diff options
| author | Andy Shevchenko | 2018-08-30 18:27:36 +0200 |
|---|---|---|
| committer | Linus Walleij | 2018-08-31 11:24:37 +0200 |
| commit | 924cf800574ffd53469d245637607a8b0768ad69 (patch) | |
| tree | 110c0e6885e543dfda97e788d385e406366c5c30 /drivers/pinctrl/intel | |
| parent | Merge branch 'ib-ingenic' into devel (diff) | |
| download | kernel-qcow2-linux-924cf800574ffd53469d245637607a8b0768ad69.tar.gz kernel-qcow2-linux-924cf800574ffd53469d245637607a8b0768ad69.tar.xz kernel-qcow2-linux-924cf800574ffd53469d245637607a8b0768ad69.zip | |
pinctrl: intel: Introduce intel_pinctrl_probe_by_uid() internal API
Introduce intel_pinctrl_probe_by_uid() internal API to simplify drivers,
which are using ACPI _UID to distinguish which SoC data needs to be used
when being probed.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/intel')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 38 | ||||
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.h | 2 |
2 files changed, 40 insertions, 0 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index a356a5b8bab2..ea2cc0a72b67 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -7,11 +7,14 @@ * Mika Westerberg <mika.westerberg@linux.intel.com> */ +#include <linux/acpi.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/gpio/driver.h> #include <linux/log2.h> #include <linux/platform_device.h> +#include <linux/property.h> + #include <linux/pinctrl/pinctrl.h> #include <linux/pinctrl/pinmux.h> #include <linux/pinctrl/pinconf.h> @@ -1415,6 +1418,41 @@ int intel_pinctrl_probe(struct platform_device *pdev, } EXPORT_SYMBOL_GPL(intel_pinctrl_probe); +int intel_pinctrl_probe_by_uid(struct platform_device *pdev) +{ + const struct intel_pinctrl_soc_data *data = NULL; + const struct intel_pinctrl_soc_data **table; + struct acpi_device *adev; + unsigned int i; + + adev = ACPI_COMPANION(&pdev->dev); + if (adev) { + const void *match = device_get_match_data(&pdev->dev); + + table = (const struct intel_pinctrl_soc_data **)match; + for (i = 0; table[i]; i++) { + if (!strcmp(adev->pnp.unique_id, table[i]->uid)) { + data = table[i]; + break; + } + } + } else { + const struct platform_device_id *id; + + id = platform_get_device_id(pdev); + if (!id) + return -ENODEV; + + table = (const struct intel_pinctrl_soc_data **)id->driver_data; + data = table[pdev->id]; + } + if (!data) + return -ENODEV; + + return intel_pinctrl_probe(pdev, data); +} +EXPORT_SYMBOL_GPL(intel_pinctrl_probe_by_uid); + #ifdef CONFIG_PM_SLEEP static bool intel_pinctrl_should_save(struct intel_pinctrl *pctrl, unsigned pin) { diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h index 1785abf157e4..05eaed257cf0 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.h +++ b/drivers/pinctrl/intel/pinctrl-intel.h @@ -173,6 +173,8 @@ struct intel_pinctrl_soc_data { int intel_pinctrl_probe(struct platform_device *pdev, const struct intel_pinctrl_soc_data *soc_data); +int intel_pinctrl_probe_by_uid(struct platform_device *pdev); + #ifdef CONFIG_PM_SLEEP int intel_pinctrl_suspend(struct device *dev); int intel_pinctrl_resume(struct device *dev); |