[PATCH 10/24] drm/amd/display: Add SPL namespace

[Zaeem Mohamed]

From: Navid Assadian <Navid.Assadian at amd.com>

[Why]
In order to avoid component conflicts, spl namespace is needed.

[How]
Adding SPL namespace to the public API os that each user of SPL can have
their own namespace.

Signed-off-by: Navid Assadian <Navid.Assadian at amd.com>
Reviewed-by: Samson Tam <Samson.Tam at amd.com>
---
 drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c |  4 ++--
 drivers/gpu/drm/amd/display/dc/sspl/dc_spl.h | 16 ++++++++++++++--
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c
index ad77cef57ac7..8d80bce0738a 100644
--- a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c
+++ b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c
@@ -1819,7 +1819,7 @@ static bool spl_calculate_number_of_taps(struct spl_in *spl_in, struct spl_scrat
 }
 
 /* Calculate scaler parameters */
-bool spl_calculate_scaler_params(struct spl_in *spl_in, struct spl_out *spl_out)
+bool SPL_NAMESPACE(spl_calculate_scaler_params(struct spl_in *spl_in, struct spl_out *spl_out))
 {
 	bool res = false;
 	bool enable_easf_v = false;
@@ -1884,7 +1884,7 @@ bool spl_calculate_scaler_params(struct spl_in *spl_in, struct spl_out *spl_out)
 }
 
 /* External interface to get number of taps only */
-bool spl_get_number_of_taps(struct spl_in *spl_in, struct spl_out *spl_out)
+bool SPL_NAMESPACE(spl_get_number_of_taps(struct spl_in *spl_in, struct spl_out *spl_out))
 {
 	bool res = false;
 	bool enable_easf_v = false;
diff --git a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.h b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.h
index 02a2d6725ed5..145961803a92 100644
--- a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.h
+++ b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.h
@@ -9,10 +9,22 @@
 #define BLACK_OFFSET_RGB_Y 0x0
 #define BLACK_OFFSET_CBCR  0x8000
 
+#ifndef SPL_PFX_
+#define SPL_PFX_
+#endif
+
+#define SPL_EXPAND2(a, b)         a##b
+#define SPL_EXPAND(a, b)          SPL_EXPAND2(a, b)
+#define SPL_NAMESPACE(symbol)     SPL_EXPAND(SPL_PFX_, symbol)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* SPL interfaces */
 
-bool spl_calculate_scaler_params(struct spl_in *spl_in, struct spl_out *spl_out);
+bool SPL_NAMESPACE(spl_calculate_scaler_params(struct spl_in *spl_in, struct spl_out *spl_out));
 
-bool spl_get_number_of_taps(struct spl_in *spl_in, struct spl_out *spl_out);
+bool SPL_NAMESPACE(spl_get_number_of_taps(struct spl_in *spl_in, struct spl_out *spl_out));
 
 #endif /* __DC_SPL_H__ */
-- 
2.34.1