5.15-stable review patch. If anyone has any objections, please let me know.
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From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit aea672d054a21782ed8450c75febb6ba3c208ca4 ]
The proposed spi_get_device_match_data() helper is for retrieving a driver data associated with the ID in an ID table. First, it tries to get driver data of the device enumerated by firmware interface (usually Device Tree or ACPI). If none is found it falls back to the SPI ID table matching.
Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Link: https://lore.kernel.org/r/20221020195421.10482-1-andriy.shevchenko@linux.int... Signed-off-by: Mark Brown broonie@kernel.org Stable-dep-of: ee4d79055aee ("iio: imu: adis16475: add spi_device_id table") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi.c | 12 ++++++++++++ include/linux/spi/spi.h | 3 +++ 2 files changed, 15 insertions(+)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 06dd1be54925e..d4b186a35bb22 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -335,6 +335,18 @@ const struct spi_device_id *spi_get_device_id(const struct spi_device *sdev) } EXPORT_SYMBOL_GPL(spi_get_device_id);
+const void *spi_get_device_match_data(const struct spi_device *sdev) +{ + const void *match; + + match = device_get_match_data(&sdev->dev); + if (match) + return match; + + return (const void *)spi_get_device_id(sdev)->driver_data; +} +EXPORT_SYMBOL_GPL(spi_get_device_match_data); + static int spi_match_device(struct device *dev, struct device_driver *drv) { const struct spi_device *spi = to_spi_device(dev); diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 6b0b686f6f904..9ab3dab9568ae 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -1499,6 +1499,9 @@ extern void spi_unregister_device(struct spi_device *spi); extern const struct spi_device_id * spi_get_device_id(const struct spi_device *sdev);
+extern const void * +spi_get_device_match_data(const struct spi_device *sdev); + static inline bool spi_transfer_is_last(struct spi_controller *ctlr, struct spi_transfer *xfer) {