From patchwork Sat Dec 9 23:30:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 752053 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="EpsbpIw6" Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC4C710C4 for ; Sat, 9 Dec 2023 15:31:31 -0800 (PST) Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-40c32df9174so23534615e9.3 for ; Sat, 09 Dec 2023 15:31:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1702164690; x=1702769490; 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=2xJMMkIi7gHwqFFRiNxJNl8E4vObJQqSH/0uTp/Sg+Q=; b=EpsbpIw6n8AKvkOYSmNjllZfcMjQa0vegbJyPXEakNDVUbVRxJC3x+Ap5L7qkfbjuz rFllnDcY7R/rZZCJWzicKn1ihObFT2FrqDtSqqtZ/nAJawlhEPXHsychyLzvg6QNTAps gSPB7PPfNIbW41dtR6i0SRsUqz/XUtJ16FLv3biuL5erxoj24hUK/RxjOc0JlXSHC/ds MNI2mQrG38z4sSsk7l2zbT4q1eLOBE7UH3uPWYy4vb9AIyeYYjBNpXapTWBNmU5E/Fi9 MuUUEVI1K4aEU9Aa3H8V4Yu73fV+Jhx894S47tkvlXpq2kRFNZxpuIWXWUdAOGu4f12g UwnA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702164690; x=1702769490; 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=2xJMMkIi7gHwqFFRiNxJNl8E4vObJQqSH/0uTp/Sg+Q=; b=MrXd7FjeZmqujj8kp00fvB1dFRaKdfs7nPQ806LVHFuIep9+osGL9cRx7Ba3wl0g3i V3E/JdulbnOaJ2zcKBug5tu/ffslQiT+gcG3zN68dxz9skDFjlIJGwG8JiSMhVZI2jOU o4soVA+OMuLK9XVNc9TJN30Khko+exKn9diw9bPtTTl8dIUmPw6bsMpMYXQaTOYLOA2w J4o45POPWLczBHWi73zs9j8wmXGP8oZIgM4sbSgstzBK0PKw1Wz30JVFJB6k9lCXWIEc Z0AZY7aHurraP735/Vpq/FASZhXigNgbmnXwVIe3gnD3YEkiXvbc+RqQgjPbYpgxIwMg 8GFA== X-Gm-Message-State: AOJu0YzNEwM36k0/L4SZ27VkkPYudt2tHVOZHAfOm4F3vbhH9VYHkbu8 DzKAPFfJ02Kb9FTT92JZqx/OSQ== X-Google-Smtp-Source: AGHT+IFzcDIQzUfZRPbTkMhtVL/A5vnbyjnWALM6VMaCSNOIf0ll9TyONx6g9zFQADGgXl8vbrrY9w== X-Received: by 2002:a05:600c:3212:b0:40b:5e21:c598 with SMTP id r18-20020a05600c321200b0040b5e21c598mr749759wmp.102.1702164690518; Sat, 09 Dec 2023 15:31:30 -0800 (PST) Received: from gpeter-l.lan (host-92-23-61-173.as13285.net. [92.23.61.173]) by smtp.gmail.com with ESMTPSA id n9-20020a05600c4f8900b0040c41846923sm1875277wmq.26.2023.12.09.15.31.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 09 Dec 2023 15:31:30 -0800 (PST) From: Peter Griffin To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, conor+dt@kernel.org, sboyd@kernel.org, tomasz.figa@gmail.com, s.nawrocki@samsung.com, linus.walleij@linaro.org, wim@linux-watchdog.org, linux@roeck-us.net, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, olof@lixom.net, gregkh@linuxfoundation.org, jirislaby@kernel.org, cw00.choi@samsung.com, alim.akhtar@samsung.com Cc: peter.griffin@linaro.org, tudor.ambarus@linaro.org, andre.draszik@linaro.org, semen.protsenko@linaro.org, saravanak@google.com, willmcvicker@google.com, soc@kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-watchdog@vger.kernel.org, kernel-team@android.com, linux-serial@vger.kernel.org Subject: [PATCH v6 11/20] clk: samsung: clk-pll: Add support for pll_{0516,0517,518} Date: Sat, 9 Dec 2023 23:30:57 +0000 Message-ID: <20231209233106.147416-12-peter.griffin@linaro.org> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog In-Reply-To: <20231209233106.147416-1-peter.griffin@linaro.org> References: <20231209233106.147416-1-peter.griffin@linaro.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 These plls are found in the Tensor gs101 SoC found in the Pixel 6. pll0516x: Integer PLL with high frequency pll0517x: Integer PLL with middle frequency pll0518x: Integer PLL with low frequency PLL0516x FOUT = (MDIV * 2 * FIN)/PDIV * 2^SDIV) PLL0517x and PLL0518x FOUT = (MDIV * FIN)/PDIV*2^SDIV) The PLLs are similar enough to pll_0822x that the same code can handle both. The main difference is the change in the fout formula for the high frequency 0516 pll. Locktime for 516,517 & 518 is 150 the same as the pll_0822x lock factor. MDIV, SDIV PDIV masks and bit shifts are also the same as 0822x. When defining the PLL the "con" parameter should be set to CON3 register, like this PLL(pll_0517x, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk", PLL_LOCKTIME_PLL_SHARED0, PLL_CON3_PLL_SHARED0, NULL), Acked-by: Chanwoo Choi Tested-by: Will McVicker Reviewed-by: Sam Protsenko Signed-off-by: Peter Griffin --- drivers/clk/samsung/clk-pll.c | 6 ++++++ drivers/clk/samsung/clk-pll.h | 3 +++ 2 files changed, 9 insertions(+) diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 74934c6182ce..4bbdf5e91650 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -443,6 +443,9 @@ static unsigned long samsung_pll0822x_recalc_rate(struct clk_hw *hw, sdiv = (pll_con3 >> PLL0822X_SDIV_SHIFT) & PLL0822X_SDIV_MASK; fvco *= mdiv; + if (pll->type == pll_0516x) + fvco *= 2; + do_div(fvco, (pdiv << sdiv)); return (unsigned long)fvco; @@ -1316,6 +1319,9 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, case pll_1417x: case pll_0818x: case pll_0822x: + case pll_0516x: + case pll_0517x: + case pll_0518x: pll->enable_offs = PLL0822X_ENABLE_SHIFT; pll->lock_offs = PLL0822X_LOCK_STAT_SHIFT; if (!pll->rate_table) diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h index 0725d485c6ee..ffd3d52c0dec 100644 --- a/drivers/clk/samsung/clk-pll.h +++ b/drivers/clk/samsung/clk-pll.h @@ -38,6 +38,9 @@ enum samsung_pll_type { pll_0822x, pll_0831x, pll_142xx, + pll_0516x, + pll_0517x, + pll_0518x, }; #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \