From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (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 A704A1ACEDA for ; Mon, 5 May 2025 06:45:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746427508; cv=none; b=utxqwDNBztewfdfbvRWsDzG/aGDUTK8YD6iZtX6AVKxh1Ccjwb9Bgp1Vt8FRVWeqFXrCKg0NwIH3HszOtyxvp1fDJ6A8etAKrEsQSttu0bYOWXEjjC4wMi+kXypC5xOThVurwKer+ADEpMc50seugdHOtUt0JPfj1zmH9HsB/6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746427508; c=relaxed/simple; bh=Ksz2MkhzWiD6KlQcTwLlFEF5v2ADwK9Yf6rKIUoP/6I=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=hKctmczd2FzdAifIg9P5+saAgeVV9/SmvL422qR51PGgtTHFd+LbEAhV35/nNSOBmR2/6HZYpfzN4aY4z+TYr7s4AzV1herXuqccyIsB6mszkFGV5sFVd5gAUrxBw39Jv92CKhfURcBEr3dB2+69PHU8HU8cMcOSQYmtZuas3wk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=r0CjERFh; arc=none smtp.client-ip=209.85.128.44 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="r0CjERFh" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-43cfe99f2a7so4920945e9.2 for ; Sun, 04 May 2025 23:45:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1746427505; x=1747032305; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:content-language :from:references:cc:to:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=w8noPVR70Xgd7wEK+1WJmgui78pNLLCVT+Tyy9XyHfs=; b=r0CjERFh7wR4yk9MwPfumA/Slp0Lg148wkw9DGW/kzMgF0DGNOaRVco+7iLvNV5sy1 rGl0yq9BoIVoz+F94T/wxPB7F75asQnu4YXraTmBQ79zE6n+zdQRENNsajJnt3H/nncD /GgiQ5NkZ+JT52JTe/AuZgIoueiXiuDAJ3u02vb1J0QCL9ghUP+fOB+ROXhFthh+Ec/7 9if7CwvxnaRIzFjijG69SzGOwYGaQddydDIMP6ejPWjixI+ijrCfWSfXEiLom4QNe13V 9F4MF7r0ozRrilrxNqgKYhc3mndhXnb+B1zFepCBgvC4FwY990ZsX5457io4Xo7N7PgJ Gcyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1746427505; x=1747032305; h=content-transfer-encoding:in-reply-to:autocrypt:content-language :from:references:cc:to:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=w8noPVR70Xgd7wEK+1WJmgui78pNLLCVT+Tyy9XyHfs=; b=pyM+2nzoxtLHPiJmu/ne4S5Lcu1MiR6TRzPOeYEoQ48Aq7LpgJgKI0XCzDuCIY+Oox zCRyg7juA7BzcYUQFnw4xKuMMcY2nHhCfr9ebO1c6aaOgU0ZJqfsdrNGMf0UaiyJSR+B XJr7C8ArC1wzyIIMbmUFQGBKHPsU6H8p6uMxOYzC7MVsl96FKGe/mMkQ9cA+c1F/01UX t2TMsyMPfQpB8ldRz2b56MCn+pshDMP2MvPIeLjtlUF2oQTHfLdr9eB5y+/FMnZsFELr s/O5L51kVhQgo83lPQGXKfG/sN0QpAk4yasBMRVb53nYElHdZcHxUOuTtUlNm+osSTdg xXQQ== X-Forwarded-Encrypted: i=1; AJvYcCXdWCIxTpwW3CcknAFUx6d1DFKiD1C8ZbQwaTmGrDH4XyW2dfsb2vXrsr8jCg91ZVZTDwcOeb5WRTZP@vger.kernel.org X-Gm-Message-State: AOJu0Ywz8KBWt7AMiUmaRUsL13WKxPyp4nJfzAkjB3KxFRLItTtfQ65H tBcHZqFOTM2Uf4hVtjrcz/6xUJdCmgtIcF46o7ggHRQkW7t7Q2OvR6lzgaMrV28= X-Gm-Gg: