From nobody Fri Nov 29 03:44:29 2024 Received: from mail-lj1-f181.google.com (mail-lj1-f181.google.com [209.85.208.181]) (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 3D3F01AD9EB; Thu, 26 Sep 2024 10:38:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727347128; cv=none; b=Pana9wFTSM4XkZDhl05Dbc0+0tTlxl4Np/HOwvS75qxzZ62y0nCTKXdUBI0miN6dWvVRn5+mRQ85VVwQQRK6ba05/qz3dhSXTneWohDmwofmSMX9uUsx4LU8b/S6G6YVG2NUeTzaoozo0v9ZDIa1+vEJ05t9ttNtRyuLNPmww4M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727347128; c=relaxed/simple; bh=cU9P4qzHC4jP9o3v4wIQ+UaeV1Ek/oCy3Sa5T8uuL30=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=eq0srcx2aGMVNCMjGtSAJEh+vAZHYCGhLheehKSPEQ6EuRh+2X50wTe4OHZJWgU/6zauBMBvwJvaZ+cBfIpk8NNYSdIIoTQNd6v007W6G4l44eLDWxR4YVfoqLysZqJuOGo3VxdJPipKRtIFSbyrUt+WSe6gjb9V8xwcKFc2TJM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=QbONMyJ6; arc=none smtp.client-ip=209.85.208.181 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="QbONMyJ6" Received: by mail-lj1-f181.google.com with SMTP id 38308e7fff4ca-2f75e5f3debso7382201fa.1; Thu, 26 Sep 2024 03:38:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1727347125; x=1727951925; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=qXV7innKMzJjCsw3L4AU06wd569JCGXLkPWGw2m6iWE=; b=QbONMyJ64Jtxa3m9EIoZ8BD9npxi3nZPTf0cZc66vZdGd/JPkj9Jaf+rL3rX5katn3 sqmGDL+6L46iG9YIMeCo3nnXs2JdEcOFdixhB4ax3RqIaRA5l0GRW22w11gV1ibyet39 ZcMF5MFZdEHRUObgmzjXdEteD/HIhN6Y2rOapLW5CSt8+3H2SI6w+JjCliTUJIv4/L3W b9XS3E/lxlJ42qhJl7bDfR5J+5npqvS6KdX1/rH4nmverWYDIydOSOUkcqCuZ1xoE6dy A3C2Fo0UVQtDJ5zfaTQHE6sdI6XWwQrO7l3xmqYc42UlijFGMzDHNWNcp2spcCgRj+/a UjJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727347125; x=1727951925; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=qXV7innKMzJjCsw3L4AU06wd569JCGXLkPWGw2m6iWE=; b=FNpJi+TfxyuZV7ZS+W/Uvbk6hKVSJLKDY+sdKR0dIIXl5DyOm1pgRVPOasKW/kA9W4 kICttpEN/8GC4+9l5kyYT9OH9196KRvKQ+RTnN4fXfOQWDGPNTDjJHWo4v63FhE54vyW zFGGkCpkPkthfEBfk5cIL2ovUKMGOzBkN9fuzkJk7eDJIukqX7BN4bSf++oYL10TupqY 1OVlAhpPHs3swhaAGNk+VM1+eiIawI6WhKht1akMJ9A86DUq2MLHgp0MlliyBLq4NX05 TrxSqBMDD48sVgNvJoqboD4uj140uvACnAS5r3Kjyrpb6/GfMVLlPVI9i29ZW2B0l+Rt yHaA== X-Forwarded-Encrypted: i=1; AJvYcCUciQD4uVNxQPVV55X9rVuXcEXPmsWJHMcZRCr1IoivLSrY8q5U/OVcmtmb4P88CVJDd6vMWOmPb8s=@vger.kernel.org, AJvYcCXkfze3EiT8Z3AHSqnLGJJOURPxrV6NXMzJRJWWik6QuOqzLZoj9MhLKTX8hhAgozphXfjJljJxAGr2fK/b@vger.kernel.org X-Gm-Message-State: AOJu0YwsYfV0iCHN+sQujxQtpyn6jad86gxvvQdaWggJD4hESVHvrJme eVAcV8eAvan+Wzl9SpUPLXD3GE3r8JlWGiCM1yUuJ7rqexrxiMdp X-Google-Smtp-Source: AGHT+IHqq7HAndaVicSzhcbSS2gvRRgmsZL6X7XvOrIM5G5fxL5+ql5X55gxtU8HHpG0Y7PjceBIbQ== X-Received: by 2002:a05:651c:1991:b0:2f7:56c2:7288 with SMTP id 38308e7fff4ca-2f913f5201amr40260371fa.7.1727347125023; Thu, 26 Sep 2024 03:38:45 -0700 (PDT) Received: from [127.0.1.1] (mm-20-1-84-93.mgts.dynamic.pppoe.byfly.by. [93.84.1.20]) by smtp.googlemail.com with ESMTPSA id 38308e7fff4ca-2f8d289ee94sm7863791fa.120.2024.09.26.03.38.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Sep 2024 03:38:43 -0700 (PDT) From: Dzmitry Sankouski Date: Thu, 26 Sep 2024 13:38:15 +0300 Subject: [PATCH v5 1/2] clk: qcom: clk-rcg2: document calc_rate function Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240617-starqltechn_integration_upstream-v5-1-761795ea5084@gmail.com> References: <20240617-starqltechn_integration_upstream-v5-0-761795ea5084@gmail.com> In-Reply-To: <20240617-starqltechn_integration_upstream-v5-0-761795ea5084@gmail.com> To: Bjorn Andersson , Michael Turquette , Stephen Boyd Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Dzmitry Sankouski X-Mailer: b4 0.12.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727347119; l=1073; i=dsankouski@gmail.com; s=20240619; h=from:subject:message-id; bh=cU9P4qzHC4jP9o3v4wIQ+UaeV1Ek/oCy3Sa5T8uuL30=; b=IpSVYdD5v7r9p90hDpaR1esxTaVJtF9OXMXeHPo4ernHjBlk4MaA4Yp8cImzPm1m09oyXSoZO aZ6WU+7huv7CjoPdev2qssvBc70hw632P5/wzyY8xCt7rYsFGZCydSq X-Developer-Key: i=dsankouski@gmail.com; a=ed25519; pk=YJcXFcN1EWrzBYuiE2yi5Mn6WLn6L1H71J+f7X8fMag= Update calc_rate docs to reflect, that pre_div is not pure divisor, but a register value, and requires conversion. Signed-off-by: Dzmitry Sankouski --- drivers/clk/qcom/clk-rcg2.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index bf26c5448f00..0fc23a87b432 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -153,7 +153,14 @@ static int clk_rcg2_set_parent(struct clk_hw *hw, u8 i= ndex) * * parent_rate m * rate =3D ----------- x --- - * hid_div n + * pre_div n + * + * @param rate - Parent rate. + * @param m - Multiplier. + * @param n - Divisor. + * @param mode - Use zero to ignore m/n calculation. + * @param hid_div - Pre divisor register value. Pre divisor value + * relates to hid_div as pre_div =3D (hid_div + 1) / 2 */ static unsigned long calc_rate(unsigned long rate, u32 m, u32 n, u32 mode, u32 hid_div) --=20 2.39.2