Hi all,

This patch series adds support for the Realtek ALC5575 audio codec.

Changes in v11: - Patch 1/4: - minor fixes - Patch 2/4: - change of_find_spi_controller_by_node() gating to CONFIG_OF - Patch 3/4: - nothing - Patch 4/4: - achieve reverse-christmas-tree notation - remove formal version check - revise check whether the firmware boots from SPI or not - minor fixes

Changes in v10: - Patch 1/3: - export of_find_spi_controller_by_node() - Patch 2/3: - remove realtek,rt5575-use-spi - add spi-parent for firmware-loading - Patch 3/3: - use of_find_spi_controller_by_node() to get the SPI controller and add the spi device for firmware-loading - Link to v10: https://lore.kernel.org/all/20251216071853.3929135-1-oder_chiou@realtek.com/

Changes in v9: - Patch 1/2: - modify the comment - change the compatible name to "realtek,rt5575-use-spi" - Patch 2/2: - remove the standalone rt5575_spi_driver module and integrate its functionality into the I2C driver - move the SPI firmware-loading function to rt5575-spi.c - use the match data to distinguish between w/wo flash - minor fixes - Link to v9: https://lore.kernel.org/all/20251211110130.2925541-1-oder_chiou@realtek.com/

Changes in v8: - Patch 1/2: - remove the variable rt5575_spi_ready - use the multiple compatible names to distinguish between w/wo flash - Patch 2/2: - add compatible enum "realtek,rt5575-with-spi" - Link to v8: https://lore.kernel.org/all/20251201105926.1714341-1-oder_chiou@realtek.com/

Changes in v7: - Patch 1/2: - add a caption for the tristates - remove the redundant enum of the SPI command - add the error log in the request firmware failure - change the function name rt5575_spi_fw_loaded to rt5575_fw_load_by_spi - minor fixes - Patch 2/2: - modify commit message - Link to v7: https://lore.kernel.org/all/20251121084112.743518-1-oder_chiou@realtek.com/

Changes in v6: - Patch 1/2: - modify commit message - add select SND_SOC_RT5575 to config SND_SOC_RT5575_SPI in the Kconfig - revise the boiler plate in the head of the file - sort the include files - use a structure to transfer the spi data - use the poll() related function instead the for-loop - revise the UUID to the private ID - minor fixes - Patch 2/2: - modify description - Link to v6: https://lore.kernel.org/all/20251031073245.3629060-1-oder_chiou@realtek.com/

Changes in v2 to v5: - Patch 1/2: - move the firmware to the subdirectory - remove the empty functions - remove the cache_type in the regmap_config - add the error log in the run firmware failure - Patch 2/2: - nothing - Link to v5: https://lore.kernel.org/all/20251015103404.3075684-1-oder_chiou@realtek.com/

Oder Chiou (4): spi: export of_find_spi_controller_by_node() spi: change of_find_spi_controller_by_node() gating to CONFIG_OF ASoC: dt-bindings: realtek,rt5575: add support for ALC5575 ASoC: rt5575: Add the codec driver for the ALC5575

.../bindings/sound/realtek,rt5575.yaml | 61 +++ drivers/spi/spi.c | 23 +- include/linux/spi/spi.h | 9 + sound/soc/codecs/Kconfig | 10 + sound/soc/codecs/Makefile | 3 + sound/soc/codecs/rt5575-spi.c | 118 ++++++ sound/soc/codecs/rt5575-spi.h | 27 ++ sound/soc/codecs/rt5575.c | 352 ++++++++++++++++++ sound/soc/codecs/rt5575.h | 58 +++ 9 files changed, 651 insertions(+), 10 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/realtek,rt5575.yaml create mode 100644 sound/soc/codecs/rt5575-spi.c create mode 100644 sound/soc/codecs/rt5575-spi.h create mode 100644 sound/soc/codecs/rt5575.c create mode 100644 sound/soc/codecs/rt5575.h