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| author |   Rajan Vaja <rajanv@xilinx.com> | 2018-09-12 12:38:40 -0700 |
|---|---|---|
| committer |   Michal Simek <michal.simek@xilinx.com> | 2018-09-26 08:47:37 +0200 |
| commit | e60f02ddb4d2e29b0eb30dbe55475822c4bf3818 (patch) | |
| tree | 92c013a307636127cd5c19e4466158f812bf2677 /drivers/firmware | |
| parent | firmware: xilinx: Add debugfs interface (diff) | |
| download | linux-dev-e60f02ddb4d2e29b0eb30dbe55475822c4bf3818.tar.xz linux-dev-e60f02ddb4d2e29b0eb30dbe55475822c4bf3818.zip | |
firmware: xilinx: Add debugfs for query data API
Add debugfs file to query platform specific data from firmware
using debugfs interface.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp-debug.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp-debug.c b/drivers/firmware/xilinx/zynqmp-debug.c index d65cfd26b5e7..2771df6df379 100644 --- a/drivers/firmware/xilinx/zynqmp-debug.c +++ b/drivers/firmware/xilinx/zynqmp-debug.c @@ -32,6 +32,7 @@ static char debugfs_buf[PAGE_SIZE]; #define PM_API(id) {id, #id, strlen(#id)} static struct pm_api_info pm_api_list[] = { PM_API(PM_GET_API_VERSION), + PM_API(PM_QUERY_DATA), }; struct dentry *firmware_debugfs_root; @@ -87,6 +88,7 @@ static int process_api_request(u32 pm_id, u64 *pm_api_arg, u32 *pm_api_ret) const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops(); u32 pm_api_version; int ret; + struct zynqmp_pm_query_data qdata = {0}; if (!eemi_ops) return -ENXIO; @@ -97,6 +99,32 @@ static int process_api_request(u32 pm_id, u64 *pm_api_arg, u32 *pm_api_ret) sprintf(debugfs_buf, "PM-API Version = %d.%d\n", pm_api_version >> 16, pm_api_version & 0xffff); break; + case PM_QUERY_DATA: + qdata.qid = pm_api_arg[0]; + qdata.arg1 = pm_api_arg[1]; + qdata.arg2 = pm_api_arg[2]; + qdata.arg3 = pm_api_arg[3]; + + ret = eemi_ops->query_data(qdata, pm_api_ret); + if (ret) + break; + + switch (qdata.qid) { + case PM_QID_CLOCK_GET_NAME: + sprintf(debugfs_buf, "Clock name = %s\n", + (char *)pm_api_ret); + break; + case PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS: + sprintf(debugfs_buf, "Multiplier = %d, Divider = %d\n", + pm_api_ret[1], pm_api_ret[2]); + break; + default: + sprintf(debugfs_buf, + "data[0] = 0x%08x\ndata[1] = 0x%08x\n data[2] = 0x%08x\ndata[3] = 0x%08x\n", + pm_api_ret[0], pm_api_ret[1], + pm_api_ret[2], pm_api_ret[3]); + } + break; default: sprintf(debugfs_buf, "Unsupported PM-API request\n"); ret = -EINVAL; |