From: Dikshita Agarwal <quic_dikshita@quicinc.com>
To: Konrad Dybcio <konrad.dybcio@linaro.org>,
Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
Vikash Garodia <quic_vgarodia@quicinc.com>,
Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
<linux-media@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 19/19] media: venus: pm_helpers: Use reset_bulk API
Date: Fri, 5 Apr 2024 14:00:11 +0530 [thread overview]
Message-ID: <79c2b0eb-e7f3-3826-d977-3c4367d42d7f@quicinc.com> (raw)
In-Reply-To: <20230911-topic-mars-v3-19-79f23b81c261@linaro.org>
On 3/27/2024 11:38 PM, Konrad Dybcio wrote:
> 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 <p.zabel@pengutronix.de>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
> 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;
> }
>
>
Reviewed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
prev parent reply other threads:[~2024-04-05 8:30 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 18:08 [PATCH v3 00/19] Venus cleanups Konrad Dybcio
2024-03-27 18:08 ` [PATCH v3 01/19] media: venus: pm_helpers: Only set rate of the core clock in core_clks_enable Konrad Dybcio
2024-04-05 7:31 ` Dikshita Agarwal
2024-04-05 8:49 ` Vikash Garodia
2024-03-27 18:08 ` [PATCH v3 02/19] media: venus: pm_helpers: Rename core_clks_get to venus_clks_get Konrad Dybcio
2024-04-05 7:32 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 03/19] media: venus: pm_helpers: Add kerneldoc to venus_clks_get() Konrad Dybcio
2024-04-05 8:26 ` Dikshita Agarwal
2024-04-05 12:44 ` Vikash Garodia
2024-04-09 18:22 ` Konrad Dybcio
2024-04-10 12:03 ` Vikash Garodia
2024-04-09 18:16 ` Konrad Dybcio
2024-03-27 18:08 ` [PATCH v3 04/19] media: venus: core: Set OPP clkname in a common code path Konrad Dybcio
2024-04-05 7:39 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 05/19] media: venus: pm_helpers: Kill dead code Konrad Dybcio
2024-04-05 7:49 ` Dikshita Agarwal
2024-04-09 18:24 ` Konrad Dybcio
2024-04-23 7:59 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 06/19] media: venus: pm_helpers: Move reset acquisition to common code Konrad Dybcio
2024-04-05 7:51 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 07/19] media: venus: core: Deduplicate OPP genpd names Konrad Dybcio
2024-04-05 7:52 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 08/19] media: venus: core: Get rid of vcodec_num Konrad Dybcio
2024-04-05 9:18 ` Dikshita Agarwal
2024-04-05 12:30 ` Vikash Garodia
2024-03-27 18:08 ` [PATCH v3 09/19] media: venus: core: Drop cache properties in resource struct Konrad Dybcio
2024-04-05 7:57 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 10/19] media: venus: core: Use GENMASK for dma_mask Konrad Dybcio
2024-04-05 7:59 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 11/19] media: venus: core: Remove cp_start Konrad Dybcio
2024-04-05 8:09 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 12/19] media: venus: pm_helpers: Commonize core_power Konrad Dybcio
2024-04-05 8:12 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 13/19] media: venus: pm_helpers: Remove pm_ops->core_put Konrad Dybcio
2024-04-05 9:01 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 14/19] media: venus: core: Define a pointer to core->res Konrad Dybcio
2024-04-24 0:33 ` Bryan O'Donoghue
2024-04-25 12:38 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 15/19] media: venus: pm_helpers: Simplify vcodec clock handling Konrad Dybcio
2024-04-25 12:44 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 16/19] media: venus: pm_helpers: Commonize getting clocks and GenPDs Konrad Dybcio
2024-04-25 12:46 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 17/19] media: venus: pm_helpers: Commonize vdec_get() Konrad Dybcio
2024-04-25 12:47 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 18/19] media: venus: pm_helpers: Commonize venc_get() Konrad Dybcio
2024-04-25 12:47 ` Dikshita Agarwal
2024-03-27 18:08 ` [PATCH v3 19/19] media: venus: pm_helpers: Use reset_bulk API Konrad Dybcio
2024-04-05 8:30 ` Dikshita Agarwal [this message]
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