From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AE162CEBF93 for ; Tue, 18 Nov 2025 09:14:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:Reply-To:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:References:Cc:To:Subject: From:MIME-Version:Date:Message-ID:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8DvlbtnhSs26ic7b5IifsAB83x6or95wur3T0EewTi4=; b=UPy2FYxktjkIooABoqvpRiVQQt 9zmCIJVEf6+f9xsRhI99L6FcehEISXplmCTfUURNIJuQgKD22ZTuJqOzLOtKT3Rmea3Y1VAXF5h1f 4d7SKg/A5C/UDXpfyekFYeVVzTxvauePuV0ZGAuqryqEz5EhSZF2VrFe7tL1izArheqHbXrqtmQ1J 2fgNcPNVkFlkgikrEpre6tfH+19+rehephY6NRLXH4J4hIhuUvzvUmui03jsM2Q6BicoipVGqTFlh RV+IIAWA8CKtLgROiMV0n7L1/1NkEpsnCpq6G+A6xaBg+nMvWeEeBJK3c7wMiS0OTdDcVERwxn65u FliPUrWw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vLHmy-000000008zY-1ws1; Tue, 18 Nov 2025 09:14:16 +0000 Received: from mail-wr1-x435.google.com ([2a00:1450:4864:20::435]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vLHmv-000000008yL-2YRs for linux-phy@lists.infradead.org; Tue, 18 Nov 2025 09:14:14 +0000 Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-42b3b29153fso2867863f8f.3 for ; Tue, 18 Nov 2025 01:14:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1763457252; x=1764062052; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:subject:reply-to:from:user-agent :mime-version:date:message-id:from:to:cc:subject:date:message-id :reply-to; bh=PebSiGPl1ns0dYlefJC1vEn1itPg8Ola/syHJIvUBo4=; b=iPwHEFfv+G640eETyVp4UbfC7UAiw7DZ9qe5fokn4jgcVLO8cIFB5FoaOIg9Lw8Etk ktttKf8cRIfk3uC59gGGpIsHZPlxYI7awMX/3w7QI5B5c7+zQo4YzONazZzFfQ3OLBYW qIXhl3fDy5leRKD6uahWvco9b+OHJnaZ4ZRhjt0qXbATvwHqgosLvGVETUYQSNzgdMiB JUbhMuH3/553Kt70rQcOeVTaMggfKsVSBG6Q5ofRqx2G3t2QlnOyyH/Ge4OAZCspzdmQ 5gy0NSwCf/by+Tpfobz+R0npCwJGbA5+W6WnWkAZML7b3zYjKQqwpFR9yI8CPQ2tLw8/ nqew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763457252; x=1764062052; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:subject:reply-to:from:user-agent :mime-version:date:message-id:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=PebSiGPl1ns0dYlefJC1vEn1itPg8Ola/syHJIvUBo4=; b=YrW8EABapdQ46gLlUo3pQllta3gRyfNvFvvM0rTv7Pm1rfEtIJBYTd9SYsvIV7EVhM KZsfns95moHCCeQRM9YF0F3KaGACFHeZuUEC6ztKxMSNIXZvLiAy0RZtVbD3FUdtxKnV jy13TSBW5pLgpgV7HesZ7SNpuV9Q23HsWgD3ZxvBAJ7XPhECxOk8W8uKZHoh7hWiPKxG MnHN7df5bEGqJrX0DngjrUrHF7hWxl1gXc3nEV23GB9Zp1V6h40cKE772UtP8TtfWR3C thyOHH5gIqH1AMh9/ZE3IOE9YiCOspWt/xFvgSGJLQqjUzFf+Q+ahDKlI3YOVMVePb+3 MElw== X-Gm-Message-State: AOJu0YzD7MHr3Zy5bS4A31eu1JdB+hOl4gq/F6VCM143h6Eg10trxJbx cXJMJbw76t6/bfveVbUfjuH6bmkFe63+w6/GlATedhJO8aGU068CrnFseBnW4YyYIMI= X-Gm-Gg: ASbGncvdlWtyAcXavYqztem+OT0uZXkoboZU/OeYlQ+ZFC/hjiElnaJMI4H6nqy5L7T 