From mboxrd@z Thu Jan 1 00:00:00 1970 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 ED826217F23 for ; Sun, 29 Jun 2025 10:07:59 +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=1751191680; cv=none; b=A3ORaC5zcPNGEXoPzc64Gx5RCb9CUIM1U1C2n9LUxmvAWsj/6QkShI5BMrjRLmnTynYJnbGlw8MX5DoeWjzQgbPTI19PfIPIsvVzGA8PLbrai3crocnsYxJlFcDiYVwEngcHYenx657OWbc2pSnh0tU7ZlK4PJ8NFKX8LkpxIeI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751191680; c=relaxed/simple; bh=xl15sp93FApoJQWrZ6I3m5fCoKY4t7l9xkTS0g5f+rY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=s3/1amPElD3TVr4VgExRg3HE5ZyMZnaeQgljkd6J7Jtes2dretuQ2ckznSIaZ0KvNDvBJZJWvQBYHSa+YJvzD1RtmPS5/tELIL+Dg435LTSIjY8zyDSzttd0/zGTgbx3EE3nsjoYwtWOqnNIG8/EuVfnobtj48/YvB3kgQ+CrJw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bxXcuUpk; 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="bxXcuUpk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2988C4CEEF; Sun, 29 Jun 2025 10:07:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751191679; bh=xl15sp93FApoJQWrZ6I3m5fCoKY4t7l9xkTS0g5f+rY=; h=From:To:Cc:Subject:Date:From; b=bxXcuUpk6s5rBzK0yc/AY7orQQZv41W0VvZwol7vzlfQZVCBU0EerHP67mADqgCqp mKLi5b5n8l6bMdSoCeXqHHaeRbduB9bvp3hNTyDVqRYe0FGgU011waPKEQtbcnFIPH MlNwB/uCPZSJIVg33auzLqSwOLAYFp0HVRTyIov+5EVXn0cOIR7qht3RUY61qSZud3 gRDiDE6+rweVUXTYw5bZ6zS1CmjM5YW2dKhPx+3/ADA3CmFGrwWv3mg/fq16f/6k0p lIZVeKeKpR0MabQGGTbwmcAsSA8LxuJCknBAzBE0RnaQzeGNH/hLOMxtRjF2ZsbVwd bWSISsMP3tfKw== From: Jisheng Zhang To: Liam Girdwood , Mark Brown Cc: linux-kernel@vger.kernel.org Subject: [PATCH] regulator: tps6286x-regulator: Enable REGCACHE_MAPLE Date: Sun, 29 Jun 2025 17:51:07 +0800 Message-ID: <20250629095107.804-1-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: 8bit Enable regmap cache to reduce i2c transactions and corresponding interrupts if regulator is accessed frequently. Signed-off-by: Jisheng Zhang --- drivers/regulator/tps6286x-regulator.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/regulator/tps6286x-regulator.c b/drivers/regulator/tps6286x-regulator.c index 75f441f36de7..778f169b0acc 100644 --- a/drivers/regulator/tps6286x-regulator.c +++ b/drivers/regulator/tps6286x-regulator.c @@ -19,13 +19,22 @@ #define TPS6286X_CONTROL_FPWM BIT(4) #define TPS6286X_CONTROL_SWEN BIT(5) +#define TPS6286X_STATUS 0x05 + #define TPS6286X_MIN_MV 400 #define TPS6286X_MAX_MV 1675 #define TPS6286X_STEP_MV 5 +static bool tps6287x_volatile_reg(struct device *dev, unsigned int reg) +{ + return reg == TPS6286X_STATUS; +} + static const struct regmap_config tps6286x_regmap_config = { .reg_bits = 8, .val_bits = 8, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = tps6287x_volatile_reg, }; static int tps6286x_set_mode(struct regulator_dev *rdev, unsigned int mode) -- 2.49.0