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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2024-07-04 05:28:59 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2024-07-10 08:31:59 +0200 |
| commit | 500c20fe3ea4a241f7ea58a414343367ab2e4085 (patch) | |
| tree | cb6802dea56fd2734e2488aa0cfc4dfb527b14ba /drivers/i2c/i2c-core-base.c | |
| parent | 711703013e340caac3e4a6a3a605324691292621 (diff) | |
| download | linux-500c20fe3ea4a241f7ea58a414343367ab2e4085.tar.gz linux-500c20fe3ea4a241f7ea58a414343367ab2e4085.tar.bz2 linux-500c20fe3ea4a241f7ea58a414343367ab2e4085.zip | |
i2c: add debug message for detected HostNotify alerts
Setting up HostNotify can be tricky. Support debugging by stating
when a HostNotify alert was received independent of the irq being
mapped. Especially useful with the in-kernel i2c testunit. Update
documentation as well.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Diffstat (limited to 'drivers/i2c/i2c-core-base.c')
| -rw-r--r-- | drivers/i2c/i2c-core-base.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 49fdcb3eb8f6..a5fce479ab13 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -1468,6 +1468,8 @@ int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr) if (!adap) return -EINVAL; + dev_dbg(&adap->dev, "Detected HostNotify from address 0x%02x", addr); + irq = irq_find_mapping(adap->host_notify_domain, addr); if (irq <= 0) return -ENXIO; |