[PATCH v3 02/22] wifi: rtw88: Dump the HW features only for some chips

[Bitterblue Smith <rtl8821cerfe2@gmail.com>]

RTL8821AU and RTL8812AU don't support this. They hit the "failed to read
hw feature report" error.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
 v2:
 - Return instead of printing hw_cap.

v3:
 - No change.
---
 drivers/net/wireless/realtek/rtw88/main.c     | 3 +++
 drivers/net/wireless/realtek/rtw88/main.h     | 1 +
 drivers/net/wireless/realtek/rtw88/rtw8703b.c | 1 +
 drivers/net/wireless/realtek/rtw88/rtw8723d.c | 1 +
 drivers/net/wireless/realtek/rtw88/rtw8821c.c | 1 +
 drivers/net/wireless/realtek/rtw88/rtw8822b.c | 1 +
 drivers/net/wireless/realtek/rtw88/rtw8822c.c | 1 +
 7 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index bbdef38c7e34..942266324ca4 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1917,6 +1917,9 @@ static int rtw_dump_hw_feature(struct rtw_dev *rtwdev)
 	u8 bw;
 	int i;
 
+	if (!rtwdev->chip->hw_feature_report)
+		return 0;
+
 	id = rtw_read8(rtwdev, REG_C2HEVT);
 	if (id != C2H_HW_FEATURE_REPORT) {
 		rtw_err(rtwdev, "failed to read hw feature report\n");
diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h
index a2bef559cfb8..58c7c6a178a8 100644
--- a/drivers/net/wireless/realtek/rtw88/main.h
+++ b/drivers/net/wireless/realtek/rtw88/main.h
@@ -1200,6 +1200,7 @@ struct rtw_chip_info {
 	const struct rtw_fwcd_segs *fwcd_segs;
 
 	u8 usb_tx_agg_desc_num;
+	bool hw_feature_report;
 
 	u8 default_1ss_tx_path;
 
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8703b.c b/drivers/net/wireless/realtek/rtw88/rtw8703b.c
index 77399b8dd8cd..01ac07ac68c8 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8703b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8703b.c
@@ -1960,6 +1960,7 @@ const struct rtw_chip_info rtw8703b_hw_spec = {
 	.max_power_index = 0x3f,
 	.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
 	.usb_tx_agg_desc_num = 1, /* Not sure if this chip has USB interface */
+	.hw_feature_report = true,
 
 	.path_div_supported = false,
 	.ht_supported = true,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723d.c b/drivers/net/wireless/realtek/rtw88/rtw8723d.c
index 86a5e2497641..bf87c92087da 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8723d.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8723d.c
@@ -2131,6 +2131,7 @@ const struct rtw_chip_info rtw8723d_hw_spec = {
 	.page_size = TX_PAGE_SIZE,
 	.dig_min = 0x20,
 	.usb_tx_agg_desc_num = 1,
+	.hw_feature_report = true,
 	.ht_supported = true,
 	.vht_supported = false,
 	.lps_deep_mode_supported = 0,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
index 66c79956e8e5..44ef2e246724 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
@@ -1968,6 +1968,7 @@ const struct rtw_chip_info rtw8821c_hw_spec = {
 	.page_size = TX_PAGE_SIZE,
 	.dig_min = 0x1c,
 	.usb_tx_agg_desc_num = 3,
+	.hw_feature_report = true,
 	.ht_supported = true,
 	.vht_supported = true,
 	.lps_deep_mode_supported = BIT(LPS_DEEP_MODE_LCLK),
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index 24f76a36f23e..9b7c383f37fe 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -2509,6 +2509,7 @@ const struct rtw_chip_info rtw8822b_hw_spec = {
 	.page_size = TX_PAGE_SIZE,
 	.dig_min = 0x1c,
 	.usb_tx_agg_desc_num = 3,
+	.hw_feature_report = true,
 	.ht_supported = true,
 	.vht_supported = true,
 	.lps_deep_mode_supported = BIT(LPS_DEEP_MODE_LCLK),
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index da74e66bda84..063c65c269fe 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -5329,6 +5329,7 @@ const struct rtw_chip_info rtw8822c_hw_spec = {
 	.page_size = TX_PAGE_SIZE,
 	.dig_min = 0x20,
 	.usb_tx_agg_desc_num = 3,
+	.hw_feature_report = true,
 	.default_1ss_tx_path = BB_PATH_A,
 	.path_div_supported = true,
 	.ht_supported = true,
-- 
2.46.0