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From: Adrian Ratiu <adrian.ratiu@collabora.com>
To: Ezequiel Garcia <ezequiel@collabora.com>,
	Philipp Zabel <p.zabel@pengutronix.de>
Cc: Fruehberger Peter <Peter.Fruehberger@de.bosch.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	Mark Brown <broonie@kernel.org>,
	kuhanh.murugasen.krishnan@intel.com,
	Daniel Vetter <daniel@ffwll.ch>,
	kernel@collabora.com, linux-media@vger.kernel.org
Subject: [PATCH 05/18] media: hantro: prepare clocks before variant inits are run
Date: Mon, 12 Oct 2020 23:59:44 +0300
Message-ID: <20201012205957.889185-6-adrian.ratiu@collabora.com> (raw)
In-Reply-To: <20201012205957.889185-1-adrian.ratiu@collabora.com>

The fundamental idea is: clocks are prepared in the driver probe() then
each use-case will enable/disable them as needed.

Some variants like imx8mq need to have the clocks enabled during the
HW init phase, so they will benefit from having the clocks prepared
before the variant init callback to avoid duing a full prepare_enable/
unprepare_disable, so move the clk prepare a bit earlier.

Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
---
 drivers/staging/media/hantro/hantro_drv.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index c2ea54552ce9..3734efa80a7e 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -813,22 +813,22 @@ static int hantro_probe(struct platform_device *pdev)
 		}
 	}
 
+	ret = clk_bulk_prepare(vpu->variant->num_clocks, vpu->clocks);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to prepare clocks\n");
+		return ret;
+	}
+
 	ret = vpu->variant->init(vpu);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to init VPU hardware\n");
-		return ret;
+		goto err_clk_unprepare;
 	}
 
 	pm_runtime_set_autosuspend_delay(vpu->dev, 100);
 	pm_runtime_use_autosuspend(vpu->dev);
 	pm_runtime_enable(vpu->dev);
 
-	ret = clk_bulk_prepare(vpu->variant->num_clocks, vpu->clocks);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to prepare clocks\n");
-		return ret;
-	}
-
 	ret = v4l2_device_register(&pdev->dev, &vpu->v4l2_dev);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to register v4l2 device\n");
-- 
2.28.0


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  parent reply index

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 20:59 [PATCH 00/18] Add Hantro regmap and VC8000 h264 decode support Adrian Ratiu
2020-10-12 20:59 ` [PATCH 01/18] media: hantro: document all int reg bits up to vc8000 Adrian Ratiu
2020-10-12 20:59 ` [PATCH 02/18] media: hantro: make consistent use of decimal register notation Adrian Ratiu
2020-10-12 20:59 ` [PATCH 03/18] media: hantro: make G1_REG_SOFT_RESET Rockchip specific Adrian Ratiu
2020-10-12 20:59 ` [PATCH 04/18] media: hantro: add reset controller support Adrian Ratiu
2020-10-13  8:11   ` Philipp Zabel
2020-10-12 20:59 ` Adrian Ratiu [this message]
2020-10-12 20:59 ` [PATCH 06/18] media: hantro: imx8mq: simplify ctrlblk reset logic Adrian Ratiu
2020-10-12 20:59 ` [PATCH 07/18] regmap: mmio: add config option to allow relaxed MMIO accesses Adrian Ratiu
2020-10-13 10:26   ` Mark Brown
2020-10-14 11:51     ` Adrian Ratiu
2020-10-14 12:12       ` Mark Brown
2020-10-14 13:00         ` Adrian Ratiu
2020-10-12 20:59 ` [PATCH 08/18] media: hantro: add initial MMIO regmap infrastructure Adrian Ratiu
2020-10-12 20:59 ` [PATCH 09/18] media: hantro: default regmap to relaxed MMIO Adrian Ratiu
2020-10-12 20:59 ` [PATCH 10/18] media: hantro: convert G1 h264 decoder to regmap fields Adrian Ratiu
2020-10-12 20:59 ` [PATCH 11/18] media: hantro: convert G1 postproc to regmap Adrian Ratiu
2020-10-12 20:59 ` [PATCH 12/18] media: hantro: add VC8000D h264 decoding Adrian Ratiu
2020-10-12 20:59 ` [PATCH 13/18] media: hantro: add VC8000D postproc support Adrian Ratiu
2020-10-12 20:59 ` [PATCH 14/18] media: hantro: make PP enablement logic a bit smarter Adrian Ratiu
2020-10-12 20:59 ` [PATCH 15/18] media: hantro: add user-selectable, platform-selectable H264 High10 Adrian Ratiu
2020-10-12 20:59 ` [PATCH 16/18] media: hantro: rename h264_dec as it's not G1 specific anymore Adrian Ratiu
2020-10-12 20:59 ` [PATCH 17/18] media: hantro: add dump registers debug option before decode start Adrian Ratiu
2020-10-12 20:59 ` [PATCH 18/18] media: hantro: document encoder reg fields Adrian Ratiu
2020-10-12 23:39 ` [PATCH 00/18] Add Hantro regmap and VC8000 h264 decode support Jonas Karlman
2020-10-13  6:48   ` Adrian Ratiu
2020-10-29 12:38   ` Ezequiel Garcia
2020-10-29 16:21     ` Jonas Karlman
2020-11-03 15:27       ` Ezequiel Garcia
2020-10-29 13:07 ` Ezequiel Garcia
2020-10-29 14:15   ` Robin Murphy
2020-10-29 14:48     ` Mark Brown
2020-10-29 16:27     ` Ezequiel Garcia
2020-10-29 17:59       ` Mark Brown

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