From patchwork Thu Oct 5 15:56:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 13410347 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2DD5BE772A6 for ; Thu, 5 Oct 2023 16:11:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240672AbjJEQKr (ORCPT ); Thu, 5 Oct 2023 12:10:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238269AbjJEQJv (ORCPT ); Thu, 5 Oct 2023 12:09:51 -0400 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D004C87221 for ; Thu, 5 Oct 2023 08:57:38 -0700 (PDT) Received: by mail-wr1-x42b.google.com with SMTP id ffacd0b85a97d-3248aa5cf4eso1164143f8f.1 for ; Thu, 05 Oct 2023 08:57:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696521457; x=1697126257; 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=yQQEqZ6dgoMIiE150E7fSsiHYzKXaQCMbIzJ/S4ZYh0=; b=gCDzUgoGnRiM+ARNjj+9qPWYmacwg5ohZ1fKUdPb3L23S2fECFE2E8xQfrBHr7axwo gIz1yemXGLgorCSLbenlSYrPIZwnxJuFQzVOpu/U7LX5CHm8TOgxRHhSp0tkrJEHNskU 9d8zdPVd8LU21Bmg+pcACSDqPoi9LjitbwkOMHtBYCmjRURDpFgZdTWVPCvIfRM8UVXu CK6sUtXI4xY+HYiC90CyPOAG+AFZ0qLVVvvndSSI4rxITtc0dfnJvKj1Y/5NT2YLoKSp ykp99j9jwtHqynQ2dpRy9YvWIVeI2EIdcbG1JGpRoK4049iH+foaAojurpSEviQId2YW ovDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696521457; x=1697126257; 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=yQQEqZ6dgoMIiE150E7fSsiHYzKXaQCMbIzJ/S4ZYh0=; b=l7/MOiPXaJOx3wfgzjF2fHPDTM4FW7z1HeYhQNBTdQ/mEY/FO4ieNwoOQSWdMCWpmT YzT2CwmmFGIkU0dg02WDTQT8kg5lt/f6+r1NI+omR6iGI96uP9y4j0g/Dz8pna18Lk92 7aB39hAvc8lv/u/vvwh+wv1nPTyMXWYcpRAgleusxb6tf0l3eRXCldSs3l9oQsleEh/f MWKvVtNEQCwaHLUuRf2rtcYmfazCrRo5VgYLQbuiy3SRg1Kl9FF9nUdg2gd1JgS2Frpc U7vNQE/wj0+FzhTs38SLGwsZKbq6V8LlO6q0rzjwCn9XKFQ+uXEtH5MxVcAgyGfclU5M TeSg== X-Gm-Message-State: AOJu0Yx+r8i7Lx5R4B2PpWH5k58jaUn0GgG+zpa2+ufdqu0pLyPK/KKj x+Oi33BgD8FK1vS2nfYDRmQ/tA== X-Google-Smtp-Source: AGHT+IF/lcHc9XUltM5UGXmSAYqRcd/8VSrf26P8R3iLwmpTL9VeuYYzrZE6bmpvvFoO8WJJ0m9ktQ== X-Received: by 2002:a5d:6909:0:b0:314:dc0:2fca with SMTP id t9-20020a5d6909000000b003140dc02fcamr5280803wru.29.1696521457202; Thu, 05 Oct 2023 08:57:37 -0700 (PDT) Received: from gpeter-l.lan (host-92-12-225-146.as13285.net. [92.12.225.146]) by smtp.gmail.com with ESMTPSA id t9-20020a5d4609000000b0031f8a59dbeasm2084336wrq.62.2023.10.05.08.57.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Oct 2023 08:57:36 -0700 (PDT) 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, cw00.choi@samsung.com Cc: peter.griffin@linaro.org, tudor.ambarus@linaro.org, andre.draszik@linaro.org, semen.protsenko@linaro.org, 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 Subject: [PATCH 12/21] clk: samsung: clk-pll: Add support for pll_{0516,0517,518} Date: Thu, 5 Oct 2023 16:56:09 +0100 Message-ID: <20231005155618.700312-13-peter.griffin@linaro.org> X-Mailer: git-send-email 2.42.0.582.g8ccd20d70d-goog In-Reply-To: <20231005155618.700312-1-peter.griffin@linaro.org> References: <20231005155618.700312-1-peter.griffin@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Thesee plls are found in the Tensor gs101 SoC found in the Pixel 6. pll0516x: Integrer PLL with high frequency pll0517x: Integrer PLL with middle frequency pll0518x: Integrer 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), Signed-off-by: Peter Griffin --- drivers/clk/samsung/clk-pll.c | 9 ++++++++- drivers/clk/samsung/clk-pll.h | 3 +++ 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 74934c6182ce..4ef9fea2a425 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -442,7 +442,11 @@ static unsigned long samsung_pll0822x_recalc_rate(struct clk_hw *hw, pdiv = (pll_con3 >> PLL0822X_PDIV_SHIFT) & PLL0822X_PDIV_MASK; sdiv = (pll_con3 >> PLL0822X_SDIV_SHIFT) & PLL0822X_SDIV_MASK; - fvco *= mdiv; + if (pll->type == pll_0516x) + fvco = fvco * 2 * mdiv; + else + fvco *= mdiv; + do_div(fvco, (pdiv << sdiv)); return (unsigned long)fvco; @@ -1316,6 +1320,9 @@ 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) \