From patchwork Sat Jan 13 11:25:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 762571 Received: from mail-ej1-f45.google.com (mail-ej1-f45.google.com [209.85.218.45]) (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 12BFE20DEA for ; Sat, 13 Jan 2024 11:25:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="lDO0X+7s" Received: by mail-ej1-f45.google.com with SMTP id a640c23a62f3a-a28f66dc7ffso1513323766b.0 for ; Sat, 13 Jan 2024 03:25:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705145105; x=1705749905; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=ygcx92JfSybpIpuBhe77iUnEJaCJ+kNzKK948sWnpeo=; b=lDO0X+7sSo4MDt+SD5RM31UHEMauA4HSOhcT2zAv/yqV74ulCqb0BR5E1TmVO+FP4h a4xDQEUZgAilLuXv5eAj/cxnv+JXGkpeLhrcGeagwqviXsi20Q8lHTzA8Gx5HX+n4nVa NSdhAmt9fcG5afCUYKXFl+hW5BKj6RhOgKmN6LelTxuYa95aCwwAYRHJ+89nHudDZqwA 6uIAv7q4Jmk1gGvychnxb/6Mh/06dW2yd/uat/vz9NpcDTwK3PSYjXJZkRYW19MqMv4u uxe+QvJrIDF9RY+m6bRe1Kspo6XJnkKeC2HkfjrCJvhabqfjOdRbjMxYLMeOxU746bc5 ux/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705145105; x=1705749905; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ygcx92JfSybpIpuBhe77iUnEJaCJ+kNzKK948sWnpeo=; b=Phns9RwB7PY+Q4XysmCfnK2lqFA/QrMUgcJKPZ++P3N+pwRNKZnp6ThDqsj2erHv+r e7InArDOQgz7yhF0DEEyp4MVwyEqVSzeLU2za4cwVW6MQfLlXFLps7pubGG24thWIznj dFATkVcgzlmpvVPz2bjjG29jEaHFD8Ir2vLGcQEg4o16i+e8yDm5GmvKY5cECBYs2UMG lmqRoYqISvSo1OvOzOJodlR9qsJMC/x3AA0EDNAkTagm/rRwPdiqHjLgRNudWaMFIiZG /N3iEfaGwEJAaIaVz5bSRwk6hVTSzy/QLKxyfWUoLBpfmLPj8JGxZ5+7cp5+p60pyV/N f4ww== X-Gm-Message-State: AOJu0YwkxetCYYkh2SkvfI3Z6OnQ+1LQNWwgQwJfA/MVz6mVEheImhZ8 ppeuVQl1RO2u3i/e+oRDaj4= X-Google-Smtp-Source: AGHT+IGMuO4ZvOkuJACksnNkAWbqUX2ErPZvT1cB2QxnkfR7jHPPY0YkoUWx69yk+YGCacb1WbmYxA== X-Received: by 2002:a17:906:6802:b0:a28:e980:8984 with SMTP id k2-20020a170906680200b00a28e9808984mr2593128ejr.18.1705145104951; Sat, 13 Jan 2024 03:25:04 -0800 (PST) Received: from ?IPV6:2a01:c22:6f53:1400:a4e3:d977:260a:1bdd? 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[2a01:c22:6f53:1400:a4e3:d977:260a:1bdd]) by smtp.googlemail.com with ESMTPSA id d26-20020a1709067f1a00b00a27a7fa8691sm2777351ejr.137.2024.01.13.03.25.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 13 Jan 2024 03:25:04 -0800 (PST) Message-ID: <9d256562-3f81-4906-b514-1a90f91c46ae@gmail.com> Date: Sat, 13 Jan 2024 12:25:05 +0100 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v2 1/4] i2c: smbus: Prepare i2c_register_spd for usage on muxed segments Content-Language: en-US From: Heiner Kallweit To: Jean Delvare , Andi Shyti , Peter Rosin , Wolfram Sang , Peter Korsgaard Cc: "linux-i2c@vger.kernel.org" References: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> Autocrypt: addr=hkallweit1@gmail.com; keydata= xsFNBF/0ZFUBEAC0eZyktSE7ZNO1SFXL6cQ4i4g6Ah3mOUIXSB4pCY5kQ6OLKHh0FlOD5/5/ sY7IoIouzOjyFdFPnz4Bl3927ClT567hUJJ+SNaFEiJ9vadI6vZm2gcY4ExdIevYHWe1msJF MVE4yNwdS+UsPeCF/6CQQTzHc+n7DomE7fjJD5J1hOJjqz2XWe71fTvYXzxCFLwXXbBiqDC9 dNqOe5odPsa4TsWZ09T33g5n2nzTJs4Zw8fCy8rLqix/raVsqr8fw5qM66MVtdmEljFaJ9N8 /W56qGCp+H8Igk/F7CjlbWXiOlKHA25mPTmbVp7VlFsvsmMokr/imQr+0nXtmvYVaKEUwY2g 86IU6RAOuA8E0J5bD/BeyZdMyVEtX1kT404UJZekFytJZrDZetwxM/cAH+1fMx4z751WJmxQ J7mIXSPuDfeJhRDt9sGM6aRVfXbZt+wBogxyXepmnlv9K4A13z9DVLdKLrYUiu9/5QEl6fgI kPaXlAZmJsQfoKbmPqCHVRYj1lpQtDM/2/BO6gHASflWUHzwmBVZbS/XRs64uJO8CB3+V3fa cIivllReueGCMsHh6/8wgPAyopXOWOxbLsZ291fmZqIR0L5Y6b2HvdFN1Xhc+YrQ8TKK+Z4R mJRDh0wNQ8Gm89g92/YkHji4jIWlp2fwzCcx5+lZCQ1XdqAiHQARAQABzSZIZWluZXIgS2Fs bHdlaXQgPGhrYWxsd2VpdDFAZ21haWwuY29tPsLBjgQTAQgAOBYhBGxfqY/yOyXjyjJehXLe ig9U8DoMBQJf9GRVAhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEHLeig9U8DoMSycQ AJbfg8HZEK0ljV4M8nvdaiNixWAufrcZ+SD8zhbxl8GispK4F3Yo+20Y3UoZ7FcIidJWUUJL axAOkpI/70YNhlqAPMsuudlAieeYZKjIv1WV5ucNZ3VJ7dC+dlVqQdAr1iD869FZXvy91KhJ wYulyCf+s4T9YgmLC6jLMBZghKIf1uhSd0NzjyCqYWbk2ZxByZHgunEShOhHPHswu3Am0ftt ePaYIHgZs+Vzwfjs8I7EuW/5/f5G9w1vibXxtGY/GXwgGGHRDjFM7RSprGOv4F5eMGh+NFUJ TU9N96PQYMwXVxnQfRXl8O6ffSVmFx4H9rovxWPKobLmqQL0WKLLVvA/aOHCcMKgfyKRcLah 57vGC50Ga8oT2K1g0AhKGkyJo7lGXkMu5yEs0m9O+btqAB261/E3DRxfI1P/tvDZpLJKtq35 dXsj6sjvhgX7VxXhY1wE54uqLLHY3UZQlmH3QF5t80MS7/KhxB1pO1Cpcmkt9hgyzH8+5org +9wWxGUtJWNP7CppY+qvv3SZtKJMKsxqk5coBGwNkMms56z4qfJm2PUtJQGjA65XWdzQACib 2iaDQoBqGZfXRdPT0tC1H5kUJuOX4ll1hI/HBMEFCcO8++Bl2wcrUsAxLzGvhINVJX2DAQaF aNetToazkCnzubKfBOyiTqFJ0b63c5dqziAgzsFNBF/0ZFUBEADF8UEZmKDl1w/UxvjeyAeX kghYkY3bkK6gcIYXdLRfJw12GbvMioSguvVzASVHG8h7NbNjk1yur6AONfbUpXKSNZ0skV8V fG+ppbaY+zQofsSMoj5gP0amwbwvPzVqZCYJai81VobefTX2MZM2Mg/ThBVtGyzV3NeCpnBa 8AX3s9rrX2XUoCibYotbbxx9afZYUFyflOc7kEpc9uJXIdaxS2Z6MnYLHsyVjiU6tzKCiVOU KJevqvzPXJmy0xaOVf7mhFSNQyJTrZpLa+tvB1DQRS08CqYtIMxRrVtC0t0LFeQGly6bOngr ircurWJiJKbSXVstLHgWYiq3/GmCSx/82ObeLO3PftklpRj8d+kFbrvrqBgjWtMH4WtK5uN5 1WJ71hWJfNchKRlaJ3GWy8KolCAoGsQMovn/ZEXxrGs1ndafu47yXOpuDAozoHTBGvuSXSZo ythk/0EAuz5IkwkhYBT1MGIAvNSn9ivE5aRnBazugy0rTRkVggHvt3/7flFHlGVGpBHxFUwb /a4UjJBPtIwa4tWR8B1Ma36S8Jk456k2n1id7M0LQ+eqstmp6Y+UB+pt9NX6t0Slw1NCdYTW gJezWTVKF7pmTdXszXGxlc9kTrVUz04PqPjnYbv5UWuDd2eyzGjrrFOsJEi8OK2d2j4FfF++ AzOMdW09JVqejQARAQABwsF2BBgBCAAgFiEEbF+pj/I7JePKMl6Fct6KD1TwOgwFAl/0ZFUC GwwACgkQct6KD1TwOgxUfg//eAoYc0Vm4NrxymfcY30UjHVD0LgSvU8kUmXxil3qhFPS7KA+ y7tgcKLHOkZkXMX5MLFcS9+SmrAjSBBV8omKoHNo+kfFx/dUAtz0lot8wNGmWb+NcHeKM1eb nwUMOEa1uDdfZeKef/U/2uHBceY7Gc6zPZPWgXghEyQMTH2UhLgeam8yglyO+A6RXCh+s6ak Wje7Vo1wGK4eYxp6pwMPJXLMsI0ii/2k3YPEJPv+yJf90MbYyQSbkTwZhrsokjQEaIfjrIk3 rQRjTve/J62WIO28IbY/mENuGgWehRlTAbhC4BLTZ5uYS0YMQCR7v9UGMWdNWXFyrOB6PjSu Trn9MsPoUc8qI72mVpxEXQDLlrd2ijEWm7Nrf52YMD7hL6rXXuis7R6zY8WnnBhW0uCfhajx q+KuARXC0sDLztcjaS3ayXonpoCPZep2Bd5xqE4Ln8/COCslP7E92W1uf1EcdXXIrx1acg21 H/0Z53okMykVs3a8tECPHIxnre2UxKdTbCEkjkR4V6JyplTS47oWMw3zyI7zkaadfzVFBxk2 lo/Tny+FX1Azea3Ce7oOnRUEZtWSsUidtIjmL8YUQFZYm+JUIgfRmSpMFq8JP4VH43GXpB/S OCrl+/xujzvoUBFV/cHKjEQYBxo+MaiQa1U54ykM2W4DnHb1UiEf5xDkFd4= In-Reply-To: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> If this is an adapter on a muxed bus segment, assume that each segment is connected to a subset of the (> 8) overall memory slots. In this case let's probe the maximum of 8 slots, however stop if the number of overall populated slots is reached. If we're not on a muxed segment and the total number of slots is > 8, report an error, because then not all SPD eeproms can be addressed. Presumably the bus is muxed, but the mux config is missing. Signed-off-by: Heiner Kallweit --- v2: - remove now obsolete comment --- drivers/i2c/i2c-smbus.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c index 74807c6db..44331c5e2 100644 --- a/drivers/i2c/i2c-smbus.c +++ b/drivers/i2c/i2c-smbus.c @@ -309,7 +309,6 @@ EXPORT_SYMBOL_GPL(i2c_free_slave_host_notify_device); * Restrictions to automatic SPD instantiation: * - Only works if all filled slots have the same memory type * - Only works for DDR, DDR2, DDR3 and DDR4 for now - * - Only works on systems with 1 to 8 memory slots */ #if IS_ENABLED(CONFIG_DMI) void i2c_register_spd(struct i2c_adapter *adap) @@ -351,13 +350,18 @@ void i2c_register_spd(struct i2c_adapter *adap) if (!dimm_count) return; - dev_info(&adap->dev, "%d/%d memory slots populated (from DMI)\n", - dimm_count, slot_count); - - if (slot_count > 8) { - dev_warn(&adap->dev, - "Systems with more than 8 memory slots not supported yet, not instantiating SPD\n"); - return; + /* Check whether we're a child adapter on a muxed segment */ + if (i2c_parent_is_i2c_adapter(adap)) { + if (slot_count > 8) + slot_count = 8; + } else { + dev_info(&adap->dev, "%d/%d memory slots populated (from DMI)\n", + dimm_count, slot_count); + if (slot_count > 8) { + dev_err(&adap->dev, + "More than 8 memory slots on a single bus, mux config missing?