From 38e4c25d606920f4120c4f050657fa8ee736c8d7 Mon Sep 17 00:00:00 2001
From: Maya Erez <qca_merez@qca.qualcomm.com>
Date: Thu, 14 Dec 2017 18:53:07 +0200
Subject: [PATCH] wil6210: add platform capabilities bitmap
Git-commit: 38e4c25d606920f4120c4f050657fa8ee736c8d7
Patch-mainline: v4.16-rc1
References: FATE#326906

Add get_capa callback to platform ops to allow reading the platform
capabilities.
Supported capabilities:
- Keeping 11ad connection during suspend
- T_POWER_ON 0 support
- Usage of external clock

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/ath/wil6210/main.c         | 15 ++++++++++++---
 drivers/net/wireless/ath/wil6210/pcie_bus.c     | 10 ++++++++++
 drivers/net/wireless/ath/wil6210/wil6210.h      |  5 +++++
 drivers/net/wireless/ath/wil6210/wil_platform.h |  9 ++++++++-
 4 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 5d697969c918..bafd8d515618 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -773,9 +773,8 @@ void wil_refresh_fw_capabilities(struct wil6210_priv *wil)
 	struct wiphy *wiphy = wil_to_wiphy(wil);
 
 	wil->keep_radio_on_during_sleep =
-		wil->platform_ops.keep_radio_on_during_sleep &&
-		wil->platform_ops.keep_radio_on_during_sleep(
-			wil->platform_handle) &&
+		test_bit(WIL_PLATFORM_CAPA_RADIO_ON_IN_SUSPEND,
+			 wil->platform_capa) &&
 		test_bit(WMI_FW_CAPABILITY_D3_SUSPEND, wil->fw_capabilities);
 
 	wil_info(wil, "keep_radio_on_during_sleep (%d)\n",
@@ -1008,6 +1007,16 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw)
 	if (wil->hw_version == HW_VER_UNKNOWN)
 		return -ENODEV;
 
+	if (test_bit(WIL_PLATFORM_CAPA_T_PWR_ON_0, wil->platform_capa)) {
+		wil_dbg_misc(wil, "Notify FW to set T_POWER_ON=0\n");
+		wil_s(wil, RGF_USER_USAGE_8, BIT_USER_SUPPORT_T_POWER_ON_0);
+	}
+
+	if (test_bit(WIL_PLATFORM_CAPA_EXT_CLK, wil->platform_capa)) {
+		wil_dbg_misc(wil, "Notify FW on ext clock configuration\n");
+		wil_s(wil, RGF_USER_USAGE_8, BIT_USER_EXT_CLK);
+	}
+
 	if (wil->platform_ops.notify) {
 		rc = wil->platform_ops.notify(wil->platform_handle,
 					      WIL_PLATFORM_EVT_PRE_RESET);
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 030878b89664..0c401bf151a2 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -41,9 +41,11 @@ void wil_set_capabilities(struct wil6210_priv *wil)
 	u32 jtag_id = wil_r(wil, RGF_USER_JTAG_DEV_ID);
 	u8 chip_revision = (wil_r(wil, RGF_USER_REVISION_ID) &
 			    RGF_USER_REVISION_ID_MASK);
+	int platform_capa;
 
 	bitmap_zero(wil->hw_capabilities, hw_capability_last);
 	bitmap_zero(wil->fw_capabilities, WMI_FW_CAPABILITY_MAX);
+	bitmap_zero(wil->platform_capa, WIL_PLATFORM_CAPA_MAX);
 	wil->wil_fw_name = ftm_mode ? WIL_FW_NAME_FTM_DEFAULT :
 			   WIL_FW_NAME_DEFAULT;
 	wil->chip_revision = chip_revision;
@@ -79,6 +81,14 @@ void wil_set_capabilities(struct wil6210_priv *wil)
 
 	wil_info(wil, "Board hardware is %s\n", wil->hw_name);
 
+	/* Get platform capabilities */
+	if (wil->platform_ops.get_capa) {
+		platform_capa =
+			wil->platform_ops.get_capa(wil->platform_handle);
+		memcpy(wil->platform_capa, &platform_capa,
+		       min(sizeof(wil->platform_capa), sizeof(platform_capa)));
+	}
+
 	/* extract FW capabilities from file without loading the FW */
 	wil_request_firmware(wil, wil->wil_fw_name, false);
 	wil_refresh_fw_capabilities(wil);
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index decbc984694c..346b600b2701 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -161,6 +161,10 @@ struct RGF_ICR {
 #define RGF_USER_USAGE_6		(0x880018)
 	#define BIT_USER_OOB_MODE		BIT(31)
 	#define BIT_USER_OOB_R2_MODE		BIT(30)
+#define RGF_USER_USAGE_8		(0x880020)
+	#define BIT_USER_PREVENT_DEEP_SLEEP	BIT(0)
+	#define BIT_USER_SUPPORT_T_POWER_ON_0	BIT(1)
+	#define BIT_USER_EXT_CLK		BIT(2)
 #define RGF_USER_HW_MACHINE_STATE	(0x8801dc)
 	#define HW_MACHINE_BOOT_DONE	(0x3fffffd)
 #define RGF_USER_USER_CPU_0		(0x8801e0)
@@ -643,6 +647,7 @@ struct wil6210_priv {
 	const char *wil_fw_name;
 	DECLARE_BITMAP(hw_capabilities, hw_capability_last);
 	DECLARE_BITMAP(fw_capabilities, WMI_FW_CAPABILITY_MAX);
+	DECLARE_BITMAP(platform_capa, WIL_PLATFORM_CAPA_MAX);
 	u8 n_mids; /* number of additional MIDs as reported by FW */
 	u32 recovery_count; /* num of FW recovery attempts in a short time */
 	u32 recovery_state; /* FW recovery state machine */
diff --git a/drivers/net/wireless/ath/wil6210/wil_platform.h b/drivers/net/wireless/ath/wil6210/wil_platform.h
index 5d9e4bfcb045..5cfb946caff7 100644
--- a/drivers/net/wireless/ath/wil6210/wil_platform.h
+++ b/drivers/net/wireless/ath/wil6210/wil_platform.h
@@ -27,6 +27,13 @@ enum wil_platform_event {
 	WIL_PLATFORM_EVT_POST_SUSPEND = 4,
 };
 
+enum wil_platform_capa {
+	WIL_PLATFORM_CAPA_RADIO_ON_IN_SUSPEND = 0,
+	WIL_PLATFORM_CAPA_T_PWR_ON_0 = 1,
+	WIL_PLATFORM_CAPA_EXT_CLK = 2,
+	WIL_PLATFORM_CAPA_MAX,
+};
+
 /**
  * struct wil_platform_ops - wil platform module calls from this
  * driver to platform driver
@@ -37,7 +44,7 @@ struct wil_platform_ops {
 	int (*resume)(void *handle, bool device_powered_on);
 	void (*uninit)(void *handle);
 	int (*notify)(void *handle, enum wil_platform_event evt);
-	bool (*keep_radio_on_during_sleep)(void *handle);
+	int (*get_capa)(void *handle);
 };
 
 /**
-- 
2.19.2