.09.29.07.32.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Sep 2023 07:32:04 -0700 (PDT) From: Abdel Alkuor To: heikki.krogerus@linux.intel.com, krzysztof.kozlowski+dt@linaro.org, bryan.odonoghue@linaro.org Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, ryan.eleceng@gmail.com, robh+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, Abdel Alkuor Subject: [PATCH v8 05/14] USB: typec: tps6598x: Check for EEPROM present Date: Fri, 29 Sep 2023 10:30:46 -0400 Message-Id: <20230929143055.31360-6-alkuor@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230929143055.31360-1-alkuor@gmail.com> References: <20230929143055.31360-1-alkuor@gmail.com> 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=-0.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_WEB,SPF_HELO_NONE,SPF_PASS autolearn=no 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 When an EEPROM is present, tps25750 loads the binary configuration from EEPROM. Hence, all we need to do is wait for the device to switch to APP mode Signed-off-by: Abdel Alkuor --- Changes in v8: - No changes Changes in v7: - Add driver name to commit subject Changes in v6: - Update eeprom macro to use TPS instead Changes in v5: - Incorporating tps25750 into tps6598x driver drivers/usb/typec/tipd/core.c | 13 +++++++++++++ drivers/usb/typec/tipd/tps6598x.h | 3 +++ 2 files changed, 16 insertions(+) diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c index 2e7b9eafaf04..21b0ea2c9627 100644 --- a/drivers/usb/typec/tipd/core.c +++ b/drivers/usb/typec/tipd/core.c @@ -37,6 +37,7 @@ #define TPS_REG_STATUS 0x1a #define TPS_REG_SYSTEM_CONF 0x28 #define TPS_REG_CTRL_CONF 0x29 +#define TPS_REG_BOOT_STATUS 0x2D #define TPS_REG_POWER_STATUS 0x3f #define TPS_REG_RX_IDENTITY_SOP 0x48 #define TPS_REG_DATA_STATUS 0x5f @@ -910,6 +911,17 @@ static int tps25750_apply_patch(struct tps6598x *tps) { int ret; unsigned long timeout; + u64 status = 0; + + ret = tps6598x_block_read(tps, TPS_REG_BOOT_STATUS, &status, 5); + if (ret) + return ret; + /* + * Nothing to be done if the configuration + * is being loaded from EERPOM + */ + if (status & TPS_BOOT_STATUS_I2C_EEPROM_PRESENT) + goto wait_for_app; ret = tps25750_start_patch_burst_mode(tps); if (ret) { @@ -921,6 +933,7 @@ static int tps25750_apply_patch(struct tps6598x *tps) if (ret) return ret; +wait_for_app: timeout = jiffies + msecs_to_jiffies(1000); do { diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h index 527857549d69..a80d0929f3ee 100644 --- a/drivers/usb/typec/tipd/tps6598x.h +++ b/drivers/usb/typec/tipd/tps6598x.h @@ -199,4 +199,7 @@ #define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_A BIT(2) #define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_B (BIT(2) | BIT(1)) +/* BOOT STATUS REG*/ +#define TPS_BOOT_STATUS_I2C_EEPROM_PRESENT BIT(3) + #endif /* __TPS6598X_H__ */