\n"); + return; + } } /* From patchwork Sat Jan 13 11:27:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 763194 Received: from mail-ed1-f43.google.com (mail-ed1-f43.google.com [209.85.208.43]) (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 4C1B51EF01 for ; Sat, 13 Jan 2024 11:27:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="J5iCttF7" Received: by mail-ed1-f43.google.com with SMTP id 4fb4d7f45d1cf-558b5f4cf29so2279010a12.3 for ; Sat, 13 Jan 2024 03:27:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705145236; x=1705750036; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=4h2ApuHN7PhduW4r0qWjM+0dNAEk/aKHuCc90igY99Y=; b=J5iCttF7wiHst2TjqiD4XPs7tX125I29jxPLBE/bV89w+JUao/vkDdHzx1Phvqmfx6 +Q2pNK9WrOUpAy23Wn58RFgw2ZazFgyOqmJmw4MJrnZYCcvKUexQGuvvfJZm3k6Gy0ze CiXH3kDYvpV7FV14E7LejSUV+KVQ69p8obvy7lUkttbzK1H41gWHrh706C4YOKjC4j+x kosmZkrLx0gqdOBFIubP6g+t5FCSW2IM0VZX6mCXv8qbAv9sS/F/BTplxbnTV58awQH1 egXbBnK6WoGg8JRdwBNdATqB35p4MBRK4dBdgpM5XXgbI2NHEB7ck2uoEMn6BO5FEQNa DKog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705145236; x=1705750036; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=4h2ApuHN7PhduW4r0qWjM+0dNAEk/aKHuCc90igY99Y=; b=T+Vt9Z/hGI+6qZZGzbcnhcWpdMFm1crFritaGK3vQfNWULN+dUDhGnkBvjBpAk16J3 goWFKLq/MTxmk+CrkntS3UErjmCjwQbHEa+fxBOvrL9Yn830qMReT/pkzT8PDHma4Dzh qUrRYCg4+XjFpYZ/t7S3382E1C/MVuG1uSoICIYHOalx8MLwxDa74bS95FQ3FS9XV1AJ pvwCwQOFjEb/Hf0h4lYxO8bPIuYJm7T3QRLNCmeDIRo+ZzDEYWyvrEqWu0IW4lBqniDH 5ybcRRewsnsXItEOOp1slzwSMziNRLV0GBNDqDSmqdVQ2lJIjI9C2HB8uiuOcNlvnDDg tgAA== X-Gm-Message-State: AOJu0Yy+/3uee3op296QiiKuikapubLreCbkPL7uUkNDRtTXD5184K+f uROjY3g8VVrH+tJUjoaC8O4kpFpJuEA= X-Google-Smtp-Source: AGHT+IHAJe18Jk5Fjdi8kvVQ7km2HqtFczsP0JlQkmkgCA0FyYp92yCXqr5W2abLFTGuZy15cNGYwA== X-Received: by 2002:aa7:cccd:0:b0:557:523e:bd3a with SMTP id y13-20020aa7cccd000000b00557523ebd3amr1245524edt.2.1705145236260; Sat, 13 Jan 2024 03:27:16 -0800 (PST) Received: from ?IPV6:2a01:c22:6f53:1400:a4e3:d977:260a:1bdd? 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[2a01:c22:6f53:1400:a4e3:d977:260a:1bdd]) by smtp.googlemail.com with ESMTPSA id u23-20020a05640207d700b005573b375589sm2833313edy.96.2024.01.13.03.27.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 13 Jan 2024 03:27:15 -0800 (PST) Message-ID: <1fb4eb9e-6c7a-4c0c-b90e-4f53dc999b1c@gmail.com> Date: Sat, 13 Jan 2024 12:27:16 +0100 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v2 2/4] i2c: mux: add basic support for calling i2c_register_spd on muxed bus segments Content-Language: en-US From: Heiner Kallweit To: Jean Delvare , Andi Shyti , Peter Rosin , Wolfram Sang , Peter Korsgaard Cc: "linux-i2c@vger.kernel.org" References: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> Autocrypt: addr=hkallweit1@gmail.com; keydata= xsFNBF/0ZFUBEAC0eZyktSE7ZNO1SFXL6cQ4i4g6Ah3mOUIXSB4pCY5kQ6OLKHh0FlOD5/5/ sY7IoIouzOjyFdFPnz4Bl3927ClT567hUJJ+SNaFEiJ9vadI6vZm2gcY4ExdIevYHWe1msJF MVE4yNwdS+UsPeCF/6CQQTzHc+n7DomE7fjJD5J1hOJjqz2XWe71fTvYXzxCFLwXXbBiqDC9 dNqOe5odPsa4TsWZ09T33g5n2nzTJs4Zw8fCy8rLqix/raVsqr8fw5qM66MVtdmEljFaJ9N8 /W56qGCp+H8Igk/F7CjlbWXiOlKHA25mPTmbVp7VlFsvsmMokr/imQr+0nXtmvYVaKEUwY2g 