1wvSzO7As6TSdwBBOkvw+XugCdR/7T4ULoMS3jitGAtZyQAtD+VGQ1q/7zRwEoEdzY+yykrBVyR 2eLgeskuEIhTW1TCLDwkcqmmQ0tBsXFJIMWfMrGxpzJzkiuwcPAY2BWRmY/WTRAp6Ew33hXkbib 2HfGjWch8x9APovs9MB4Evj7oCPZF9BrJKCKP6wWRCCTDfK3OTjc1XoCrM5fEaRmqB/JvZgsiCz gMBUcjbGpz9I3pEWyYRaZnmfGUhxO+6PM+DE8iZMZ/GjbWdMVj7WBuArqznllSks7rommGUVvVB EIIjPKRPjch1nS6kPhRexlb1iE7s/WYuJwgQbnr33Qq29ZkSZd0P7rCr0cwXHiT0iplGm8+Fu8U BbnReFq5MAa+aycoyZaXbPokNci9zqOPWxf9bCBbrDgKFQcJoAjirKQRfWSLnv6lTbxnZ9PVxbr A== X-Google-Smtp-Source: AGHT+IEYy6/KbbCp7l8IvIhZJFi+0VW8FfDRXOxrQm9yiGuqpablbDwGJU0+st74VLAeFQ7djiYlnQ== X-Received: by 2002:a05:6000:1845:b0:42b:3aee:429e with SMTP id ffacd0b85a97d-42b5938a9d7mr14137889f8f.56.1763457251502; Tue, 18 Nov 2025 01:14:11 -0800 (PST) Received: from ?IPV6:2a01:e0a:3d9:2080:366e:5264:fffe:1c49? ([2a01:e0a:3d9:2080:366e:5264:fffe:1c49]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-42b53f174afsm30272784f8f.33.2025.11.18.01.14.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Nov 2025 01:14:11 -0800 (PST) Message-ID: <254ec2db-bfe2-43aa-8bd5-a45ec89a7d0b@linaro.org> Date: Tue, 18 Nov 2025 10:14:10 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: neil.armstrong@linaro.org Subject: Re: [PATCH v5 2/2] phy: samsung: gs101-ufs: Add .notify_phystate() & hibern8 enter/exit values To: Peter Griffin , Vinod Koul , Kishon Vijay Abraham I , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Tudor Ambarus , Alim Akhtar , Krzysztof Kozlowski Cc: linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, kernel-team@android.com, William Mcvicker , Manivannan Sadhasivam References: <20251112-phy-notify-pmstate-v5-0-39df622d8fcb@linaro.org> <20251112-phy-notify-pmstate-v5-2-39df622d8fcb@linaro.org> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20251112-phy-notify-pmstate-v5-2-39df622d8fcb@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251118_011413_689160_43312B34 X-CRM114-Status: GOOD ( 20.56 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Neil Armstrong Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On 11/12/25 17:27, Peter Griffin wrote: > Implement the .notify_phystate() callback and provide the gs101 specific > phy values that need to be programmed when entering and exiting the hibern8 > state. > > Signed-off-by: Peter Griffin > --- > Changes in v4 > - Resolve Intel 0-day warning > --- > drivers/phy/samsung/phy-gs101-ufs.c | 28 ++++++++++++++++++++++++ > drivers/phy/samsung/phy-samsung-ufs.c | 40 +++++++++++++++++++++++++++++++++++ > drivers/phy/samsung/phy-samsung-ufs.h | 7 ++++++ > 3 files changed, 75 insertions(+) > > diff --git a/drivers/phy/samsung/phy-gs101-ufs.c