linux-kernel - [PATCH 4.20 029/183] mfd: bd9571mwv: Add volatile register to make DVFS work

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Message-Id: <20190225195059.601859829@linuxfoundation.org>
Date:   Mon, 25 Feb 2019 22:10:02 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dien Pham <dien.pham.ry@...esas.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.20 029/183] mfd: bd9571mwv: Add volatile register to make DVFS work

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit b0aff01e7aa6ad2d6998ef1323843212d1db8b04 ]

Because BD9571MWV_DVFS_MONIVDAC is not defined in the volatile table,
the physical register value is not updated by regmap and DVFS doesn't
work as expected. Fix it!

Fixes: d3ea21272094 ("mfd: Add ROHM BD9571MWV-M MFD PMIC driver")
Signed-off-by: Dien Pham <dien.pham.ry@...esas.com>
[wsa: rebase, add 'Fixes', reword commit message]
Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
Reviewed-by: Marek Vasut <marek.vasut@...il.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mfd/bd9571mwv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c
index 503979c81dae1..fab3cdc27ed64 100644
--- a/drivers/mfd/bd9571mwv.c
+++ b/drivers/mfd/bd9571mwv.c
@@ -59,6 +59,7 @@ static const struct regmap_access_table bd9571mwv_writable_table = {
 };
 
 static const struct regmap_range bd9571mwv_volatile_yes_ranges[] = {
+	regmap_reg_range(BD9571MWV_DVFS_MONIVDAC, BD9571MWV_DVFS_MONIVDAC),
 	regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
 	regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT),
 	regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ),
-- 
2.19.1