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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 02852ECE58C for ; Fri, 11 Oct 2019 07:18:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A55D12196E for ; Fri, 11 Oct 2019 07:18:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="MnXnZKjd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727268AbfJKHSf (ORCPT ); Fri, 11 Oct 2019 03:18:35 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:35434 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727321AbfJKHSf (ORCPT ); Fri, 11 Oct 2019 03:18:35 -0400 Received: by mail-lj1-f193.google.com with SMTP id m7so8780940lji.2 for ; Fri, 11 Oct 2019 00:18:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=BgfOd7fhVM795kEQ2B7nrXpqY7dqtQxedYaJzfIq2iM=; b=MnXnZKjd/iM29br7vQ/eR8TJZxXqOhnUuITHIp/DMODcy+r+y8VrVnoROx/nmBzFfi WZkN2Uk6/Q3PX2rF2hMSmQLwQIASFtVTvZZu8wybITdG7tD/B/UWd2D4wqIRZazTmdjC h5zWGZ/vuXufzpNBlQfmMZ6voReiqF8MYuiuOBGC9SOgTscYTiEavVZu7rA2Z39xKhTm SKsFHSb7MrzvXnL+BGNReXbEYtL4bkfc994DFo+w4qZde/CBHTq/wD8kEKraraOmLCyN G0L7X7sOVNvb1JManETzvQPbtg5ggbXhaka8ohko3hLL6ouhu/JGVXZL9N2DSmII+T2S 05fQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=BgfOd7fhVM795kEQ2B7nrXpqY7dqtQxedYaJzfIq2iM=; b=YxS3pv2cj26n+VFAu7NyzPpQJV4rqMAPj5vx6B8McoYI7TlTOISaGCN+GbzRHn2NY2 CRJKN5/3rOFb+TSLxmrRGdIPdPw0OZl2GZsNuwmjKJK/bMWmPCHT2zfxqxb26gzFNUdd WsHEGmdDujC3k2X0onLgKPYqjCJvkkHdRwrs8xfV5aNFZM/SoKV+Cg+8jUpe3++V9Qd3 gXzk/RERcfGM7Na4ltybDX0JNhZQ7UTn/9sfQYs8PFHt/fsf5hQpcdMkUwJOG7s/j9Oa KzEF5de4+oVo1JKUYiJ7fBMRDv7ZQdFzO66GereokBY6ZfnnLHZ9CfOoNmX6yrKoucRe Uhsg== X-Gm-Message-State: APjAAAUuL6Lkr7BBApn2jn61GIShp3vrbpwOU4g5XhBY/QtOS4HM69zc qiz6GDYf0pNBJPewqoUQBhJ5Cw== X-Google-Smtp-Source: APXvYqweLub695TVRYaz82AT4ifBe3Tj6rZVMBTwGFbuD9fOofKoCpCtkj/4brqBATKpoSkQsjUQog== X-Received: by 2002:a2e:8204:: with SMTP id w4mr8534883ljg.3.1570778308389; Fri, 11 Oct 2019 00:18:28 -0700 (PDT) Received: from genomnajs.ideon.se ([85.235.10.227]) by smtp.gmail.com with ESMTPSA id v26sm2047343lfg.27.2019.10.11.00.18.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Oct 2019 00:18:27 -0700 (PDT) From: Linus Walleij To: Lee Jones , Jonathan Cameron , linux-iio@vger.kernel.org, Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler Cc: Mboumba Cedric Madianga , Linus Walleij Subject: [PATCH 7/7 v4] mfd: Switch the AB8500 GPADC to IIO Date: Fri, 11 Oct 2019 09:18:05 +0200 Message-Id: <20191011071805.5554-8-linus.walleij@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191011071805.5554-1-linus.walleij@linaro.org> References: <20191011071805.5554-1-linus.walleij@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The AB8500 GPADC driver is indeed a "general purpose ADC" driver, and while the IIO subsystem did not exist when the driver was first merged, it is never too late to clean things up and move it to the right place. Nowadays IIO provides the right abstractions and interfaces to do generic ADC work in the kernel. We have to cut a bunch of debugfs luggage to make this transition swift, but all these files to is read out the raw values of the ADC and the IIO subsystem already has a standard sysfs ABI for doing exactly this: no debugfs is needed. Acked-by: Lee Jones Signed-off-by: Linus Walleij --- ChangeLog v3->v4: - No changes just resending ChangeLog v2->v3: - Rebased on v5.4-rc1 (some debugfs business changed) ChangeLog v1->v2: - Woke up after 2 and a hald year of inactivity and rebased the patch. - Split the new IIO driver into its own patch just adding the new driver. - Convert an extraneous dev_info() to dev_dbg() to silence the debug log. This should not be applied to the MFD tree right now, it will be applied along with the other changes in ARM SoC. --- drivers/mfd/Kconfig | 7 - drivers/mfd/Makefile | 1 - drivers/mfd/ab8500-debugfs.c | 715 --------------- drivers/mfd/ab8500-gpadc.c | 1075 ----------------------- include/linux/mfd/abx500/ab8500-gpadc.h | 75 -- 5 files changed, 1873 deletions(-) delete mode 100644 drivers/mfd/ab8500-gpadc.c delete mode 100644 include/linux/mfd/abx500/ab8500-gpadc.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ae24d3ea68ea..420900852166 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1210,13 +1210,6 @@ config AB8500_DEBUG Select this option if you want debug information using the debug filesystem, debugfs. -config AB8500_GPADC - bool "ST-Ericsson AB8500 GPADC driver" - depends on AB8500_CORE && REGULATOR_AB8500 - default y - help - AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage - config MFD_DB8500_PRCMU bool "ST-Ericsson DB8500 Power Reset Control Management Unit" depends on UX500_SOC_DB8500 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index c1067ea46204..aed99f08739f 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -177,7 +177,6 @@ obj-$(CONFIG_ABX500_CORE) += abx500-core.o obj-$(CONFIG_AB3100_CORE) += ab3100-core.o obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o -obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o obj-$(CONFIG_MFD_DB8500_PRCMU) += db8500-prcmu.o # ab8500-core need to come after db8500-prcmu (which provides the channel) obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c index f4e26b6e5362..1a9a3414d4fa 100644 --- a/drivers/mfd/ab8500-debugfs.c +++ b/drivers/mfd/ab8500-debugfs.c @@ -84,7 +84,6 @@ #include #include -#include #ifdef CONFIG_DEBUG_FS #include @@ -103,11 +102,6 @@ static int num_irqs; static struct device_attribute **dev_attr; static char **event_name; -static u8 avg_sample = SAMPLE_16; -static u8 trig_edge = RISING_EDGE; -static u8 conv_type = ADC_SW; -static u8 trig_timer; - /** * struct ab8500_reg_range * @first: the first address of the range @@ -152,7 +146,6 @@ static struct hwreg_cfg hwreg_cfg = { }; #define AB8500_NAME_STRING "ab8500" -#define AB8500_ADC_NAME_STRING "gpadc" #define AB8500_NUM_BANKS AB8500_DEBUG_FIELD_LAST #define AB8500_REV_REG 0x80 @@ -1646,633 +1639,6 @@ static int ab8500_modem_show(struct seq_file *s, void *p) DEFINE_SHOW_ATTRIBUTE(ab8500_modem); -static int ab8500_gpadc_bat_ctrl_show(struct seq_file *s, void *p) -{ - int bat_ctrl_raw; - int bat_ctrl_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL, - avg_sample, trig_edge, trig_timer, conv_type); - bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, - BAT_CTRL, bat_ctrl_raw); - - seq_printf(s, "%d,0x%X\n", bat_ctrl_convert, bat_ctrl_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_bat_ctrl); - -static int ab8500_gpadc_btemp_ball_show(struct seq_file *s, void *p) -{ - int btemp_ball_raw; - int btemp_ball_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL, - avg_sample, trig_edge, trig_timer, conv_type); - btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, - btemp_ball_raw); - - seq_printf(s, "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_btemp_ball); - -static int ab8500_gpadc_main_charger_v_show(struct seq_file *s, void *p) -{ - int main_charger_v_raw; - int