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ASoC: stm32: spdifrx: fix input pin state management

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Changing input state in iec capture control is not safe,
as the pin state may be changed concurrently by ASoC
framework.
Remove pin state handling in iec capture control.

Note: This introduces a restriction on capture control,
when pin sleep state is defined in device tree. In this case
channel status can be captured only when an audio stream
capture is active.

Fixes: f68c2a682d ("ASoC: stm32: spdifrx: add power management")

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/20191204154333.7152-4-olivier.moysan@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Olivier Moysan 2019-12-04 16:43:33 +01:00 committed by Mark Brown
parent 86e1956af4
commit 3b7658679d
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1 changed files with 0 additions and 4 deletions
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4
sound/soc/stm/stm32_spdifrx.c
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@ -12,7 +12,6 @@
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/pinctrl/consumer.h>
#include <linux/regmap.h>
#include <linux/reset.h>
@ -484,8 +483,6 @@ static int stm32_spdifrx_get_ctrl_data(struct stm32_spdifrx_data *spdifrx)
memset(spdifrx->cs, 0, SPDIFRX_CS_BYTES_NB);
memset(spdifrx->ub, 0, SPDIFRX_UB_BYTES_NB);
pinctrl_pm_select_default_state(&spdifrx->pdev->dev);
ret = stm32_spdifrx_dma_ctrl_start(spdifrx);
if (ret < 0)
return ret;
@ -517,7 +514,6 @@ static int stm32_spdifrx_get_ctrl_data(struct stm32_spdifrx_data *spdifrx)
end:
clk_disable_unprepare(spdifrx->kclk);
pinctrl_pm_select_sleep_state(&spdifrx->pdev->dev);
return ret;
}