diff options
| author | Chen Pei <cp0613@linux.alibaba.com> | 2025-09-10 17:41:36 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-09-15 21:37:40 +0200 |
| commit | bf4206d7ac278bbd1eb2cf02d25486c2cc61b298 (patch) | |
| tree | b1ea6b480328da534113d9f94307db75432706c9 | |
| parent | f83ec76bf285bea5727f478a68b894f5543ca76e (diff) | |
ACPI: SPCR: Add support for DBG2 RISC-V SBI port subtype
Commit 4aca2bef90bd1296 ("ACPICA: Headers: Add RISC-V SBI Subtype to
DBG2") added the definition of ACPI_DBG2_RISCV_SBI_CON.
Continue to implement its function so that the parameters of UART can
be configured correctly.
Subsequent calls to setup_earlycon() will reuse the earlycon based on
SBI.
Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>
Reviewed-by: Guo Ren (Alibaba Damo Academy) <guoren@kernel.org>
Link: https://patch.msgid.link/20250910094136.4423-1-cp0613@linux.alibaba.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/spcr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c index cd36a97b0ea2..208d6bbc65e0 100644 --- a/drivers/acpi/spcr.c +++ b/drivers/acpi/spcr.c @@ -141,6 +141,9 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console) case ACPI_DBG2_16550_NVIDIA: uart = "uart"; break; + case ACPI_DBG2_RISCV_SBI_CON: + uart = "sbi"; + break; default: err = -ENOENT; goto done; |