main_charger_v_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V, - avg_sample, trig_edge, trig_timer, conv_type); - main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, - MAIN_CHARGER_V, main_charger_v_raw); - - seq_printf(s, "%d,0x%X\n", main_charger_v_convert, main_charger_v_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_main_charger_v); - -static int ab8500_gpadc_acc_detect1_show(struct seq_file *s, void *p) -{ - int acc_detect1_raw; - int acc_detect1_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1, - avg_sample, trig_edge, trig_timer, conv_type); - acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1, - acc_detect1_raw); - - seq_printf(s, "%d,0x%X\n", acc_detect1_convert, acc_detect1_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_acc_detect1); - -static int ab8500_gpadc_acc_detect2_show(struct seq_file *s, void *p) -{ - int acc_detect2_raw; - int acc_detect2_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2, - avg_sample, trig_edge, trig_timer, conv_type); - acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc, - ACC_DETECT2, acc_detect2_raw); - - seq_printf(s, "%d,0x%X\n", acc_detect2_convert, acc_detect2_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_acc_detect2); - -static int ab8500_gpadc_aux1_show(struct seq_file *s, void *p) -{ - int aux1_raw; - int aux1_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1, - avg_sample, trig_edge, trig_timer, conv_type); - aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1, - aux1_raw); - - seq_printf(s, "%d,0x%X\n", aux1_convert, aux1_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_aux1); - -static int ab8500_gpadc_aux2_show(struct seq_file *s, void *p) -{ - int aux2_raw; - int aux2_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2, - avg_sample, trig_edge, trig_timer, conv_type); - aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2, - aux2_raw); - - seq_printf(s, "%d,0x%X\n", aux2_convert, aux2_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_aux2); - -static int ab8500_gpadc_main_bat_v_show(struct seq_file *s, void *p) -{ - int main_bat_v_raw; - int main_bat_v_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V, - avg_sample, trig_edge, trig_timer, conv_type); - main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, - main_bat_v_raw); - - seq_printf(s, "%d,0x%X\n", main_bat_v_convert, main_bat_v_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_main_bat_v); - -static int ab8500_gpadc_vbus_v_show(struct seq_file *s, void *p) -{ - int vbus_v_raw; - int vbus_v_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V, - avg_sample, trig_edge, trig_timer, conv_type); - vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V, - vbus_v_raw); - - seq_printf(s, "%d,0x%X\n", vbus_v_convert, vbus_v_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_vbus_v); - -static int ab8500_gpadc_main_charger_c_show(struct seq_file *s, void *p) -{ - int main_charger_c_raw; - int main_charger_c_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C, - avg_sample, trig_edge, trig_timer, conv_type); - main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, - MAIN_CHARGER_C, main_charger_c_raw); - - seq_printf(s, "%d,0x%X\n", main_charger_c_convert, main_charger_c_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_main_charger_c); - -static int ab8500_gpadc_usb_charger_c_show(struct seq_file *s, void *p) -{ - int usb_charger_c_raw; - int usb_charger_c_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C, - avg_sample, trig_edge, trig_timer, conv_type); - usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, - USB_CHARGER_C, usb_charger_c_raw); - - seq_printf(s, "%d,0x%X\n", usb_charger_c_convert, usb_charger_c_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_usb_charger_c); - -static int ab8500_gpadc_bk_bat_v_show(struct seq_file *s, void *p) -{ - int bk_bat_v_raw; - int bk_bat_v_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V, - avg_sample, trig_edge, trig_timer, conv_type); - bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, - BK_BAT_V, bk_bat_v_raw); - - seq_printf(s, "%d,0x%X\n", bk_bat_v_convert, bk_bat_v_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_bk_bat_v); - -static int ab8500_gpadc_die_temp_show(struct seq_file *s, void *p) -{ - int die_temp_raw; - int die_temp_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP, - avg_sample, trig_edge, trig_timer, conv_type); - die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP, - die_temp_raw); - - seq_printf(s, "%d,0x%X\n", die_temp_convert, die_temp_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_die_temp); - -static int ab8500_gpadc_usb_id_show(struct seq_file *s, void *p) -{ - int usb_id_raw; - int usb_id_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - usb_id_raw = ab8500_gpadc_read_raw(gpadc, USB_ID, - avg_sample, trig_edge, trig_timer, conv_type); - usb_id_convert = ab8500_gpadc_ad_to_voltage(gpadc, USB_ID, - usb_id_raw); - - seq_printf(s, "%d,0x%X\n", usb_id_convert, usb_id_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_usb_id); - -static int ab8540_gpadc_xtal_temp_show(struct seq_file *s, void *p) -{ - int xtal_temp_raw; - int xtal_temp_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - xtal_temp_raw = ab8500_gpadc_read_raw(gpadc, XTAL_TEMP, - avg_sample, trig_edge, trig_timer, conv_type); - xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP, - xtal_temp_raw); - - seq_printf(s, "%d,0x%X\n", xtal_temp_convert, xtal_temp_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_xtal_temp); - -static int ab8540_gpadc_vbat_true_meas_show(struct seq_file *s, void *p) -{ - int vbat_true_meas_raw; - int vbat_true_meas_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - vbat_true_meas_raw = ab8500_gpadc_read_raw(gpadc, VBAT_TRUE_MEAS, - avg_sample, trig_edge, trig_timer, conv_type); - vbat_true_meas_convert = - ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS, - vbat_true_meas_raw); - - seq_printf(s, "%d,0x%X\n", vbat_true_meas_convert, vbat_true_meas_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_vbat_true_meas); - -static int ab8540_gpadc_bat_ctrl_and_ibat_show(struct seq_file *s, void *p) -{ - int bat_ctrl_raw; - int bat_ctrl_convert; - int ibat_raw; - int ibat_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bat_ctrl_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_CTRL_AND_IBAT, - avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); - - bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, BAT_CTRL, - bat_ctrl_raw); - ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, - ibat_raw); - - seq_printf(s, - "%d,0x%X\n" - "%d,0x%X\n", - bat_ctrl_convert, bat_ctrl_raw, - ibat_convert, ibat_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_bat_ctrl_and_ibat); - -static int ab8540_gpadc_vbat_meas_and_ibat_show(struct seq_file *s, void *p) -{ - int vbat_meas_raw; - int vbat_meas_convert; - int ibat_raw; - int ibat_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - vbat_meas_raw = ab8500_gpadc_double_read_raw(gpadc, VBAT_MEAS_AND_IBAT, - avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); - vbat_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, - vbat_meas_raw); - ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, - ibat_raw); - - seq_printf(s, - "%d,0x%X\n" - "%d,0x%X\n", - vbat_meas_convert, vbat_meas_raw, - ibat_convert, ibat_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_vbat_meas_and_ibat); - -static int ab8540_gpadc_vbat_true_meas_and_ibat_show(struct seq_file *s, void *p) -{ - int vbat_true_meas_raw; - int vbat_true_meas_convert; - int ibat_raw; - int ibat_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - vbat_true_meas_raw = ab8500_gpadc_double_read_raw(gpadc, - VBAT_TRUE_MEAS_AND_IBAT, avg_sample, trig_edge, - trig_timer, conv_type, &ibat_raw); - vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, - VBAT_TRUE_MEAS, vbat_true_meas_raw); - ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, - ibat_raw); - - seq_printf(s, - "%d,0x%X\n" - "%d,0x%X\n", - vbat_true_meas_convert, vbat_true_meas_raw, - ibat_convert, ibat_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_vbat_true_meas_and_ibat); - -static int ab8540_gpadc_bat_temp_and_ibat_show(struct seq_file *s, void *p) -{ - int bat_temp_raw; - int bat_temp_convert; - int ibat_raw; - int ibat_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bat_temp_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_TEMP_AND_IBAT, - avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); - bat_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, - bat_temp_raw); - ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, - ibat_raw); - - seq_printf(s, - "%d,0x%X\n" - "%d,0x%X\n", - bat_temp_convert, bat_temp_raw, - ibat_convert, ibat_raw); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_bat_temp_and_ibat); - -static int ab8540_gpadc_otp_calib_show(struct seq_file *s, void *p) -{ - struct ab8500_gpadc *gpadc; - u16 vmain_l, vmain_h, btemp_l, btemp_h; - u16 vbat_l, vbat_h, ibat_l, ibat_h; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h, - &vbat_l, &vbat_h, &ibat_l, &ibat_h); - seq_printf(s, - "VMAIN_L:0x%X\n" - "VMAIN_H:0x%X\n" - "BTEMP_L:0x%X\n" - "BTEMP_H:0x%X\n" - "VBAT_L:0x%X\n" - "VBAT_H:0x%X\n" - "IBAT_L:0x%X\n" - "IBAT_H:0x%X\n", - vmain_l, vmain_h, btemp_l, btemp_h, - vbat_l, vbat_h, ibat_l, ibat_h); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_otp_calib); - -static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p) -{ - seq_printf(s, "%d\n", avg_sample); - - return 0; -} - -static int ab8500_gpadc_avg_sample_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_gpadc_avg_sample_print, - inode->i_private); -} - -static ssize_t ab8500_gpadc_avg_sample_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_avg_sample; - int err; - - err = kstrtoul_from_user(user_buf, count, 0, &user_avg_sample); - if (err) - return err; - - if ((user_avg_sample == SAMPLE_1) || (user_avg_sample == SAMPLE_4) - || (user_avg_sample == SAMPLE_8) - || (user_avg_sample == SAMPLE_16)) { - avg_sample = (u8) user_avg_sample; - } else { - dev_err(dev, - "debugfs err input: should be egal to 1, 4, 8 or 16\n"); - return -EINVAL; - } - - return count; -} - -static const struct file_operations ab8500_gpadc_avg_sample_fops = { - .open = ab8500_gpadc_avg_sample_open, - .read = seq_read, - .write = ab8500_gpadc_avg_sample_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int ab8500_gpadc_trig_edge_print(struct seq_file *s, void *p) -{ - seq_printf(s, "%d\n", trig_edge); - - return 0; -} - -static int ab8500_gpadc_trig_edge_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_gpadc_trig_edge_print, - inode->i_private); -} - -static ssize_t ab8500_gpadc_trig_edge_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_trig_edge; - int err; - - err = kstrtoul_from_user(user_buf, count, 0, &user_trig_edge); - if (err) - return err; - - if ((user_trig_edge == RISING_EDGE) - || (user_trig_edge == FALLING_EDGE)) { - trig_edge = (u8) user_trig_edge; - } else { - dev_err(dev, "Wrong input:\n" - "Enter 0. Rising edge\n" - "Enter 1. Falling edge\n"); - return -EINVAL; - } - - return count; -} - -static const struct file_operations ab8500_gpadc_trig_edge_fops = { - .open = ab8500_gpadc_trig_edge_open, - .read = seq_read, - .write = ab8500_gpadc_trig_edge_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int ab8500_gpadc_trig_timer_print(struct seq_file *s, void *p) -{ - seq_printf(s, "%d\n", trig_timer); - - return 0; -} - -static int ab8500_gpadc_trig_timer_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_gpadc_trig_timer_print, - inode->i_private); -} - -static ssize_t ab8500_gpadc_trig_timer_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_trig_timer; - int err; - - err = kstrtoul_from_user(user_buf, count, 0, &user_trig_timer); - if (err) - return err; - - if (user_trig_timer & ~0xFF) { - dev_err(dev, - "debugfs error input: should be between 0 to 255\n"); - return -EINVAL; - } - - trig_timer = (u8) user_trig_timer; - - return count; -} - -static const struct file_operations ab8500_gpadc_trig_timer_fops = { - .open = ab8500_gpadc_trig_timer_open, - .read = seq_read, - .write = ab8500_gpadc_trig_timer_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int ab8500_gpadc_conv_type_print(struct seq_file *s, void *p) -{ - seq_printf(s, "%d\n", conv_type); - - return 0; -} - -static int ab8500_gpadc_conv_type_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_gpadc_conv_type_print, - inode->i_private); -} - -static ssize_t ab8500_gpadc_conv_type_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_conv_type; - int err; - - err = kstrtoul_from_user(user_buf, count, 0, &user_conv_type); - if (err) - return err; - - if ((user_conv_type == ADC_SW) - || (user_conv_type == ADC_HW)) { - conv_type = (u8) user_conv_type; - } else { - dev_err(dev, "Wrong input:\n" - "Enter 0. ADC SW conversion\n" - "Enter 1. ADC HW conversion\n"); - return -EINVAL; - } - - return count; -} - -static const struct file_operations ab8500_gpadc_conv_type_fops = { - .open = ab8500_gpadc_conv_type_open, - .read = seq_read, - .write = ab8500_gpadc_conv_type_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - /* * return length of an ASCII numerical value, 0 is string is not a * numerical value. @@ -2647,7 +2013,6 @@ static const struct file_operations ab8500_hwreg_fops = { static int ab8500_debug_probe(struct platform_device *plf) { struct dentry *ab8500_dir; - struct dentry *ab8500_gpadc_dir; struct ab8500 *ab8500; struct resource *res; @@ -2689,9 +2054,6 @@ static int ab8500_debug_probe(struct platform_device *plf) ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL); - ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING, - ab8500_dir); - debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir, &plf->dev, &ab8500_bank_registers_fops); debugfs_create_file("all-banks", S_IRUGO, ab8500_dir, @@ -2727,83 +2089,6 @@ static int ab8500_debug_probe(struct platform_device *plf) &plf->dev, &ab8500_hwreg_fops); debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir, &plf->dev, &ab8500_modem_fops); - debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_bat_ctrl_fops); - debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_btemp_ball_fops); - debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_main_charger_v_fops); - debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_acc_detect1_fops); - debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_acc_detect2_fops); - debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_aux1_fops); - debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_aux2_fops); - debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_main_bat_v_fops); - debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_vbus_v_fops); - debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_main_charger_c_fops); - debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_usb_charger_c_fops); - debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_bk_bat_v_fops); - debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_die_temp_fops); - debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_usb_id_fops); - if (is_ab8540(ab8500)) { - debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_xtal_temp_fops); - debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_vbat_true_meas_fops); - debugfs_create_file("batctrl_and_ibat", (S_IRUGO | S_IWUGO), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_bat_ctrl_and_ibat_fops); - debugfs_create_file("vbatmeas_and_ibat", (S_IRUGO | S_IWUGO), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_vbat_meas_and_ibat_fops); - debugfs_create_file("vbattruemeas_and_ibat", (S_IRUGO | S_IWUGO), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_vbat_true_meas_and_ibat_fops); - debugfs_create_file("battemp_and_ibat", (S_IRUGO | S_IWUGO), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_bat_temp_and_ibat_fops); - debugfs_create_file("otp_calib", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8540_gpadc_otp_calib_fops); - } - debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_avg_sample_fops); - debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_trig_edge_fops); - debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_trig_timer_fops); - debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP), - ab8500_gpadc_dir, &plf->dev, - &ab8500_gpadc_conv_type_fops); return 0; } diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c deleted file mode 100644 index 005f9ee34cd1..000000000000 --- a/drivers/mfd/ab8500-gpadc.c +++ /dev/null @@ -1,1075 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Arun R Murthy - * Author: Daniel Willerud - * Author: Johan Palsson - * Author: M'boumba Cedric Madianga - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * GPADC register offsets - * Bank : 0x0A - */ -#define AB8500_GPADC_CTRL1_REG 0x00 -#define AB8500_GPADC_CTRL2_REG 0x01 -#define AB8500_GPADC_CTRL3_REG 0x02 -#define AB8500_GPADC_AUTO_TIMER_REG 0x03 -#define AB8500_GPADC_STAT_REG 0x04 -#define AB8500_GPADC_MANDATAL_REG 0x05 -#define AB8500_GPADC_MANDATAH_REG 0x06 -#define AB8500_GPADC_AUTODATAL_REG 0x07 -#define AB8500_GPADC_AUTODATAH_REG 0x08 -#define AB8500_GPADC_MUX_CTRL_REG 0x09 -#define AB8540_GPADC_MANDATA2L_REG 0x09 -#define AB8540_GPADC_MANDATA2H_REG 0x0A -#define AB8540_GPADC_APEAAX_REG 0x10 -#define AB8540_GPADC_APEAAT_REG 0x11 -#define AB8540_GPADC_APEAAM_REG 0x12 -#define AB8540_GPADC_APEAAH_REG 0x13 -#define AB8540_GPADC_APEAAL_REG 0x14 - -/* - * OTP register offsets - * Bank : 0x15 - */ -#define AB8500_GPADC_CAL_1 0x0F -#define AB8500_GPADC_CAL_2 0x10 -#define AB8500_GPADC_CAL_3 0x11 -#define AB8500_GPADC_CAL_4 0x12 -#define AB8500_GPADC_CAL_5 0x13 -#define AB8500_GPADC_CAL_6 0x14 -#define AB8500_GPADC_CAL_7 0x15 -/* New calibration for 8540 */ -#define AB8540_GPADC_OTP4_REG_7 0x38 -#define AB8540_GPADC_OTP4_REG_6 0x39 -#define AB8540_GPADC_OTP4_REG_5 0x3A - -/* gpadc constants */ -#define EN_VINTCORE12 0x04 -#define EN_VTVOUT 0x02 -#define EN_GPADC 0x01 -#define DIS_GPADC 0x00 -#define AVG_1 0x00 -#define AVG_4 0x20 -#define AVG_8 0x40 -#define AVG_16 0x60 -#define ADC_SW_CONV 0x04 -#define EN_ICHAR 0x80 -#define BTEMP_PULL_UP 0x08 -#define EN_BUF 0x40 -#define DIS_ZERO 0x00 -#define GPADC_BUSY 0x01 -#define EN_FALLING 0x10 -#define EN_TRIG_EDGE 0x02 -#define EN_VBIAS_XTAL_TEMP 0x02 - -/* GPADC constants from AB8500 spec, UM0836 */ -#define ADC_RESOLUTION 1024 -#define ADC_CH_BTEMP_MIN 0 -#define ADC_CH_BTEMP_MAX 1350 -#define ADC_CH_DIETEMP_MIN 0 -#define ADC_CH_DIETEMP_MAX 1350 -#define ADC_CH_CHG_V_MIN 0 -#define ADC_CH_CHG_V_MAX 20030 -#define ADC_CH_ACCDET2_MIN 0 -#define ADC_CH_ACCDET2_MAX 2500 -#define ADC_CH_VBAT_MIN 2300 -#define ADC_CH_VBAT_MAX 4800 -#define ADC_CH_CHG_I_MIN 0 -#define ADC_CH_CHG_I_MAX 1500 -#define ADC_CH_BKBAT_MIN 0 -#define ADC_CH_BKBAT_MAX 3200 - -/* GPADC constants from AB8540 spec */ -#define ADC_CH_IBAT_MIN (-6000) /* mA range measured by ADC for ibat */ -#define ADC_CH_IBAT_MAX 6000 -#define ADC_CH_IBAT_MIN_V (-60) /* mV range measured by ADC for ibat */ -#define ADC_CH_IBAT_MAX_V 60 -#define IBAT_VDROP_L (-56) /* mV */ -#define IBAT_VDROP_H 56 - -/* This is used to not lose precision when dividing to get gain and offset */ -#define CALIB_SCALE 1000 -/* - * Number of bits shift used to not lose precision - * when dividing to get ibat gain. - */ -#define CALIB_SHIFT_IBAT 20 - -/* Time in ms before disabling regulator */ -#define GPADC_AUDOSUSPEND_DELAY 1 - -#define CONVERSION_TIME 500 /* ms */ - -enum cal_channels { - ADC_INPUT_VMAIN = 0, - ADC_INPUT_BTEMP, - ADC_INPUT_VBAT, - ADC_INPUT_IBAT, - NBR_CAL_INPUTS, -}; - -/** - * struct adc_cal_data - Table for storing gain and offset for the calibrated - * ADC channels - * @gain: Gain of the ADC channel - * @offset: Offset of the ADC channel - */ -struct adc_cal_data { - s64 gain; - s64 offset; - u16 otp_calib_hi; - u16 otp_calib_lo; -}; - -/** - * struct ab8500_gpadc - AB8500 GPADC device information - * @dev: pointer to the struct device - * @node: a list of AB8500 GPADCs, hence prepared for - reentrance - * @parent: pointer to the struct ab8500 - * @ab8500_gpadc_complete: pointer to the struct completion, to indicate - * the completion of gpadc conversion - * @ab8500_gpadc_lock: structure of type mutex - * @regu: pointer to the struct regulator - * @irq_sw: interrupt number that is used by gpadc for Sw - * conversion - * @irq_hw: interrupt number that is used by gpadc for Hw - * conversion - * @cal_data array of ADC calibration data structs - */ -struct ab8500_gpadc { - struct device *dev; - struct list_head node; - struct ab8500 *parent; - struct completion ab8500_gpadc_complete; - struct mutex ab8500_gpadc_lock; - struct regulator *regu; - int irq_sw; - int irq_hw; - struct adc_cal_data cal_data[NBR_CAL_INPUTS]; -}; - -static LIST_HEAD(ab8500_gpadc_list); - -/** - * ab8500_gpadc_get() - returns a reference to the primary AB8500 GPADC - * (i.e. the first GPADC in the instance list) - */ -struct ab8500_gpadc *ab8500_gpadc_get(char *name) -{ - struct ab8500_gpadc *gpadc; - - list_for_each_entry(gpadc, &ab8500_gpadc_list, node) { - if (!strcmp(name, dev_name(gpadc->dev))) - return gpadc; - } - - return ERR_PTR(-ENOENT); -} -EXPORT_SYMBOL(ab8500_gpadc_get); - -/** - * ab8500_gpadc_ad_to_voltage() - Convert