From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 783A81F941; Sun, 27 Apr 2025 19:08:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745780931; cv=none; b=nGs1i4XbYCgbxZaPNXdcmOcvluedp2gXPOSs59rkyd8c+Kk+3yChqkXz9VbZQdbr9xi9bkezhUD2LMDiWDQGhXE2Rl499atfBsv33daPBKGRDWdKMb5iiF1nOpiHF0unZvNgLwgfa5nM2rPcYlD1GXJaiKFzK+oLFuFVI5bryCE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745780931; c=relaxed/simple; bh=afv3Mgyi1BfkBpf0MStrpUY87jKDJnug026Jb+53Dmw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=g2WkHurnr5eKe7DPT449jPaaJMK4pApszXF1Waf1KCb1UVf4CkB1zhrkHlaAMbm1f7dBKsWC6b1r2+dCbeLgtnDUFXfJdBISbXw5++/2IQni2YT2KUM3pm6CV1qgPOpqUGZkIVIVufiVThK3F/XUCGybgfz3FAeioOPz36pYOr0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dRI5jv3+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dRI5jv3+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 96781C4CEE3; Sun, 27 Apr 2025 19:08:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745780930; bh=afv3Mgyi1BfkBpf0MStrpUY87jKDJnug026Jb+53Dmw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=dRI5jv3+R+XkkHJqTVPyGynT/8ucmcw5oB4wixNNn5MYXDhzgube+7PSbOhh62SxO vW6ICFGJW4U9SCawCu1XpZv2enitVdEwC7v4ef0Lxn3CWJKXhAA4Bj+0WQSJuVCUZj /iZdExKjvwYkiAz3ddlzVsKkCzDeWCNddmhd1apjsNQSEMdvY4xGNF0ldj3+IsxGkC koi+gzksl52E1xOqra1CMS5LT44nymzXiHPFa1YO9kK8UHJrKusrrECI+P0QC43aQr GbEju1ybSQrvy7jtA4Q+1gkpYLXfCl1irU+JdWH2F1oAoskxyOCJ2Zcq8jx2kpWrql E98+mwCN4ecfQ== Message-ID: Date: Sun, 27 Apr 2025 21:08:45 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 2/5] dt-bindings: pci: cadence: Extend compatible for new EP configurations To: Manikandan Karunakaran Pillai , Hans Zhang , Conor Dooley Cc: "bhelgaas@google.com" , "lpieralisi@kernel.org" , "kw@linux.com" , "manivannan.sadhasivam@linaro.org" , "robh@kernel.org" , "krzk+dt@kernel.org" , "conor+dt@kernel.org" , "peter.chen@cixtech.com" , "linux-pci@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: <20250424010445.2260090-1-hans.zhang@cixtech.com> <20250424010445.2260090-3-hans.zhang@cixtech.com> <20250424-elm-magma-b791798477ab@spud> <20250424-proposal-decrease-ba384a37efa6@spud> <20250425-drained-flyover-4275720a1f5a@spud> <5334e87c-edf3-4dd9-a6d5-265cd279dbdc@cixtech.