Re: [PATCH 2.6.32.3] i2c-i801: SMBus patch for Intel Cougar PointDeviceIDs

From: Jean Delvare
Date: Tue Jan 19 2010 - 06:00:51 EST


Hi Seth,

Please note that the i2c mailing list address has changed.

On Tue, 12 Jan 2010 16:58:53 -0800, Seth Heasley wrote:
> This patch adds the Intel Cougar Point (PCH) SMBus Controller DeviceIDs.

This comment suggests that Cougar Point == PCH, while the comments in
i2c-i801 suggests otherwise. Who is right?

>
> Signed-off-by: Seth Heasley <seth.heasley@xxxxxxxxx>
>
> --- linux-2.6.32.3/drivers/i2c/busses/i2c-i801.c.orig 2010-01-06 15:07:45.000000000 -0800
> +++ linux-2.6.32.3/drivers/i2c/busses/i2c-i801.c 2010-01-07 13:10:28.000000000 -0800
> @@ -41,7 +41,8 @@
> Tolapai 0x5032 32 hard yes yes yes
> ICH10 0x3a30 32 hard yes yes yes
> ICH10 0x3a60 32 hard yes yes yes
> - PCH 0x3b30 32 hard yes yes yes
> + 3400/5 Series (PCH) 0x3b30 32 hard yes yes yes
> + CPT 0x1c22 32 hard yes yes yes
>
> Features supported by this driver:
> Software PEC no
> @@ -578,6 +579,7 @@
> { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_4) },
> { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_5) },
> { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PCH_SMBUS) },
> + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CPT_SMBUS) },
> { 0, }
> };
>
> @@ -707,6 +709,7 @@
> case PCI_DEVICE_ID_INTEL_ICH10_4:
> case PCI_DEVICE_ID_INTEL_ICH10_5:
> case PCI_DEVICE_ID_INTEL_PCH_SMBUS:
> + case PCI_DEVICE_ID_INTEL_CPT_SMBUS:
> i801_features |= FEATURE_I2C_BLOCK_READ;
> /* fall through */
> case PCI_DEVICE_ID_INTEL_82801DB_3:
> --- linux-2.6.32.3/drivers/i2c/busses/Kconfig.orig 2010-01-06 15:07:45.000000000 -0800
> +++ linux-2.6.32.3/drivers/i2c/busses/Kconfig 2010-01-07 13:10:28.000000000 -0800
> @@ -98,6 +98,7 @@
> Tolapai
> ICH10
> PCH
> + CPT

It might be clear for you that "CPT" means "Cougar Point", but for the
reader it may not be. I'd rather list the full chip name. Same in
i2c-i801.c's header comment, BTW.

>
> This driver can also be built as a module. If so, the module
> will be called i2c-i801.

Documentation/i2c/busses/i2c-i801 needs to be updated as well.

--
Jean Delvare
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