From patchwork Sat Jan 11 09:51:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 207418 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4A62C33CA4 for ; Sat, 11 Jan 2020 09:51:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A46ED2072E for ; Sat, 11 Jan 2020 09:51:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728811AbgAKJvn (ORCPT ); Sat, 11 Jan 2020 04:51:43 -0500 Received: from mail-lf1-f67.google.com ([209.85.167.67]:39722 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728818AbgAKJvn (ORCPT ); Sat, 11 Jan 2020 04:51:43 -0500 Received: by mail-lf1-f67.google.com with SMTP id y1so3347815lfb.6; Sat, 11 Jan 2020 01:51:41 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=ASxRl7Kg7FhdxZcxno1ZXnEAPSGS0vomnYmppeZou4E=; b=dGZuMJZXHS4mWDo3I+HQE26/KMno4EocWJHSWUxx8aM91EVG5THKz4PMBFGncbCTVy i/B7o7NbuB/hFfoU8Z8KaDHit4lpu97hUIyJ2Ei5oO6FnSBp9l1U6/ZjPM97ZovKZztT K3HHG3n+SPxeGgJ9gaQ9Fvrr11mAm/UEa5SodKacV8OX42aN2yUTdgdTzLF6uKCC2Ufe cw/hIbFb53RTtVdfM4v1EW2RJyPlVRrxbObGyK4CL3z4r24j/BgnYiHZ6so2j74HWbL1 Gk8zKC315vAajZyj2Io4SOP91VD039Dh5bCtBNXKRDAkDLQnz9DzKUiLFdd9rPOyR3vq JbuA== X-Gm-Message-State: APjAAAXG7KFyjjtq8+/ZGGHiAjnQ+0eV51s2vBKXNerp3J8fIu0V1OEv XWE2bERNPgyTfKMbhtACY9Q= X-Google-Smtp-Source: APXvYqxfXIySaS60XqfZV4pzEXbLcH5koEhoWP0ZtJAeVKqueIfdyXepi1eQLQ5myNq0D0RSciYABg== X-Received: by 2002:a19:5e0a:: with SMTP id s10mr4912923lfb.165.1578736300531; Sat, 11 Jan 2020 01:51:40 -0800 (PST) Received: from localhost.localdomain (dc7t7ryyyyyyyyyyyyybt-3.rev.dnainternet.fi. [2001:14ba:16e1:b700::3]) by smtp.gmail.com with ESMTPSA id k25sm2271192lji.42.2020.01.11.01.51.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 Jan 2020 01:51:40 -0800 (PST) Date: Sat, 11 Jan 2020 11:51:33 +0200 From: Matti Vaittinen To: mazziesaccount@gmail.com, matti.vaittinen@fi.rohmeurope.com Cc: Jacek Anaszewski , Pavel Machek , Dan Murphy , Rob Herring , Mark Rutland , Michael Turquette , Stephen Boyd , Linus Walleij , Bartosz Golaszewski , Liam Girdwood , Mark Brown , Alessandro Zummo , Alexandre Belloni , linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org Subject: [PATCH v9 07/12] clk: bd718x7: Support ROHM BD71828 clk block Message-ID: <778e09c62ac7e4f57625e62ed1e1752cfc001c31.1578644144.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org BD71828GW is a single-chip power management IC for battery-powered portable devices. Add support for controlling BD71828 clk using bd718x7 driver. Signed-off-by: Matti Vaittinen Acked-for-MFD-by: Lee Jones Acked-by: Stephen Boyd --- No changes since v8 drivers/clk/Kconfig | 6 ++--- drivers/clk/clk-bd718x7.c | 38 +++++++++++++++++++++++--------- include/linux/mfd/rohm-bd70528.h | 6 ----- include/linux/mfd/rohm-bd71828.h | 4 ---- include/linux/mfd/rohm-bd718x7.h | 6 ----- 5 files changed, 31 insertions(+), 29 deletions(-) diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 45653a0e6ecd..ac5981ce2477 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -305,10 +305,10 @@ config COMMON_CLK_MMP2 Support for Marvell MMP2 and MMP3 SoC clocks config COMMON_CLK_BD718XX - tristate "Clock driver for ROHM BD718x7 PMIC" - depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528 + tristate "Clock driver for 32K clk gates on ROHM PMICs" + depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528 || MFD_ROHM_BD71828 help - This driver supports ROHM BD71837, ROHM BD71847 and + This driver supports ROHM BD71837, ROHM BD71847, ROHM BD71828 and ROHM BD70528 PMICs clock gates. config COMMON_CLK_FIXED_MMIO diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c index 33699ee1bdf3..b52e8d6f660c 100644 --- a/drivers/clk/clk-bd718x7.c +++ b/drivers/clk/clk-bd718x7.c @@ -7,12 +7,25 @@ #include #include #include -#include -#include +#include #include #include #include +/* clk