From nobody Wed Oct 8 11:02:02 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9B509A93D for ; Sun, 29 Jun 2025 10:04:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751191496; cv=none; b=HJckoxQTsH2867OhrF8KUvRCCFng9mkMT8crCDa83zEWppGz6b7CeS0WX+NEjDmTQMF7vnk6C1DgO9nz8NIjDzqVVFBuZ30PXDTaw9OQoHpnpkcYqNXZZe8UYe5ImLUraiC572bguSgFCW5Q6BV11RSILJTGO+smhjFKRjWt+g0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751191496; c=relaxed/simple; bh=U6i18Vnf5LlcNLppMq8ML+MT2YpNCZVqfiXlyUVrYRw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Xhlj0H55PzNlLH+xc433RiciFSvj/PJD0jYLN7jRwbbWPvnO8HxNVGuBdrKZEKsw6vhRJs1ywVmH8vfDNH/Bhm2Cr1j0KFOGVjTopPXEcdTMK/wWSqDp27aExUxm5IaLhor/nFSmTXu68cKNAA6lUFeP5FSH6YOhdF0V2JxQaCs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lxepMrrv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lxepMrrv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 475E8C4CEEB; Sun, 29 Jun 2025 10:04:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751191496; bh=U6i18Vnf5LlcNLppMq8ML+MT2YpNCZVqfiXlyUVrYRw=; h=From:To:Cc:Subject:Date:From; b=lxepMrrvkWkBMQYm8PfeqeD0VeXSRA9jUtvbNmJ68DGzuSkqKyw67DRqNc6KzpTcU QHGBeBfkdVGaA0WHE4A9Rs9+8CoGp1SBHdnANAdKyXMNhLOIyZNCxslGzAHuQIvaeZ ZicSOojvruHyEOtXvbnqvGLiIbuj6n21DvHwX8s0u1gvymhNE9aY1Ze7cyvqvlOAJM eLFQpen00lPGd/qeOa26V8N5oMn4v3Uo0YAt2ypVG6iTEIfXZMAYCfAUJ78ARoO39U VWgjgDmykjU6xjPAeAjLv1YCCPXns7VLfYblpji9Dn/M3EECg9M7gB0Ox2EWDbfo+D x7Y0Ya7CKXe8g== From: Jisheng Zhang To: Liam Girdwood , Mark Brown Cc: linux-kernel@vger.kernel.org Subject: [PATCH] regulator: rt5739: Enable REGCACHE_MAPLE Date: Sun, 29 Jun 2025 17:48:03 +0800 Message-ID: <20250629094803.776-1-jszhang@kernel.org> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Enable regmap cache to reduce i2c transactions and corresponding interrupts if regulator is accessed frequently. Signed-off-by: Jisheng Zhang --- drivers/regulator/rt5739.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/regulator/rt5739.c b/drivers/regulator/rt5739.c index 91412c905ce6..5fcddd7c2da7 100644 --- a/drivers/regulator/rt5739.c +++ b/drivers/regulator/rt5739.c @@ -24,6 +24,8 @@ #define RT5739_REG_NSEL1 0x01 #define RT5739_REG_CNTL1 0x02 #define RT5739_REG_ID1 0x03 +#define RT5739_REG_ID2 0x04 +#define RT5739_REG_MON 0x05 #define RT5739_REG_CNTL2 0x06 #define RT5739_REG_CNTL4 0x08 =20 @@ -236,11 +238,18 @@ static void rt5739_init_regulator_desc(struct regulat= or_desc *desc, } } =20 +static bool rt5739_volatile_reg(struct device *dev, unsigned int reg) +{ + return reg =3D=3D RT5739_REG_MON; +} + static const struct regmap_config rt5739_regmap_config =3D { .name =3D "rt5739", .reg_bits =3D 8, .val_bits =3D 8, .max_register =3D RT5739_REG_CNTL4, + .cache_type =3D REGCACHE_MAPLE, + .volatile_reg =3D rt5739_volatile_reg, }; =20 static int rt5739_probe(struct i2c_client *i2c) --=20 2.49.0