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drivers: gpio: ignore communication faults of TLE9104 during startup

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Ignore communication faults of the TLE9104 which are reported
before the communication watchdog is configured.

Fixes #67370

Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
This commit is contained in:
Benedikt Schmidt 2024-01-09 13:49:31 +01:00 committed by Carles Cufí
parent 68f8c8ff29
commit cb2e3a86b4
1 changed files with 11 additions and 2 deletions
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13
drivers/gpio/gpio_tle9104.c
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@ -75,6 +75,8 @@ struct tle9104_data {
/* each bit defines if the output channel is configured, see state */
uint8_t configured;
struct k_mutex lock;
/* communication watchdog is getting ignored */
bool cwd_ignore;
};
static void tle9104_set_cfg_cwdtime(uint8_t *destination, uint8_t value)
@ -116,6 +118,7 @@ static int tle9104_transceive_frame(const struct device *dev, bool write,
enum tle9104_register *read_reg, uint8_t *read_data)
{
const struct tle9104_config *config = dev->config;
struct tle9104_data *data = dev->data;
uint16_t write_frame;
uint16_t read_frame;
int result;
@ -160,8 +163,10 @@ static int tle9104_transceive_frame(const struct device *dev, bool write,
return -EIO;
}
if ((TLE9104_SPIFRAME_FAULTCOMMUNICATION_BIT & read_frame) != 0) {
LOG_WRN("communication fault reported by TLE9104");
if (!data->cwd_ignore) {
if ((TLE9104_SPIFRAME_FAULTCOMMUNICATION_BIT & read_frame) != 0) {
LOG_WRN("%s: communication fault reported by TLE9104", dev->name);
}
}
*read_reg = FIELD_GET(GENMASK(TLE9104_FRAME_FAULTGLOBAL_POS - 1, TLE9104_FRAME_ADDRESS_POS),
@ -385,6 +390,8 @@ static int tle9104_init(const struct device *dev)
LOG_DBG("initialize TLE9104 instance %s", dev->name);
data->cwd_ignore = true;
result = k_mutex_init(&data->lock);
if (result != 0) {
LOG_ERR("unable to initialize mutex");
@ -498,6 +505,8 @@ static int tle9104_init(const struct device *dev)
return result;
}
data->cwd_ignore = false;
return 0;
}