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[1/4] i2c: i801: Use i2c_mark_adapter_suspended/resumed

Message ID a2cd5692-7a9e-7fef-6c09-6c694df1b23e@gmail.com
State New
Headers show
Series i2c: i801: next set of improvements | expand

Commit Message

Heiner Kallweit March 4, 2023, 9:31 p.m. UTC 
When entering the shutdown/remove/suspend callbacks, at first we should
ensure that transfers are finished and I2C core can't start further
transfers. Use i2c_mark_adapter_suspended() for this purpose.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/i2c/busses/i2c-i801.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index ac5326747..d6a0c3b53 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1773,6 +1773,8 @@  static void i801_remove(struct pci_dev *dev)
 {
 	struct i801_priv *priv = pci_get_drvdata(dev);
 
+	i2c_mark_adapter_suspended(&priv->adapter);
+
 	outb_p(priv->original_hstcnt, SMBHSTCNT(priv));
 	i801_disable_host_notify(priv);
 	i801_del_mux(priv);
@@ -1796,6 +1798,8 @@  static void i801_shutdown(struct pci_dev *dev)
 {
 	struct i801_priv *priv = pci_get_drvdata(dev);
 
+	i2c_mark_adapter_suspended(&priv->adapter);
+
 	/* Restore config registers to avoid hard hang on some systems */
 	outb_p(priv->original_hstcnt, SMBHSTCNT(priv));
 	i801_disable_host_notify(priv);
@@ -1807,6 +1811,7 @@  static int i801_suspend(struct device *dev)
 {
 	struct i801_priv *priv = dev_get_drvdata(dev);
 
+	i2c_mark_adapter_suspended(&priv->adapter);
 	outb_p(priv->original_hstcnt, SMBHSTCNT(priv));
 	pci_write_config_byte(priv->pci_dev, SMBHSTCFG, priv->original_hstcfg);
 	return 0;
@@ -1818,6 +1823,7 @@  static int i801_resume(struct device *dev)
 
 	i801_setup_hstcfg(priv);
 	i801_enable_host_notify(&priv->adapter);
+	i2c_mark_adapter_resumed(&priv->adapter);
 
 	return 0;
 }