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[78.88.45.141]) by smtp.gmail.com with ESMTPSA id z2-20020a1709060be200b00a45f2dc6795sm5702733ejg.137.2024.03.27.11.09.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Mar 2024 11:09:24 -0700 (PDT) From: Konrad Dybcio Date: Wed, 27 Mar 2024 19:08:57 +0100 Subject: [PATCH v3 19/19] media: venus: pm_helpers: Use reset_bulk API Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20230911-topic-mars-v3-19-79f23b81c261@linaro.org> References: <20230911-topic-mars-v3-0-79f23b81c261@linaro.org> In-Reply-To: <20230911-topic-mars-v3-0-79f23b81c261@linaro.org> To: Stanimir Varbanov , Vikash Garodia , Bryan O'Donoghue , Andy Gross , Bjorn Andersson , Mauro Carvalho Chehab , Dikshita Agarwal , Philipp Zabel Cc: Marijn Suijten , Stanimir Varbanov , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1711562924; l=3507; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=3qglLyapUHx3u+l/QabEvMvzkmj10BvUO0XdDxR56GM=; b=7CWOWi2OztLdyQck6jwMllwgs6Ti7I20v4+82giroq/8iguIMd2hwLCi1bm402+/K/9ReYDt8 CtycxK0Qi43ABsCBsfUanSiexz7VGGmQiNhGh7FWiEdu5GvKpUlGAFC X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= All of the resets are toggled together. Use the bulk api to save on some code complexity. The delay between resets is now correctly determined by the reset framework. Reviewed-by: Philipp Zabel Signed-off-by: Konrad Dybcio --- drivers/media/platform/qcom/venus/core.c | 15 ++++++++++----- drivers/media/platform/qcom/venus/core.h | 4 ++-- drivers/media/platform/qcom/venus/pm_helpers.c | 15 +++------------ 3 files changed, 15 insertions(+), 19 deletions(-) diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index 6914fa991efb..f1762c725a11 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -328,11 +328,16 @@ static int venus_probe(struct platform_device *pdev) if (ret) return ret; - for (i = 0; i < res->resets_num; i++) { - core->resets[i] = devm_reset_control_get_exclusive(dev, res->resets[i]); - if (IS_ERR(core->resets[i])) - return PTR_ERR(core->resets[i]); - } + core->resets = devm_kcalloc(dev, res->resets_num, sizeof(*core->resets), GFP_KERNEL); + if (res->resets_num && !core->resets) + return -ENOMEM; + + for (i = 0; i < res->resets_num; i++) + core->resets[i].id = res->resets[i]; + + ret = devm_reset_control_bulk_get_exclusive(dev, res->resets_num, core->resets); + if (ret) + return dev_err_probe(dev, ret, "Failed to get resets\n"); ret = venus_get_resources(core); if (ret) diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index b4c41dc0f8c7..287bcf905057 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -130,7 +130,7 @@ struct venus_format { * @pmdomains: a pointer to a list of pmdomains * @opp_dl_venus: an device-link for device OPP * @opp_pmdomain: an OPP power-domain - * @resets: an array of reset signals + * @resets: a reset_control_bulk_data array of hardware reset signals * @vdev_dec: a reference to video device structure for decoder instances * @vdev_enc: a reference to video device structure for encoder instances * @v4l2_dev: a holder for v4l2 device structure @@ -183,7 +183,7 @@ struct venus_core { struct dev_pm_domain_list *pmdomains; struct device_link *opp_dl_venus; struct device *opp_pmdomain; - struct reset_control *resets[VIDC_RESETS_NUM_MAX]; + struct reset_control_bulk_data *resets; struct video_device *vdev_dec; struct video_device *vdev_enc; struct v4l2_device v4l2_dev; diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index 5d174b83926b..7690f66d1184 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -865,21 +865,12 @@ void vcodec_domains_put(struct venus_core *core) static int core_resets_reset(struct venus_core *core) { const struct venus_resources *res = core->res; - unsigned int i; int ret; - for (i = 0; i < res->resets_num; i++) { - ret = reset_control_assert(core->resets[i]); - if (ret) - goto err; - - usleep_range(150, 250); - ret = reset_control_deassert(core->resets[i]); - if (ret) - goto err; - } + ret = reset_control_bulk_reset(res->resets_num, core->resets); + if (ret) + dev_err(core->dev, "Failed to toggle resets: %d\n", ret); -err: return ret; }