From patchwork Wed Apr 9 20:37:47 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Draszik?= X-Patchwork-Id: 14045550 Received: from mail-ej1-f52.google.com (mail-ej1-f52.google.com [209.85.218.52]) (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 A9E1521B9DF for ; Wed, 9 Apr 2025 20:37:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744231077; cv=none; b=JMJ86a8ssEU9ORb68KnBdujqSRfa/ak8QhQ55GJ/BT6qfe+e6F5hvtmlKIj62gYZUb8J+sbWTWRQv5EXYuOijP0vXAFVVVV84ade1uGd40EDvxk/Gi1v6i2JD8z+b3kPuBH1ncJ7DTtKEAGkfIwMCWhZ4HFpgBOmaGb8KAKTjrs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744231077; c=relaxed/simple; bh=QZqp12Gpl5oL/WfKhx+VRQRqmvJcvISjDOsh/fCNvMg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=VKuyfb9lW7CCNnopGMNcDH1l2fvndNpS+Kl5MnMCimMNx7QxxdN7inQkavqnvgzP/HKI5+Ret17AsZOAEi2GX+yK3qnsENnaUivPGqkGdDs0E8Gu6TOa6Grxu4A4VunDjcSGVAHvPfInUAdhXPw9BekCIaPeqb+1bSZ3V3XYG0s= 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=QYT5EXN8; arc=none smtp.client-ip=209.85.218.52 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="QYT5EXN8" Received: by mail-ej1-f52.google.com with SMTP id a640c23a62f3a-abec8b750ebso21693466b.0 for ; Wed, 09 Apr 2025 13:37:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1744231063; x=1744835863; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=10AZOLwAO1V0GSmGNS0bnbti04nTAWbZ/3NrDOuj7Tg=; b=QYT5EXN8rbmA8ypL1EZ3hUBUeQtgHZW/D7u1yIbNm9+xvNo4UgPXqU6JIdTOkpE7RL DezODl4X/Vig++YMhOh5fne6xkNqAlGhLvXPVvTJrHAdf6NopyROQ6wg3+G+bV3uLEub N97qDnvvYMkd7RABHfsnGKctvQ0j4aGMA1e+l3a9H4YaEsNWApSQn9PsGabXhPrIHYRX Si7kMpYonb1h/+h7lb0WU7tLjmjS/UPT9l9Op6rV8IQRQttZEFi6VI/OLI++TacgDuiT qo8oEiIrqpE0XB4SAdBRpcGTaGE+hCt7h5Ub//dwdXS7+wYb/G7W1gpOi5t6jKhDcDe2 NgBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744231063; x=1744835863; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=10AZOLwAO1V0GSmGNS0bnbti04nTAWbZ/3NrDOuj7Tg=; b=dq8PCwpGHrCPwn2THytIJdpqPcpPlPrFaXjtItGrfoE1ilcLxuFEL7+dP3/OUDB/xg fdvpqKHkRf/4/890Vdo1eVv31sRhCr+vtu3CQz1OWU2I/jKj15Hkl1rlQbbnGN5iVcqu KgPPzLsOCQ7UxcP1i22lZwYe/XqELdLfEyTKTEu0BrQnHu2gHVr2hx2vGy+a2anbTgmq cFHvfqwCSj//qBszYKcCaB2X4zupo55jkL0Er/OjhcFaztT+4H8SlKklL8PeZ3W4XNzQ maTsnNuQPY2LuUpCbBzRpE0F5IiYeN/OnjWNwYAN6vMqf3iLgflEbT6D9lc6QcWPcHWZ Cw/A== X-Forwarded-Encrypted: i=1; AJvYcCUvyIjxZuTlrLqA1hrQxvEABTVwXGpdnK2ckIbVXpaEpY4hL9WKykK3J4yBkkSSHE7/ami1Dim9QcE=@vger.kernel.org X-Gm-Message-State: AOJu0YwA8szyKq/a3AzmtjJy7lete//eGmlxkjNRv3KpEChp9TeVgdxG OX5CHlSTVddJBxcddOazTGasyzhJznoxVW1b9R1zFvm5/Q5vOi4ewiSIK/tiRxc= X-Gm-Gg: ASbGncuTBzfDXB1Tjb8VM8n83zvdRQgcoHcCslhJEcH9EKZAj9HlKCoWBSh1CGrxvXb 18BQzdTu4Fq4IcdZh9pY8KwmBwXq+mDmCWXeHZuMMsLMV/m4lFwD+wK/jPJeh3FD0tbLab+bF9I ANI1DRS1l5c+I6FHNZWSuCUEmUjBhrjqRMdZiwGrDf1hiUYhFltjWkhaOCTGWOOMzib0MmSXaLu aq6cS/aGRsk2qBnxm6vSn9dpmyJYcJ9SFKHTlR2oLTPmMDirzXs7oxAU9XaGwdh7PS9YlxaQq2k 52HDQSd0lT8xvjIAH7eg1/5iKToEBgH00+a+jeSj3CqoXSyNBq1aTiV971AErh7FA6pDesPA4as zVIanBx1o9SQ/wa4IxWwNpCmTxug= X-Google-Smtp-Source: AGHT+IFUTssASe24CO9TPtl71HAttAgy9US9arxRXimezJ/dltcAvjXzhwFcY2meWd733DjD83/qUg== X-Received: by 2002:a17:907:980a:b0:abf:6ec7:65e9 with SMTP id a640c23a62f3a-acabd3ac9bemr9253366b.43.1744231062911; Wed, 09 Apr 2025 13:37:42 -0700 (PDT) Received: from puffmais.c.googlers.com (40.162.204.35.bc.googleusercontent.com. [35.204.162.40]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-acaa1ccc001sm145850366b.126.2025.04.09.13.37.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Apr 2025 13:37:42 -0700 (PDT) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Wed, 09 Apr 2025 21:37:47 +0100 Subject: [PATCH v4 26/32] rtc: s5m: prepare for external regmap Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250409-s2mpg10-v4-26-d66d5f39b6bf@linaro.org> References: <20250409-s2mpg10-v4-0-d66d5f39b6bf@linaro.org> In-Reply-To: <20250409-s2mpg10-v4-0-d66d5f39b6bf@linaro.org> To: Krzysztof Kozlowski , Lee Jones , Rob Herring , Conor Dooley , Sylwester Nawrocki , Chanwoo Choi , Alim Akhtar , Michael Turquette , Stephen Boyd , Russell King , Catalin Marinas , Will Deacon , Alexandre Belloni Cc: Peter Griffin , Tudor Ambarus , Will McVicker , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org, =?utf-8?q?Andr=C3=A9_Draszik?