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[5.10,198/563] hwmon: (mr75203) fix wrong power-up delay value

Message ID 20220124184031.278058490@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 24, 2022, 6:39 p.m. UTC 
From: Arseny Demidov <arsdemal@gmail.com>

[ Upstream commit a8d6d4992ad9d92356619ac372906bd29687bb46 ]

In the file mr75203.c we have a macro named POWER_DELAY_CYCLE_256,
the correct value should be 0x100. The register ip_tmr is expressed
in units of IP clk cycles, in accordance with the datasheet.
Typical power-up delays for Temperature Sensor are 256 cycles i.e. 0x100.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Arseny Demidov <a.demidov@yadro.com>
Link: https://lore.kernel.org/r/20211219102239.1112-1-a.demidov@yadro.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/mr75203.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c
index 18da5a25e89ab..046523d47c29b 100644
--- a/drivers/hwmon/mr75203.c
+++ b/drivers/hwmon/mr75203.c
@@ -93,7 +93,7 @@ 
 #define VM_CH_REQ	BIT(21)
 
 #define IP_TMR			0x05
-#define POWER_DELAY_CYCLE_256	0x80
+#define POWER_DELAY_CYCLE_256	0x100
 #define POWER_DELAY_CYCLE_64	0x40
 
 #define PVT_POLL_DELAY_US	20