[PATCH AUTOSEL 6.6 15/47] ASoC: fsl_xcvr: refine the requested phy clock frequency

Sasha Levin
2023-12-11T13:53:10Z

From: Shengjiu Wang <shengjiu.wang@nxp.com>

[ Upstream commit 347ecf29a68cc8958fbcbd26ef410d07fe9d82f4 ]

As the input phy clock frequency will divided by 2 by default
on i.MX8MP with the implementation of clk-imx8mp-audiomix driver,
So the requested frequency need to be updated.

The relation of phy clock is:
sai_pll_ref_sel
sai_pll
sai_pll_bypass
sai_pll_out
sai_pll_out_div2
earc_phy_cg

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Link: https://lore.kernel.org/r/1700702093-8008-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/fsl/fsl_xcvr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index 77f8e2394bf93..f0fb33d719c25 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -358,7 +358,7 @@ static int fsl_xcvr_en_aud_pll(struct fsl_xcvr *xcvr, u32 freq)
struct device *dev = &xcvr->pdev->dev;
int ret;

- freq = xcvr->soc_data->spdif_only ? freq / 10 : freq;
+ freq = xcvr->soc_data->spdif_only ? freq / 5 : freq;
clk_disable_unprepare(xcvr->phy_clk);
ret = clk_set_rate(xcvr->phy_clk, freq);
if (ret < 0) {
@@ -409,7 +409,7 @@ static int fsl_xcvr_prepare(struct snd_pcm_substream *substream,
bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
u32 m_ctl = 0, v_ctl = 0;
u32 r = substream->runtime->rate, ch = substream->runtime->channels;
- u32 fout = 32 * r * ch * 10 * 2;
+ u32 fout = 32 * r * ch * 10;
int ret = 0;

switch (xcvr->mode) {
--
2.42.0