86IU6RAOuA8E0J5bD/BeyZdMyVEtX1kT404UJZekFytJZrDZetwxM/cAH+1fMx4z751WJmxQ J7mIXSPuDfeJhRDt9sGM6aRVfXbZt+wBogxyXepmnlv9K4A13z9DVLdKLrYUiu9/5QEl6fgI kPaXlAZmJsQfoKbmPqCHVRYj1lpQtDM/2/BO6gHASflWUHzwmBVZbS/XRs64uJO8CB3+V3fa cIivllReueGCMsHh6/8wgPAyopXOWOxbLsZ291fmZqIR0L5Y6b2HvdFN1Xhc+YrQ8TKK+Z4R mJRDh0wNQ8Gm89g92/YkHji4jIWlp2fwzCcx5+lZCQ1XdqAiHQARAQABzSZIZWluZXIgS2Fs bHdlaXQgPGhrYWxsd2VpdDFAZ21haWwuY29tPsLBjgQTAQgAOBYhBGxfqY/yOyXjyjJehXLe ig9U8DoMBQJf9GRVAhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEHLeig9U8DoMSycQ AJbfg8HZEK0ljV4M8nvdaiNixWAufrcZ+SD8zhbxl8GispK4F3Yo+20Y3UoZ7FcIidJWUUJL axAOkpI/70YNhlqAPMsuudlAieeYZKjIv1WV5ucNZ3VJ7dC+dlVqQdAr1iD869FZXvy91KhJ wYulyCf+s4T9YgmLC6jLMBZghKIf1uhSd0NzjyCqYWbk2ZxByZHgunEShOhHPHswu3Am0ftt ePaYIHgZs+Vzwfjs8I7EuW/5/f5G9w1vibXxtGY/GXwgGGHRDjFM7RSprGOv4F5eMGh+NFUJ TU9N96PQYMwXVxnQfRXl8O6ffSVmFx4H9rovxWPKobLmqQL0WKLLVvA/aOHCcMKgfyKRcLah 57vGC50Ga8oT2K1g0AhKGkyJo7lGXkMu5yEs0m9O+btqAB261/E3DRxfI1P/tvDZpLJKtq35 dXsj6sjvhgX7VxXhY1wE54uqLLHY3UZQlmH3QF5t80MS7/KhxB1pO1Cpcmkt9hgyzH8+5org +9wWxGUtJWNP7CppY+qvv3SZtKJMKsxqk5coBGwNkMms56z4qfJm2PUtJQGjA65XWdzQACib 2iaDQoBqGZfXRdPT0tC1H5kUJuOX4ll1hI/HBMEFCcO8++Bl2wcrUsAxLzGvhINVJX2DAQaF aNetToazkCnzubKfBOyiTqFJ0b63c5dqziAgzsFNBF/0ZFUBEADF8UEZmKDl1w/UxvjeyAeX kghYkY3bkK6gcIYXdLRfJw12GbvMioSguvVzASVHG8h7NbNjk1yur6AONfbUpXKSNZ0skV8V fG+ppbaY+zQofsSMoj5gP0amwbwvPzVqZCYJai81VobefTX2MZM2Mg/ThBVtGyzV3NeCpnBa 8AX3s9rrX2XUoCibYotbbxx9afZYUFyflOc7kEpc9uJXIdaxS2Z6MnYLHsyVjiU6tzKCiVOU KJevqvzPXJmy0xaOVf7mhFSNQyJTrZpLa+tvB1DQRS08CqYtIMxRrVtC0t0LFeQGly6bOngr ircurWJiJKbSXVstLHgWYiq3/GmCSx/82ObeLO3PftklpRj8d+kFbrvrqBgjWtMH4WtK5uN5 1WJ71hWJfNchKRlaJ3GWy8KolCAoGsQMovn/ZEXxrGs1ndafu47yXOpuDAozoHTBGvuSXSZo ythk/0EAuz5IkwkhYBT1MGIAvNSn9ivE5aRnBazugy0rTRkVggHvt3/7flFHlGVGpBHxFUwb /a4UjJBPtIwa4tWR8B1Ma36S8Jk456k2n1id7M0LQ+eqstmp6Y+UB+pt9NX6t0Slw1NCdYTW gJezWTVKF7pmTdXszXGxlc9kTrVUz04PqPjnYbv5UWuDd2eyzGjrrFOsJEi8OK2d2j4FfF++ AzOMdW09JVqejQARAQABwsF2BBgBCAAgFiEEbF+pj/I7JePKMl6Fct6KD1TwOgwFAl/0ZFUC GwwACgkQct6KD1TwOgxUfg//eAoYc0Vm4NrxymfcY30UjHVD0LgSvU8kUmXxil3qhFPS7KA+ y7tgcKLHOkZkXMX5MLFcS9+SmrAjSBBV8omKoHNo+kfFx/dUAtz0lot8wNGmWb+NcHeKM1eb nwUMOEa1uDdfZeKef/U/2uHBceY7Gc6zPZPWgXghEyQMTH2UhLgeam8yglyO+A6RXCh+s6ak Wje7Vo1wGK4eYxp6pwMPJXLMsI0ii/2k3YPEJPv+yJf90MbYyQSbkTwZhrsokjQEaIfjrIk3 rQRjTve/J62WIO28IbY/mENuGgWehRlTAbhC4BLTZ5uYS0YMQCR7v9UGMWdNWXFyrOB6PjSu Trn9MsPoUc8qI72mVpxEXQDLlrd2ijEWm7Nrf52YMD7hL6rXXuis7R6zY8WnnBhW0uCfhajx q+KuARXC0sDLztcjaS3ayXonpoCPZep2Bd5xqE4Ln8/COCslP7E92W1uf1EcdXXIrx1acg21 H/0Z53okMykVs3a8tECPHIxnre2UxKdTbCEkjkR4V6JyplTS47oWMw3zyI7zkaadfzVFBxk2 lo/Tny+FX1Azea3Ce7oOnRUEZtWSsUidtIjmL8YUQFZYm+JUIgfRmSpMFq8JP4VH43GXpB/S OCrl+/xujzvoUBFV/cHKjEQYBxo+MaiQa1U54ykM2W4DnHb1UiEf5xDkFd4= In-Reply-To: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> This extension allows mux drivers to instruct i2c_mux_add_adapter to call i2c_register_spd. First user of this feature will be gpio mux. Note: In order to avoid a link error we have to ensure that I2C_SMBUS=y if I2C_MUX=y. Signed-off-by: Heiner Kallweit --- v2: - Select I2C_SMBUS to avoid a link error if I2C_MUX=y and I2C_SMBUS=m --- drivers/i2c/Kconfig | 1 + drivers/i2c/i2c-mux.c | 4 ++++ include/linux/i2c-mux.h | 1 + 3 files changed, 6 insertions(+) diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 9388823bb..f57a4d3fe 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -61,6 +61,7 @@ config I2C_CHARDEV config I2C_MUX tristate "I2C bus multiplexing support" + select I2C_SMBUS help Say Y here if you want the I2C core to support the ability to handle multiplexed I2C bus topologies, by presenting each diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c index 57ff09f18..ada9c764f 100644 --- a/drivers/i2c/i2c-mux.c +++ b/drivers/i2c/i2c-mux.