msm: vidc: reset axi during firmware unload

Ensure that the V-NOC module is reset for
1 All types of system error from firmware.
2 Specific video hardware version.

Change-Id: I534cdefd11ebb9217081c2c840f332f7ed7c450d
Signed-off-by: Vikash Garodia <[email protected]>

Author: vgarodia

drivers/media/platform/msm/vidc/venus_hfi.c

@@ -4043,11 +4043,8 @@ static inline void __unprepare_ahb2axi_bridge(struct venus_hfi_device *device,
 	if (version != (0x5 << 28 | 0x10 << 16))
 		return;
 
-	if (!(device->intr_status & VIDC_WRAPPER_INTR_STATUS_A2HWD_BMSK))
-		return;
-
 	dprintk(VIDC_ERR,
-		"reset axi cbcr to recover from hung\n");
+		"reset axi cbcr to recover\n");
 
 	/* read registers */
 	axi0_cbcr_status = __read_gcc_register(device, VIDEO_GCC_AXI0_CBCR);
@@ -4800,7 +4797,8 @@ static int __venus_power_on(struct venus_hfi_device *device)
 	return rc;
 }
 
-static void __venus_power_off(struct venus_hfi_device *device)
+static void __venus_power_off(struct venus_hfi_device *device,
+				bool axi_reset)
 {
 	u32 version;
 
@@ -4810,11 +4808,13 @@ static void __venus_power_off(struct venus_hfi_device *device)
 	if (!(device->intr_status & VIDC_WRAPPER_INTR_STATUS_A2HWD_BMSK))
 		disable_irq_nosync(device->hal_data->irq);
 
-	version = __read_register(device, VIDC_WRAPPER_HW_VERSION);
+	if (axi_reset)
+		version = __read_register(device, VIDC_WRAPPER_HW_VERSION);
 
 	__disable_unprepare_clks(device);
 
-	__unprepare_ahb2axi_bridge(device, version);
+	if (axi_reset)
+		__unprepare_ahb2axi_bridge(device, version);
 
 	device->intr_status = 0;
 
@@ -4852,7 +4852,7 @@ static inline int __suspend(struct venus_hfi_device *device)
 
 	__disable_subcaches(device);
 
-	__venus_power_off(device);
+	__venus_power_off(device, false);
 	dprintk(VIDC_PROF, "Venus power off\n");
 	return rc;
 
@@ -4927,7 +4927,7 @@ static inline int __resume(struct venus_hfi_device *device)
 err_reset_core:
 	__tzbsp_set_video_state(TZBSP_VIDEO_STATE_SUSPEND);
 err_set_video_state:
-	__venus_power_off(device);
+	__venus_power_off(device, false);
 err_venus_power_on:
 	dprintk(VIDC_ERR, "Failed to resume from power collapse\n");
 	return rc;
@@ -4986,7 +4986,7 @@ static int __load_fw(struct venus_hfi_device *device)
 		subsystem_put(device->resources.fw.cookie);
 	device->resources.fw.cookie = NULL;
 fail_load_fw:
-	__venus_power_off(device);
+	__venus_power_off(device, true);
 fail_venus_power_on:
 fail_init_pkt:
 	__deinit_resources(device);
@@ -5007,7 +5007,7 @@ static void __unload_fw(struct venus_hfi_device *device)
 	__vote_buses(device, NULL, 0);
 	subsystem_put(device->resources.fw.cookie);
 	__interface_queues_release(device);
-	__venus_power_off(device);
+	__venus_power_off(device, true);
 	device->resources.fw.cookie = NULL;
 	__deinit_resources(device);