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soc: swr-wcd: Apply div2 setting on slave side before bank switch

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In soundwire controller, bank switch happen twice
for a playback session with stereo speakers. Ensure
the setting of div2 applied to inactive bank before
bank switch occurs to avoid impact based on bank chosen.

Change-Id: I033b19e78309485ca9da85ec67b54409e6fe22cc
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam 2018-12-04 15:25:39 +05:30 • committed by Gerrit - the friendly Code Review server
parent 210920e31e
commit 87a0712ca2
1 changed files with 4 additions and 3 deletions
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7
drivers/soundwire/swr-wcd-ctrl.c
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@ -653,6 +653,10 @@ static u8 get_inactive_bank_num(struct swr_mstr_ctrl *swrm)
static void enable_bank_switch(struct swr_mstr_ctrl *swrm, u8 bank,
u8 row, u8 col)
{
/* apply div2 setting for inactive bank before bank switch */
swrm_cmd_fifo_wr_cmd(swrm, 0x01, 0xF, 0x00,
SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(bank));
swrm_cmd_fifo_wr_cmd(swrm, ((row << 3) | col), 0xF, 0xF,
SWRS_SCP_FRAME_CTRL_BANK(bank));
}
@ -891,9 +895,6 @@ static void swrm_apply_port_config(struct swr_master *master)
__func__, bank, master->num_port);
swrm_cmd_fifo_wr_cmd(swrm, 0x01, 0xF, 0x00,
SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(bank));
swrm_copy_data_port_config(master, bank);
}