kernel/linux.git/drivers/soc/aspeed, branch v6.19.11

soc: aspeed: socinfo: Add AST27xx silicon IDs

2025-08-11T00:07:53+00:00

Extend the ASPEED SoC info driver to support AST27XX silicon IDs. Signed-off-by: Ryan Chen Link: https://patch.msgid.link/20250807005208.3517283-1-ryan_chen@aspeedtech.com Signed-off-by: Andrew Jeffery

soc: aspeed: Use of_reserved_mem_region_to_resource() for "memory-region"

2025-08-11T00:07:53+00:00

Use the newly added of_reserved_mem_region_to_resource() function to handle "memory-region" properties. The error handling is a bit different. "memory-region" is optional, so failed lookup is not an error. But then an error in of_address_to_resource() is treated as an error. However, that distinction is not really important. Either the region is available and usable or it is not. So now, it is just of_reserved_mem_region_to_resource() which is checked for an error. Signed-off-by: Rob Herring (Arm) Link: https://patch.msgid.link/20250703183508.2074735-1-robh@kernel.org Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Lift channel config to const structs

2025-07-08T02:05:07+00:00

The shifts and masks for each channel are defined by hardware and are not something that changes at runtime. Accordingly, describe the information in an array of const structs and associate elements with each channel instance, removing the need for the switch and handling of its default case. Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-10-3cdd59c934d3@codeconstruct.com.au Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Consolidate channel initialisation

2025-07-08T02:05:07+00:00

Previously, channel initialisation was a bit perilous with respect to resource cleanup in error paths. While the implementation had issues, it at least made an effort to eliminate some of its problems by first testing whether any channels were enabled, and bailing out if not. Having improved the robustness of resource handling in probe() we can now rearrange the initial channel test to be located with the subsequent test, and rework the unrolled conditional logic to use a loop for an improvement in readability. Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-9-3cdd59c934d3@codeconstruct.com.au Acked-by: Jean Delvare Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Use dev_err_probe() where possible

2025-07-08T02:05:07+00:00

Exploit that it returns the provided error to eliminate some lines, and return the actual error involved rather than -ENODEV. Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-8-3cdd59c934d3@codeconstruct.com.au Acked-by: Jean Delvare Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Switch to devm_clk_get_enabled()

2025-07-08T02:05:07+00:00

Simplify clock handling as done in other drivers. Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-7-3cdd59c934d3@codeconstruct.com.au Acked-by: Jean Delvare Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Rearrange channel paths

2025-07-08T02:05:07+00:00

Order assignments such that tests for conditions not involving resource acquisition are ordered before those testing acquired resources, and order managed resource acquisition before unmanaged where possible. This way we minimise the amount of manual cleanup required. In the process, improve readability of the code by introducing a channel pointer that takes the place of the repeated object lookups. Acked-by: Jean Delvare Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-6-3cdd59c934d3@codeconstruct.com.au Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Rename 'channel' to 'index' in channel paths

2025-07-08T02:05:07+00:00

We'll introduce another 'channel' variable shortly Acked-by: Jean Delvare Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-5-3cdd59c934d3@codeconstruct.com.au Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Constrain parameters in channel paths

2025-07-08T02:05:07+00:00

Ensure pointers and the channel index are valid before use. Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-4-3cdd59c934d3@codeconstruct.com.au Signed-off-by: Andrew Jeffery

soc: aspeed: lpc-snoop: Ensure model_data is valid

2025-07-08T02:05:03+00:00

of_device_get_match_data() can return NULL, though shouldn't in current circumstances. Regardless, initialise model_data closer to use so it's clear we need to test for validity prior to dereferencing. Acked-by: Jean Delvare Link: https://patch.msgid.link/20250616-aspeed-lpc-snoop-fixes-v2-3-3cdd59c934d3@codeconstruct.com.au Signed-off-by: Andrew Jeffery