kernel/git/stable/linux.git/drivers/reset/reset-meson.c, branch master

reset: amlogic: move drivers to a dedicated directory

2024-10-01T08:40:32+00:00

The meson reset driver will be split in two part, one implemeting the ops, the other providing the platform driver support. This will be done to facilitate the addition of the auxiliary bus support. To avoid making a mess in drivers/reset/ while doing so, move the amlogic reset drivers to a dedicated directory. Reviewed-by: Neil Armstrong Signed-off-by: Jerome Brunet Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-7-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: amlogic: add reset status support

2024-10-01T08:40:32+00:00

Add a callback to check the status of the level reset, as done in the reset driver of the audio clock controller. This is done keep the functionality when the audio reset controller get migrated to meson-reset. Reviewed-by: Neil Armstrong Signed-off-by: Jerome Brunet Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-6-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: amlogic: use reset number instead of register count

2024-10-01T08:40:32+00:00

The reset driver from audio clock controller may register less reset than a register can hold. To avoid making any change while switching to auxiliary support, use the number of reset instead of the register count to define the bounds of the reset controller. Reviewed-by: Neil Armstrong Signed-off-by: Jerome Brunet Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-5-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: amlogic: add driver parameters

2024-10-01T08:40:32+00:00

To allow using the same driver for the main reset controller and the auxiliary ones embedded in the clock controllers, allow to customise the reset offset, same as the level offset. Also add an option to make the level reset active low or high. Signed-off-by: Jerome Brunet Reviewed-by: Neil Armstrong Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-4-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: amlogic: make parameters unsigned

2024-10-01T08:40:32+00:00

register count and offset cannot be negative. Use unsigned integer for this. Suggested-by: Stephen Boyd Reviewed-by: Neil Armstrong Signed-off-by: Jerome Brunet Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-3-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: amlogic: use generic data matching function

2024-10-01T08:40:32+00:00

There is no need to use the DT specific function to get matching data, use the generic one instead Suggested-by: Stephen Boyd Reviewed-by: Neil Armstrong Signed-off-by: Jerome Brunet Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-2-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: amlogic: convert driver to regmap

2024-10-01T08:40:32+00:00

To allow using the same driver for the main reset controller and the auxiliary ones embedded in the clock controllers, convert the the Amlogic reset driver to regmap. Reviewed-by: Neil Armstrong Signed-off-by: Jerome Brunet Reviewed-by: Philipp Zabel Link: https://lore.kernel.org/r/20240910-meson-rst-aux-v5-1-60be62635d3e@baylibre.com Signed-off-by: Philipp Zabel

reset: reset-meson: Add support for Amlogic T7 SoC reset controller

2024-09-02T10:09:17+00:00

There are 7 sets of Reset Source in Amlogic T7 SoC reset controller, and the offset between base and level registers is 0x40. Add a new compatible string and struct meson_reset_param to support the reset controller on T7 SoC. Signed-off-by: Zelong Dong Signed-off-by: Kelvin Zhang Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20240422-t7-reset-v2-2-cb82271d3296@amlogic.com Signed-off-by: Philipp Zabel

reset: reset-meson: add support for Amlogic C3 SoC Reset Controller

2023-11-28T16:21:59+00:00

Add a new compatible string to support for the reset controller on the C3 SoC. The count and offset for C3 Soc RESET registers are same as S4 Soc. Signed-off-by: Zelong Dong Reviewed-by: Dmitry Rokosov Reviewed-by: Martin Blumenstingl Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20230914064018.18790-3-zelong.dong@amlogic.com Signed-off-by: Philipp Zabel

reset: meson: remove unneeded call to platform_set_drvdata()

2023-08-08T13:31:00+00:00

This function call was found to be unnecessary as there is no equivalent platform_get_drvdata() call to access the private data of the driver. Also, the private data is defined in this driver, so there is no risk of it being accessed outside of this driver file. Reviewed-by: Alexandru Ardelean Signed-off-by: Andrei Coardos Link: https://lore.kernel.org/r/20230807105400.11560-1-aboutphysycs@gmail.com Signed-off-by: Philipp Zabel