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -429,6 +430,9 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc, dev_info(&parent->dev, "Added multiplexed i2c bus %d\n", i2c_adapter_id(&priv->adap)); + if (muxc->register_spd) + i2c_register_spd(&priv->adap); + muxc->adapter[muxc->num_adapters++] = &priv->adap; return 0; diff --git a/include/linux/i2c-mux.h b/include/linux/i2c-mux.h index 98ef73b7c..ec51d9bc4 100644 --- a/include/linux/i2c-mux.h +++ b/include/linux/i2c-mux.h @@ -21,6 +21,7 @@ struct i2c_mux_core { unsigned int mux_locked:1; unsigned int arbitrator:1; unsigned int gate:1; + unsigned int register_spd:1; void *priv; From patchwork Sat Jan 13 11:28:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 762570 Received: from mail-ed1-f51.google.com (mail-ed1-f51.google.com [209.85.208.51]) (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 2CD8F1EF01 for ; Sat, 13 Jan 2024 11:28:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="iqdkTSDq" Received: by mail-ed1-f51.google.com with SMTP id 4fb4d7f45d1cf-5590f5fa93cso121981a12.0 for ; Sat, 13 Jan 2024 03:28:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705145281; x=1705750081; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=zUha32C7Up/DhjYELAbnhrN1gcffSzH1UVEunFTRUz4=; b=iqdkTSDqre3Ye04r93i2FXf6ntx87cGp93Rg/+4lI5xV2WJKqi7HC6UATuJleqV2/N z6edpNusYLxej2WUdf/F1tTSRgpPvcegjZIKRxoqxYxYRWtsxwhyhcnfuw8fozVe30VC S4a9DlrwdsgZvcTK7ZE1xRC5NXSu6SDCPH/50aEhCk7pk1Ez3v5S4KJikHjglJdbGeFt QojSI+ZayZhb7e5bWj2/MtYV2Nu9FPbfS/ZHz526hDOXlmmTJ7Gp1o8MGnEAAXmxs7SZ asFmuUOioD/4QdogpOtuKQFJjCCz+TUo02578/UpP7fonMwnQiFs+Mub4PdKF2z0jP4e mb0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705145281; x=1705750081; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=zUha32C7Up/DhjYELAbnhrN1gcffSzH1UVEunFTRUz4=; b=nfkNHGjopjF+Et5CWGcQduLVgd+iR7B6Cq8ucbcTVxirHnwcRk/nAWMVGqMvei8Edj m6pFQ9VoJldNpPK499xKut1wLtIXBvTj5Sz4cZqLrNLLTqooksQIh/MS21apBvjb+rth mcInzdYAp3GAltZxqelmCOohHIvzXGEQ76n58QDKYIiy791ufbiUgG5tDJvIPIyCeSGD WGzPaHMHzKjvKABOgl36eVizS8X5tDsRt0xr58oVVCUiW6qdtJ861sXxkiWdtKNfO4LN cFfqCuHbNvjNsNToTnxFcoJedCecqbgkW83Soy4sTpSy8BjNgEeOKwVRe1jTlw4+35OQ TRpQ== X-Gm-Message-State: AOJu0Yxmkh1XhotVSoaKDxfwBOyzWhH5GZ7O7Z1rlMAHqXUzo/7F3wmT OwcEBC7gl9v9ZWtGchBXJk4+EjH6ocg= X-Google-Smtp-Source: AGHT+IH9Jf9k2sxaq/HZ/9IaDk+Z3QJVKg7qjMxx6VzS877/lQGKZdEIWkYs/rKcPb9hiRfdzUrqqA== X-Received: by 2002:a05:6402:1745:b0:555:3b98:7540 with SMTP id v5-20020a056402174500b005553b987540mr1261975edx.33.1705145281265; Sat, 13 Jan 2024 03:28:01 -0800 (PST) Received: from ?IPV6:2a01:c22:6f53:1400:a4e3:d977:260a:1bdd? 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[2a01:c22:6f53:1400:a4e3:d977:260a:1bdd]) by smtp.googlemail.com with ESMTPSA id u23-20020a05640207d700b005573b375589sm2833313edy.96.2024.01.13.03.28.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 13 Jan 2024 03:28:00 -0800 (PST) Message-ID: Date: Sat, 13 Jan 2024 12:28:01 +0100 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v2 3/4] i2c: mux: gpio: Allow to call i2c_register_spd on a muxed segment Content-Language: en-US From: Heiner Kallweit To: Jean Delvare , Andi Shyti , Peter Rosin , Wolfram Sang , Peter Korsgaard Cc: "linux-i2c@vger.kernel.org" References: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> Autocrypt: addr=hkallweit1@gmail.com; keydata= xsFNBF/0ZFUBEAC0eZyktSE7ZNO1SFXL6cQ4i4g6Ah3mOUIXSB4pCY5kQ6OLKHh0FlOD5/5/ sY7IoIouzOjyFdFPnz4Bl3927ClT567hUJJ+SNaFEiJ9vadI6vZm2gcY4ExdIevYHWe1msJF MVE4yNwdS+UsPeCF/6CQQTzHc+n7DomE7fjJD5J1hOJjqz2XWe71fTvYXzxCFLwXXbBiqDC9 dNqOe5odPsa4TsWZ09T33g5n2nzTJs4Zw8fCy8rLqix/raVsqr8fw5qM66MVtdmEljFaJ9N8 /W56qGCp+H8Igk/F7CjlbWXiOlKHA25mPTmbVp7VlFsvsmMokr/imQr+0nXtmvYVaKEUwY2g 86IU6RAOuA8E0J5bD/BeyZdMyVEtX1kT404UJZekFytJZrDZetwxM/cAH+1fMx4z751WJmxQ J7mIXSPuDfeJhRDt9sGM6aRVfXbZt+wBogxyXepmnlv9K4A13z9DVLdKLrYUiu9/5QEl6fgI kPaXlAZmJsQfoKbmPqCHVRYj1lpQtDM/2/BO6gHASflWUHzwmBVZbS/XRs64uJO8CB3+V3fa cIivllReueGCMsHh6/8wgPAyopXOWOxbLsZ291fmZqIR0L5Y6b2HvdFN1Xhc+YrQ8TKK+Z4R mJRDh0wNQ8Gm89g92/YkHji4jIWlp2fwzCcx5+lZCQ1XdqAiHQARAQABzSZIZWluZXIgS2Fs bHdlaXQgPGhrYWxsd2VpdDFAZ21haWwuY29tPsLBjgQTAQgAOBYhBGxfqY/yOyXjyjJehXLe ig9U8DoMBQJf9GRVAhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEHLeig9U8DoMSycQ AJbfg8HZEK0ljV4M8nvdaiNixWAufrcZ+SD8zhbxl8GispK4F3Yo+20Y3UoZ7FcIidJWUUJL axAOkpI/70YNhlqAPMsuudlAieeYZKjIv1WV5ucNZ3VJ7dC+dlVqQdAr1iD869FZXvy91KhJ wYulyCf+s4T9YgmLC6jLMBZghKIf1uhSd0NzjyCqYWbk2ZxByZHgunEShOhHPHswu3Am0ftt ePaYIHgZs+Vzwfjs8I7EuW/5/f5G9w1vibXxtGY/GXwgGGHRDjFM7RSprGOv4F5eMGh+NFUJ TU9N96PQYMwXVxnQfRXl8O6ffSVmFx4H9rovxWPKobLmqQL0WKLLVvA/aOHCcMKgfyKRcLah 57vGC50Ga8oT2K1g0AhKGkyJo7lGXkMu5yEs0m9O+btqAB261/E3DRxfI1P/tvDZpLJKtq35 dXsj6sjvhgX7VxXhY1wE54uqLLHY3UZQlmH3QF5t80MS7/KhxB1pO1Cpcmkt9hgyzH8+5org +9wWxGUtJWNP7CppY+qvv3SZtKJMKsxqk5coBGwNkMms56z4qfJm2PUtJQGjA65XWdzQACib 2iaDQoBqGZfXRdPT0tC1H5kUJuOX4ll1hI/HBMEFCcO8++Bl2wcrUsAxLzGvhINVJX2DAQaF aNetToazkCnzubKfBOyiTqFJ0b63c5dqziAgzsFNBF/0ZFUBEADF8UEZmKDl1w/UxvjeyAeX kghYkY3bkK6gcIYXdLRfJw12GbvMioSguvVzASVHG8h7NbNjk1yur6AONfbUpXKSNZ0skV8V fG+ppbaY+zQofsSMoj5gP0amwbwvPzVqZCYJai81VobefTX2MZM2Mg/ThBVtGyzV3NeCpnBa 8AX3s9rrX2XUoCibYotbbxx9afZYUFyflOc7kEpc9uJXIdaxS2Z6MnYLHsyVjiU6tzKCiVOU KJevqvzPXJmy0xaOVf7mhFSNQyJTrZpLa+tvB1DQRS08CqYtIMxRrVtC0t0LFeQGly6bOngr ircurWJiJKbSXVstLHgWYiq3/GmCSx/82ObeLO3PftklpRj8d+kFbrvrqBgjWtMH4WtK5uN5 1WJ71hWJfNchKRlaJ3GWy8KolCAoGsQMovn/ZEXxrGs1ndafu47yXOpuDAozoHTBGvuSXSZo ythk/0EAuz5IkwkhYBT1MGIAvNSn9ivE5aRnBazugy0rTRkVggHvt3/7flFHlGVGpBHxFUwb /a4UjJBPtIwa4tWR8B1Ma36S8Jk456k2n1id7M0LQ+eqstmp6Y+UB+pt9NX6t0Slw1NCdYTW gJezWTVKF7pmTdXszXGxlc9kTrVUz04PqPjnYbv5UWuDd2eyzGjrrFOsJEi8OK2d2j4FfF++ AzOMdW09JVqejQARAQABwsF2BBgBCAAgFiEEbF+pj/I7JePKMl6Fct6KD1TwOgwFAl/0ZFUC GwwACgkQct6KD1TwOgxUfg//eAoYc0Vm4NrxymfcY30UjHVD0LgSvU8kUmXxil3qhFPS7KA+ y7tgcKLHOkZkXMX5MLFcS9+SmrAjSBBV8omKoHNo+kfFx/dUAtz0lot8wNGmWb+NcHeKM1eb nwUMOEa1uDdfZeKef/U/2uHBceY7Gc6zPZPWgXghEyQMTH2UhLgeam8yglyO+A6RXCh+s6ak Wje7Vo1wGK4eYxp6pwMPJXLMsI0ii/2k3YPEJPv+yJf90MbYyQSbkTwZhrsokjQEaIfjrIk3 rQRjTve/J62WIO28IbY/mENuGgWehRlTAbhC4BLTZ5uYS0YMQCR7v9UGMWdNWXFyrOB6PjSu Trn9MsPoUc8qI72mVpxEXQDLlrd2ijEWm7Nrf52YMD7hL6rXXuis7R6zY8WnnBhW0uCfhajx q+KuARXC0sDLztcjaS3ayXonpoCPZep2Bd5xqE4Ln8/COCslP7E92W1uf1EcdXXIrx1acg21 H/0Z53okMykVs3a8tECPHIxnre2UxKdTbCEkjkR4V6JyplTS47oWMw3zyI7zkaadfzVFBxk2 lo/Tny+FX1Azea3Ce7oOnRUEZtWSsUidtIjmL8YUQFZYm+JUIgfRmSpMFq8JP4VH43GXpB/S OCrl+/xujzvoUBFV/cHKjEQYBxo+MaiQa1U54ykM2W4DnHb1UiEf5xDkFd4= In-Reply-To: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> Allow the gpio-based multiplexer to call i2c_register_spd on muxed segments. First user will be i801. Signed-off-by: Heiner Kallweit --- drivers/i2c/muxes/i2c-mux-gpio.c | 1 + include/linux/platform_data/i2c-mux-gpio.