a raw ADC value to a voltage - */ -int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, - int ad_value) -{ - int res; - - switch (channel) { - case MAIN_CHARGER_V: - /* For some reason we don't have calibrated data */ - if (!gpadc->cal_data[ADC_INPUT_VMAIN].gain) { - res = ADC_CH_CHG_V_MIN + (ADC_CH_CHG_V_MAX - - ADC_CH_CHG_V_MIN) * ad_value / - ADC_RESOLUTION; - break; - } - /* Here we can use the calibrated data */ - res = (int) (ad_value * gpadc->cal_data[ADC_INPUT_VMAIN].gain + - gpadc->cal_data[ADC_INPUT_VMAIN].offset) / CALIB_SCALE; - break; - - case XTAL_TEMP: - case BAT_CTRL: - case BTEMP_BALL: - case ACC_DETECT1: - case ADC_AUX1: - case ADC_AUX2: - /* For some reason we don't have calibrated data */ - if (!gpadc->cal_data[ADC_INPUT_BTEMP].gain) { - res = ADC_CH_BTEMP_MIN + (ADC_CH_BTEMP_MAX - - ADC_CH_BTEMP_MIN) * ad_value / - ADC_RESOLUTION; - break; - } - /* Here we can use the calibrated data */ - res = (int) (ad_value * gpadc->cal_data[ADC_INPUT_BTEMP].gain + - gpadc->cal_data[ADC_INPUT_BTEMP].offset) / CALIB_SCALE; - break; - - case MAIN_BAT_V: - case VBAT_TRUE_MEAS: - /* For some reason we don't have calibrated data */ - if (!gpadc->cal_data[ADC_INPUT_VBAT].gain) { - res = ADC_CH_VBAT_MIN + (ADC_CH_VBAT_MAX - - ADC_CH_VBAT_MIN) * ad_value / - ADC_RESOLUTION; - break; - } - /* Here we can use the calibrated data */ - res = (int) (ad_value * gpadc->cal_data[ADC_INPUT_VBAT].gain + - gpadc->cal_data[ADC_INPUT_VBAT].offset) / CALIB_SCALE; - break; - - case DIE_TEMP: - res = ADC_CH_DIETEMP_MIN + - (ADC_CH_DIETEMP_MAX - ADC_CH_DIETEMP_MIN) * ad_value / - ADC_RESOLUTION; - break; - - case ACC_DETECT2: - res = ADC_CH_ACCDET2_MIN + - (ADC_CH_ACCDET2_MAX - ADC_CH_ACCDET2_MIN) * ad_value / - ADC_RESOLUTION; - break; - - case VBUS_V: - res = ADC_CH_CHG_V_MIN + - (ADC_CH_CHG_V_MAX - ADC_CH_CHG_V_MIN) * ad_value / - ADC_RESOLUTION; - break; - - case MAIN_CHARGER_C: - case USB_CHARGER_C: - res = ADC_CH_CHG_I_MIN + - (ADC_CH_CHG_I_MAX - ADC_CH_CHG_I_MIN) * ad_value / - ADC_RESOLUTION; - break; - - case BK_BAT_V: - res = ADC_CH_BKBAT_MIN + - (ADC_CH_BKBAT_MAX - ADC_CH_BKBAT_MIN) * ad_value / - ADC_RESOLUTION; - break; - - case IBAT_VIRTUAL_CHANNEL: - /* For some reason we don't have calibrated data */ - if (!gpadc->cal_data[ADC_INPUT_IBAT].gain) { - res = ADC_CH_IBAT_MIN + (ADC_CH_IBAT_MAX - - ADC_CH_IBAT_MIN) * ad_value / - ADC_RESOLUTION; - break; - } - /* Here we can use the calibrated data */ - res = (int) (ad_value * gpadc->cal_data[ADC_INPUT_IBAT].gain + - gpadc->cal_data[ADC_INPUT_IBAT].offset) - >> CALIB_SHIFT_IBAT; - break; - - default: - dev_err(gpadc->dev, - "unknown channel, not possible to convert\n"); - res = -EINVAL; - break; - - } - return res; -} -EXPORT_SYMBOL(ab8500_gpadc_ad_to_voltage); - -/** - * ab8500_gpadc_sw_hw_convert() - gpadc conversion - * @channel: analog channel to be converted to digital data - * @avg_sample: number of ADC sample to average - * @trig_egde: selected ADC trig edge - * @trig_timer: selected ADC trigger delay timer - * @conv_type: selected conversion type (HW or SW conversion) - * - * This function converts the selected analog i/p to digital - * data. - */ -int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel, - u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) -{ - int ad_value; - int voltage; - - ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample, - trig_edge, trig_timer, conv_type); - - /* On failure retry a second time */ - if (ad_value < 0) - ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample, - trig_edge, trig_timer, conv_type); - if (ad_value < 0) { - dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n", - channel); - return ad_value; - } - - voltage = ab8500_gpadc_ad_to_voltage(gpadc, channel, ad_value); - if (voltage < 0) - dev_err(gpadc->dev, - "GPADC to voltage conversion failed ch: %d AD: 0x%x\n", - channel, ad_value); - - return voltage; -} -EXPORT_SYMBOL(ab8500_gpadc_sw_hw_convert); - -/** - * ab8500_gpadc_read_raw() - gpadc read - * @channel: analog channel to be read - * @avg_sample: number of ADC sample to average - * @trig_edge: selected trig edge - * @trig_timer: selected ADC trigger delay timer - * @conv_type: selected conversion type (HW or SW conversion) - * - * This function obtains the raw ADC value for an hardware conversion, - * this then needs to be converted by calling ab8500_gpadc_ad_to_voltage() - */ -int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, - u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) -{ - return ab8500_gpadc_double_read_raw(gpadc, channel, avg_sample, - trig_edge, trig_timer, conv_type, - NULL); -} - -int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, - u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type, - int *ibat) -{ - int ret; - int looplimit = 0; - unsigned long completion_timeout; - u8 val, low_data, high_data, low_data2, high_data2; - u8 val_reg1 = 0; - unsigned int delay_min = 0; - unsigned int delay_max = 0; - u8 data_low_addr, data_high_addr; - - if (!gpadc) - return -ENODEV; - - /* check if convertion is supported */ - if ((gpadc->irq_sw < 0) && (conv_type == ADC_SW)) - return -ENOTSUPP; - if ((gpadc->irq_hw < 0) && (conv_type == ADC_HW)) - return -ENOTSUPP; - - mutex_lock(&gpadc->ab8500_gpadc_lock); - /* Enable VTVout LDO this is required for GPADC */ - pm_runtime_get_sync(gpadc->dev); - - /* Check if ADC is not busy, lock and proceed */ - do { - ret = abx500_get_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_STAT_REG, &val); - if (ret < 0) - goto out; - if (!(val & GPADC_BUSY)) - break; - msleep(20); - } while (++looplimit < 10); - if (looplimit >= 10 && (val & GPADC_BUSY)) { - dev_err(gpadc->dev, "gpadc_conversion: GPADC busy"); - ret = -EINVAL; - goto out; - } - - /* Enable GPADC */ - val_reg1 |= EN_GPADC; - - /* Select the channel source and set average samples */ - switch (avg_sample) { - case SAMPLE_1: - val = channel | AVG_1; - break; - case SAMPLE_4: - val = channel | AVG_4; - break; - case SAMPLE_8: - val = channel | AVG_8; - break; - default: - val = channel | AVG_16; - break; - } - - if (conv_type == ADC_HW) { - ret = abx500_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL3_REG, val); - val_reg1 |= EN_TRIG_EDGE; - if (trig_edge) - val_reg1 |= EN_FALLING; - } else - ret = abx500_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL2_REG, val); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: set avg samples failed\n"); - goto out; - } - - /* - * Enable ADC, buffering, select rising edge and enable ADC path - * charging current sense if it needed, ABB 3.0 needs some special - * treatment too. - */ - switch (channel) { - case MAIN_CHARGER_C: - case USB_CHARGER_C: - val_reg1 |= EN_BUF | EN_ICHAR; - break; - case BTEMP_BALL: - if (!is_ab8500_2p0_or_earlier(gpadc->parent)) { - val_reg1 |= EN_BUF | BTEMP_PULL_UP; - /* - * Delay might be needed for ABB8500 cut 3.0, if not, - * remove when hardware will be availible - */ - delay_min = 1000; /* Delay in micro seconds */ - delay_max = 