diff options
| -rw-r--r-- | package/kernel/mac80211/patches/937-ath10k-calibration-variant.patch | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/937-ath10k-calibration-variant.patch b/package/kernel/mac80211/patches/937-ath10k-calibration-variant.patch new file mode 100644 index 0000000000..f9a830c7a6 --- /dev/null +++ b/package/kernel/mac80211/patches/937-ath10k-calibration-variant.patch @@ -0,0 +1,106 @@ +From: Sven Eckelmann <sven.eckelmann@openmesh.com> +Date: Fri, 10 Mar 2017 09:06:15 +0100 +Subject: ath10k: search DT for qcom,ath10k-calibration-variant + +Board Data File (BDF) is loaded upon driver boot-up procedure. The right +board data file is identified on QCA4019 using bus, bmi-chip-id and +bmi-board-id. + +The problem, however, can occur when the (default) board data file cannot +fulfill the vendor requirements and it is necessary to use a different +board data file. + +This problem was solved for SMBIOS by adding a special SMBIOS type 0xF8. +Something similar has to be provided for systems without SMBIOS but with +device trees. No solution was specified by QCA and therefore a new one has +to be found for ath10k. + +The device tree requires addition strings to define the variant name + + wifi@a000000 { + status = "okay"; + qcom,ath10k-calibration-variant = "RT-AC58U"; + }; + + wifi@a800000 { + status = "okay"; + qcom,ath10k-calibration-variant = "RT-AC58U"; + }; + +This would create the boarddata identifiers for the board-2.bin search + + * bus=ahb,bmi-chip-id=0,bmi-board-id=16,variant=RT-AC58U + * bus=ahb,bmi-chip-id=0,bmi-board-id=17,variant=RT-AC58U + +Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> + +Origin: other, https://patchwork.kernel.org/patch/9615185/ +--- + +--- a/drivers/net/wireless/ath/ath10k/core.c ++++ b/drivers/net/wireless/ath/ath10k/core.c +@@ -860,6 +860,25 @@ static int ath10k_core_check_smbios(stru + return 0; + } + ++static int ath10k_core_check_dt(struct ath10k *ar) ++{ ++ struct device_node *node; ++ const char *variant = NULL; ++ ++ node = ar->dev->of_node; ++ if (!node) ++ return -ENOENT; ++ ++ of_property_read_string(node, "qcom,ath10k-calibration-variant", ++ &variant); ++ if (!variant) ++ return -ENODATA; ++ ++ strscpy(ar->id.bdf_ext, variant, sizeof(ar->id.bdf_ext)); ++ ++ return 0; ++} ++ + static int ath10k_download_and_run_otp(struct ath10k *ar) + { + u32 result, address = ar->hw_params.patch_load_addr; +@@ -1231,19 +1250,19 @@ static int ath10k_core_create_board_name + /* strlen(',variant=') + strlen(ar->id.bdf_ext) */ + char variant[9 + ATH10K_SMBIOS_BDF_EXT_STR_LENGTH] = { 0 }; + ++ if (ar->id.bdf_ext[0] != '\0') ++ scnprintf(variant, sizeof(variant), ",variant=%s", ++ ar->id.bdf_ext); ++ + if (ar->id.bmi_ids_valid) { + scnprintf(name, name_len, +- "bus=%s,bmi-chip-id=%d,bmi-board-id=%d", ++ "bus=%s,bmi-chip-id=%d,bmi-board-id=%d%s", + ath10k_bus_str(ar->hif.bus), + ar->id.bmi_chip_id, +- ar->id.bmi_board_id); ++ ar->id.bmi_board_id, variant); + goto out; + } + +- if (ar->id.bdf_ext[0] != '\0') +- scnprintf(variant, sizeof(variant), ",variant=%s", +- ar->id.bdf_ext); +- + scnprintf(name, name_len, + "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x%s", + ath10k_bus_str(ar->hif.bus), +@@ -2343,7 +2362,11 @@ static int ath10k_core_probe_fw(struct a + + ret = ath10k_core_check_smbios(ar); + if (ret) +- ath10k_dbg(ar, ATH10K_DBG_BOOT, "bdf variant name not set.\n"); ++ ath10k_dbg(ar, ATH10K_DBG_BOOT, "SMBIOS bdf variant name not set.\n"); ++ ++ ret = ath10k_core_check_dt(ar); ++ if (ret) ++ ath10k_dbg(ar, ATH10K_DBG_BOOT, "DT bdf variant name not set.\n"); + + ret = ath10k_core_fetch_board_file(ar); + if (ret) { |