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Subject[PATCH v2] hwmon: (pmbus/bel-pfe) Enable PMBUS_SKIP_STATUS_CHECK for pfe1100
Date
From: Tao Ren <rentao.bupt@gmail.com>

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>
---
Changes in v2:
- improving comments.
- removing unnecessary {}

drivers/hwmon/pmbus/bel-pfe.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/pmbus/bel-pfe.c b/drivers/hwmon/pmbus/bel-pfe.c
index fa5070ae26bc..7c5f4b10a7c1 100644
--- 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_client *client)
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]);
}
--
2.40.1
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