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Commit 6737311d authored by Rupesh Tatiya's avatar Rupesh Tatiya
Browse files

btfm: set watermark level to 3 for wcn3990 slimbus FM slave ports 



Without this, we hear silence or delay in sound during FM playback in
following use cases -
1. Switching between FM and media applications like YouTube
2. Changing volume during FM FTM

Change-Id: I51072ab70e6bc34e1ed10222ee289d987ed9ffbf
Signed-off-by: default avatarRupesh Tatiya <rtatiya@codeaurora.org>
parent 048c7007

drivers/bluetooth/btfm_slim_wcn3990.c

+17 −7
Original line number Diff line number Diff line
@@ -69,6 +69,14 @@ error: 
	return ret;

}



static inline int is_fm_port(uint8_t port_num)

{

	if (port_num == CHRK_SB_PGD_PORT_TX1_FM ||

		port_num == CHRK_SB_PGD_PORT_TX2_FM)

		return 1;

	else

		return 0;

}



int btfm_slim_chrk_enable_port(struct btfmslim *btfmslim, uint8_t port_num,

	uint8_t rxport, uint8_t enable)
@@ -88,9 +96,7 @@ int btfm_slim_chrk_enable_port(struct btfmslim *btfmslim, uint8_t port_num, 
		goto enable_disable_txport;



	/* Multiple Channel Setting - only for FM Tx */

	if (port_num == CHRK_SB_PGD_PORT_TX1_FM ||

		port_num == CHRK_SB_PGD_PORT_TX2_FM) {



	if (is_fm_port(port_num)) {

		reg_val = (0x1 << CHRK_SB_PGD_PORT_TX1_FM) |

				(0x1 << CHRK_SB_PGD_PORT_TX2_FM);

		reg = CHRK_SB_PGD_TX_PORTn_MULTI_CHNL_0(port_num);
@@ -116,10 +122,14 @@ enable_disable_txport: 
	reg = CHRK_SB_PGD_PORT_TX_CFGN(port_num);



enable_disable_rxport:

	if (enable)

		/* Set water mark to 1 and enable the port */

		reg_val = CHRK_SB_PGD_PORT_ENABLE | CHRK_SB_PGD_PORT_WM_LB;

	if (enable) {

		if (is_fm_port(port_num))

			reg_val = CHRK_SB_PGD_PORT_ENABLE |

					CHRK_SB_PGD_PORT_WM_L3;

		else

			reg_val = CHRK_SB_PGD_PORT_ENABLE |

					CHRK_SB_PGD_PORT_WM_LB;

	} else

		reg_val = CHRK_SB_PGD_PORT_DISABLE;



	ret = btfm_slim_write(btfmslim, reg, 1, &reg_val, IFD);