From b69b603bcdeb05f846f76da81e4a681aff6a1001 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 25 Apr 2019 21:59:01 -0600 Subject: [PATCH] x86: pch: Add an ioctl to read power-management info Add a new ioctl() request to read information about the power-management system. This can be used to power off the device. Signed-off-by: Simon Glass Reviewed-by: Bin Meng --- include/pch.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/pch.h b/include/pch.h index 046a5fde3a..0b44b66df9 100644 --- a/include/pch.h +++ b/include/pch.h @@ -16,6 +16,9 @@ enum pch_req_t { /* Returns HDA config info if Azalia V1CTL enabled, -ENOENT if not */ PCH_REQ_HDA_CONFIG, + /* Fills out a struct pch_pmbase_info if available */ + PCH_REQ_PMBASE_INFO, + PCH_REQ_TEST1, /* Test requests for sandbox driver */ PCH_REQ_TEST2, PCH_REQ_TEST3, @@ -23,6 +26,21 @@ enum pch_req_t { PCH_REQ_COUNT, /* Number of ioctrls supported */ }; +/** + * struct pch_pmbase_info - Information filled in by PCH_REQ_PMBASE_INFO + * + * @pmbase: IO address of power-management controller + * @gpio0_en_ofs: Offset of GPIO0 enable register + * @pm1_sts_ofs: Offset of status register + * @pm1_cnt_ofs: Offset of control register + */ +struct pch_pmbase_info { + u16 base; + u8 gpio0_en_ofs; + u8 pm1_sts_ofs; + u8 pm1_cnt_ofs; +}; + /** * struct pch_ops - Operations for the Platform Controller Hub * -- 2.25.1