From e60f02ddb4d2e29b0eb30dbe55475822c4bf3818 Mon Sep 17 00:00:00 2001 From: Rajan Vaja Date: Wed, 12 Sep 2018 12:38:40 -0700 Subject: 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 Signed-off-by: Jolly Shah Signed-off-by: Michal Simek --- drivers/firmware/xilinx/zynqmp-debug.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers/firmware') 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; -- cgit v1.2.3