b/drivers/phy/samsung/phy-gs101-ufs.c > index 17b798da5b5761f8e367599517d2d97bf0bb6b74..a15e1f453f7f3cecd6d3aa75217633ac4b6085d0 100644 > --- a/drivers/phy/samsung/phy-gs101-ufs.c > +++ b/drivers/phy/samsung/phy-gs101-ufs.c > @@ -108,12 +108,39 @@ static const struct samsung_ufs_phy_cfg tensor_gs101_post_pwr_hs_config[] = { > END_UFS_PHY_CFG, > }; > > +static const struct samsung_ufs_phy_cfg tensor_gs101_post_h8_enter[] = { > + PHY_TRSV_REG_CFG_GS101(0x262, 0x08, PWR_MODE_ANY), > + PHY_TRSV_REG_CFG_GS101(0x265, 0x0A, PWR_MODE_ANY), > + PHY_COMN_REG_CFG(0x1, 0x8, PWR_MODE_ANY), > + PHY_COMN_REG_CFG(0x0, 0x86, PWR_MODE_ANY), > + PHY_COMN_REG_CFG(0x8, 0x60, PWR_MODE_HS_ANY), > + PHY_TRSV_REG_CFG_GS101(0x222, 0x08, PWR_MODE_HS_ANY), > + PHY_TRSV_REG_CFG_GS101(0x246, 0x01, PWR_MODE_HS_ANY), > + END_UFS_PHY_CFG, > +}; > + > +static const struct samsung_ufs_phy_cfg tensor_gs101_pre_h8_exit[] = { > + PHY_COMN_REG_CFG(0x0, 0xC6, PWR_MODE_ANY), > + PHY_COMN_REG_CFG(0x1, 0x0C, PWR_MODE_ANY), > + PHY_TRSV_REG_CFG_GS101(0x262, 0x00, PWR_MODE_ANY), > + PHY_TRSV_REG_CFG_GS101(0x265, 0x00, PWR_MODE_ANY), > + PHY_COMN_REG_CFG(0x8, 0xE0, PWR_MODE_HS_ANY), > + PHY_TRSV_REG_CFG_GS101(0x246, 0x03, PWR_MODE_HS_ANY), > + PHY_TRSV_REG_CFG_GS101(0x222, 0x18, PWR_MODE_HS_ANY), > + END_UFS_PHY_CFG, > +}; > + > static const struct samsung_ufs_phy_cfg *tensor_gs101_ufs_phy_cfgs[CFG_TAG_MAX] = { > [CFG_PRE_INIT] = tensor_gs101_pre_init_cfg, > [CFG_PRE_PWR_HS] = tensor_gs101_pre_pwr_hs_config, > [CFG_POST_PWR_HS] = tensor_gs101_post_pwr_hs_config, > }; > > +static const struct samsung_ufs_phy_cfg *tensor_gs101_hibern8_cfgs[] = { > + [CFG_POST_HIBERN8_ENTER] = tensor_gs101_post_h8_enter, > + [CFG_PRE_HIBERN8_EXIT] = tensor_gs101_pre_h8_exit, > +}; > + > static const char * const tensor_gs101_ufs_phy_clks[] = { > "ref_clk", > }; > @@ -170,6 +197,7 @@ static int gs101_phy_wait_for_cdr_lock(struct phy *phy, u8 lane) > > const struct samsung_ufs_phy_drvdata tensor_gs101_ufs_phy = { > .cfgs = tensor_gs101_ufs_phy_cfgs, > + .cfgs_hibern8 = tensor_gs101_hibern8_cfgs, > .isol = { > .offset = TENSOR_GS101_PHY_CTRL, > .mask = TENSOR_GS101_PHY_CTRL_MASK, > diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c > index f3cbe6b17b235bb181b3fae628d75822f0c9183a..ee665f26c2361ff9c3933b10ac713bbd9085b459 100644 > --- a/drivers/phy/samsung/phy-samsung-ufs.c > +++ b/drivers/phy/samsung/phy-samsung-ufs.c > @@ -217,6 +217,44 @@ static int samsung_ufs_phy_set_mode(struct phy *generic_phy, > return 0; > } > > +static int samsung_ufs_phy_notify_state(struct phy *phy, > + union phy_notify state) > +{ > + struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy); > + const