disp: msm: avoid using #ifdef for configurations

Use #if IS_ENABLED() instead of #ifdef for configurations as vendor module
guidelines.

Use #if IS_ENABLED(CONFIG_XXX) instead of #ifdef CONFIG_XXX to ensure that
the code inside the #if block continues to compile if the config changes
to a tristate config in the future.

The differences are as follows:
	1.#if IS_ENABLED(CONFIG_XXX) evaluates to true when CONFIG_XXX is set to
		module (=m) or built-in (=y).
	2.#ifdef CONFIG_XXX evaluates to true when CONFIG_XXX is set to
		built-in(=y) , but doesn't when CONFIG_XXX is set to module(=m).
		Use this only when you're certain you want to do the same thing
		when the config is set to module or is disabled.

Change-Id: Ia806b9b01ad8414d0e4de027a382cb68e7fb4a6a
Signed-off-by: GG Hou <quic_renjhou@quicinc.com>

rotator/sde_rotator_base.h

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
  */
 
@@ -310,14 +311,14 @@ int sde_rotator_base_init(struct sde_rot_data_type **pmdata,
 
 void sde_rotator_base_destroy(struct sde_rot_data_type *data);
 
-#ifdef CONFIG_MSM_SDE_ROTATOR
+#if IS_ENABLED(CONFIG_MSM_SDE_ROTATOR)
 struct sde_rot_data_type *sde_rot_get_mdata(void);
 #else
 static inline struct sde_rot_data_type *sde_rot_get_mdata(void)
 {
 	return NULL;
 }
-#endif
+#endif /* CONFIG_MSM_SDE_ROTATOR */
 
 struct reg_bus_client *sde_reg_bus_vote_client_create(char *client_name);
 

rotator/sde_rotator_core.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
  */
 
@@ -3320,7 +3321,7 @@ int sde_rotator_runtime_idle(struct device *dev)
 
 #endif
 
-#ifdef CONFIG_PM_SLEEP
+#if IS_ENABLED(CONFIG_PM_SLEEP)
 /*
  * sde_rotator_pm_suspend - put the device in pm suspend state by cancelling
  *							 all active requests
@@ -3382,7 +3383,7 @@ int sde_rotator_pm_resume(struct device *dev)
 	sde_rot_mgr_unlock(mgr);
 	return 0;
 }
-#endif
+#endif /* CONFIG_PM_SLEEP */
 
 #if defined(CONFIG_PM) && !defined(CONFIG_PM_SLEEP)
 int sde_rotator_suspend(struct platform_device *dev, pm_message_t state)

rotator/sde_rotator_debug.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
  */
 #define pr_fmt(fmt)	"%s: " fmt, __func__
@@ -16,11 +17,11 @@
 #include "sde_rotator_dev.h"
 #include "sde_rotator_trace.h"
 
-#ifdef CONFIG_MSM_SDE_ROTATOR_EVTLOG_DEBUG
+#if IS_ENABLED(CONFIG_MSM_SDE_ROTATOR_EVTLOG_DEBUG)
 #define SDE_EVTLOG_DEFAULT_ENABLE 1
 #else
 #define SDE_EVTLOG_DEFAULT_ENABLE 0
-#endif
+#endif /* CONFIG_MSM_SDE_ROTATOR_EVTLOG_DEBUG */
 #define SDE_EVTLOG_DEFAULT_PANIC 1
 #define SDE_EVTLOG_DEFAULT_REGDUMP SDE_ROT_DBG_DUMP_IN_MEM
 #define SDE_EVTLOG_DEFAULT_VBIF_DBGBUSDUMP SDE_ROT_DBG_DUMP_IN_MEM

rotator/sde_rotator_dev.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
  */
 #define pr_fmt(fmt)	"%s:%d: " fmt, __func__, __LINE__
@@ -56,10 +57,10 @@
 #ifndef CONFIG_MSM_SDE_ROTATOR_INIT_ONLY
 static void sde_rotator_submit_handler(struct kthread_work *work);
 static void sde_rotator_retire_handler(struct kthread_work *work);
-#ifdef CONFIG_COMPAT
+#if IS_ENABLED(CONFIG_COMPAT)
 static long sde_rotator_compat_ioctl32(struct file *file,
 	unsigned int cmd, unsigned long arg);
-#endif
+#endif /* CONFIG_COMPAT */
 
 /*
  * sde_rotator_ctx_from_fh - Get rotator context from v4l2 fh.
@@ -1909,9 +1910,9 @@ static const struct v4l2_file_operations sde_rotator_fops = {
 	.release        = sde_rotator_release,
 	.poll           = sde_rotator_poll,
 	.unlocked_ioctl = video_ioctl2,
-#ifdef CONFIG_COMPAT
+#if IS_ENABLED(CONFIG_COMPAT)
 	.compat_ioctl32 = sde_rotator_compat_ioctl32,
-#endif
+#endif /* CONFIG_COMPAT */
 };
 
 /*
@@ -2740,7 +2741,7 @@ static long sde_rotator_private_ioctl(struct file *file, void *fh,
 	return 0;
 }
 
-#ifdef CONFIG_COMPAT
+#if IS_ENABLED(CONFIG_COMPAT)
 /*
  * sde_rotator_compat_ioctl32 - Compat ioctl handler function.
  * @file: Pointer to file struct.
@@ -2809,7 +2810,7 @@ ioctl32_error:
 	SDEDEV_ERR(ctx->rot_dev->dev, "error handling ioctl32 cmd:%x\n", cmd);
 	return -EFAULT;
 }
-#endif
+#endif /* CONFIG_COMPAT */
 
 static int sde_rotator_ctrl_subscribe_event(struct v4l2_fh *fh,
 				const struct v4l2_event_subscription *sub)

rotator/sde_rotator_smmu.h

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
  */
 
@@ -25,14 +26,14 @@ static inline int sde_smmu_dma_data_direction(int dir)
 	return dir;
 }
 
-#ifdef CONFIG_MSM_SDE_ROTATOR
+#if IS_ENABLED(CONFIG_MSM_SDE_ROTATOR)
 int sde_smmu_ctrl(int enable);
 #else
 static inline int sde_smmu_ctrl(int enable)
 {
 	return 0;
 }
-#endif
+#endif /* CONFIG_MSM_SDE_ROTATOR */
 
 struct dma_buf_attachment *sde_smmu_dma_buf_attach(
 		struct dma_buf *dma_buf, struct device *dev, int domain);