linux-kernel - [PATCH 1/2] mfd: da9062: Make vbuck

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Message-Id: <20211124070001.2516750-1-andrej.picej@norik.com>
Date:   Wed, 24 Nov 2021 08:00:00 +0100
From:   Andrej Picej <andrej.picej@...ik.com>
To:     support.opensource@...semi.com, lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org, andrej.picej@...ik.com,
        s.riedmueller@...tec.de
Subject: [PATCH 1/2] mfd: da9062: Make vbuck_a registers volatile

From: Stefan Riedmueller <s.riedmueller@...tec.de>

The VBUCK1_A, VBUCK2_A, VBUCK3_A and VBUCK4_A registers are used to set the
desired output voltage of the BUCK 1-4 buck regulators. These values can be
critical if used as input for core voltages. Thus make them volatile so
they do not get cached.

Signed-off-by: Stefan Riedmueller <s.riedmueller@...tec.de>
Signed-off-by: Andrej Picej <andrej.picej@...ik.com>
---
 drivers/mfd/da9062-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
index 2774b2cbaea6..c0dad5461946 100644
--- a/drivers/mfd/da9062-core.c
+++ b/drivers/mfd/da9062-core.c
@@ -572,6 +572,8 @@ static const struct regmap_range da9062_aa_volatile_ranges[] = {
 	regmap_reg_range(DA9062AA_COUNT_S, DA9062AA_SECOND_D),
 	regmap_reg_range(DA9062AA_SEQ, DA9062AA_SEQ),
 	regmap_reg_range(DA9062AA_EN_32K, DA9062AA_EN_32K),
+	regmap_reg_range(DA9062AA_VBUCK2_A, DA9062AA_VBUCK2_A),
+	regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
 };
 
 static const struct regmap_access_table da9062_aa_readable_table = {
-- 
2.25.1