From patchwork Mon Dec 11 16:23:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 753423 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="p5M1w0w5" Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54B9CDB for ; Mon, 11 Dec 2023 08:24:25 -0800 (PST) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-33610bf5facso2407282f8f.1 for ; Mon, 11 Dec 2023 08:24:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1702311864; x=1702916664; 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=p5M1w0w5aoGqUTf8Cl1dh1jDvoovO5MLbzMPF4RH22DKiABwKlHxMORql0ejvkWOry oiadA3eLeYD8NZMV/NLjvzLhnotTEHuVD79fs6ZCMXlWTp1YDneL2kroTSzYeKvnIiod rU1kkmTBsz0KIeX3phQg3Zm/psdOm52zeFW98NyaN89jweTO54Qcc2dSNmm6CCKXqK+y 8XQVX1SBpx70DjWzvHVuPGN4TvGxdb7HqILE94QifhVsHtSgcLCdGuibj4k+iUR4hsjL B6rd3KYjVgJUgj+1fJ+9/a8bqTL7b2lOx3Rze8213C2XvxnHHd1G1hAr4f65VS44Obr/ Zkxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702311864; x=1702916664; 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=FU4MVug3UuwcudEno4QTMVTHvZiG77kuJnGLXi7TxSDKauw+2MdnlZjhpgvpUi2CcM +T8r3qW49R65WxIV5khkCfk/wRHWc7F5UXu7nmE6mhS3iB3HUtGCoRLoKJB8JepFw0C3 jpOIAbj75gJJ5dA4m1NmAIGxlwzof0H6VowqrnY9E5qJJU1xEBm2tG8dTeOMTdxpc1ZI 7mqu9IoQDG2SULDBEL30ACbyGCIc93bYTdgYV7Z/4x78wDOmLPzjV6eJWSJxYpqN5KOm rgfdNmycxHkUT9PfFlb8kXu5yQYaHEsgQNBpZArHtrkijIrlYwdDfO9/ZBqMaIQ6Ttkb T7MQ== X-Gm-Message-State: AOJu0YyFNYbGLy6QyhPocnsjoDsP4QjY/Msi6/GhtQQakwoakKURg4f/ h2p61vKN07LdmTMDSUgwnAcQQw== X-Google-Smtp-Source: AGHT+IHI8/u+g6/qyk1RENiAKJhOgl7pE0mrv/dVTAf7uAdlcOf9jEVdC0jE09pvx1o8Y/jX/B8VvA== X-Received: by 2002:a5d:6a0a:0:b0:333:39dc:d9a6 with SMTP id m10-20020a5d6a0a000000b0033339dcd9a6mr2148999wru.85.1702311863797; Mon, 11 Dec 2023 08:24:23 -0800 (PST) Received: from gpeter-l.lan (host-92-29-28-58.as13285.net. [92.29.28.58]) by smtp.gmail.com with ESMTPSA id o4-20020a5d58c4000000b0033333bee379sm8923103wrf.107.2023.12.11.08.24.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Dec 2023 08:24:23 -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 v7 07/16] clk: samsung: clk-pll: Add support for pll_{0516,0517,518} Date: Mon, 11 Dec 2023 16:23:22 +0000 Message-ID: <20231211162331.435900-8-peter.griffin@linaro.org> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog In-Reply-To: <20231211162331.435900-1-peter.griffin@linaro.org> References: <20231211162331.435900-1-peter.griffin@linaro.org> Precedence: bulk X-Mailing-List: linux-serial@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) \