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 6b979a0a6..c841407c7 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -161,6 +161,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) } mux->gpios = muxc->priv; muxc->priv = mux; + muxc->register_spd = mux->data.register_spd; platform_set_drvdata(pdev, muxc); diff --git a/include/linux/platform_data/i2c-mux-gpio.h b/include/linux/platform_data/i2c-mux-gpio.h index 5e4c2c272..cbeb74f92 100644 --- a/include/linux/platform_data/i2c-mux-gpio.h +++ b/include/linux/platform_data/i2c-mux-gpio.h @@ -20,6 +20,7 @@ * @n_values: Number of multiplexer positions (busses to instantiate) * @classes: Optional I2C auto-detection classes * @idle: Bitmask to write to MUX when idle or GPIO_I2CMUX_NO_IDLE if not used + * @register_spd: call i2c_register_spd for the child adapters on muxed segments */ struct i2c_mux_gpio_platform_data { int parent; @@ -28,6 +29,7 @@ struct i2c_mux_gpio_platform_data { int n_values; const unsigned *classes; unsigned idle; + unsigned int register_spd:1; }; #endif /* _LINUX_I2C_MUX_GPIO_H */ From patchwork Sat Jan 13 11:28:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 763193 Received: from mail-ed1-f47.google.com (mail-ed1-f47.google.com [209.85.208.47]) (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 6D265210E6 for ; Sat, 13 Jan 2024 11:28:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VrTJMdUz" Received: by mail-ed1-f47.google.com with SMTP id 4fb4d7f45d1cf-5537dd673e5so5918028a12.0 for ; Sat, 13 Jan 2024 03:28:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705145322; x=1705750122; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=eZSGjavzMUfm362ryRQkY7Uf/93vytn3D/7BnA+MQHI=; b=VrTJMdUz3rxOxcm4I7Mq/z1TPnhQFNfQdGvaoyBflC8Fg9oTDik8VFs68WrrHFsGwT n9kBflvepQJpxSmUpfzsnSOKyE+1zK5rs1NlfLbSDwOtsn+duwVWiHABGXfGL5DJ2k7O aglUyfyYRyVlrzizuPeYvrSE0BjPbPeE705eNRtVDP0erQAgvaK/kvyVwrhNHyWiNQYC 87CtMC/yMtaTOyotrVbgIxo6yvOL0H+nSmz4E097j9zSWPWO8iAxoT26osSxG8wD3LiV iP/BhymbmIHUaIJbHAqP1VGxQexPemkA7NnVU/0p+CoPaS99NtCpd6T2dYh3CPn1bZme FBSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705145322; x=1705750122; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=eZSGjavzMUfm362ryRQkY7Uf/93vytn3D/7BnA+MQHI=; b=Xx9WI/ZMtSPiSTqrryR9H1MeCE6/1/EYKZIxy90A/ZsWNwbDDF5jkvHJRAStZ/Z/42 LZnw/bL6b1eOCLHQA5jsIHyYN4HcrBW9zjk/tJHOwWgPYYBnRII3SPfvGTglKpM2ekc5 svzRv4bPEPuUWNhKc0s7/SlVxxMwjfYoc76+ssV+ii+i+/VVoIgrq6VZIXlgBGKWEvQU PaMQRO8+1JeMTfe9ud9MkNEWM/bv46fzut09CFlGhhwLafqjMvdAdDKJAwhRYnggkNIO nedfG2G1+WCePF4wC/B4yncNutBwc/64psuWAOdx2JvewrO0nBRme0dgshw64nqvp51U WDlQ== X-Gm-Message-State: AOJu0Yxpnj1rSiwkh+CJl0eU6+kjoWWVRWGbPRTi8Hl8egnHP9eMa9eg 8RCEdeo0jrl0ewdMfcBHhN8= X-Google-Smtp-Source: AGHT+IEa4lhUcKSp1g9zqS47f1yv5ZzNFvE0JM+IZJfYvxUQa+c5oRG8FaAyJ+qoM6k8KLrNTR+bYg== X-Received: by 2002:aa7:d4cb:0:b0:558:6000:6b0f with SMTP id t11-20020aa7d4cb000000b0055860006b0fmr1533398edr.74.1705145322506; Sat, 13 Jan 2024 03:28:42 -0800 (PST) Received: from ?IPV6:2a01:c22:6f53:1400:a4e3:d977:260a:1bdd? 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[2a01:c22:6f53:1400:a4e3:d977:260a:1bdd]) by smtp.googlemail.com with ESMTPSA id u23-20020a05640207d700b005573b375589sm2833313edy.96.2024.01.13.03.28.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 13 Jan 2024 03:28:42 -0800 (PST) Message-ID: <0e3b68f7-f287-48bf-b087-09ec137a48bb@gmail.com> Date: Sat, 13 Jan 2024 12:28:42 +0100 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v2 4/4] i2c: i801: Call i2c_register_spd() on muxed bus segments Content-Language: en-US From: Heiner Kallweit To: Jean Delvare , Andi Shyti , Peter Rosin , Wolfram Sang , Peter Korsgaard Cc: "linux-i2c@vger.kernel.org" References: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> Autocrypt: addr=hkallweit1@gmail.com; keydata= xsFNBF/0ZFUBEAC0eZyktSE7ZNO1SFXL6cQ4i4g6Ah3mOUIXSB4pCY5kQ6OLKHh0FlOD5/5/ sY7IoIouzOjyFdFPnz4Bl3927ClT567hUJJ+SNaFEiJ9vadI6vZm2gcY4ExdIevYHWe1msJF