control registers */ +/* BD70528 */ +#define BD70528_REG_OUT32K 0x2c +/* BD71828 */ +#define BD71828_REG_OUT32K 0x4B +/* BD71837 and BD71847 */ +#define BD718XX_REG_OUT32K 0x2E + +/* + * BD71837, BD71847, BD70528 and BD71828 all use bit [0] to clk output control + */ +#define CLK_OUT_EN_MASK BIT(0) + + struct bd718xx_clk { struct clk_hw hw; u8 reg; @@ -21,10 +34,8 @@ struct bd718xx_clk { struct rohm_regmap_dev *mfd; }; -static int bd71837_clk_set(struct clk_hw *hw, int status) +static int bd71837_clk_set(struct bd718xx_clk *c, unsigned int status) { - struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw); - return regmap_update_bits(c->mfd->regmap, c->reg, c->mask, status); } @@ -33,14 +44,16 @@ static void bd71837_clk_disable(struct clk_hw *hw) int rv; struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw); - rv = bd71837_clk_set(hw, 0); + rv = bd71837_clk_set(c, 0); if (rv) dev_dbg(&c->pdev->dev, "Failed to disable 32K clk (%d)\n", rv); } static int bd71837_clk_enable(struct clk_hw *hw) { - return bd71837_clk_set(hw, 1); + struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw); + + return bd71837_clk_set(c, 0xffffffff); } static int bd71837_clk_is_enabled(struct clk_hw *hw) @@ -92,11 +105,15 @@ static int bd71837_clk_probe(struct platform_device *pdev) case ROHM_CHIP_TYPE_BD71837: case ROHM_CHIP_TYPE_BD71847: c->reg = BD718XX_REG_OUT32K; - c->mask = BD718XX_OUT32K_EN; + c->mask = CLK_OUT_EN_MASK; + break; + case ROHM_CHIP_TYPE_BD71828: + c->reg = BD71828_REG_OUT32K; + c->mask = CLK_OUT_EN_MASK; break; case ROHM_CHIP_TYPE_BD70528: - c->reg = BD70528_REG_CLK_OUT; - c->mask = BD70528_CLK_OUT_EN_MASK; + c->reg = BD70528_REG_OUT32K; + c->mask = CLK_OUT_EN_MASK; break; default: dev_err(&pdev->dev, "Unknown clk chip\n"); @@ -126,6 +143,7 @@ static const struct platform_device_id bd718x7_clk_id[] = { { "bd71837-clk", ROHM_CHIP_TYPE_BD71837 }, { "bd71847-clk", ROHM_CHIP_TYPE_BD71847 }, { "bd70528-clk", ROHM_CHIP_TYPE_BD70528 }, + { "bd71828-clk", ROHM_CHIP_TYPE_BD71828 }, { }, }; MODULE_DEVICE_TABLE(platform, bd718x7_clk_id); diff --git a/include/linux/mfd/rohm-bd70528.h b/include/linux/mfd/rohm-bd70528.h index 1013e60c5b25..2ad2320d0a96 100644 --- a/include/linux/mfd/rohm-bd70528.h +++ b/include/linux/mfd/rohm-bd70528.h @@ -89,10 +89,6 @@ struct bd70528_data { #define BD70528_REG_GPIO3_OUT 0x52 #define BD70528_REG_GPIO4_OUT 0x54 -/* clk control */ - -#define BD70528_REG_CLK_OUT 0x2c - /* RTC */ #define BD70528_REG_RTC_COUNT_H 0x2d @@ -309,8 +305,6 @@ enum { #define BD70528_GPIO_IN_STATE_BASE 1 -#define BD70528_CLK_OUT_EN_MASK 0x1 - /* RTC masks to mask out reserved bits */ #define BD70528_MASK_RTC_SEC 0x7f diff --git a/include/linux/mfd/rohm-bd71828.h b/include/linux/mfd/rohm-bd71828.h index eb0557eb5314..d013e03f742d 100644 --- a/include/linux/mfd/rohm-bd71828.h +++ b/include/linux/mfd/rohm-bd71828.h @@ -183,9 +183,6 @@ enum { #define BD71828_REG_CHG_STATE 0x65 #define BD71828_REG_CHG_FULL 0xd2 -/* CLK */ -#define BD71828_REG_OUT32K 0x4B - /* LEDs */ #define BD71828_REG_LED_CTRL 0x4A #define BD71828_MASK_LED_AMBER 0x80 @@ -417,7 +414,6 @@ enum { #define BD71828_INT_RTC1_MASK 0x2 #define BD71828_INT_RTC2_MASK 0x4 -#define BD71828_OUT32K_EN 0x1 #define BD71828_OUT_TYPE_MASK 0x2 #define BD71828_OUT_TYPE_OPEN_DRAIN 0x0 #define BD71828_OUT_TYPE_CMOS 0x2 diff --git a/include/linux/mfd/rohm-bd718x7.h b/include/linux/mfd/rohm-bd718x7.h index 7f2dbde402a1..bee2474a8f9f 100644 --- a/include/linux/mfd/rohm-bd718x7.h +++ b/include/linux/mfd/rohm-bd718x7.h @@ -191,12 +191,6 @@ enum { #define IRQ_ON_REQ 0x02 #define IRQ_STBY_REQ 0x01 -/* BD718XX_REG_OUT32K bits */ -#define BD718XX_OUT32K_EN 0x01 - -/* BD7183XX gated clock rate */ -#define BD718XX_CLK_RATE 32768 - /* ROHM BD718XX irqs */ enum { BD718XX_INT_STBY_REQ,