10000; /* large range optimises sleepmode */ - break; - } - /* Intentional fallthrough */ - default: - val_reg1 |= EN_BUF; - break; - } - - /* Write configuration to register */ - ret = abx500_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, val_reg1); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: set Control register failed\n"); - goto out; - } - - if (delay_min != 0) - usleep_range(delay_min, delay_max); - - if (conv_type == ADC_HW) { - /* Set trigger delay timer */ - ret = abx500_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_AUTO_TIMER_REG, trig_timer); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: trig timer failed\n"); - goto out; - } - completion_timeout = 2 * HZ; - data_low_addr = AB8500_GPADC_AUTODATAL_REG; - data_high_addr = AB8500_GPADC_AUTODATAH_REG; - } else { - /* Start SW conversion */ - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, - ADC_SW_CONV, ADC_SW_CONV); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: start s/w conv failed\n"); - goto out; - } - completion_timeout = msecs_to_jiffies(CONVERSION_TIME); - data_low_addr = AB8500_GPADC_MANDATAL_REG; - data_high_addr = AB8500_GPADC_MANDATAH_REG; - } - - /* wait for completion of conversion */ - if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, - completion_timeout)) { - dev_err(gpadc->dev, - "timeout didn't receive GPADC conv interrupt\n"); - ret = -EINVAL; - goto out; - } - - /* Read the converted RAW data */ - ret = abx500_get_register_interruptible(gpadc->dev, - AB8500_GPADC, data_low_addr, &low_data); - if (ret < 0) { - dev_err(gpadc->dev, "gpadc_conversion: read low data failed\n"); - goto out; - } - - ret = abx500_get_register_interruptible(gpadc->dev, - AB8500_GPADC, data_high_addr, &high_data); - if (ret < 0) { - dev_err(gpadc->dev, "gpadc_conversion: read high data failed\n"); - goto out; - } - - /* Check if double convertion is required */ - if ((channel == BAT_CTRL_AND_IBAT) || - (channel == VBAT_MEAS_AND_IBAT) || - (channel == VBAT_TRUE_MEAS_AND_IBAT) || - (channel == BAT_TEMP_AND_IBAT)) { - - if (conv_type == ADC_HW) { - /* not supported */ - ret = -ENOTSUPP; - dev_err(gpadc->dev, - "gpadc_conversion: only SW double conversion supported\n"); - goto out; - } else { - /* Read the converted RAW data 2 */ - ret = abx500_get_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8540_GPADC_MANDATA2L_REG, - &low_data2); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: read sw low data 2 failed\n"); - goto out; - } - - ret = abx500_get_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8540_GPADC_MANDATA2H_REG, - &high_data2); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: read sw high data 2 failed\n"); - goto out; - } - if (ibat != NULL) { - *ibat = (high_data2 << 8) | low_data2; - } else { - dev_warn(gpadc->dev, - "gpadc_conversion: ibat not stored\n"); - } - - } - } - - /* Disable GPADC */ - ret = abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_CTRL1_REG, DIS_GPADC); - if (ret < 0) { - dev_err(gpadc->dev, "gpadc_conversion: disable gpadc failed\n"); - goto out; - } - - /* Disable VTVout LDO this is required for GPADC */ - pm_runtime_mark_last_busy(gpadc->dev); - pm_runtime_put_autosuspend(gpadc->dev); - - mutex_unlock(&gpadc->ab8500_gpadc_lock); - - return (high_data << 8) | low_data; - -out: - /* - * It has shown to be needed to turn off the GPADC if an error occurs, - * otherwise we might have problem when waiting for the busy bit in the - * GPADC status register to go low. In V1.1 there wait_for_completion - * seems to timeout when waiting for an interrupt.. Not seen in V2.0 - */ - (void) abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_CTRL1_REG, DIS_GPADC); - pm_runtime_put(gpadc->dev); - mutex_unlock(&gpadc->ab8500_gpadc_lock); - dev_err(gpadc->dev, - "gpadc_conversion: Failed to AD convert channel %d\n", channel); - return ret; -} -EXPORT_SYMBOL(ab8500_gpadc_read_raw); - -/** - * ab8500_bm_gpadcconvend_handler() - isr for gpadc conversion completion - * @irq: irq number - * @data: pointer to the data passed during request irq - * - * This is a interrupt service routine for gpadc conversion completion. - * Notifies the gpadc completion is completed and the converted raw value - * can be read from the registers. - * Returns IRQ status(IRQ_HANDLED) - */ -static irqreturn_t ab8500_bm_gpadcconvend_handler(int irq, void *_gpadc) -{ - struct ab8500_gpadc *gpadc = _gpadc; - - complete(&gpadc->ab8500_gpadc_complete); - - return IRQ_HANDLED; -} - -static int otp_cal_regs[] = { - AB8500_GPADC_CAL_1, - AB8500_GPADC_CAL_2, - AB8500_GPADC_CAL_3, - AB8500_GPADC_CAL_4, - AB8500_GPADC_CAL_5, - AB8500_GPADC_CAL_6, - AB8500_GPADC_CAL_7, -}; - -static int otp4_cal_regs[] = { - AB8540_GPADC_OTP4_REG_7, - AB8540_GPADC_OTP4_REG_6, - AB8540_GPADC_OTP4_REG_5, -}; - -static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) -{ - int i; - int ret[ARRAY_SIZE(otp_cal_regs)]; - u8 gpadc_cal[ARRAY_SIZE(otp_cal_regs)]; - int ret_otp4[ARRAY_SIZE(otp4_cal_regs)]; - u8 gpadc_otp4[ARRAY_SIZE(otp4_cal_regs)]; - int vmain_high, vmain_low; - int btemp_high, btemp_low; - int vbat_high, vbat_low; - int ibat_high, ibat_low; - s64 V_gain, V_offset, V2A_gain, V2A_offset; - struct ab8500 *ab8500; - - ab8500 = gpadc->parent; - - /* First we read all OTP registers and store the error code */ - for (i = 0; i < ARRAY_SIZE(otp_cal_regs); i++) { - ret[i] = abx500_get_register_interruptible(gpadc->dev, - AB8500_OTP_EMUL, otp_cal_regs[i], &gpadc_cal[i]); - if (ret[i] < 0) - dev_err(gpadc->dev, "%s: read otp reg 0x%02x failed\n", - __func__, otp_cal_regs[i]); - } - - /* - * The ADC calibration data is stored in OTP registers. - * The layout of the calibration data is outlined below and a more - * detailed description can be found in UM0836 - * - * vm_h/l = vmain_high/low - * bt_h/l = btemp_high/low - * vb_h/l = vbat_high/low - * - * Data bits 8500/9540: - * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | | vm_h9 | vm_h8 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | | vm_h7 | vm_h6 | vm_h5 | vm_h4 | vm_h3 | vm_h2 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vm_h1 | vm_h0 | vm_l4 | vm_l3 | vm_l2 | vm_l1 | vm_l0 | bt_h9 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | bt_h8 | bt_h7 | bt_h6 | bt_h5 | bt_h4 | bt_h3 | bt_h2 | bt_h1 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | bt_h0 | bt_l4 | bt_l3 | bt_l2 | bt_l1 | bt_l0 | vb_h9 | vb_h8 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vb_h7 | vb_h6 | vb_h5 | vb_h4 | vb_h3 | vb_h2 | vb_h1 | vb_h0 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vb_l5 | vb_l4 | vb_l3 | vb_l2 | vb_l1 | vb_l0 | - * |.......|.......|.......|.......|.......|.......|.......|....... - * - * Data bits 8540: - * OTP2 - * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vm_h9 | vm_h8 | vm_h7 | vm_h6 | vm_h5 | vm_h4 | vm_h3 | vm_h2 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vm_h1 | vm_h0 | vm_l4 | vm_l3 | vm_l2 | vm_l1 | vm_l0 | bt_h9 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | bt_h8 | bt_h7 | bt_h6 | bt_h5 | bt_h4 | bt_h3 | bt_h2 | bt_h1 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | bt_h0 | bt_l4 | bt_l3 | bt_l2 | bt_l1 | bt_l0 | vb_h9 | vb_h8 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vb_h7 | vb_h6 | vb_h5 | vb_h4 | vb_h3 | vb_h2 | vb_h1 | vb_h0 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | vb_l5 | vb_l4 | vb_l3 | vb_l2 | vb_l1 | vb_l0 | - * |.......