Re: [PATCH 2/5] i2c: i801: Create iTCO device on newer Intel PCHs

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On Mon, 27 Jul, at 07:08:08AM, Guenter Roeck wrote:
> >@@ -113,6 +114,16 @@
> >  #define SMBPCICTL	0x004
> >  #define SMBPCISTS	0x006
> >  #define SMBHSTCFG	0x040
> >+#define TCOBASE		0x050
> >+#define TCOCTL		0x054
> >+
> >+#define ACPIBASE		0x040
> >+#define ACPIBASE_SMI_OFF	0x030
> >+#define ACPICTRL		0x044
> >+#define ACPICTRL_EN		BIT(7)
> 
> If you use BIT, you should include bitops.h.
> Not sure if that makes too much sense here, though, without converting
> the rest of the driver to use BIT as well.
 
OK, I'll just switch to the existing notation used throughout the
driver rather than using bitops.

> >+static void i801_del_tco(struct i801_priv *priv)
> >+{
> >+	if (priv->tco_pdev) {
> 
> platform_device_unregister() handles NULL pointers, so this if statement
> is strictly speaking unnecessary.
 
Good point, I'll remove this check since it makes the code simpler too.

> >+		platform_device_unregister(priv->tco_pdev);
> >+		priv->tco_pdev = NULL;
> 
> Unnecessary; priv is going to be freed right afterwards.
 
I'll drop this.

-- 
Matt Fleming, Intel Open Source Technology Center
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