From patchwork Sat Jan 9 18:03:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 12008627 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 D46D8C433E6 for ; Sat, 9 Jan 2021 18:05:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B23023A31 for ; Sat, 9 Jan 2021 18:05:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726189AbhAISEu (ORCPT ); Sat, 9 Jan 2021 13:04:50 -0500 Received: from relay04.th.seeweb.it ([5.144.164.165]:45949 "EHLO relay04.th.seeweb.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725926AbhAISEu (ORCPT ); Sat, 9 Jan 2021 13:04:50 -0500 Received: from IcarusMOD.eternityproject.eu (unknown [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r1.th.seeweb.it (Postfix) with ESMTPSA id 8E93F1F546; Sat, 9 Jan 2021 19:04:07 +0100 (CET) From: AngeloGioacchino Del Regno To: linux-arm-msm@vger.kernel.org Cc: konrad.dybcio@somainline.org, marijn.suijten@somainline.org, martin.botka@somainline.org, phone-devel@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, rjw@rjwysocki.net, viresh.kumar@linaro.org, nks@flawful.org, agross@kernel.org, bjorn.andersson@linaro.org, daniel.lezcano@linaro.org, manivannan.sadhasivam@linaro.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, AngeloGioacchino Del Regno Subject: [PATCH v2 02/15] soc: qcom: spm: Implement support for SAWv4.1, SDM630/660 L2 AVS Date: Sat, 9 Jan 2021 19:03:46 +0100 Message-Id: <20210109180359.236098-3-angelogioacchino.delregno@somainline.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210109180359.236098-1-angelogioacchino.delregno@somainline.org> References: <20210109180359.236098-1-angelogioacchino.delregno@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Implement the support for SAW v4.1, used in at least MSM8998, SDM630, SDM660 and APQ variants and, while at it, also add the configuration for the SDM630/660 Silver and Gold cluster L2 Adaptive Voltage Scaler: this is also one of the prerequisites to allow the OSM controller to perform DCVS. Signed-off-by: AngeloGioacchino Del Regno --- drivers/soc/qcom/spm.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/drivers/soc/qcom/spm.c b/drivers/soc/qcom/spm.c index 0c8aa9240c41..843732d12c54 100644 --- a/drivers/soc/qcom/spm.c +++ b/drivers/soc/qcom/spm.c @@ -32,9 +32,28 @@ enum spm_reg { SPM_REG_SEQ_ENTRY, SPM_REG_SPM_STS, SPM_REG_PMIC_STS, + SPM_REG_AVS_CTL, + SPM_REG_AVS_LIMIT, SPM_REG_NR, }; +static const u16 spm_reg_offset_v4_1[SPM_REG_NR] = { + [SPM_REG_AVS_CTL] = 0x904, + [SPM_REG_AVS_LIMIT] = 0x908, +}; + +static const struct spm_reg_data spm_reg_660_gold_l2 = { + .reg_offset = spm_reg_offset_v4_1, + .avs_ctl = 0x1010031, + .avs_limit = 0x4580458, +}; + +static const struct spm_reg_data spm_reg_660_silver_l2 = { + .reg_offset = spm_reg_offset_v4_1, + .avs_ctl = 0x101c031, + .avs_limit = 0x4580458, +}; + static const u16 spm_reg_offset_v2_1[SPM_REG_NR] = { [SPM_REG_CFG] = 0x08, [SPM_REG_SPM_CTL] = 0x30, @@ -126,6 +145,10 @@ void spm_set_low_power_mode(struct spm_driver_data *drv, } static const struct of_device_id spm_match_table[] = { + { .compatible = "qcom,sdm660-gold-saw2-v4.1-l2", + .data = &spm_reg_660_gold_l2 }, + { .compatible = "qcom,sdm660-silver-saw2-v4.1-l2", + .data = &spm_reg_660_silver_l2 }, { .compatible = "qcom,msm8974-saw2-v2.1-cpu", .data = &spm_reg_8974_8084_cpu }, { .compatible = "qcom,apq8084-saw2-v2.1-cpu", @@ -169,6 +192,8 @@ static int spm_dev_probe(struct platform_device *pdev) * CPU was held in reset, the reset signal could trigger the SPM state * machine, before the sequences are completely written. */ + spm_register_write(drv, SPM_REG_AVS_CTL, drv->reg_data->avs_ctl); + spm_register_write(drv, SPM_REG_AVS_LIMIT, drv->reg_data->avs_limit); spm_register_write(drv, SPM_REG_CFG, drv->reg_data->spm_cfg); spm_register_write(drv, SPM_REG_DLY, drv->reg_data->spm_dly); spm_register_write(drv, SPM_REG_PMIC_DLY, drv->reg_data->pmic_dly); @@ -178,7 +203,8 @@ static int spm_dev_probe(struct platform_device *pdev) drv->reg_data->pmic_data[1]); /* Set up Standby as the default low power mode */ - spm_set_low_power_mode(drv, PM_SLEEP_MODE_STBY); + if (drv->reg_data->reg_offset[SPM_REG_SPM_CTL]) + spm_set_low_power_mode(drv, PM_SLEEP_MODE_STBY); return 0; }