Commit 8bc0f408 authored Feb 13, 2023 by Eliav Farber Committed by Jialin Zhang Feb 13, 2023

hwmon: (mr75203) enable polling for all VM channels

stable inclusion
from stable-v5.10.143
commit 202341395ce3af1eb08469ae53bc1d591cb7f1bb
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0U6

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=202341395ce3af1eb08469ae53bc1d591cb7f1bb



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

[ Upstream commit e43212e0 ]

Configure ip-polling register to enable polling for all voltage monitor
channels.
This enables reading the voltage values for all inputs other than just
input 0.

Fixes: 9d823351 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-7-farbere@amazon.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>

parent fa0c3f7c

drivers/hwmon/mr75203.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -398,6 +398,19 @@ static int pvt_init(struct pvt_device *pvt)
		if (ret)
		return ret;

		val = (BIT(pvt->c_num) - 1) \| VM_CH_INIT \|
		IP_POLL << SDIF_ADDR_SFT \| SDIF_WRN_W \| SDIF_PROG;
		ret = regmap_write(v_map, SDIF_W, val);
		if (ret < 0)
		return ret;

		ret = regmap_read_poll_timeout(v_map, SDIF_STAT,
		val, !(val & SDIF_BUSY),
		PVT_POLL_DELAY_US,
		PVT_POLL_TIMEOUT_US);
		if (ret)
		return ret;

		val = CFG1_VOL_MEAS_MODE \| CFG1_PARALLEL_OUT \|
		CFG1_14_BIT \| IP_CFG << SDIF_ADDR_SFT \|
		SDIF_WRN_W \| SDIF_PROG;