Hello Kamel Bouhara,
The patch 106b104137fd: "counter: Add microchip TCB capture counter"
from Jul 6, 2020, leads to the following static checker warning:
drivers/counter/microchip-tcb-capture.c:188 mchp_tc_count_action_get()
warn: bitwise AND condition is false here
drivers/counter/microchip-tcb-capture.c
176 static int mchp_tc_count_action_get(struct counter_device *counter,
177 struct counter_count *count,
178 struct counter_synapse *synapse,
179 size_t *action)
180 {
181 struct mchp_tc_data *const priv = counter->priv;
182 u32 cmr;
183
184 regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr);
185
186 *action = MCHP_TC_SYNAPSE_ACTION_NONE;
187
188 if (cmr & ATMEL_TC_ETRGEDG_NONE)
ATMEL_TC_ETRGEDG_NONE is zero so this condition is impossible.
189 *action = MCHP_TC_SYNAPSE_ACTION_NONE;
190 else if (cmr & ATMEL_TC_ETRGEDG_RISING)
191 *action = MCHP_TC_SYNAPSE_ACTION_RISING_EDGE;
192 else if (cmr & ATMEL_TC_ETRGEDG_FALLING)
193 *action = MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE;
194 else if (cmr & ATMEL_TC_ETRGEDG_BOTH)
195 *action = MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE;
196
197 return 0;
198 }
regards,
dan carpenter
