hwmon: (mr75203) fix wrong power-up delay value

[ 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>

diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c
index 868243d..1ba1e31 100644 (file)
--- 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