From patchwork Mon Dec 18 11:32:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dikshita Agarwal X-Patchwork-Id: 13496659 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 5C5091A727; Mon, 18 Dec 2023 11:33:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="HHwPggij" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BIArv0A012855; Mon, 18 Dec 2023 11:33:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references; s= qcppdkim1; bh=/cCJZyuRsfh7Pp2thDUrqC1Vjur5pNpx8OcU5IE0yu4=; b=HH wPggijAubWFaot9K8AKI0mqt5u5ZDHKkcq1IeVLSTz5ye96hKl6cXhjAio2MvGnW DtyTb3u21bOhJHu2zvnyKigEZW2e6Yj8LQqTBk0RmXwqkNXylrLioOQPDe9LmqYx C4G+x0c3BkiscXqkyABH5vqtHwJCJi9xcE/XQ7KPpeljjWLYPR5yipN+CI0/UP3j r6gYDX1n/BBfpK96I1mPELaWne6BE5Io7wmEo7fB6LdcghTsLgBuWt6EDXXcuJxd f/acwdQt5PNhkSCZCQirElRtSLBDnG1xSRJ5syxBZ9yz4kQv8+9A2Owrn+8z7AKd DEBHm8bmBTgwkQCYUxSA== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3v2jx0gb9f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 18 Dec 2023 11:33:10 +0000 (GMT) Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3BIBX7xI030045; Mon, 18 Dec 2023 11:33:07 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3v14ykyyhq-1; Mon, 18 Dec 2023 11:33:07 +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 3BIBX7pP030023; Mon, 18 Dec 2023 11:33:07 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-dikshita-hyd.qualcomm.com [10.213.110.13]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3BIBX6B5029967; Mon, 18 Dec 2023 11:33:07 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 347544) id 308CA22D0; Mon, 18 Dec 2023 17:03:04 +0530 (+0530) From: Dikshita Agarwal To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, stanimir.k.varbanov@gmail.com, quic_vgarodia@quicinc.com, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, mchehab@kernel.org, bryan.odonoghue@linaro.org Cc: linux-arm-msm@vger.kernel.org, quic_abhinavk@quicinc.com, Dikshita Agarwal Subject: [PATCH v2 07/34] media: iris: initialize power resources Date: Mon, 18 Dec 2023 17:02:02 +0530 Message-Id: <1702899149-21321-8-git-send-email-quic_dikshita@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1702899149-21321-1-git-send-email-quic_dikshita@quicinc.com> References: <1702899149-21321-1-git-send-email-quic_dikshita@quicinc.com> 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-ORIG-GUID: mpnP_L6Zh2IFbIFYHUa1mah8F_DXeVza X-Proofpoint-GUID: mpnP_L6Zh2IFbIFYHUa1mah8F_DXeVza X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 phishscore=0 priorityscore=1501 suspectscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312180083 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Add support for initializing Iris "resources", which are clocks, interconnects, power domains, reset clocks, and clock frequencies used for Iris hardware. Signed-off-by: Dikshita Agarwal --- drivers/media/platform/qcom/vcodec/iris/Makefile | 3 +- .../media/platform/qcom/vcodec/iris/iris_core.h | 16 ++ .../media/platform/qcom/vcodec/iris/iris_probe.c | 8 + .../media/platform/qcom/vcodec/iris/resources.c | 232 +++++++++++++++++++++ .../media/platform/qcom/vcodec/iris/resources.h | 36 ++++ 5 files changed, 294 insertions(+), 1 deletion(-) create mode 100644 drivers/media/platform/qcom/vcodec/iris/resources.c create mode 100644 drivers/media/platform/qcom/vcodec/iris/resources.h diff --git a/drivers/media/platform/qcom/vcodec/iris/Makefile b/drivers/media/platform/qcom/vcodec/iris/Makefile index 5536ae0..0748819 100644 --- a/drivers/media/platform/qcom/vcodec/iris/Makefile +++ b/drivers/media/platform/qcom/vcodec/iris/Makefile @@ -1,3 +1,4 @@ -iris-objs += iris_probe.o +iris-objs += iris_probe.o \ + resources.o obj-$(CONFIG_VIDEO_QCOM_IRIS) += iris.o diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_core.h b/drivers/media/platform/qcom/vcodec/iris/iris_core.h index ab7fcee..c2bc95d 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_core.h +++ b/drivers/media/platform/qcom/vcodec/iris/iris_core.h @@ -19,6 +19,14 @@ * @vdev_dec: iris video device structure for decoder * @v4l2_file_ops: iris v4l2 file ops * @v4l2_ioctl_ops: iris v4l2 ioctl ops + * @bus_tbl: table of iris buses + * @bus_count: count of iris buses + * @power_domain_tbl: table of iris power domains + * @pd_count: count of iris power domains + * @clock_tbl: table of iris clocks + * @clk_count: count of iris clocks + * @reset_tbl: table of iris reset clocks + * @reset_count: count of iris reset clocks */ struct iris_core { @@ -29,6 +37,14 @@ struct iris_core { struct video_device *vdev_dec; const struct v4l2_file_operations *v4l2_file_ops; const struct v4l2_ioctl_ops *v4l2_ioctl_ops; + struct bus_info *bus_tbl; + u32 bus_count; + struct power_domain_info *power_domain_tbl; + u32 pd_count; + struct clock_info *clock_tbl; + u32 clk_count; + struct reset_info *reset_tbl; + u32 reset_count; }; #endif diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_probe.c b/drivers/media/platform/qcom/vcodec/iris/iris_probe.c index 2e93118..7bb9c92 100644 --- a/drivers/media/platform/qcom/vcodec/iris/iris_probe.c +++ b/drivers/media/platform/qcom/vcodec/iris/iris_probe.c @@ -8,6 +8,7 @@ #include #include "iris_core.h" +#include "resources.h" static int iris_register_video_device(struct iris_core *core) { @@ -73,6 +74,13 @@ static int iris_probe(struct platform_device *pdev) if (core->irq < 0) return core->irq; + ret = init_resources(core); + if (ret) { + dev_err_probe(core->dev, ret, + "%s: init resource failed with %d\n", __func__, ret); + return ret; + } + ret = v4l2_device_register(dev, &core->v4l2_dev); if (ret) return ret; diff --git a/drivers/media/platform/qcom/vcodec/iris/resources.c b/drivers/media/platform/qcom/vcodec/iris/resources.c new file mode 100644 index 0000000..5aebbe4 --- /dev/null +++ b/drivers/media/platform/qcom/vcodec/iris/resources.c @@ -0,0 +1,232 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "iris_core.h" +#include "resources.h" + +static const struct bus_info plat_bus_table[] = { + { NULL, "iris-cnoc", 1000, 1000 }, + { NULL, "iris-ddr", 1000, 15000000 }, +}; + +static const char * const plat_pd_table[] = { "iris-ctl", "vcodec", NULL }; +#define PD_COUNT 2 + +static const char * const plat_opp_pd_table[] = { "mxc", "mmcx", NULL }; +#define OPP_PD_COUNT 2 + +static const struct clock_info plat_clk_table[] = { + { NULL, "gcc_video_axi0", GCC_VIDEO_AXI0_CLK, 0, 0 }, + { NULL, "core_clk", VIDEO_CC_MVS0C_CLK, 0, 0 }, + { NULL, "vcodec_core", VIDEO_CC_MVS0_CLK, 1, 0 }, +}; + +static const char * const plat_clk_reset_table[] = { "video_axi_reset", NULL }; +#define RESET_COUNT 1 + +static void iris_pd_release(void *res) +{ + struct device *pd = (struct device *)res; + + dev_pm_domain_detach(pd, true); +} + +static int iris_pd_get(struct iris_core *core, struct power_domain_info *pdinfo) +{ + int ret; + + pdinfo->genpd_dev = dev_pm_domain_attach_by_name(core->dev, pdinfo->name); + if (IS_ERR_OR_NULL(pdinfo->genpd_dev)) + ret = PTR_ERR(pdinfo->genpd_dev) ? : -ENODATA; + + ret = devm_add_action_or_reset(core->dev, iris_pd_release, (void *)pdinfo->genpd_dev); + if (ret) + return ret; + + return ret; +} + +static void iris_opp_dl_release(void *res) +{ + struct device_link *link = (struct device_link *)res; + + device_link_del(link); +} + +static int iris_opp_dl_get(struct device *dev, struct device *supplier) +{ + u32 flag = DL_FLAG_RPM_ACTIVE | DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS; + struct device_link *link = NULL; + int ret; + + link = device_link_add(dev, supplier, flag); + if (!link) + return -EINVAL; + + ret = devm_add_action_or_reset(dev, iris_opp_dl_release, (void *)link); + + return ret; +} + +static int init_bus(struct iris_core *core) +{ + struct bus_info *binfo = NULL; + u32 i = 0; + + core->bus_count = ARRAY_SIZE(plat_bus_table); + core->bus_tbl = devm_kzalloc(core->dev, + sizeof(struct bus_info) * core->bus_count, + GFP_KERNEL); + if (!core->bus_tbl) + return -ENOMEM; + + for (i = 0; i < core->bus_count; i++) { + binfo = &core->bus_tbl[i]; + binfo->name = plat_bus_table[i].name; + binfo->bw_min_kbps = plat_bus_table[i].bw_min_kbps; + binfo->bw_max_kbps = plat_bus_table[i].bw_max_kbps; + binfo->icc = devm_of_icc_get(core->dev, binfo->name); + if (IS_ERR(binfo->icc)) { + dev_err(core->dev, + "%s: failed to get bus: %s\n", __func__, binfo->name); + return PTR_ERR(binfo->icc); + } + } + + return 0; +} + +static int init_power_domains(struct iris_core *core) +{ + struct power_domain_info *pdinfo = NULL; + struct device **opp_vdevs = NULL; + int ret; + u32 i; + + core->pd_count = PD_COUNT; + core->power_domain_tbl = devm_kzalloc(core->dev, + sizeof(struct power_domain_info) * core->pd_count, + GFP_KERNEL); + if (!core->power_domain_tbl) + return -ENOMEM; + + for (i = 0; i < core->pd_count; i++) { + pdinfo = &core->power_domain_tbl[i]; + pdinfo->name = plat_pd_table[i]; + ret = iris_pd_get(core, pdinfo); + if (ret) { + dev_err(core->dev, + "%s: failed to get pd: %s\n", __func__, pdinfo->name); + return ret; + } + } + + ret = devm_pm_opp_attach_genpd(core->dev, plat_opp_pd_table, &opp_vdevs); + if (ret) + return ret; + + for (i = 0; i < OPP_PD_COUNT; i++) { + ret = iris_opp_dl_get(core->dev, opp_vdevs[i]); + if (ret) { + dev_err(core->dev, "%s: failed to create dl: %s\n", + __func__, dev_name(opp_vdevs[i])); + return ret; + } + } + + ret = devm_pm_opp_of_add_table(core->dev); + if (ret) { + dev_err(core->dev, "%s: failed to add opp table\n", __func__); + return ret; + } + + return ret; +} + +static int init_clocks(struct iris_core *core) +{ + struct clock_info *cinfo = NULL; + u32 i; + + core->clk_count = ARRAY_SIZE(plat_clk_table); + core->clock_tbl = devm_kzalloc(core->dev, + sizeof(struct clock_info) * core->clk_count, + GFP_KERNEL); + if (!core->clock_tbl) + return -ENOMEM; + + for (i = 0; i < core->clk_count; i++) { + cinfo = &core->clock_tbl[i]; + cinfo->name = plat_clk_table[i].name; + cinfo->clk_id = plat_clk_table[i].clk_id; + cinfo->has_scaling = plat_clk_table[i].has_scaling; + cinfo->clk = devm_clk_get(core->dev, cinfo->name); + if (IS_ERR(cinfo->clk)) { + dev_err(core->dev, + "%s: failed to get clock: %s\n", __func__, cinfo->name); + return PTR_ERR(cinfo->clk); + } + } + + return 0; +} + +static int init_reset_clocks(struct iris_core *core) +{ + struct reset_info *rinfo = NULL; + u32 i = 0; + + core->reset_count = RESET_COUNT; + core->reset_tbl = devm_kzalloc(core->dev, + sizeof(struct reset_info) * core->reset_count, + GFP_KERNEL); + if (!core->reset_tbl) + return -ENOMEM; + + for (i = 0; i < core->reset_count; i++) { + rinfo = &core->reset_tbl[i]; + rinfo->name = plat_clk_reset_table[i]; + rinfo->rst = devm_reset_control_get(core->dev, rinfo->name); + if (IS_ERR(rinfo->rst)) { + dev_err(core->dev, + "%s: failed to get reset clock: %s\n", __func__, rinfo->name); + return PTR_ERR(rinfo->rst); + } + } + + return 0; +} + +int init_resources(struct iris_core *core) +{ + int ret; + + ret = init_bus(core); + if (ret) + return ret; + + ret = init_power_domains(core); + if (ret) + return ret; + + ret = init_clocks(core); + if (ret) + return ret; + + ret = init_reset_clocks(core); + + return ret; +} diff --git a/drivers/media/platform/qcom/vcodec/iris/resources.h b/drivers/media/platform/qcom/vcodec/iris/resources.h new file mode 100644 index 0000000..d21bcc7e --- /dev/null +++ b/drivers/media/platform/qcom/vcodec/iris/resources.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _RESOURCES_H_ +#define _RESOURCES_H_ + +struct bus_info { + struct icc_path *icc; + const char *name; + u32 bw_min_kbps; + u32 bw_max_kbps; +}; + +struct power_domain_info { + struct device *genpd_dev; + const char *name; +}; + +struct clock_info { + struct clk *clk; + const char *name; + u32 clk_id; + bool has_scaling; + u64 prev; +}; + +struct reset_info { + struct reset_control *rst; + const char *name; +}; + +int init_resources(struct iris_core *core); + +#endif