ASbGnctQXQqmgwg3atqXgjc3p3WPdGaugrAXRkwolK3Fn31FbpHaKfKu1s+Gq3tFihl 46tJLCqUROAxnvbbt9Zr2DldRaBS4ULCjdtFKIEc11Zw/UKauuuKiGMP7RG9milq25XkOPbRTOn OsZhj2xNC/bKoMKdTCchn2NdGmvc4Lstwd5mJ8Ot40KizYwgrkM3Ev2b/cwTIkV2HEoHPVFSU4+ o57w4j+/mrv96WqxIubCIoxE9VWRnYlM3SIij2yB07ctHUVBUYzp2eq8H59emi87WFG44tbsTlw Ew28f7+wm0u8Xy7leu3P2udOBsU4ku9V7OubAaxh6xyA+UDcuIkL4XaMbzg= X-Google-Smtp-Source: AGHT+IFqK9ylb6N7k08mb0TyDcKoH9DPTwdh1zCrGridcwy/TzfJH8PhEKoWWMZ2Yj9Gv9rTYTvRkQ== X-Received: by 2002:a05:6000:2481:b0:3a0:782b:acf8 with SMTP id ffacd0b85a97d-3a099af619dmr3414511f8f.15.1746427504927; Sun, 04 May 2025 23:45:04 -0700 (PDT) Received: from [192.168.1.29] ([178.197.207.88]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099ae3d3bsm9521985f8f.33.2025.05.04.23.45.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 04 May 2025 23:45:04 -0700 (PDT) Message-ID: <5c307e88-a3fc-430b-8ccc-af59e2097da3@linaro.org> Date: Mon, 5 May 2025 08:45:01 +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 v5 19/24] drm/msm/dsi: Add support for SM8750 To: Dmitry Baryshkov Cc: Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Manikandan , Jonathan Marek , Kuogee Hsieh , Neil Armstrong , Dmitry Baryshkov , Rob Clark , Bjorn Andersson , Michael Turquette , Stephen Boyd , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Clark , linux-clk@vger.kernel.org, Srinivas Kandagatla References: <20250430-b4-sm8750-display-v5-0-8cab30c3e4df@linaro.org> <20250430-b4-sm8750-display-v5-19-8cab30c3e4df@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzysztof.kozlowski@linaro.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 TNeBxJu5Ex0Izf1NV9CzC3nNaFUYOY8KfN01X5SExAoVTr09ewARAQABzTRLcnp5c3p0b2Yg S296bG93c2tpIDxrcnp5c3p0b2Yua296bG93c2tpQGxpbmFyby5vcmc+wsGUBBMBCgA+AhsD BQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAFiEEm9B+DgxR+NWWd7dUG5NDfTtBYpsFAmgXUEoF CRaWdJoACgkQG5NDfTtBYpudig/+Inb3Kjx1B7w2IpPKmpCT20QQQstx14Wi+rh2FcnV6+/9 tyHtYwdirraBGGerrNY1c14MX0Tsmzqu9NyZ43heQB2uJuQb35rmI4dn1G+ZH0BD7cwR+M9m lSV9YlF7z3Ycz2zHjxL1QXBVvwJRyE0sCIoe+0O9AW9Xj8L/dmvmRfDdtRhYVGyU7fze+lsH 1pXaq9fdef8QsAETCg5q0zxD+VS+OoZFx4ZtFqvzmhCs0eFvM7gNqiyczeVGUciVlO3+1ZUn eqQnxTXnqfJHptZTtK05uXGBwxjTHJrlSKnDslhZNkzv4JfTQhmERyx8BPHDkzpuPjfZ5Jp3 INcYsxgttyeDS4prv+XWlT7DUjIzcKih0tFDoW5/k6OZeFPba5PATHO78rcWFcduN8xB23B4 WFQAt5jpsP7/ngKQR9drMXfQGcEmqBq+aoVHobwOfEJTErdku05zjFmm1VnD55CzFJvG7Ll9 OsRfZD/1MKbl0k39NiRuf8IYFOxVCKrMSgnqED1eacLgj3AWnmfPlyB3Xka0FimVu5Q7r1H/ 9CCfHiOjjPsTAjE+Woh+/8Q0IyHzr+2sCe4g9w2tlsMQJhixykXC1KvzqMdUYKuE00CT+wdK