From patchwork Wed Jul 15 06:40:33 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Andersson X-Patchwork-Id: 6792721 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EF9B19F2E8 for ; Wed, 15 Jul 2015 06:41:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9B0F7205EA for ; Wed, 15 Jul 2015 06:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C2A6203C2 for ; Wed, 15 Jul 2015 06:41:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753881AbbGOGkn (ORCPT ); Wed, 15 Jul 2015 02:40:43 -0400 Received: from seldrel01.sonyericsson.com ([37.139.156.2]:9400 "EHLO seldrel01.sonyericsson.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752753AbbGOGkl (ORCPT ); Wed, 15 Jul 2015 02:40:41 -0400 From: Bjorn Andersson To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Linus Walleij , "Ivan T. Ivanov" CC: , , , Subject: [PATCH v2 5/8] pinctrl: qcom: spmi-mpp: Add support for setting analog output level Date: Tue, 14 Jul 2015 23:40:33 -0700 Message-ID: <1436942435-25611-1-git-send-email-bjorn.andersson@sonymobile.com> X-Mailer: git-send-email 1.8.2.2 In-Reply-To: <1434610052-602-6-git-send-email-bjorn.andersson@sonymobile.com> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-8.3 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 When the MPP is configured for analog output the output level is selected by the AOUT_CTL register, this patch makes it possible to control this. Signed-off-by: Bjorn Andersson --- Changes since v1: - Assign aout_level in pmic_mpp_populate() .../devicetree/bindings/pinctrl/qcom,pmic-mpp.txt | 7 +++++++ drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 23 ++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt index d29fb96a57d3..0e4d4e62e220 100644 --- a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt +++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt @@ -127,6 +127,13 @@ to specify in a pin configuration subnode: Definition: Selects the power source for the specified pins. Valid power sources are defined in +- qcom,analog-level: + Usage: optional + Value type: + Definition: Selects the source for analog output. Valued values are + defined in + PMIC_MPP_AOUT_LVL_* + - qcom,analog-mode: Usage: optional Value type: diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c index 9dde023640ba..e52a72348a67 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c @@ -61,6 +61,7 @@ #define PMIC_MPP_REG_DIG_PULL_CTL 0x42 #define PMIC_MPP_REG_DIG_IN_CTL 0x43 #define PMIC_MPP_REG_EN_CTL 0x46 +#define PMIC_MPP_REG_AOUT_CTL 0x48 #define PMIC_MPP_REG_AIN_CTL 0x4a #define PMIC_MPP_REG_SINK_CTL 0x4c @@ -100,6 +101,7 @@ #define PMIC_MPP_CONF_AMUX_ROUTE (PIN_CONFIG_END + 1) #define PMIC_MPP_CONF_ANALOG_MODE (PIN_CONFIG_END + 2) #define PMIC_MPP_CONF_SINK_MODE (PIN_CONFIG_END + 3) +#define PMIC_MPP_CONF_ANALOG_LEVEL (PIN_CONFIG_END + 4) /** * struct pmic_mpp_pad - keep current MPP settings @@ -115,6 +117,7 @@ * @num_sources: Number of power-sources supported by this MPP. * @power_source: Current power-source used. * @amux_input: Set the source for analog input. + * @aout_level: Analog output level * @pullup: Pullup resistor value. Valid in Bidirectional mode only. * @function: See pmic_mpp_functions[]. * @drive_strength: Amount of current in sink mode @@ -131,6 +134,7 @@ struct pmic_mpp_pad { unsigned int num_sources; unsigned int power_source; unsigned int amux_input; + unsigned int aout_level; unsigned int pullup; unsigned int function; unsigned int drive_strength; @@ -145,6 +149,7 @@ struct pmic_mpp_state { static const struct pinconf_generic_params pmic_mpp_bindings[] = { {"qcom,amux-route", PMIC_MPP_CONF_AMUX_ROUTE, 0}, + {"qcom,analog-level", PMIC_MPP_CONF_ANALOG_LEVEL, 0}, {"qcom,analog-mode", PMIC_MPP_CONF_ANALOG_MODE, 0}, {"qcom,sink-mode", PMIC_MPP_CONF_SINK_MODE, 0}, }; @@ -152,6 +157,7 @@ static const struct pinconf_generic_params pmic_mpp_bindings[] = { #ifdef CONFIG_DEBUG_FS static const struct pin_config_item pmic_conf_items[] = { PCONFDUMP(PMIC_MPP_CONF_AMUX_ROUTE, "analog mux", NULL, true), + PCONFDUMP(PMIC_MPP_CONF_ANALOG_LEVEL, "analog level", NULL, true), PCONFDUMP(PMIC_MPP_CONF_ANALOG_MODE, "analog output", NULL, false), PCONFDUMP(PMIC_MPP_CONF_SINK_MODE, "sink mode", NULL, false), }; @@ -358,6 +364,9 @@ static int pmic_mpp_config_get(struct pinctrl_dev *pctldev, case PIN_CONFIG_DRIVE_STRENGTH: arg = pad->drive_strength; break; + case PMIC_MPP_CONF_ANALOG_LEVEL: + arg = pad->aout_level; + break; case PMIC_MPP_CONF_ANALOG_MODE: arg = pad->analog_mode; break; @@ -433,6 +442,9 @@ static int pmic_mpp_config_set(struct pinctrl_dev *pctldev, unsigned int pin, return -EINVAL; pad->amux_input = arg; break; + case PMIC_MPP_CONF_ANALOG_LEVEL: + pad->aout_level = arg; + break; case PMIC_MPP_CONF_ANALOG_MODE: pad->analog_mode = !!arg; break; @@ -462,6 +474,10 @@ static int pmic_mpp_config_set(struct pinctrl_dev *pctldev, unsigned int pin, if (ret < 0) return ret; + ret = pmic_mpp_write(state, pad, PMIC_MPP_REG_AOUT_CTL, pad->aout_level); + if (ret < 0) + return ret; + ret = pmic_mpp_write_mode_ctl(state, pad); if (ret < 0) return ret; @@ -507,6 +523,7 @@ static void pmic_mpp_config_dbg_show(struct pinctrl_dev *pctldev, seq_printf(s, " %-7s", modes[pad->analog_mode ? 1 : (pad->sink_mode ? 2 : 0)]); seq_printf(s, " %-7s", pmic_mpp_functions[pad->function]); seq_printf(s, " vin-%d", pad->power_source); + seq_printf(s, " %d", pad->aout_level); seq_printf(s, " %-8s", biases[pad->pullup]); seq_printf(s, " %-4s", pad->out_value ? "high" : "low"); } @@ -748,6 +765,12 @@ static int pmic_mpp_populate(struct pmic_mpp_state *state, pad->drive_strength = val; + val = pmic_mpp_read(state, pad, PMIC_MPP_REG_AOUT_CTL); + if (val < 0) + return val; + + pad->aout_level = val; + val = pmic_mpp_read(state, pad, PMIC_MPP_REG_EN_CTL); if (val < 0) return val;