From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752043AbeDQIw4 (ORCPT ); Tue, 17 Apr 2018 04:52:56 -0400 Received: from fllnx210.ext.ti.com ([198.47.19.17]:28051 "EHLO fllnx210.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751147AbeDQIwy (ORCPT ); Tue, 17 Apr 2018 04:52:54 -0400 From: Keerthy To: CC: , , , Subject: [PATCH] regulator: lp87565: Enable LP87565_BUCK_CTRL_1_FPWM_MP_0_2 Date: Tue, 17 Apr 2018 14:21:55 +0530 Message-ID: <1523955115-30164-1-git-send-email-j-keerthy@ti.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Buck10 is a multi(dual) phase regulator. So as part of enabling it turn on the LP87565_BUCK_CTRL_1_FPWM_MP_0_2 bit which forces it to operate always in multiphase and forced-PWM operation mode. This helps improve the transient voltage response while switching OPP. Signed-off-by: Keerthy --- Boot tested on dra76-evm and read the ctrl register after probe. Applies on top of linux-next branch with https://patchwork.kernel.org/patch/10344529/ on top. drivers/regulator/lp87565-regulator.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/lp87565-regulator.c b/drivers/regulator/lp87565-regulator.c index 9ee08d6..3af588e 100644 --- a/drivers/regulator/lp87565-regulator.c +++ b/drivers/regulator/lp87565-regulator.c @@ -178,7 +178,8 @@ static const struct lp87565_regulator regulators[] = { LP87565_REGULATOR("BUCK10", LP87565_BUCK_10, "buck10", lp87565_buck_ops, 256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET, LP87565_REG_BUCK0_CTRL_1, - LP87565_BUCK_CTRL_1_EN, 3230, + LP87565_BUCK_CTRL_1_EN | + LP87565_BUCK_CTRL_1_FPWM_MP_0_2, 3230, buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2), LP87565_REGULATOR("BUCK23", LP87565_BUCK_23, "buck23", lp87565_buck_ops, 256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET, -- 1.9.1