[PATCH] ASoC: mt6359: fix failed to parse DT properties
Mt6359 platform device is instantiated by mfd_add_devices(). In the case, dev->of_node is NULL so that mt6359_parse_dt() always fails to parse the desired DT properties.
Gets the DT properties via dev->parent->of_node.
Fixes: 8061734ab654 ("ASoC: mediatek: mt6359: add codec driver") Signed-off-by: Tzung-Bi Shih tzungbi@google.com --- Previous discussion: https://mailman.alsa-project.org/pipermail/alsa-devel/2020-September/173773....
sound/soc/codecs/mt6359.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/mt6359.c b/sound/soc/codecs/mt6359.c index 72f05335b420..81aafb553bdd 100644 --- a/sound/soc/codecs/mt6359.c +++ b/sound/soc/codecs/mt6359.c @@ -2636,8 +2636,13 @@ static int mt6359_parse_dt(struct mt6359_priv *priv) { int ret; struct device *dev = priv->dev; + struct device_node *np;
- ret = of_property_read_u32(dev->of_node, "mediatek,dmic-mode", + np = of_get_child_by_name(dev->parent->of_node, "mt6359codec"); + if (!np) + return -EINVAL; + + ret = of_property_read_u32(np, "mediatek,dmic-mode", &priv->dmic_one_wire_mode); if (ret) { dev_warn(priv->dev, "%s() failed to read dmic-mode\n", @@ -2645,7 +2650,7 @@ static int mt6359_parse_dt(struct mt6359_priv *priv) priv->dmic_one_wire_mode = 0; }
- ret = of_property_read_u32(dev->of_node, "mediatek,mic-type-0", + ret = of_property_read_u32(np, "mediatek,mic-type-0", &priv->mux_select[MUX_MIC_TYPE_0]); if (ret) { dev_warn(priv->dev, "%s() failed to read mic-type-0\n", @@ -2653,7 +2658,7 @@ static int mt6359_parse_dt(struct mt6359_priv *priv) priv->mux_select[MUX_MIC_TYPE_0] = MIC_TYPE_MUX_IDLE; }
- ret = of_property_read_u32(dev->of_node, "mediatek,mic-type-1", + ret = of_property_read_u32(np, "mediatek,mic-type-1", &priv->mux_select[MUX_MIC_TYPE_1]); if (ret) { dev_warn(priv->dev, "%s() failed to read mic-type-1\n", @@ -2661,7 +2666,7 @@ static int mt6359_parse_dt(struct mt6359_priv *priv) priv->mux_select[MUX_MIC_TYPE_1] = MIC_TYPE_MUX_IDLE; }
- ret = of_property_read_u32(dev->of_node, "mediatek,mic-type-2", + ret = of_property_read_u32(np, "mediatek,mic-type-2", &priv->mux_select[MUX_MIC_TYPE_2]); if (ret) { dev_warn(priv->dev, "%s() failed to read mic-type-2\n",
On Tue, 8 Sep 2020 15:00:44 +0800, Tzung-Bi Shih wrote:
Mt6359 platform device is instantiated by mfd_add_devices(). In the case, dev->of_node is NULL so that mt6359_parse_dt() always fails to parse the desired DT properties.
Gets the DT properties via dev->parent->of_node.
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: mt6359: fix failed to parse DT properties commit: 6835302853169441069e11bc4642300c22009c2e
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark
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Mark Brown -
Tzung-Bi Shih