nXj0hlNnThRfcA9VPYzKlx3W6GLlyB6umd6WBGGKyiOmOcPqUK3GIvnLzfTXR5DOwU0EVUNc NAEQAM2StBhJERQvgPcbCzjokShn0cRA4q2SvCOvOXD+0KapXMRFE+/PZeDyfv4dEKuCqeh0 hihSHlaxTzg3TcqUu54w2xYskG8Fq5tg3gm4kh1Gvh1LijIXX99ABA8eHxOGmLPRIBkXHqJY oHtCvPc6sYKNM9xbp6I4yF56xVLmHGJ61KaWKf5KKWYgA9kfHufbja7qR0c6H79LIsiYqf92 H1HNq1WlQpu/fh4/XAAaV1axHFt/dY/2kU05tLMj8GjeQDz1fHas7augL4argt4e+jum3Nwt yupodQBxncKAUbzwKcDrPqUFmfRbJ7ARw8491xQHZDsP82JRj4cOJX32sBg8nO2N5OsFJOcd 5IE9v6qfllkZDAh1Rb1h6DFYq9dcdPAHl4zOj9EHq99/CpyccOh7SrtWDNFFknCmLpowhct9 5ZnlavBrDbOV0W47gO33WkXMFI4il4y1+Bv89979rVYn8aBohEgET41SpyQz7fMkcaZU+ok/ +HYjC/qfDxT7tjKXqBQEscVODaFicsUkjheOD4BfWEcVUqa+XdUEciwG/SgNyxBZepj41oVq FPSVE+Ni2tNrW/e16b8mgXNngHSnbsr6pAIXZH3qFW+4TKPMGZ2rZ6zITrMip+12jgw4mGjy 5y06JZvA02rZT2k9aa7i9dUUFggaanI09jNGbRA/ABEBAAHCwXwEGAEKACYCGwwWIQSb0H4O DFH41ZZ3t1Qbk0N9O0FimwUCaBdQXwUJFpZbKgAKCRAbk0N9O0Fim07TD/92Vcmzn/jaEBcq yT48ODfDIQVvg2nIDW+qbHtJ8DOT0d/qVbBTU7oBuo0xuHo+MTBp0pSTWbThLsSN1AuyP8wF KChC0JPcwOZZRS0dl3lFgg+c+rdZUHjsa247r+7fvm2zGG1/u+33lBJgnAIH5lSCjhP4VXiG q5ngCxGRuBq+0jNCKyAOC/vq2cS/dgdXwmf2aL8G7QVREX7mSl0x+CjWyrpFc1D/9NV/zIWB G1NR1fFb+oeOVhRGubYfiS62htUQjGLK7qbTmrd715kH9Noww1U5HH7WQzePt/SvC0RhQXNj XKBB+lwwM+XulFigmMF1KybRm7MNoLBrGDa3yGpAkHMkJ7NM4iSMdSxYAr60RtThnhKc2kLI zd8GqyBh0nGPIL+1ZVMBDXw1Eu0/Du0rWt1zAKXQYVAfBLCTmkOnPU0fjR7qVT41xdJ6KqQM NGQeV+0o9X91X6VBeK6Na3zt5y4eWkve65DRlk1aoeBmhAteioLZlXkqu0pZv+PKIVf+zFKu h0At/TN/618e/QVlZPbMeNSp3S3ieMP9Q6y4gw5CfgiDRJ2K9g99m6Rvlx1qwom6QbU06ltb vJE2K9oKd9nPp1NrBfBdEhX8oOwdCLJXEq83vdtOEqE42RxfYta4P3by0BHpcwzYbmi/Et7T 2+47PN9NZAOyb771QoVr8A== In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 03/05/2025 00:52, Dmitry Baryshkov wrote: > On Wed, Apr 30, 2025 at 03:00:49PM +0200, Krzysztof Kozlowski wrote: >> Add support for DSI on Qualcomm SM8750 SoC with notable difference: >> >> DSI PHY PLLs, the parents of pixel and byte clocks, cannot be used as >> parents before DSI PHY is configured, the PLLs are prepared and their >> initial rate is set. Therefore assigned-clock-parents are not working >> here and driver is responsible for reparenting clocks with proper >> procedure: see dsi_clk_init_6g_v2_9(). > > Is it still the case? I thought you've said that with the proper flags Yes, as we discussed many times - this is still needed even with the proper flags. > there would be no need to perform this in the driver. assigned-clock-xxx are not respecting that flag and anyway, even if that was solved, they are executed too early - before PHY is initialized. You cannot prepare PHY PLL before PHY is initialized and enabled. Best regards, Krzysztof