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Thu, 29 Aug 2024 09:25:56 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 4178kmcghx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 09:25:56 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 47T9PtaI018847; Thu, 29 Aug 2024 09:25:55 GMT Received: from hu-maiyas-hyd.qualcomm.com (hu-msavaliy-hyd.qualcomm.com [10.213.110.207]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 47T9PtF9018844 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 09:25:55 +0000 Received: by hu-maiyas-hyd.qualcomm.com (Postfix, from userid 429934) id 7D412242FD; Thu, 29 Aug 2024 14:55:54 +0530 (+0530) From: Mukesh Kumar Savaliya To: konrad.dybcio@linaro.org, andersson@kernel.org, andi.shyti@kernel.org, linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org Cc: quic_vdadhani@quicinc.com, Mukesh Kumar Savaliya Subject: [PATCH v1 1/4] dt-bindindgs: i2c: qcom, i2c-geni: Document shared flag Date: Thu, 29 Aug 2024 14:54:15 +0530 Message-Id: <20240829092418.2863659-2-quic_msavaliy@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240829092418.2863659-1-quic_msavaliy@quicinc.com> References: <20240829092418.2863659-1-quic_msavaliy@quicinc.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: FuJOg8x8BfqWFpfCyHDGYV8lhStyWk4n X-Proofpoint-ORIG-GUID: FuJOg8x8BfqWFpfCyHDGYV8lhStyWk4n X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-29_02,2024-08-29_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 mlxscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408290069 Adds qcom,shared-se flag usage. Use this when particular I2C serial controller needs to be shared between two subsystems. Signed-off-by: Mukesh Kumar Savaliya --- Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml index 9f66a3bb1f80..ae423127f736 100644 --- a/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml +++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml @@ -60,6 +60,10 @@ properties: power-domains: maxItems: 1 + qcom,shared-se: + description: True if I2C needs to be shared between two or more subsystems. + type: boolean + reg: maxItems: 1 From patchwork Thu Aug 29 09:24:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mukesh Kumar Savaliya X-Patchwork-Id: 823669 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 832D518E355; 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Thu, 29 Aug 2024 09:26:06 +0000 (GMT) Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTP id 47T9Q3Xh019359; Thu, 29 Aug 2024 09:26:03 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 4178kmcgjm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 09:26:03 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 47T9Q2X3019351; Thu, 29 Aug 2024 09:26:02 GMT Received: from hu-maiyas-hyd.qualcomm.com (hu-msavaliy-hyd.qualcomm.com [10.213.110.207]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 47T9Q2VA019348 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 09:26:02 +0000 Received: by hu-maiyas-hyd.qualcomm.com (Postfix, from userid 429934) id 96D5A242FD; Thu, 29 Aug 2024 14:56:01 +0530 (+0530) From: Mukesh Kumar Savaliya To: konrad.dybcio@linaro.org, andersson@kernel.org, andi.shyti@kernel.org, linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org Cc: quic_vdadhani@quicinc.com, Mukesh Kumar Savaliya Subject: [PATCH v1 3/4] soc: qcom: geni-se: Export function geni_se_clks_off() Date: Thu, 29 Aug 2024 14:54:17 +0530 Message-Id: <20240829092418.2863659-4-quic_msavaliy@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240829092418.2863659-1-quic_msavaliy@quicinc.com> References: <20240829092418.2863659-1-quic_msavaliy@quicinc.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: MRxVbS7nUIwsAw6FPHJKAPJLJ_J0RRh1 X-Proofpoint-ORIG-GUID: MRxVbS7nUIwsAw6FPHJKAPJLJ_J0RRh1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-29_02,2024-08-29_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 mlxscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408290069 Currently driver provides geni_se_resources_off() function to turn off SE resources like clocks, pinctrl. But we don't have function to control clock separately, hence export function geni_se_clks_off() to turn off clocks separately without disturbing GPIO. The client drivers like i2c requires this function for use case where i2c SE is shared between two subsystems. Signed-off-by: Mukesh Kumar Savaliya --- drivers/soc/qcom/qcom-geni-se.c | 4 +++- include/linux/soc/qcom/geni-se.h | 3 +++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index 2e8f24d5da80..20166c8fc919 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. +// Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. /* Disable MMIO tracing to prevent excessive logging of unwanted MMIO traces */ #define __DISABLE_TRACE_MMIO__ @@ -482,13 +483,14 @@ void geni_se_config_packing(struct geni_se *se, int bpw, int pack_words, } EXPORT_SYMBOL_GPL(geni_se_config_packing); -static void geni_se_clks_off(struct geni_se *se) +void geni_se_clks_off(struct geni_se *se) { struct geni_wrapper *wrapper = se->wrapper; clk_disable_unprepare(se->clk); clk_bulk_disable_unprepare(wrapper->num_clks, wrapper->clks); } +EXPORT_SYMBOL_GPL(geni_se_clks_off); /** * geni_se_resources_off() - Turn off resources associated with the serial diff --git a/include/linux/soc/qcom/geni-se.h b/include/linux/soc/qcom/geni-se.h index 0f038a1a0330..caf2c0c4505b 100644 --- a/include/linux/soc/qcom/geni-se.h +++ b/include/linux/soc/qcom/geni-se.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef _LINUX_QCOM_GENI_SE @@ -494,6 +495,8 @@ int geni_se_resources_off(struct geni_se *se); int geni_se_resources_on(struct geni_se *se); +void geni_se_clks_off(struct geni_se *se); + int geni_se_clk_tbl_get(struct geni_se *se, unsigned long **tbl); int geni_se_clk_freq_match(struct geni_se *se, unsigned long req_freq,