kernel/git/next/linux-next.git/drivers/soc/mediatek/mtk-mutex.c, branch master

soc: mediatek: Use pkt_write function pointer for subsys ID compatibility

2026-05-11T09:15:07+00:00

Switch to pkt_write and reg_write_mask function pointers for register access, enabling compatibility with platforms regardless of subsys ID support. Signed-off-by: Jason-JH Lin Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: mtk-mutex: Fix confusing usage of MUTEX_MOD2

2025-06-25T13:59:00+00:00

The usage of MUTEX_MOD1 and MUTEX_MOD2 for calculating mod settings over 32 has been confusing. To improve consistency and clarity, these defines need to fit into the same MUTEX_MOD define as possible. However, MUTEX_MOD1 cannot be directly used for all SoCs because, for example, the mod1 register (0x34) of MT2712 is not adjacent to its mod0 register (0x2c). To address this, a `mutex_mod1_reg` field is introduced in the mutex driver data structure. This allows all SoCs to use a unified MUTEX_MOD to determine their register offsets. With this change, the separate usage of MUTEX_MOD1 and MUTEX_MOD2 is eliminated, simplifying the logic for obtaining offsets and mod IDs. Signed-off-by: Jason-JH Lin Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20250624103928.408194-1-jason-jh.lin@mediatek.com Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: mtk-mutex: Add DPI1 SOF/EOF to MT8188 mutex tables

2025-03-06T10:54:19+00:00

MT8188 uses DPI1 to output to the HDMI controller: add the Start of Frame and End of Frame configuration for the DPI1 IP to the tables to unblock generation and sending of these signals to the GCE. Link: https://lore.kernel.org/r/20250212100012.33001-2-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: mtk-mutex: Reduce type size for mtk_mutex_data members

2024-07-30T08:58:46+00:00

All of mutex_mod and mutex_table_mod contain an array of bit numbers, which can go from 0 to 63, it is hence not needed to use an unsigned 32-bits integer to store that: change them to unsigned 8-bits instead. As for the mutex_sof table since this directly contains the values to write to the DISP_MUTEXn_CTL register, which has only bits [13:0] (so this register is effectively 14 bits long), change that to use unsigned 16-bits. The type of mutex_{mod,sof}_reg was also changed to 16 bits, as the maximum value that those will ever have is 0x800, because it calculates as 0x30 + (0x20 * n) where n's maximum value is 63. This reduces module size and brings no functional changes. Before: text data bss dec hex filename 9929 512 0 10441 28c9 mtk-mutex.o After: text data bss dec hex filename 7425 512 0 7937 1f01 mtk-mutex.o Link: https://lore.kernel.org/r/20240729122538.989855-1-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: mtk-mutex: Add MDP_TCC0 mod to MT8188 mutex table

2024-06-27T10:41:50+00:00

MT8188's MDP3 is able to use MDP_TCC0, this mutex_mod bit does actually exist and it's the same as MT8195: add it to the table. Fixes: 26bb17dae6fa ("soc: mediatek: mtk-mutex: Add support for MT8188 VPPSYS") Reviewed-by: Fei Shao Link: https://lore.kernel.org/r/20240619103034.110377-1-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: mtk-mutex: Add support for MT8188 VPPSYS

2024-04-23T10:16:56+00:00

Add MT8188 VPPSYS0 and VPPSYS1 mutex info to driver data Link: https://lore.kernel.org/r/20240322092845.381313-3-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: Support MT8188 VDOSYS1 Padding in mtk-mmsys

2023-12-11T10:36:12+00:00

- Add Padding components - Add Mutex module definitions for Padding Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Hsiao Chien Sung Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: Support MT8188 VDOSYS1 in mtk-mmsys

2023-12-11T10:36:11+00:00

- Add register definitions for MT8188 - Add VDOSYS1 routing table - Update MUTEX definitions accordingly - Set VSYNC length from 0x40 (default) to 1 since ETHDR is bypassed Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Hsiao Chien Sung Signed-off-by: AngeloGioacchino Del Regno

soc: mediatek: Explicitly include correct DT includes

2023-08-12T08:31:01+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230803-dt-header-cleanups-for-soc-v2-19-d8de2cc88bff@kernel.org Signed-off-by: Arnd Bergmann

soc: mediatek: mtk-mutex: Remove unnecessary .owner

2023-05-29T15:30:37+00:00

Remove .owner field if calls are used which set it automatically. ./drivers/soc/mediatek/mtk-mutex.c:1054:3-8: No need to set .owner here. The core will do it. Reported-by: Abaci Robot Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4869 Signed-off-by: Jiapeng Chong Link: https://lore.kernel.org/r/20230505061950.25977-1-jiapeng.chong@linux.alibaba.com Signed-off-by: Matthias Brugger