From patchwork Thu Oct 31 15:00:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 13857997 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 245BB1C9EC7 for ; Thu, 31 Oct 2024 15:00:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730386860; cv=none; b=Kh+T0c1Y137PMrnTi0F9Ha74zM8t6gj5Qnu2AQ25Ca435OikKSdxT7+qgHgqLkCvPuwabtevAgW4lEk0qdtGEoUAQyARv3XqxE7VBiZ0v0lWAsMTtNKL8bd9UqYBpxEl1Bvgc6yijGv4XvCTMAFYo9pivsiPdpau6Squ2u9taw8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730386860; c=relaxed/simple; bh=5/Nc/N5JqCK0IK8C8Y5crHGB82OXAuUKbGNn5MsIM4E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lftvIgCDSpUArzN4WEQK5TXHs+VAggRJFz61vECLO0Vbm2L/Xduq1WTO5ZhUUwLsFZkj2eQQOj5b/ybJC7Savml6PofLOgDnlvh66wEKO/X4c4LYnvzOaV3wYHdVb/1HauOgnLJ7WS3MmorIjT80Bn716Bgnfp8rb0s1Z7np5r8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=GajoBQrn; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="GajoBQrn" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-4315e62afe0so9074475e9.1 for ; Thu, 31 Oct 2024 08:00:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1730386856; x=1730991656; 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=BNj/fO2D5WmaTEfTa8PNOYPo7uMWdpoJlT4sv1Vsh0M=; b=GajoBQrnTQe4R+6dOMSeEm0cXMpCBQyXb95FTxmQ0jokUoC/LC2I1mcWoroaVjVTXd 0c/ShK7JxzjTRMR0yAG6KKUL3r/5Pw9wNlTqEV5aH1ZGYlCL4dxIb2miNls/75ZJcTlK IMkk5ibn3t429z8VgYS7g8LhSTBffeVpmibdJr/bXmfnc1wuGooe1Qs4rFiHVYB2IpAv pe0XYxFm3b6S6OC5ejC/Si70M65E7M6zD1EB1Mrfmq7POFJ2hr58DU+qTXFtUWy9h/0d mRqt49KVyUwHd5yz73jX+OgwEJd+Dm2SP3xgZgWRGYSMUn22wtwG9plNcmq/xkq38G5O r52A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730386856; x=1730991656; 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=BNj/fO2D5WmaTEfTa8PNOYPo7uMWdpoJlT4sv1Vsh0M=; b=IcVOZ9zUFPVC4sMsRE93qz4Cygh4CefJn1f79rSvyAqtuDW9My2QhEdfD9Z6rGtB5f bih/WocNRk+k5eBi1EaQQd0nTtqD04TcTgk0COgniM3n+m5ABKIAYZsnVZIYuqltVkQ7 YcYNx+ZvlSTHUbTqdgZbm4lToxj2D0fa3nvPwhtJufn1hrbztMnNtOVUqdQYoV4efgF4 +EUGn7Y00jeVSVaZW14Ya7WM+OU0j4EncsC7kVKeVoX1CiM4tD/kxuiPvFz4TjftndY1 L0ZJR4q7fi6nWjPz0lsF13jqT2uPmssdkBOkHED37Q5Jc3izMSJnyRFZ3c/Tzbu3Waai wGAw== X-Forwarded-Encrypted: i=1; AJvYcCV9G+tHUWIgp4p7+XeJEadrMRomG/+WicPeV8c5PLEvVhucZ1BBdy6K9UkRtqZ0pux7aNLptfSPsBFO0Mw/Z2Xa9w==@vger.kernel.org X-Gm-Message-State: AOJu0YwFaz92LmPzSHu1FtsYiYh83Pb4QhDp/QcdX2YhtPuUEIz8V5D1 3SBJfVfmb8SXmOlu0L0HCVwSD1+W92PIRT88Vgwy3JEmfdYKFX13QoGoRlRpW7I= X-Google-Smtp-Source: AGHT+IFk2eCgQm8YNMTKlqq1iucR50hnkbAH1iMz8u+bWLPGYs3QFvnZ+3u+58W5gWdqPaK2uS9iZg== X-Received: by 2002:a05:600c:4e46:b0:430:52ec:1e2b with SMTP id 5b1f17b1804b1-4319ad2b89emr185435505e9.29.1730386854912; Thu, 31 Oct 2024 08:00:54 -0700 (PDT) Received: from gpeter-l.lan ([145.224.65.232]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-431bd8e8524sm59163225e9.5.2024.10.31.08.00.