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; keydata= xsFNBFVDQq4BEAC6KeLOfFsAvFMBsrCrJ2bCalhPv5+KQF2PS2+iwZI8BpRZoV+Bd5kWvN79 cFgcqTTuNHjAvxtUG8pQgGTHAObYs6xeYJtjUH0ZX6ndJ33FJYf5V3yXqqjcZ30FgHzJCFUu JMp7PSyMPzpUXfU12yfcRYVEMQrmplNZssmYhiTeVicuOOypWugZKVLGNm0IweVCaZ/DJDIH gNbpvVwjcKYrx85m9cBVEBUGaQP6AT7qlVCkrf50v8bofSIyVa2xmubbAwwFA1oxoOusjPIE J3iadrwpFvsZjF5uHAKS+7wHLoW9hVzOnLbX6ajk5Hf8Pb1m+VH/E8bPBNNYKkfTtypTDUCj NYcd27tjnXfG+SDs/EXNUAIRefCyvaRG7oRYF3Ec+2RgQDRnmmjCjoQNbFrJvJkFHlPeHaeS BosGY+XWKydnmsfY7SSnjAzLUGAFhLd/XDVpb1Een2XucPpKvt9ORF+48gy12FA5GduRLhQU vK4tU7ojoem/G23PcowM1CwPurC8sAVsQb9KmwTGh7rVz3ks3w/zfGBy3+WmLg++C2Wct6nM Pd8/6CBVjEWqD06/RjI2AnjIq5fSEH/BIfXXfC68nMp9BZoy3So4ZsbOlBmtAPvMYX6U8VwD TNeBxJu5Ex0Izf1NV9CzC3nNaFUYOY8KfN01X5SExAoVTr09ewARAQABzSVLcnp5c3p0b2Yg S296bG93c2tpIDxrcnprQGtlcm5lbC5vcmc+wsGVBBMBCgA/AhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgBYhBJvQfg4MUfjVlne3VBuTQ307QWKbBQJgPO8PBQkUX63hAAoJEBuTQ307 QWKbBn8P+QFxwl7pDsAKR1InemMAmuykCHl+XgC0LDqrsWhAH5TYeTVXGSyDsuZjHvj+FRP+ gZaEIYSw2Yf0e91U9HXo3RYhEwSmxUQ4Fjhc9qAwGKVPQf6YuQ5yy6pzI8brcKmHHOGrB3tP /MODPt81M1zpograAC2WTDzkICfHKj8LpXp45PylD99J9q0Y+gb04CG5/wXs+1hJy/dz0tYy iua4nCuSRbxnSHKBS5vvjosWWjWQXsRKd+zzXp6kfRHHpzJkhRwF6ArXi4XnQ+REnoTfM5Fk VmVmSQ3yFKKePEzoIriT1b2sXO0g5QXOAvFqB65LZjXG9jGJoVG6ZJrUV1MVK8vamKoVbUEe 0NlLl/tX96HLowHHoKhxEsbFzGzKiFLh7hyboTpy2whdonkDxpnv/H8wE9M3VW/fPgnL2nPe xaBLqyHxy9hA9JrZvxg3IQ61x7rtBWBUQPmEaK0azW+l3ysiNpBhISkZrsW3ZUdknWu87nh6 eTB7mR7xBcVxnomxWwJI4B0wuMwCPdgbV6YDUKCuSgRMUEiVry10xd9KLypR9Vfyn1AhROrq AubRPVeJBf9zR5UW1trJNfwVt3XmbHX50HCcHdEdCKiT9O+FiEcahIaWh9lihvO0ci0TtVGZ MCEtaCE80Q3Ma9RdHYB3uVF930jwquplFLNF+IBCn5JRzsFNBFVDXDQBEADNkrQYSREUL4D3 Gws46JEoZ9HEQOKtkrwjrzlw/tCmqVzERRPvz2Xg8n7+HRCrgqnodIYoUh5WsU84N03KlLue MNsWLJBvBaubYN4JuJIdRr4dS4oyF1/fQAQPHh8Thpiz0SAZFx6iWKB7Qrz3OrGCjTPcW6ei OMheesVS5hxietSmlin+SilmIAPZHx7n242u6kdHOh+/SyLImKn/dh9RzatVpUKbv34eP1wA GldWsRxbf3WP9pFNObSzI/Bo3kA89Xx2rO2roC+Gq4LeHvo7ptzcLcrqaHUAcZ3CgFG88CnA 6z6lBZn0WyewEcPOPdcUB2Q7D/NiUY+HDiV99rAYPJztjeTrBSTnHeSBPb+qn5ZZGQwIdUW9 YegxWKvXXHTwB5eMzo/RB6vffwqcnHDoe0q7VgzRRZJwpi6aMIXLfeWZ5Wrwaw2zldFuO4Dt 91pFzBSOIpeMtfgb/Pfe/a1WJ/GgaIRIBE+NUqckM+3zJHGmVPqJP/h2Iwv6nw8U+7Yyl6gU BLHFTg2hYnLFJI4Xjg+AX1hHFVKmvl3VBHIsBv0oDcsQWXqY+NaFahT0lRPjYtrTa1v3tem/ JoFzZ4B0p27K+qQCF2R96hVvuEyjzBmdq2esyE6zIqftdo4MOJho8uctOiWbwNNq2U9pPWmu 4vXVFBYIGmpyNPYzRm0QPwARAQABwsF8BBgBCgAmAhsMFiEEm9B+DgxR+NWWd7dUG5NDfTtB YpsFAmA872oFCRRflLYACgkQG5NDfTtBYpvScw/9GrqBrVLuJoJ52qBBKUBDo4E+5fU1bjt0 Gv0nh/hNJuecuRY6aemU6HOPNc2t8QHMSvwbSF+Vp9ZkOvrM36yUOufctoqON+wXrliEY0J4 ksR89ZILRRAold9Mh0YDqEJc1HmuxYLJ7lnbLYH1oui8bLbMBM8S2Uo9RKqV2GROLi44enVt vdrDvo+CxKj2K+d4cleCNiz5qbTxPUW/cgkwG0lJc4I4sso7l4XMDKn95c7JtNsuzqKvhEVS oic5by3fbUnuI0cemeizF4QdtX2uQxrP7RwHFBd+YUia7zCcz0//rv6FZmAxWZGy5arNl6Vm lQqNo7/Poh8WWfRS+xegBxc6hBXahpyUKphAKYkah+m+I0QToCfnGKnPqyYIMDEHCS/RfqA5 t8F+O56+oyLBAeWX7XcmyM6TGeVfb+OZVMJnZzK0s2VYAuI0Rl87FBFYgULdgqKV7R7WHzwD uZwJCLykjad45hsWcOGk3OcaAGQS6NDlfhM6O9aYNwGL6tGt/6BkRikNOs7VDEa4/HlbaSJo 7FgndGw1kWmkeL6oQh7wBvYll2buKod4qYntmNKEicoHGU+x91Gcan8mCoqhJkbqrL7+nXG2 5Q/GS5M9RFWS+nYyJh+c3OcfKqVcZQNANItt7+ULzdNJuhvTRRdC3g9hmCEuNSr+CLMdnRBY fv0= In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 27/04/2025 05:55, Manikandan Karunakaran Pillai wrote: > work. >>>>>>> >>>>>>> Same applies to the other binding patch. >>>>>> Additionally, since this IP is likely in use on your sky1 SoC, why is a >>>>>> soc-specific compatible for your integration not needed? >>>>>> >>>>> The sky1 SoC support patches will be developed and submitted by the >> Sky1 >>>>> team separately. >>>> Why? Cixtech sent this patchset, they should send it with their user. >>> >>> Hi Conor, >>> >>> Please look at the communication history of this website. >>> >>> https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux- >> pci/patch/CH2PPF4D26F8E1C1CBD2A866C59AA55CD7AA2A12@CH2PPF4D26F >> 8E1C.namprd07.prod.outlook.com/__;!!EHscmS1ygiU1lA!Gh- >> UeyTbbr2R3ocWWa4QZHM_GYBRXws7a5zc3lZvSy_XYVCkcg8mmeEaAWS4wEvI >> SMV2tGCEylE$ >> >> And in that thread I asked for Soc specific compatible. More than once. >> Conor asks again. >> >> I don't understand your answers at all. > > The current support is for the IP from Cadence. There can be multiple SoC developed based on this IP and it is for > the SoC companies to build in support as and when the SoC support needs to be available. > > Since the CIX SoC is available, it can be send together with this patch. > However, I do not understand the need for clubbing these in a single patch. No one asks for this. The point is such IP blocks are usually customized per SoC this generic compatibles are not enough. That's the argument here, not whether you can have multiple vendors (we all know this, imagine we know Cadence, Synopsys etc) or whether you want to combine here Cix or not. Answer rather how much software interface is compatible or common between different implementations. ... AND even then you always need soc specific compatible. See writing bindings for the reason (or any other tutorial/guide/speech about writing bindings). Best regards, Krzysztof