= , Krzysztof Kozlowski X-Mailer: b4 0.14.2 The Samsung S2MPG10 PMIC is not connected via I2C as this driver assumes, hence this driver's current approach of creating an I2C-based regmap doesn't work for it, and this driver should use the regmap provided by the parent (core) driver instead for that PMIC. To prepare this driver for s2mpg support, restructure the code to only create a regmap if one isn't provided by the parent. No functional changes, since the parent doesn't provide a regmap for any of the PMICs currently supported by this driver. Having this change separate will simply make the addition of S2MPG10 support more self-contained, without additional restructuring. Reviewed-by: Krzysztof Kozlowski Signed-off-by: André Draszik --- drivers/rtc/rtc-s5m.c | 81 ++++++++++++++++++++++++++++----------------------- 1 file changed, 45 insertions(+), 36 deletions(-) diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c index c7636738b797b8087a0ed6844df62d47427e33b8..f8abcdee8611d1181fb575aeb8d094360538ca7e 100644 --- a/drivers/rtc/rtc-s5m.c +++ b/drivers/rtc/rtc-s5m.c @@ -640,52 +640,61 @@ static int s5m_rtc_probe(struct platform_device *pdev) enum sec_device_type device_type = platform_get_device_id(pdev)->driver_data; struct s5m_rtc_info *info; - struct i2c_client *i2c; - const struct regmap_config *regmap_cfg; int ret, alarm_irq; info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - switch (device_type) { - case S2MPS15X: - regmap_cfg = &s2mps14_rtc_regmap_config; - info->regs = &s2mps15_rtc_regs; - alarm_irq = S2MPS14_IRQ_RTCA0; - break; - case S2MPS14X: - regmap_cfg = &s2mps14_rtc_regmap_config; - info->regs = &s2mps14_rtc_regs; - alarm_irq = S2MPS14_IRQ_RTCA0; - break; - case S2MPS13X: - regmap_cfg = &s2mps14_rtc_regmap_config; - info->regs = &s2mps13_rtc_regs; - alarm_irq = S2MPS14_IRQ_RTCA0; - break; - case S5M8767X: - regmap_cfg = &s5m_rtc_regmap_config; - info->regs = &s5m_rtc_regs; - alarm_irq = S5M8767_IRQ_RTCA1; - break; - default: + info->regmap = dev_get_regmap(pdev->dev.parent, "rtc"); + if (!info->regmap) { + const struct regmap_config *regmap_cfg; + struct i2c_client *i2c; + + switch (device_type) { + case S2MPS15X: + regmap_cfg = &s2mps14_rtc_regmap_config; + info->regs = &s2mps15_rtc_regs; + alarm_irq = S2MPS14_IRQ_RTCA0; + break; + case S2MPS14X: + regmap_cfg = &s2mps14_rtc_regmap_config; + info->regs = &s2mps14_rtc_regs; + alarm_irq = S2MPS14_IRQ_RTCA0; + break; + case S2MPS13X: + regmap_cfg = &s2mps14_rtc_regmap_config; + info->regs = &s2mps13_rtc_regs; + alarm_irq = S2MPS14_IRQ_RTCA0; + break; + case S5M8767X: + regmap_cfg = &s5m_rtc_regmap_config; + info->regs = &s5m_rtc_regs; + alarm_irq = S5M8767_IRQ_RTCA1; + break; + default: + return dev_err_probe(&pdev->dev, -ENODEV, + "Unsupported device type %d\n", + device_type); + } + + i2c = devm_i2c_new_dummy_device(&pdev->dev, + s5m87xx->i2c->adapter, + RTC_I2C_ADDR); + if (IS_ERR(i2c)) + return dev_err_probe(&pdev->dev, PTR_ERR(i2c), + "Failed to allocate I2C\n"); + + info->regmap = devm_regmap_init_i2c(i2c, regmap_cfg); + if (IS_ERR(info->regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(info->regmap), + "Failed to allocate regmap\n"); + } else { return dev_err_probe(&pdev->dev, -ENODEV, - "Device type %d is not supported by RTC driver\n", + "Unsupported device type %d\n", device_type); } - i2c = devm_i2c_new_dummy_device(&pdev->dev, s5m87xx->i2c->adapter, - RTC_I2C_ADDR); - if (IS_ERR(i2c)) - return dev_err_probe(&pdev->dev, PTR_ERR(i2c), - "Failed to allocate I2C for RTC\n"); - - info->regmap = devm_regmap_init_i2c(i2c, regmap_cfg); - if (IS_ERR(info->regmap)) - return dev_err_probe(&pdev->dev, PTR_ERR(info->regmap), - "Failed to allocate RTC register map\n"); - info->dev = &pdev->dev; info->s5m87xx = s5m87xx; info->device_type = device_type;