ACPI / APD: Add APM X-Gene ACPI I2C device support
Add APM X-Gene ACPI I2C device support by hooks into existent ACPI APD driver. To fully enable support, require another patch to add the X-Gene ACPI node into the DW I2C driver. Signed-off-by: Loc Ho <lho@apm.com> Reviewed-by: Ken Xue <Ken.Xue@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -51,7 +51,7 @@ struct apd_private_data {
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const struct apd_device_desc *dev_desc;
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};
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#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE
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#if defined(CONFIG_X86_AMD_PLATFORM_DEVICE) || defined(CONFIG_ARM64)
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#define APD_ADDR(desc) ((unsigned long)&desc)
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static int acpi_apd_setup(struct apd_private_data *pdata)
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@ -71,6 +71,7 @@ static int acpi_apd_setup(struct apd_private_data *pdata)
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return 0;
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}
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#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE
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static struct apd_device_desc cz_i2c_desc = {
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.setup = acpi_apd_setup,
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.fixed_clk_rate = 133000000,
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@ -80,6 +81,14 @@ static struct apd_device_desc cz_uart_desc = {
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.setup = acpi_apd_setup,
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.fixed_clk_rate = 48000000,
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};
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#endif
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#ifdef CONFIG_ARM64
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static struct apd_device_desc xgene_i2c_desc = {
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.setup = acpi_apd_setup,
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.fixed_clk_rate = 100000000,
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};
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#endif
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#else
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@ -132,9 +141,14 @@ static int acpi_apd_create_device(struct acpi_device *adev,
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static const struct acpi_device_id acpi_apd_device_ids[] = {
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/* Generic apd devices */
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#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE
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{ "AMD0010", APD_ADDR(cz_i2c_desc) },
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{ "AMD0020", APD_ADDR(cz_uart_desc) },
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{ "AMD0030", },
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#endif
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#ifdef CONFIG_ARM64
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{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
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#endif
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{ }
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};
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