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| author |   Ronak Jain <ronak.jain@xilinx.com> | 2022-04-06 03:55:24 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-22 17:20:03 +0200 |
| commit | 94ae7f22265e795b4351c7a51a34c4b11dec9952 (patch) | |
| tree | f266bf8d1478be4247b56c210c72d4f1e4fade19 /drivers/firmware/xilinx | |
| parent | firmware: xilinx: add support for IOCTL and QUERY ID feature check (diff) | |
| download | linux-dev-94ae7f22265e795b4351c7a51a34c4b11dec9952.tar.xz linux-dev-94ae7f22265e795b4351c7a51a34c4b11dec9952.zip | |
firmware: xilinx: add new function for do_feature_check_call
Add new function for sending feature check request to firmware and
call it from zynqmp_pm_feature().
Signed-off-by: Ronak Jain <ronak.jain@xilinx.com>
Link: https://lore.kernel.org/r/1649242526-17493-3-git-send-email-ronak.jain@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware/xilinx')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 41ca41697790..d27a3b20227b 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -175,6 +175,23 @@ static noinline int do_fw_call_hvc(u64 arg0, u64 arg1, u64 arg2, return zynqmp_pm_ret_code((enum pm_ret_status)res.a0); } +static int do_feature_check_call(const u32 api_id, u32 *ret_payload) +{ + int ret; + u64 smc_arg[2]; + + smc_arg[0] = PM_SIP_SVC | PM_FEATURE_CHECK; + smc_arg[1] = api_id; + + ret = do_fw_call(smc_arg[0], smc_arg[1], 0, ret_payload); + if (ret) + ret = -EOPNOTSUPP; + else + ret = ret_payload[1]; + + return ret; +} + /** * zynqmp_pm_feature() - Check whether given feature is supported or not and * store supported IOCTL/QUERY ID mask @@ -186,7 +203,6 @@ int zynqmp_pm_feature(const u32 api_id) { int ret; u32 ret_payload[PAYLOAD_ARG_CNT]; - u64 smc_arg[2]; struct pm_api_feature_data *feature_data; if (!feature_check_enabled) @@ -205,14 +221,7 @@ int zynqmp_pm_feature(const u32 api_id) return -ENOMEM; feature_data->pm_api_id = api_id; - smc_arg[0] = PM_SIP_SVC | PM_FEATURE_CHECK; - smc_arg[1] = api_id; - - ret = do_fw_call(smc_arg[0], smc_arg[1], 0, ret_payload); - if (ret) - ret = -EOPNOTSUPP; - else - ret = ret_payload[1]; + ret = do_feature_check_call(api_id, ret_payload); feature_data->feature_status = ret; hash_add(pm_api_features_map, &feature_data->hentry, api_id); |