|.......|.......|.......|.......|.......|.......|....... - * - * Data bits 8540: - * OTP4 - * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | | ib_h9 | ib_h8 | ib_h7 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | ib_h6 | ib_h5 | ib_h4 | ib_h3 | ib_h2 | ib_h1 | ib_h0 | ib_l5 - * |.......|.......|.......|.......|.......|.......|.......|....... - * | ib_l4 | ib_l3 | ib_l2 | ib_l1 | ib_l0 | - * - * - * Ideal output ADC codes corresponding to injected input voltages - * during manufacturing is: - * - * vmain_high: Vin = 19500mV / ADC ideal code = 997 - * vmain_low: Vin = 315mV / ADC ideal code = 16 - * btemp_high: Vin = 1300mV / ADC ideal code = 985 - * btemp_low: Vin = 21mV / ADC ideal code = 16 - * vbat_high: Vin = 4700mV / ADC ideal code = 982 - * vbat_low: Vin = 2380mV / ADC ideal code = 33 - */ - - if (is_ab8540(ab8500)) { - /* Calculate gain and offset for VMAIN if all reads succeeded*/ - if (!(ret[1] < 0 || ret[2] < 0)) { - vmain_high = (((gpadc_cal[1] & 0xFF) << 2) | - ((gpadc_cal[2] & 0xC0) >> 6)); - vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); - - gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = - (u16)vmain_high; - gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = - (u16)vmain_low; - - gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * - (19500 - 315) / (vmain_high - vmain_low); - gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * - 19500 - (CALIB_SCALE * (19500 - 315) / - (vmain_high - vmain_low)) * vmain_high; - } else { - gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; - } - - /* Read IBAT calibration Data */ - for (i = 0; i < ARRAY_SIZE(otp4_cal_regs); i++) { - ret_otp4[i] = abx500_get_register_interruptible( - gpadc->dev, AB8500_OTP_EMUL, - otp4_cal_regs[i], &gpadc_otp4[i]); - if (ret_otp4[i] < 0) - dev_err(gpadc->dev, - "%s: read otp4 reg 0x%02x failed\n", - __func__, otp4_cal_regs[i]); - } - - /* Calculate gain and offset for IBAT if all reads succeeded */ - if (!(ret_otp4[0] < 0 || ret_otp4[1] < 0 || ret_otp4[2] < 0)) { - ibat_high = (((gpadc_otp4[0] & 0x07) << 7) | - ((gpadc_otp4[1] & 0xFE) >> 1)); - ibat_low = (((gpadc_otp4[1] & 0x01) << 5) | - ((gpadc_otp4[2] & 0xF8) >> 3)); - - gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi = - (u16)ibat_high; - gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo = - (u16)ibat_low; - - V_gain = ((IBAT_VDROP_H - IBAT_VDROP_L) - << CALIB_SHIFT_IBAT) / (ibat_high - ibat_low); - - V_offset = (IBAT_VDROP_H << CALIB_SHIFT_IBAT) - - (((IBAT_VDROP_H - IBAT_VDROP_L) << - CALIB_SHIFT_IBAT) / (ibat_high - ibat_low)) - * ibat_high; - /* - * Result obtained is in mV (at a scale factor), - * we need to calculate gain and offset to get mA - */ - V2A_gain = (ADC_CH_IBAT_MAX - ADC_CH_IBAT_MIN)/ - (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V); - V2A_offset = ((ADC_CH_IBAT_MAX_V * ADC_CH_IBAT_MIN - - ADC_CH_IBAT_MAX * ADC_CH_IBAT_MIN_V) - << CALIB_SHIFT_IBAT) - / (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V); - - gpadc->cal_data[ADC_INPUT_IBAT].gain = - V_gain * V2A_gain; - gpadc->cal_data[ADC_INPUT_IBAT].offset = - V_offset * V2A_gain + V2A_offset; - } else { - gpadc->cal_data[ADC_INPUT_IBAT].gain = 0; - } - - dev_dbg(gpadc->dev, "IBAT gain %llu offset %llu\n", - gpadc->cal_data[ADC_INPUT_IBAT].gain, - gpadc->cal_data[ADC_INPUT_IBAT].offset); - } else { - /* Calculate gain and offset for VMAIN if all reads succeeded */ - if (!(ret[0] < 0 || ret[1] < 0 || ret[2] < 0)) { - vmain_high = (((gpadc_cal[0] & 0x03) << 8) | - ((gpadc_cal[1] & 0x3F) << 2) | - ((gpadc_cal[2] & 0xC0) >> 6)); - vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); - - gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = - (u16)vmain_high; - gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = - (u16)vmain_low; - - gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * - (19500 - 315) / (vmain_high - vmain_low); - - gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * - 19500 - (CALIB_SCALE * (19500 - 315) / - (vmain_high - vmain_low)) * vmain_high; - } else { - gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; - } - } - - /* Calculate gain and offset for BTEMP if all reads succeeded */ - if (!(ret[2] < 0 || ret[3] < 0 || ret[4] < 0)) { - btemp_high = (((gpadc_cal[2] & 0x01) << 9) | - (gpadc_cal[3] << 1) | ((gpadc_cal[4] & 0x80) >> 7)); - btemp_low = ((gpadc_cal[4] & 0x7C) >> 2); - - gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi = (u16)btemp_high; - gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo = (u16)btemp_low; - - gpadc->cal_data[ADC_INPUT_BTEMP].gain = - CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low); - gpadc->cal_data[ADC_INPUT_BTEMP].offset = CALIB_SCALE * 1300 - - (CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low)) - * btemp_high; - } else { - gpadc->cal_data[ADC_INPUT_BTEMP].gain = 0; - } - - /* Calculate gain and offset for VBAT if all reads succeeded */ - if (!(ret[4] < 0 || ret[5] < 0 || ret[6] < 0)) { - vbat_high = (((gpadc_cal[4] & 0x03) << 8) | gpadc_cal[5]); - vbat_low = ((gpadc_cal[6] & 0xFC) >> 2); - - gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi = (u16)vbat_high; - gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo = (u16)vbat_low; - - gpadc->cal_data[ADC_INPUT_VBAT].gain = CALIB_SCALE * - (4700 - 2380) / (vbat_high - vbat_low); - gpadc->cal_data[ADC_INPUT_VBAT].offset = CALIB_SCALE * 4700 - - (CALIB_SCALE * (4700 - 2380) / - (vbat_high - vbat_low)) * vbat_high; - } else { - gpadc->cal_data[ADC_INPUT_VBAT].gain = 0; - } - - dev_dbg(gpadc->dev, "VMAIN gain %llu offset %llu\n", - gpadc->cal_data[ADC_INPUT_VMAIN].gain, - gpadc->cal_data[ADC_INPUT_VMAIN].offset); - - dev_dbg(gpadc->dev, "BTEMP gain %llu offset %llu\n", - gpadc->cal_data[ADC_INPUT_BTEMP].gain, - gpadc->cal_data[ADC_INPUT_BTEMP].offset); - - dev_dbg(gpadc->dev, "VBAT gain %llu offset %llu\n", - gpadc->cal_data[ADC_INPUT_VBAT].gain, - gpadc->cal_data[ADC_INPUT_VBAT].offset); -} - -#ifdef CONFIG_PM -static int ab8500_gpadc_runtime_suspend(struct device *dev) -{ - struct ab8500_gpadc *gpadc = dev_get_drvdata(dev); - - regulator_disable(gpadc->regu); - return 0; -} - -static int ab8500_gpadc_runtime_resume(struct device *dev) -{ - struct ab8500_gpadc *gpadc = dev_get_drvdata(dev); - int ret; - - ret = regulator_enable(gpadc->regu); - if (ret) - dev_err(dev, "Failed to enable vtvout LDO: %d\n", ret); - return ret; -} -#endif - -#ifdef CONFIG_PM_SLEEP -static int ab8500_gpadc_suspend(struct device *dev) -{ - struct ab8500_gpadc *gpadc = dev_get_drvdata(dev); - - mutex_lock(&gpadc->ab8500_gpadc_lock); - - pm_runtime_get_sync(dev); - - regulator_disable(gpadc->regu); - return 0; -} - -static int ab8500_gpadc_resume(struct