struct samsung_ufs_phy_cfg *cfg; > + int i, err = -EINVAL; > + > + if (!ufs_phy->cfgs_hibern8) > + return 0; > + > + if (state.ufs_state == PHY_UFS_HIBERN8_ENTER) > + cfg = ufs_phy->cfgs_hibern8[CFG_POST_HIBERN8_ENTER]; > + else if (state.ufs_state == PHY_UFS_HIBERN8_EXIT) > + cfg = ufs_phy->cfgs_hibern8[CFG_PRE_HIBERN8_EXIT]; > + else > + goto err_out; > + > + for_each_phy_cfg(cfg) { > + for_each_phy_lane(ufs_phy, i) { > + samsung_ufs_phy_config(ufs_phy, cfg, i); > + } > + } > + > + if (state.ufs_state == PHY_UFS_HIBERN8_EXIT) { > + for_each_phy_lane(ufs_phy, i) { > + if (ufs_phy->drvdata->wait_for_cdr) { > + err = ufs_phy->drvdata->wait_for_cdr(phy, i); > + if (err) > + goto err_out; > + } > + } > + } > + > + return 0; > +err_out: > + return err; > +} > + > static int samsung_ufs_phy_exit(struct phy *phy) > { > struct samsung_ufs_phy *ss_phy = get_samsung_ufs_phy(phy); > @@ -233,6 +271,7 @@ static const struct phy_ops samsung_ufs_phy_ops = { > .power_off = samsung_ufs_phy_power_off, > .calibrate = samsung_ufs_phy_calibrate, > .set_mode = samsung_ufs_phy_set_mode, > + .notify_phystate = samsung_ufs_phy_notify_state, > .owner = THIS_MODULE, > }; > > @@ -287,6 +326,7 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev) > phy->dev = dev; > phy->drvdata = drvdata; > phy->cfgs = drvdata->cfgs; > + phy->cfgs_hibern8 = drvdata->cfgs_hibern8; > memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol)); > > if (!of_property_read_u32_index(dev->of_node, "samsung,pmu-syscon", 1, > diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h > index a28f148081d168344b47f2798b00cb098f0a8574..f2c2e744e5bae87c9cfcaa17f4a09456f134966a 100644 > --- a/drivers/phy/samsung/phy-samsung-ufs.h > +++ b/drivers/phy/samsung/phy-samsung-ufs.h > @@ -92,6 +92,11 @@ enum { > CFG_TAG_MAX, > }; > > +enum { > + CFG_POST_HIBERN8_ENTER, > + CFG_PRE_HIBERN8_EXIT, > +}; > + > struct samsung_ufs_phy_cfg { > u32 off_0; > u32 off_1; > @@ -108,6 +113,7 @@ struct samsung_ufs_phy_pmu_isol { > > struct samsung_ufs_phy_drvdata { > const struct samsung_ufs_phy_cfg **cfgs; > + const struct samsung_ufs_phy_cfg **cfgs_hibern8; > struct samsung_ufs_phy_pmu_isol isol; > const char * const *clk_list; > int num_clks; > @@ -124,6 +130,7 @@ struct samsung_ufs_phy { > struct clk_bulk_data *clks; > const struct samsung_ufs_phy_drvdata *drvdata; > const struct samsung_ufs_phy_cfg * const *cfgs; > + const struct samsung_ufs_phy_cfg * const *cfgs_hibern8; > struct samsung_ufs_phy_pmu_isol isol; > u8 lane_cnt; > int ufs_phy_state; > Reviewed-by: Neil Armstrong -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy