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

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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: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20241104200848.58693-2-hdegoede@redhat.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Hans de Goede
2024-11-04 21:08:46 +01:00
committed by Ilpo Järvinen
parent 44ed58e579
commit 01fbfcb3ac
1 changed files with 16 additions and 9 deletions
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25
drivers/platform/x86/x86-android-tablets/core.c
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@@ -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;