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: 13487598 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 569DBE8 for ; Mon, 11 Dec 2023 08:24:25 -0800 (PST) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-33349b3f99aso4307475f8f.0 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=MiR1cacrnXaaC+VbYd/0D4i3zshp/DuvPxR2tb4q5jABWo9vIiDL2TpbC6FpcwlJS0 R6s18614NP8Nuz4d2bK06twqI8Uzsn/7Y1QC7XMALwAABOwgI0JoB/yu+4gxNXX5foJg zF2xRKjsEM7Ief14u3ZU5uaLu8SpTO84fNtmzXc+oHt3Bk9l8WW5qvIHPc5xqgecrMhc ylMhxCcleLgeB5idgsd0nEqJLW8tN1GxAan3cUrEmfl5t5mCRzm8kH/gTynHB/aGpPwn guKuBa9ArCawwHai40rDmtcWiY8yqlsAnOWVCCI22Nm4ZLrjWchVw1mG1cKzB/kVOJRW GUlA== X-Gm-Message-State: AOJu0YxROLeItNHtkmiBRwd1e3RdNbS/N3Lgvga+hdThostOWEHB8S9g +y0ds48vopP4LkD1ZkDqIJJL7w== 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-clk@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) \