device *dev) -{ - struct ab8500_gpadc *gpadc = dev_get_drvdata(dev); - int ret; - - ret = regulator_enable(gpadc->regu); - if (ret) - dev_err(dev, "Failed to enable vtvout LDO: %d\n", ret); - - pm_runtime_mark_last_busy(gpadc->dev); - pm_runtime_put_autosuspend(gpadc->dev); - - mutex_unlock(&gpadc->ab8500_gpadc_lock); - return ret; -} -#endif - -static int ab8500_gpadc_probe(struct platform_device *pdev) -{ - int ret = 0; - struct ab8500_gpadc *gpadc; - - gpadc = devm_kzalloc(&pdev->dev, - sizeof(struct ab8500_gpadc), GFP_KERNEL); - if (!gpadc) - return -ENOMEM; - - gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END"); - if (gpadc->irq_sw < 0) - dev_err(gpadc->dev, "failed to get platform sw_conv_end irq\n"); - - gpadc->irq_hw = platform_get_irq_byname(pdev, "HW_CONV_END"); - if (gpadc->irq_hw < 0) - dev_err(gpadc->dev, "failed to get platform hw_conv_end irq\n"); - - gpadc->dev = &pdev->dev; - gpadc->parent = dev_get_drvdata(pdev->dev.parent); - mutex_init(&gpadc->ab8500_gpadc_lock); - - /* Initialize completion used to notify completion of conversion */ - init_completion(&gpadc->ab8500_gpadc_complete); - - /* Register interrupts */ - if (gpadc->irq_sw >= 0) { - ret = request_threaded_irq(gpadc->irq_sw, NULL, - ab8500_bm_gpadcconvend_handler, - IRQF_NO_SUSPEND | IRQF_SHARED | IRQF_ONESHOT, - "ab8500-gpadc-sw", - gpadc); - if (ret < 0) { - dev_err(gpadc->dev, - "Failed to register interrupt irq: %d\n", - gpadc->irq_sw); - goto fail; - } - } - - if (gpadc->irq_hw >= 0) { - ret = request_threaded_irq(gpadc->irq_hw, NULL, - ab8500_bm_gpadcconvend_handler, - IRQF_NO_SUSPEND | IRQF_SHARED | IRQF_ONESHOT, - "ab8500-gpadc-hw", - gpadc); - if (ret < 0) { - dev_err(gpadc->dev, - "Failed to register interrupt irq: %d\n", - gpadc->irq_hw); - goto fail_irq; - } - } - - /* VTVout LDO used to power up ab8500-GPADC */ - gpadc->regu = devm_regulator_get(&pdev->dev, "vddadc"); - if (IS_ERR(gpadc->regu)) { - ret = PTR_ERR(gpadc->regu); - dev_err(gpadc->dev, "failed to get vtvout LDO\n"); - goto fail_irq; - } - - platform_set_drvdata(pdev, gpadc); - - ret = regulator_enable(gpadc->regu); - if (ret) { - dev_err(gpadc->dev, "Failed to enable vtvout LDO: %d\n", ret); - goto fail_enable; - } - - pm_runtime_set_autosuspend_delay(gpadc->dev, GPADC_AUDOSUSPEND_DELAY); - pm_runtime_use_autosuspend(gpadc->dev); - pm_runtime_set_active(gpadc->dev); - pm_runtime_enable(gpadc->dev); - - ab8500_gpadc_read_calibration_data(gpadc); - list_add_tail(&gpadc->node, &ab8500_gpadc_list); - dev_dbg(gpadc->dev, "probe success\n"); - - return 0; - -fail_enable: -fail_irq: - free_irq(gpadc->irq_sw, gpadc); - free_irq(gpadc->irq_hw, gpadc); -fail: - return ret; -} - -static int ab8500_gpadc_remove(struct platform_device *pdev) -{ - struct ab8500_gpadc *gpadc = platform_get_drvdata(pdev); - - /* remove this gpadc entry from the list */ - list_del(&gpadc->node); - /* remove interrupt - completion of Sw ADC conversion */ - if (gpadc->irq_sw >= 0) - free_irq(gpadc->irq_sw, gpadc); - if (gpadc->irq_hw >= 0) - free_irq(gpadc->irq_hw, gpadc); - - pm_runtime_get_sync(gpadc->dev); - pm_runtime_disable(gpadc->dev); - - regulator_disable(gpadc->regu); - - pm_runtime_set_suspended(gpadc->dev); - - pm_runtime_put_noidle(gpadc->dev); - - return 0; -} - -static const struct dev_pm_ops ab8500_gpadc_pm_ops = { - SET_RUNTIME_PM_OPS(ab8500_gpadc_runtime_suspend, - ab8500_gpadc_runtime_resume, - NULL) - SET_SYSTEM_SLEEP_PM_OPS(ab8500_gpadc_suspend, - ab8500_gpadc_resume) - -}; - -static struct platform_driver ab8500_gpadc_driver = { - .probe = ab8500_gpadc_probe, - .remove = ab8500_gpadc_remove, - .driver = { - .name = "ab8500-gpadc", - .pm = &ab8500_gpadc_pm_ops, - }, -}; - -static int __init ab8500_gpadc_init(void) -{ - return platform_driver_register(&ab8500_gpadc_driver); -} -subsys_initcall_sync(ab8500_gpadc_init); - -/** - * ab8540_gpadc_get_otp() - returns OTP values - * - */ -void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, - u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, - u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h) -{ - *vmain_l = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo; - *vmain_h = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi; - *btemp_l = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo; - *btemp_h = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi; - *vbat_l = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo; - *vbat_h = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi; - *ibat_l = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo; - *ibat_h = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi; -} diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h deleted file mode 100644 index 836c944abe2e..000000000000 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ /dev/null @@ -1,75 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2010 ST-Ericsson SA - * - * Author: Arun R Murthy - * Author: Daniel Willerud - * Author: M'boumba Cedric Madianga - */ - -#ifndef _AB8500_GPADC_H -#define _AB8500_GPADC_H - -/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2 - * and ADCHwSel[4:0] in GPADCCtrl3 ) */ -#define BAT_CTRL 0x01 -#define BTEMP_BALL 0x02 -#define MAIN_CHARGER_V 0x03 -#define ACC_DETECT1 0x04 -#define ACC_DETECT2 0x05 -#define ADC_AUX1 0x06 -#define ADC_AUX2 0x07 -#define MAIN_BAT_V 0x08 -#define VBUS_V 0x09 -#define MAIN_CHARGER_C 0x0A -#define USB_CHARGER_C 0x0B -#define BK_BAT_V 0x0C -#define DIE_TEMP 0x0D -#define USB_ID 0x0E -#define XTAL_TEMP 0x12 -#define VBAT_TRUE_MEAS 0x13 -#define BAT_CTRL_AND_IBAT 0x1C -#define VBAT_MEAS_AND_IBAT 0x1D -#define VBAT_TRUE_MEAS_AND_IBAT 0x1E -#define BAT_TEMP_AND_IBAT 0x1F - -/* Virtual channel used only for ibat convertion to ampere - * Battery current conversion (ibat) cannot be requested as a single conversion - * but it is always in combination with other input requests - */ -#define IBAT_VIRTUAL_CHANNEL 0xFF - -#define SAMPLE_1 1 -#define SAMPLE_4 4 -#define SAMPLE_8 8 -#define SAMPLE_16 16 -#define RISING_EDGE 0 -#define FALLING_EDGE 1 - -/* Arbitrary ADC conversion type constants */ -#define ADC_SW 0 -#define ADC_HW 1 - -struct ab8500_gpadc; - -struct ab8500_gpadc *ab8500_gpadc_get(char *name); -int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel, - u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); -static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) -{ - return ab8500_gpadc_sw_hw_convert(gpadc, channel, - SAMPLE_16, 0, 0, ADC_SW); -} - -int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, - u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); -int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, - u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type, - int *ibat); -int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, - u8 channel, int ad_value); -void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, - u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, - u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h); - -#endif /* _AB8500_GPADC_H */ -- 2.21.0