diff options
| author | William A. Kennington III <william@wkennington.com> | 2026-05-27 20:09:51 +0000 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@kernel.org> | 2026-05-29 00:39:08 +0200 |
| commit | 0a1b80e9db9db571d48d0f8cf2a7b31270950068 (patch) | |
| tree | 84761e2419f369e35cbf78e5f1182c1f49fdf841 /drivers/i2c | |
| parent | 42b4f04a2f825c88c723985ac2b61baf97590da1 (diff) | |
i2c: designware: Convert platform driver to use shutdown hook
Convert the platform driver to use the new i2c_dw_shutdown() hook,
allowing the controller to gracefully NACK controllers requests during
system shutdown.
Signed-off-by: William A. Kennington III <william@wkennington.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260527-dw-i2c-v5-3-3483057f8d67@wkennington.com
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-platdrv.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 3351c4a9ef11..da2babd6188b 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -289,9 +289,23 @@ static const struct platform_device_id dw_i2c_platform_ids[] = { }; MODULE_DEVICE_TABLE(platform, dw_i2c_platform_ids); +static void dw_i2c_plat_shutdown(struct platform_device *pdev) +{ + struct dw_i2c_dev *i_dev; + + i_dev = platform_get_drvdata(pdev); + if (!i_dev) + return; + + pm_runtime_disable(&pdev->dev); + if (!pm_runtime_status_suspended(&pdev->dev)) + i2c_dw_shutdown(i_dev); +} + static struct platform_driver dw_i2c_driver = { .probe = dw_i2c_plat_probe, .remove = dw_i2c_plat_remove, + .shutdown = dw_i2c_plat_shutdown, .driver = { .name = "i2c_designware", .of_match_table = dw_i2c_of_match, |