Enabling BT I2S config for muxed pins.
Signed-off-by: Akshu Agrawal <[email protected]>
Signed-off-by: Vijendar Mukunda <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index 0f17663..031c09e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -76,6 +76,8 @@
#define mmACP_CONTROL 0x5131
#define mmACP_STATUS 0x5133
#define mmACP_SOFT_RESET 0x5134
+#define mmACP_BT_UART_PAD_SELECT 0x51D7
+#define ACP_BT_UART_PAD_SELECT_MASK 0x1
#define ACP_CONTROL__ClkEn_MASK 0x1
#define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
#define ACP_SOFT_RESET__SoftResetAudDone_MASK 0x1000000
@@ -510,6 +512,11 @@ static int acp_hw_init(void *handle)
val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
+ /*For BT instance change pins from UART to BT */
+ val = cgs_read_register(adev->acp.cgs_device, mmACP_BT_UART_PAD_SELECT);
+ val |= ACP_BT_UART_PAD_SELECT_MASK;
+ cgs_write_register(adev->acp.cgs_device, mmACP_BT_UART_PAD_SELECT, val);
+
return 0;
}
--
2.7.4
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