ASoC: fsi: add valid data position control support
FSI2 can control valid data position, like package in front/back or stream mode (16bit x 2). But current fsi driver is assuming it was in-back. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -32,7 +32,9 @@
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#define REG_DIDT 0x0020
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#define REG_DODT 0x0024
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#define REG_MUTE_ST 0x0028
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#define REG_OUT_DMAC 0x002C
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#define REG_OUT_SEL 0x0030
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#define REG_IN_DMAC 0x0038
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/* master register */
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#define MST_CLK_RST 0x0210
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@ -886,6 +888,8 @@ static int fsi_hw_startup(struct fsi_priv *fsi,
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int is_play,
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struct device *dev)
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{
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struct fsi_master *master = fsi_get_master(fsi);
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int fsi_ver = master->core->ver;
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u32 flags = fsi_get_info_flags(fsi);
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u32 data = 0;
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@ -920,6 +924,17 @@ static int fsi_hw_startup(struct fsi_priv *fsi,
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fsi_reg_mask_set(fsi, OUT_SEL, DMMD, DMMD);
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}
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/*
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* FIXME
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*
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* FSI driver assumed that data package is in-back.
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* FSI2 chip can select it.
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*/
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if (fsi_ver >= 2) {
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fsi_reg_write(fsi, OUT_DMAC, (1 << 4));
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fsi_reg_write(fsi, IN_DMAC, (1 << 4));
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}
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/* irq clear */
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fsi_irq_disable(fsi, is_play);
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fsi_irq_clear_status(fsi);
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