From: Tao Ren rentao.bupt@gmail.com
commit f38963b9cd0645a336cf30c5da2e89e34e34fec3 upstream.
Skip status check for both pfe1100 and pfe3000 because the communication error is also observed on pfe1100 devices.
Signed-off-by: Tao Ren rentao.bupt@gmail.com Fixes: 626bb2f3fb3c hwmon: (pmbus) add driver for BEL PFE1100 and PFE3000 Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230804221403.28931-1-rentao.bupt@gmail.com Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hwmon/pmbus/bel-pfe.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/hwmon/pmbus/bel-pfe.c +++ b/drivers/hwmon/pmbus/bel-pfe.c @@ -17,12 +17,13 @@ enum chips {pfe1100, pfe3000};
/* - * Disable status check for pfe3000 devices, because some devices report - * communication error (invalid command) for VOUT_MODE command (0x20) - * although correct VOUT_MODE (0x16) is returned: it leads to incorrect - * exponent in linear mode. + * Disable status check because some devices report communication error + * (invalid command) for VOUT_MODE command (0x20) although the correct + * VOUT_MODE (0x16) is returned: it leads to incorrect exponent in linear + * mode. + * This affects both pfe3000 and pfe1100. */ -static struct pmbus_platform_data pfe3000_plat_data = { +static struct pmbus_platform_data pfe_plat_data = { .flags = PMBUS_SKIP_STATUS_CHECK, };
@@ -94,16 +95,15 @@ static int pfe_pmbus_probe(struct i2c_cl int model;
model = (int)i2c_match_id(pfe_device_id, client)->driver_data; + client->dev.platform_data = &pfe_plat_data;
/* * PFE3000-12-069RA devices may not stay in page 0 during device * probe which leads to probe failure (read status word failed). * So let's set the device to page 0 at the beginning. */ - if (model == pfe3000) { - client->dev.platform_data = &pfe3000_plat_data; + if (model == pfe3000) i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0); - }
return pmbus_do_probe(client, &pfe_driver_info[model]); }