MVE4yNwdS+UsPeCF/6CQQTzHc+n7DomE7fjJD5J1hOJjqz2XWe71fTvYXzxCFLwXXbBiqDC9 dNqOe5odPsa4TsWZ09T33g5n2nzTJs4Zw8fCy8rLqix/raVsqr8fw5qM66MVtdmEljFaJ9N8 /W56qGCp+H8Igk/F7CjlbWXiOlKHA25mPTmbVp7VlFsvsmMokr/imQr+0nXtmvYVaKEUwY2g 86IU6RAOuA8E0J5bD/BeyZdMyVEtX1kT404UJZekFytJZrDZetwxM/cAH+1fMx4z751WJmxQ J7mIXSPuDfeJhRDt9sGM6aRVfXbZt+wBogxyXepmnlv9K4A13z9DVLdKLrYUiu9/5QEl6fgI kPaXlAZmJsQfoKbmPqCHVRYj1lpQtDM/2/BO6gHASflWUHzwmBVZbS/XRs64uJO8CB3+V3fa cIivllReueGCMsHh6/8wgPAyopXOWOxbLsZ291fmZqIR0L5Y6b2HvdFN1Xhc+YrQ8TKK+Z4R mJRDh0wNQ8Gm89g92/YkHji4jIWlp2fwzCcx5+lZCQ1XdqAiHQARAQABzSZIZWluZXIgS2Fs bHdlaXQgPGhrYWxsd2VpdDFAZ21haWwuY29tPsLBjgQTAQgAOBYhBGxfqY/yOyXjyjJehXLe ig9U8DoMBQJf9GRVAhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEHLeig9U8DoMSycQ AJbfg8HZEK0ljV4M8nvdaiNixWAufrcZ+SD8zhbxl8GispK4F3Yo+20Y3UoZ7FcIidJWUUJL axAOkpI/70YNhlqAPMsuudlAieeYZKjIv1WV5ucNZ3VJ7dC+dlVqQdAr1iD869FZXvy91KhJ wYulyCf+s4T9YgmLC6jLMBZghKIf1uhSd0NzjyCqYWbk2ZxByZHgunEShOhHPHswu3Am0ftt ePaYIHgZs+Vzwfjs8I7EuW/5/f5G9w1vibXxtGY/GXwgGGHRDjFM7RSprGOv4F5eMGh+NFUJ TU9N96PQYMwXVxnQfRXl8O6ffSVmFx4H9rovxWPKobLmqQL0WKLLVvA/aOHCcMKgfyKRcLah 57vGC50Ga8oT2K1g0AhKGkyJo7lGXkMu5yEs0m9O+btqAB261/E3DRxfI1P/tvDZpLJKtq35 dXsj6sjvhgX7VxXhY1wE54uqLLHY3UZQlmH3QF5t80MS7/KhxB1pO1Cpcmkt9hgyzH8+5org +9wWxGUtJWNP7CppY+qvv3SZtKJMKsxqk5coBGwNkMms56z4qfJm2PUtJQGjA65XWdzQACib 2iaDQoBqGZfXRdPT0tC1H5kUJuOX4ll1hI/HBMEFCcO8++Bl2wcrUsAxLzGvhINVJX2DAQaF aNetToazkCnzubKfBOyiTqFJ0b63c5dqziAgzsFNBF/0ZFUBEADF8UEZmKDl1w/UxvjeyAeX kghYkY3bkK6gcIYXdLRfJw12GbvMioSguvVzASVHG8h7NbNjk1yur6AONfbUpXKSNZ0skV8V fG+ppbaY+zQofsSMoj5gP0amwbwvPzVqZCYJai81VobefTX2MZM2Mg/ThBVtGyzV3NeCpnBa 8AX3s9rrX2XUoCibYotbbxx9afZYUFyflOc7kEpc9uJXIdaxS2Z6MnYLHsyVjiU6tzKCiVOU KJevqvzPXJmy0xaOVf7mhFSNQyJTrZpLa+tvB1DQRS08CqYtIMxRrVtC0t0LFeQGly6bOngr ircurWJiJKbSXVstLHgWYiq3/GmCSx/82ObeLO3PftklpRj8d+kFbrvrqBgjWtMH4WtK5uN5 1WJ71hWJfNchKRlaJ3GWy8KolCAoGsQMovn/ZEXxrGs1ndafu47yXOpuDAozoHTBGvuSXSZo ythk/0EAuz5IkwkhYBT1MGIAvNSn9ivE5aRnBazugy0rTRkVggHvt3/7flFHlGVGpBHxFUwb /a4UjJBPtIwa4tWR8B1Ma36S8Jk456k2n1id7M0LQ+eqstmp6Y+UB+pt9NX6t0Slw1NCdYTW gJezWTVKF7pmTdXszXGxlc9kTrVUz04PqPjnYbv5UWuDd2eyzGjrrFOsJEi8OK2d2j4FfF++ AzOMdW09JVqejQARAQABwsF2BBgBCAAgFiEEbF+pj/I7JePKMl6Fct6KD1TwOgwFAl/0ZFUC GwwACgkQct6KD1TwOgxUfg//eAoYc0Vm4NrxymfcY30UjHVD0LgSvU8kUmXxil3qhFPS7KA+ y7tgcKLHOkZkXMX5MLFcS9+SmrAjSBBV8omKoHNo+kfFx/dUAtz0lot8wNGmWb+NcHeKM1eb nwUMOEa1uDdfZeKef/U/2uHBceY7Gc6zPZPWgXghEyQMTH2UhLgeam8yglyO+A6RXCh+s6ak Wje7Vo1wGK4eYxp6pwMPJXLMsI0ii/2k3YPEJPv+yJf90MbYyQSbkTwZhrsokjQEaIfjrIk3 rQRjTve/J62WIO28IbY/mENuGgWehRlTAbhC4BLTZ5uYS0YMQCR7v9UGMWdNWXFyrOB6PjSu Trn9MsPoUc8qI72mVpxEXQDLlrd2ijEWm7Nrf52YMD7hL6rXXuis7R6zY8WnnBhW0uCfhajx q+KuARXC0sDLztcjaS3ayXonpoCPZep2Bd5xqE4Ln8/COCslP7E92W1uf1EcdXXIrx1acg21 H/0Z53okMykVs3a8tECPHIxnre2UxKdTbCEkjkR4V6JyplTS47oWMw3zyI7zkaadfzVFBxk2 lo/Tny+FX1Azea3Ce7oOnRUEZtWSsUidtIjmL8YUQFZYm+JUIgfRmSpMFq8JP4VH43GXpB/S OCrl+/xujzvoUBFV/cHKjEQYBxo+MaiQa1U54ykM2W4DnHb1UiEf5xDkFd4= In-Reply-To: <9f37f64e-f5b8-4928-8716-6d2846c2688a@gmail.com> Instruct child adapters to call i2c_register_spd() for each muxed bus segment. Signed-off-by: Heiner Kallweit --- drivers/i2c/busses/i2c-i801.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 3932e8d96..15c93ec5b 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1404,6 +1404,7 @@ static void i801_add_mux(struct i801_priv *priv) gpio_data.n_values = mux_config->n_values; gpio_data.classes = mux_config->classes; gpio_data.idle = I2C_MUX_GPIO_NO_IDLE; + gpio_data.register_spd = 1; /* Register GPIO descriptor lookup table */ lookup = devm_kzalloc(dev,