HID: amd_sfh: Extend MP2 register access to SFH

Various MP2 register sets are supported by newer processors. Therefore,
extend MP2 register access to SFH.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Author: basuamd

drivers/hid/amd-sfh-hid/amd_sfh_common.h

@@ -19,6 +19,9 @@
 #define AMD_C2P_MSG(regno) (0x10500 + ((regno) * 4))
 #define AMD_P2C_MSG(regno) (0x10680 + ((regno) * 4))
 
+#define AMD_C2P_MSG_V1(regno) (0x10900 + ((regno) * 4))
+#define AMD_P2C_MSG_V1(regno) (0x10500 + ((regno) * 4))
+
 #define SENSOR_ENABLED			4
 #define SENSOR_DISABLED			5
 
@@ -55,6 +58,7 @@ struct amd_mp2_dev {
 	struct sfh_dev_status dev_en;
 	struct work_struct work;
 	u8 init_done;
+	u8 rver;
 };
 
 struct amd_mp2_ops {
@@ -81,4 +85,14 @@ void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata);
 int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata);
 void amd_sfh_clear_intr(struct amd_mp2_dev *privdata);
 int amd_sfh_irq_init(struct amd_mp2_dev *privdata);
+
+static inline u64 amd_get_c2p_val(struct amd_mp2_dev *mp2, u32 idx)
+{
+	return mp2->rver == 1 ? AMD_C2P_MSG_V1(idx) :  AMD_C2P_MSG(idx);
+}
+
+static inline u64 amd_get_p2c_val(struct amd_mp2_dev *mp2, u32 idx)
+{
+	return mp2->rver == 1 ? AMD_P2C_MSG_V1(idx) :  AMD_P2C_MSG(idx);
+}
 #endif

drivers/hid/amd-sfh-hid/amd_sfh_pcie.c

@@ -99,9 +99,9 @@ static void amd_stop_all_sensor_v2(struct amd_mp2_dev *privdata)
 
 void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata)
 {
-	if (readl(privdata->mmio + AMD_P2C_MSG(4))) {
-		writel(0, privdata->mmio + AMD_P2C_MSG(4));
-		writel(0xf, privdata->mmio + AMD_P2C_MSG(5));
+	if (readl(privdata->mmio + amd_get_p2c_val(privdata, 4))) {
+		writel(0, privdata->mmio + amd_get_p2c_val(privdata, 4));
+		writel(0xf, privdata->mmio + amd_get_p2c_val(privdata, 5));
 	}
 }
 
@@ -410,6 +410,9 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 
 	privdata->sfh1_1_ops = (const struct amd_sfh1_1_ops *)id->driver_data;
 	if (privdata->sfh1_1_ops) {
+		if (boot_cpu_data.x86 >= 0x1A)
+			privdata->rver = 1;
+
 		rc = devm_work_autocancel(&pdev->dev, &privdata->work, sfh1_1_init_work);
 		if (rc)
 			return rc;

drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c

@@ -251,7 +251,7 @@ static u8 get_input_rep(u8 current_index, int sensor_idx, int report_id,
 		break;
 	case HPD_IDX:
 		get_common_inputs(&hpd_input.common_property, report_id);
-		hpdstatus.val = readl(mp2->mmio + AMD_C2P_MSG(4));
+		hpdstatus.val = readl(mp2->mmio + amd_get_c2p_val(mp2, 4));
 		hpd_input.human_presence = hpdstatus.shpd.presence;
 		report_size = sizeof(hpd_input);
 		memcpy(input_report, &hpd_input, sizeof(hpd_input));

drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c

@@ -172,7 +172,7 @@ static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
 		if (rc)
 			goto cleanup;
 
-		writel(0, privdata->mmio + AMD_P2C_MSG(0));
+		writel(0, privdata->mmio + amd_get_p2c_val(privdata, 0));
 		mp2_ops->start(privdata, info);
 		status = amd_sfh_wait_for_response
 				(privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);
@@ -298,7 +298,7 @@ static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
 
 int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
 {
-	u32 phy_base = readl(mp2->mmio + AMD_C2P_MSG(22));
+	u32 phy_base = readl(mp2->mmio + amd_get_c2p_val(mp2, 22));
 	struct device *dev = &mp2->pdev->dev;
 	struct sfh_base_info binfo;
 	int rc;

drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c

@@ -20,7 +20,7 @@ static int amd_sfh_wait_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
 	struct sfh_cmd_response cmd_resp;
 
 	/* Get response with status within a max of 10000 ms timeout */
-	if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG(0), cmd_resp.resp,
+	if (!readl_poll_timeout(mp2->mmio + amd_get_p2c_val(mp2, 0), cmd_resp.resp,
 				(cmd_resp.response.response == 0 &&
 				cmd_resp.response.cmd_id == cmd_id && (sid == 0xff ||
 				cmd_resp.response.sensor_id == sid)), 500, 10000000))
@@ -39,7 +39,7 @@ static void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor
 	cmd_base.cmd.sub_cmd_value = 1;
 	cmd_base.cmd.sensor_id = info.sensor_idx;
 
-	writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
+	writel(cmd_base.ul, privdata->mmio + amd_get_c2p_val(privdata, 0));
 }
 
 static void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx)
@@ -52,8 +52,8 @@ static void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx)
 	cmd_base.cmd.sub_cmd_value = 1;
 	cmd_base.cmd.sensor_id = sensor_idx;
 
-	writeq(0x0, privdata->mmio + AMD_C2P_MSG(1));
-	writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
+	writeq(0x0, privdata->mmio + amd_get_c2p_val(privdata, 1));
+	writel(cmd_base.ul, privdata->mmio + amd_get_c2p_val(privdata, 0));
 }
 
 static void amd_stop_all_sensor(struct amd_mp2_dev *privdata)
@@ -66,7 +66,7 @@ static void amd_stop_all_sensor(struct amd_mp2_dev *privdata)
 	/* 0xf indicates all sensors */
 	cmd_base.cmd.sensor_id = 0xf;
 
-	writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
+	writel(cmd_base.ul, privdata->mmio + amd_get_c2p_val(privdata, 0));
 }
 
 static struct amd_mp2_ops amd_sfh_ops = {