Unverified Commit 01fbfcb3 authored by Hans de Goede's avatar Hans de Goede Committed by Ilpo Järvinen
Browse files

platform/x86: x86-android-tablets: Add get_i2c_adap_by_handle() helper 



Add get_i2c_adap_by_handle() helper function, this is a preparation patch
for adding support for getting i2c_adapter-s by PCI parent devname().

Suggested-by: default avatarAndy Shevchenko <andy@kernel.org>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: default avatarAndy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20241104200848.58693-2-hdegoede@redhat.com


Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 44ed58e5

drivers/platform/x86/x86-android-tablets/core.c

+16 −9
Original line number Diff line number Diff line
@@ -155,26 +155,33 @@ static struct gpiod_lookup_table * const *gpiod_lookup_tables; 
static const struct software_node *bat_swnode;

static void (*exit_handler)(void);



static struct i2c_adapter *

get_i2c_adap_by_handle(const struct x86_i2c_client_info *client_info)

{

	acpi_handle handle;

	acpi_status status;



	status = acpi_get_handle(NULL, client_info->adapter_path, &handle);

	if (ACPI_FAILURE(status)) {

		pr_err("Error could not get %s handle\n", client_info->adapter_path);

		return NULL;

	}



	return i2c_acpi_find_adapter_by_handle(handle);

}



static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info,

					     int idx)

{

	const struct x86_i2c_client_info *client_info = &dev_info->i2c_client_info[idx];

	struct i2c_board_info board_info = client_info->board_info;

	struct i2c_adapter *adap;

	acpi_handle handle;

	acpi_status status;



	board_info.irq = x86_acpi_irq_helper_get(&client_info->irq_data);

	if (board_info.irq < 0)

		return board_info.irq;



	status = acpi_get_handle(NULL, client_info->adapter_path, &handle);

	if (ACPI_FAILURE(status)) {

		pr_err("Error could not get %s handle\n", client_info->adapter_path);

		return -ENODEV;

	}



	adap = i2c_acpi_find_adapter_by_handle(handle);

	adap = get_i2c_adap_by_handle(client_info);

	if (!adap) {

		pr_err("error could not get %s adapter\n", client_info->adapter_path);

		return -ENODEV;