From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [stable 4.19][PATCH 15/17] ASoC: stm32: i2s: fix IRQ clearing
Date: Thu, 28 Nov 2019 09:50:00 -0700 [thread overview]
Message-ID: <20191128165002.6234-16-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20191128165002.6234-1-mathieu.poirier@linaro.org>
From: Olivier Moysan <olivier.moysan@st.com>
commit 8ba3c5215d69c09f5c39783ff3b78347769822ad upstream
Because of regmap cache, interrupts may not be cleared
as expected.
Declare IFCR register as write only and make writings
to IFCR register unconditional.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable <stable@vger.kernel.org> # 4.19
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
sound/soc/stm/stm32_i2s.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
index 004d83091505..aa2b1196171a 100644
--- a/sound/soc/stm/stm32_i2s.c
+++ b/sound/soc/stm/stm32_i2s.c
@@ -246,8 +246,8 @@ static irqreturn_t stm32_i2s_isr(int irq, void *devid)
return IRQ_NONE;
}
- regmap_update_bits(i2s->regmap, STM32_I2S_IFCR_REG,
- I2S_IFCR_MASK, flags);
+ regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG,
+ I2S_IFCR_MASK, flags);
if (flags & I2S_SR_OVR) {
dev_dbg(&pdev->dev, "Overrun\n");
@@ -276,7 +276,6 @@ static bool stm32_i2s_readable_reg(struct device *dev, unsigned int reg)
case STM32_I2S_CFG2_REG:
case STM32_I2S_IER_REG:
case STM32_I2S_SR_REG:
- case STM32_I2S_IFCR_REG:
case STM32_I2S_TXDR_REG:
case STM32_I2S_RXDR_REG:
case STM32_I2S_CGFR_REG:
@@ -547,8 +546,8 @@ static int stm32_i2s_startup(struct snd_pcm_substream *substream,
i2s->refcount++;
spin_unlock(&i2s->lock_fd);
- return regmap_update_bits(i2s->regmap, STM32_I2S_IFCR_REG,
- I2S_IFCR_MASK, I2S_IFCR_MASK);
+ return regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG,
+ I2S_IFCR_MASK, I2S_IFCR_MASK);
}
static int stm32_i2s_hw_params(struct snd_pcm_substream *substream,
@@ -603,8 +602,8 @@ static int stm32_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
- regmap_update_bits(i2s->regmap, STM32_I2S_IFCR_REG,
- I2S_IFCR_MASK, I2S_IFCR_MASK);
+ regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG,
+ I2S_IFCR_MASK, I2S_IFCR_MASK);
if (playback_flg) {
ier = I2S_IER_UDRIE;
--
2.17.1
next prev parent reply other threads:[~2019-11-28 16:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-28 16:49 [stable 4.19][PATCH 00/17] candidates for stable 4.19.y Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 01/17] mailbox: stm32_ipcc: add spinlock to fix channels concurrent access Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 02/17] crypto: stm31/hash - Fix hmac issue more than 256 bytes Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 03/17] media: stm32-dcmi: fix DMA corruption when stopping streaming Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 04/17] media: stm32-dcmi: fix check of pm_runtime_get_sync return value Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 05/17] hwrng: stm32 - fix unbalanced pm_runtime_enable Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 06/17] remoteproc: fix rproc_da_to_va in case of unallocated carveout Mathieu Poirier
2019-12-03 19:43 ` Greg KH
2019-12-04 18:13 ` Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 07/17] clk: stm32mp1: fix HSI divider flag Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 08/17] clk: stm32mp1: fix mcu divider table Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 09/17] clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 10/17] clk: stm32mp1: parent clocks update Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 11/17] mailbox: mailbox-test: fix null pointer if no mmio Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 12/17] pinctrl: stm32: fix memory leak issue Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 13/17] ASoC: stm32: i2s: fix dma configuration Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 14/17] ASoC: stm32: i2s: fix 16 bit format support Mathieu Poirier
2019-11-28 16:50 ` Mathieu Poirier [this message]
2019-11-28 16:50 ` [stable 4.19][PATCH 16/17] ASoC: stm32: sai: add missing put_device() Mathieu Poirier
2019-11-28 16:50 ` [stable 4.19][PATCH 17/17] dmaengine: stm32-dma: check whether length is aligned on FIFO threshold Mathieu Poirier
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