Commit 971c3313 authored by Simon Glass's avatar Simon Glass
Browse files

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.

Series-changes: 2
- Add new patch to add an ioctl to read power-management info
Signed-off-by: Simon Glass's avatarSimon Glass <>
parent 044edd39
......@@ -16,6 +16,9 @@ enum pch_req_t {
/* Returns HDA config info if Azalia V1CTL enabled, -ENOENT if not */
/* Fills out a struct pch_pmbase_info if available */
PCH_REQ_TEST1, /* Test requests for sandbox driver */
......@@ -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
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