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Oct 2024 08:00:53 -0700 (PDT) From: Peter Griffin To: alim.akhtar@samsung.com, James.Bottomley@HansenPartnership.com, martin.petersen@oracle.com, avri.altman@wdc.com, bvanassche@acm.org, krzk@kernel.org Cc: tudor.ambarus@linaro.org, ebiggers@kernel.org, andre.draszik@linaro.org, kernel-team@android.com, willmcvicker@google.com, linux-scsi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Griffin Subject: [PATCH v3 13/14] scsi: ufs: exynos: gs101: enable clock gating with hibern8 Date: Thu, 31 Oct 2024 15:00:32 +0000 Message-ID: <20241031150033.3440894-14-peter.griffin@linaro.org> X-Mailer: git-send-email 2.47.0.163.g1226f6d8fa-goog In-Reply-To: <20241031150033.3440894-1-peter.griffin@linaro.org> References: <20241031150033.3440894-1-peter.griffin@linaro.org> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enable clock gating and hibern8 capabilities for gs101. This leads to a significantly cooler phone when running the upstream kernel. The exynos_ufs_post_hibern8() hook is also updated to remove the UIC_CMD_DME_HIBER_EXIT code path as this causes a hang on gs101. The code path is removed rather than re-factored as no other SoC in ufs-exynos driver sets UFSHCD_CAP_HIBERN8_WITH_CLK_GATING capability. Additionally until the previous commit the hibern8 callbacks were broken anyway as they expected a bool. Signed-off-by: Peter Griffin Reviewed-by: Tudor Ambarus --- drivers/ufs/host/ufs-exynos.c | 24 ++++-------------------- 1 file changed, 4 insertions(+), 20 deletions(-) diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 9b6c4cfd7665..91827b3e582b 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -224,6 +224,9 @@ static int gs101_ufs_drv_init(struct exynos_ufs *ufs) /* Enable WriteBooster */ hba->caps |= UFSHCD_CAP_WB_EN; + /* Enable clock gating and hibern8 */ + hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_HIBERN8_WITH_CLK_GATING; + /* set ACG to be controlled by UFS_ACG_DISABLE */ reg = hci_readl(ufs, HCI_IOP_ACG_DISABLE); hci_writel(ufs, reg & (~HCI_IOP_ACG_DISABLE_EN), HCI_IOP_ACG_DISABLE); @@ -1563,26 +1566,7 @@ static void exynos_ufs_post_hibern8(struct ufs_hba *hba, enum uic_cmd_dme cmd) { struct exynos_ufs *ufs = ufshcd_get_variant(hba); - if (cmd == UIC_CMD_DME_HIBER_EXIT) { - u32 cur_mode = 0; - u32 pwrmode; - - if (ufshcd_is_hs_mode(&ufs->dev_req_params)) - pwrmode = FAST_MODE; - else - pwrmode = SLOW_MODE; - - ufshcd_dme_get(hba, UIC_ARG_MIB(PA_PWRMODE), &cur_mode); - if (cur_mode != (pwrmode << 4 | pwrmode)) { - dev_warn(hba->dev, "%s: power mode change\n", __func__); - hba->pwr_info.pwr_rx = (cur_mode >> 4) & 0xf; - hba->pwr_info.pwr_tx = cur_mode & 0xf; - ufshcd_config_pwr_mode(hba, &hba->max_pwr_info.info); - } - - if (!(ufs->opts & EXYNOS_UFS_OPT_SKIP_CONNECTION_ESTAB)) - exynos_ufs_establish_connt(ufs); - } else if (cmd == UIC_CMD_DME_HIBER_ENTER) { + if (cmd == UIC_CMD_DME_HIBER_ENTER) { ufs->entry_hibern8_t = ktime_get(); exynos_ufs_gate_clks(ufs); if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL)