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43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
From 09ad53f0267e4b5433c27c77b3945d584ac0a6ba Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Tue, 22 Oct 2019 08:47:29 +0100
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Subject: [PATCH] rpi-wm8804-soundcard: Fixed MCLKDIV for Allo Digione
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The Allo Digione board wants a fixed MCLKDIV of 256.
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See: https://github.com/raspberrypi/linux/issues/3296
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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sound/soc/bcm/rpi-wm8804-soundcard.c | 10 +++++++---
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1 file changed, 7 insertions(+), 3 deletions(-)
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--- a/sound/soc/bcm/rpi-wm8804-soundcard.c
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+++ b/sound/soc/bcm/rpi-wm8804-soundcard.c
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@@ -66,6 +66,11 @@ static struct gpio_desc *snd_clk44gpio;
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static struct gpio_desc *snd_clk48gpio;
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static int wm8804_samplerate = 0;
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+/* Forward declarations */
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+static struct snd_soc_dai_link snd_allo_digione_dai[];
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+static struct snd_soc_card snd_rpi_wm8804;
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+
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+
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#define CLK_44EN_RATE 22579200UL
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#define CLK_48EN_RATE 24576000UL
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@@ -90,11 +95,10 @@ static unsigned int snd_rpi_wm8804_enabl
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static void snd_rpi_wm8804_clk_cfg(unsigned int samplerate,
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struct wm8804_clk_cfg *clk_cfg)
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{
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- clk_cfg->mclk_freq = 0;
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- clk_cfg->mclk_div = 1;
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clk_cfg->sysclk_freq = 27000000;
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- if (samplerate <= 96000) {
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+ if (samplerate <= 96000 ||
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+ snd_rpi_wm8804.dai_link == snd_allo_digione_dai) {
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clk_cfg->mclk_freq = samplerate * 256;
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clk_cfg->mclk_div = WM8804_MCLKDIV_256FS;
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} else {
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