linux-kernel - [PATCH v2 16/25] ASoC: sh: rz-ssi: Enable runtime PM autosuspend support

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Message-Id: <20241108104958.2931943-17-claudiu.beznea.uj@bp.renesas.com>
Date: Fri,  8 Nov 2024 12:49:49 +0200
From: Claudiu <claudiu.beznea@...on.dev>
To: geert+renesas@...der.be,
	mturquette@...libre.com,
	sboyd@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	biju.das.jz@...renesas.com,
	prabhakar.mahadev-lad.rj@...renesas.com,
	lgirdwood@...il.com,
	broonie@...nel.org,
	magnus.damm@...il.com,
	linus.walleij@...aro.org,
	perex@...ex.cz,
	tiwai@...e.com,
	p.zabel@...gutronix.de
Cc: linux-renesas-soc@...r.kernel.org,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	claudiu.beznea@...on.dev,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: [PATCH v2 16/25] ASoC: sh: rz-ssi: Enable runtime PM autosuspend support

From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Enable runtime PM autosuspend support. The chosen autosuspend delay is
zero for immediate autosuspend. In case there are users that need a
different autosuspend delay, it can be adjusted through sysfs.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
---

Changes in v2:
- none

 sound/soc/renesas/rz-ssi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/renesas/rz-ssi.c b/sound/soc/renesas/rz-ssi.c
index 35172630be8b..01e8b6a4e8a8 100644
--- a/sound/soc/renesas/rz-ssi.c
+++ b/sound/soc/renesas/rz-ssi.c
@@ -1140,6 +1140,9 @@ static int rz_ssi_probe(struct platform_device *pdev)
 	}
 
 	reset_control_deassert(ssi->rstc);
+	/* Default 0 for power saving. Can be overridden via sysfs. */
+	pm_runtime_set_autosuspend_delay(dev, 0);
+	pm_runtime_use_autosuspend(dev);
 	ret = devm_pm_runtime_enable(dev);
 	if (ret < 0) {
 		dev_err(dev, "Failed to enable runtime PM!\n");
-- 
2.39.2