From patchwork Fri Dec 20 11:43:27 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 3387851 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C767A9F37A for ; Fri, 20 Dec 2013 11:44:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 21AE7206E3 for ; Fri, 20 Dec 2013 11:44:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A2C8206E4 for ; Fri, 20 Dec 2013 11:44:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756556Ab3LTLnp (ORCPT ); Fri, 20 Dec 2013 06:43:45 -0500 Received: from metis.ext.pengutronix.de ([92.198.50.35]:42999 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755957Ab3LTLnl (ORCPT ); Fri, 20 Dec 2013 06:43:41 -0500 Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:21e:67ff:fe11:9c5c]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1VtyUR-0001ti-8J; Fri, 20 Dec 2013 12:43:35 +0100 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.82) (envelope-from ) id 1VtyUO-00037x-JK; Fri, 20 Dec 2013 12:43:32 +0100 From: Markus Pargmann To: Mark Brown Cc: Liam Girdwood , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, Markus Pargmann Subject: [PATCH v2 1/2] regulator: tps65910: Add backup battery regulator Date: Fri, 20 Dec 2013 12:43:27 +0100 Message-Id: <1387539808-24910-2-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 1.8.5.1 In-Reply-To: <1387539808-24910-1-git-send-email-mpa@pengutronix.de> References: <1387539808-24910-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-omap@vger.kernel.org Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP tps65910 has a backup battery charger with a configurable voltage. This patch adds a regulator for the backup battery. Signed-off-by: Markus Pargmann --- Documentation/devicetree/bindings/mfd/tps65910.txt | 4 +- drivers/regulator/tps65910-regulator.c | 56 +++++++++++++++++++++- include/linux/mfd/tps65910.h | 3 +- 3 files changed, 59 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt index 2e33048..b4bd98a 100644 --- a/Documentation/devicetree/bindings/mfd/tps65910.txt +++ b/Documentation/devicetree/bindings/mfd/tps65910.txt @@ -21,7 +21,7 @@ Required properties: The valid regulator-compatible values are: tps65910: vrtc, vio, vdd1, vdd2, vdd3, vdig1, vdig2, vpll, vdac, vaux1, - vaux2, vaux33, vmmc + vaux2, vaux33, vmmc, vbb tps65911: vrtc, vio, vdd1, vdd3, vddctrl, ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8 @@ -38,7 +38,7 @@ Required properties: vcc4-supply: VAUX1 and VAUX2 input. vcc5-supply: VPLL and VDAC input. vcc6-supply: VDIG1 and VDIG2 input. - vcc7-supply: VRTC input. + vcc7-supply: VRTC and VBB input. vccio-supply: VIO input. tps65911: vcc1-supply: VDD1 input. diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index a00132e..979ea0a 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -88,6 +88,11 @@ static const unsigned int VMMC_VSEL_table[] = { 1800000, 2800000, 3000000, 3300000, }; +/* supported BBCH voltages in microvolts */ +static const unsigned int VBB_VSEL_table[] = { + 3000000, 2520000, 3150000, 5000000, +}; + struct tps_info { const char *name; const char *vin_name; @@ -183,6 +188,12 @@ static struct tps_info tps65910_regs[] = { .voltage_table = VMMC_VSEL_table, .enable_time_us = 100, }, + { + .name = "vbb", + .vin_name = "vcc7", + .n_voltages = ARRAY_SIZE(VBB_VSEL_table), + .voltage_table = VBB_VSEL_table, + }, }; static struct tps_info tps65911_regs[] = { @@ -339,6 +350,8 @@ static int tps65910_get_ctrl_register(int id) return TPS65910_VAUX33; case TPS65910_REG_VMMC: return TPS65910_VMMC; + case TPS65910_REG_VBB: + return TPS65910_BBCH; default: return -EINVAL; } @@ -528,6 +541,10 @@ static int tps65910_get_voltage_sel(struct regulator_dev *dev) value &= LDO_SEL_MASK; value >>= LDO_SEL_SHIFT; break; + case TPS65910_REG_VBB: + value &= BBCH_BBSEL_MASK; + value >>= BBCH_BBSEL_SHIFT; + break; default: return -EINVAL; } @@ -638,6 +655,9 @@ static int tps65910_set_voltage_sel(struct regulator_dev *dev, case TPS65910_REG_VMMC: return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK, selector << LDO_SEL_SHIFT); + case TPS65910_REG_VBB: + return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK, + selector << BBCH_BBSEL_SHIFT); } return -EINVAL; @@ -669,6 +689,9 @@ static int tps65911_set_voltage_sel(struct regulator_dev *dev, case TPS65910_REG_VIO: return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK, selector << LDO_SEL_SHIFT); + case TPS65910_REG_VBB: + return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK, + selector << BBCH_BBSEL_SHIFT); } return -EINVAL; @@ -762,6 +785,18 @@ static struct regulator_ops tps65910_ops_vdd3 = { .map_voltage = regulator_map_voltage_ascend, }; +static struct regulator_ops tps65910_ops_vbb = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .set_mode = tps65910_set_mode, + .get_mode = tps65910_get_mode, + .get_voltage_sel = tps65910_get_voltage_sel, + .set_voltage_sel = tps65910_set_voltage_sel, + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, +}; + static struct regulator_ops tps65910_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, @@ -944,6 +979,7 @@ static struct of_regulator_match tps65910_matches[] = { { .name = "vaux2", .driver_data = (void *) &tps65910_regs[10] }, { .name = "vaux33", .driver_data = (void *) &tps65910_regs[11] }, { .name = "vmmc", .driver_data = (void *) &tps65910_regs[12] }, + { .name = "vbb", .driver_data = (void *) &tps65910_regs[13] }, }; static struct of_regulator_match tps65911_matches[] = { @@ -1145,6 +1181,10 @@ static int tps65910_probe(struct platform_device *pdev) pmic->desc[i].ops = &tps65910_ops_dcdc; pmic->desc[i].ramp_delay = 5000; } + } else if (i == TPS65910_REG_VBB && + tps65910_chip_id(tps65910) == TPS65910) { + pmic->desc[i].ops = &tps65910_ops_vbb; + pmic->desc[i].volt_table = info->voltage_table; } else { if (tps65910_chip_id(tps65910) == TPS65910) { pmic->desc[i].ops = &tps65910_ops; @@ -1167,7 +1207,21 @@ static int tps65910_probe(struct platform_device *pdev) pmic->desc[i].type = REGULATOR_VOLTAGE; pmic->desc[i].owner = THIS_MODULE; pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i); - pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED; + + switch (i) { + case TPS65910_REG_VBB: + if (tps65910_chip_id(tps65910) == TPS65910) + pmic->desc[i].enable_mask = BBCH_BBCHEN_MASK; + else + pmic->desc[i].enable_mask = + TPS65910_SUPPLY_STATE_ENABLED; + break; + + default: + pmic->desc[i].enable_mask = + TPS65910_SUPPLY_STATE_ENABLED; + break; + } config.dev = tps65910->dev; config.init_data = reg_data; diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h index 20e433e..1adeee1 100644 --- a/include/linux/mfd/tps65910.h +++ b/include/linux/mfd/tps65910.h @@ -833,6 +833,7 @@ #define TPS65910_REG_VAUX2 10 #define TPS65910_REG_VAUX33 11 #define TPS65910_REG_VMMC 12 +#define TPS65910_REG_VBB 13 #define TPS65911_REG_VDDCTRL 4 #define TPS65911_REG_LDO1 5 @@ -845,7 +846,7 @@ #define TPS65911_REG_LDO8 12 /* Max number of TPS65910/11 regulators */ -#define TPS65910_NUM_REGS 13 +#define TPS65910_NUM_REGS 14 /* External sleep controls through EN1/EN2/EN3/SLEEP inputs */ #define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 0x1