From: Sugar Zhang <sugar.zhang@rock-chips.com> To: broonie@kernel.org, heiko@sntech.de Cc: linux-rockchip@lists.infradead.org, alsa-devel@alsa-project.org, Sugar Zhang <sugar.zhang@rock-chips.com> Subject: [PATCH] ASoC: rockchip: i2s: Fix concurrency between tx/rx Date: Mon, 30 Aug 2021 10:36:20 +0800 [thread overview] Message-ID: <1630290980-58894-1-git-send-email-sugar.zhang@rock-chips.com> (raw) This patch adds lock to fix comcurrency between tx/rx to fix 'rockchip-i2s ff070000.i2s; fail to clear' Considering the situation; tx stream rx stream | | | disable enable | | reset After this patch: lock | tx stream | enable | unlock -------- --------- lock | rx stream | disable | reset | unlock Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com> --- --- sound/soc/rockchip/rockchip_i2s.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index c7dc350..e4782ba 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -15,6 +15,7 @@ #include <linux/clk.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> +#include <linux/spinlock.h> #include <sound/pcm_params.h> #include <sound/dmaengine_pcm.h> @@ -49,6 +50,7 @@ struct rk_i2s_dev { bool rx_start; bool is_master_mode; const struct rk_i2s_pins *pins; + spinlock_t lock; /* tx/rx lock */ }; static int i2s_runtime_suspend(struct device *dev) @@ -92,6 +94,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) unsigned int val = 0; int retry = 10; + spin_lock(&lock); if (on) { regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE); @@ -132,6 +135,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) } } } + spin_unlock(&lock); } static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) @@ -139,6 +143,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) unsigned int val = 0; int retry = 10; + spin_lock(&lock); if (on) { regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE); @@ -179,6 +184,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) } } } + spin_unlock(&lock); } static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai, @@ -589,6 +595,7 @@ static int rockchip_i2s_probe(struct platform_device *pdev) if (!i2s) return -ENOMEM; + spin_lock_init(&i2s->lock); i2s->dev = &pdev->dev; i2s->grf = syscon_regmap_lookup_by_phandle(node, "rockchip,grf"); -- 2.7.4 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
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From: Sugar Zhang <sugar.zhang@rock-chips.com> To: broonie@kernel.org, heiko@sntech.de Cc: Sugar Zhang <sugar.zhang@rock-chips.com>, linux-rockchip@lists.infradead.org, alsa-devel@alsa-project.org Subject: [PATCH] ASoC: rockchip: i2s: Fix concurrency between tx/rx Date: Mon, 30 Aug 2021 10:36:20 +0800 [thread overview] Message-ID: <1630290980-58894-1-git-send-email-sugar.zhang@rock-chips.com> (raw) This patch adds lock to fix comcurrency between tx/rx to fix 'rockchip-i2s ff070000.i2s; fail to clear' Considering the situation; tx stream rx stream | | | disable enable | | reset After this patch: lock | tx stream | enable | unlock -------- --------- lock | rx stream | disable | reset | unlock Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com> --- --- sound/soc/rockchip/rockchip_i2s.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index c7dc350..e4782ba 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -15,6 +15,7 @@ #include <linux/clk.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> +#include <linux/spinlock.h> #include <sound/pcm_params.h> #include <sound/dmaengine_pcm.h> @@ -49,6 +50,7 @@ struct rk_i2s_dev { bool rx_start; bool is_master_mode; const struct rk_i2s_pins *pins; + spinlock_t lock; /* tx/rx lock */ }; static int i2s_runtime_suspend(struct device *dev) @@ -92,6 +94,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) unsigned int val = 0; int retry = 10; + spin_lock(&lock); if (on) { regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE); @@ -132,6 +135,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) } } } + spin_unlock(&lock); } static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) @@ -139,6 +143,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) unsigned int val = 0; int retry = 10; + spin_lock(&lock); if (on) { regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE); @@ -179,6 +184,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) } } } + spin_unlock(&lock); } static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai, @@ -589,6 +595,7 @@ static int rockchip_i2s_probe(struct platform_device *pdev) if (!i2s) return -ENOMEM; + spin_lock_init(&i2s->lock); i2s->dev = &pdev->dev; i2s->grf = syscon_regmap_lookup_by_phandle(node, "rockchip,grf"); -- 2.7.4
next reply other threads:[~2021-08-30 2:36 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-30 2:36 Sugar Zhang [this message] 2021-08-30 2:36 ` [PATCH] ASoC: rockchip: i2s: Fix concurrency between tx/rx Sugar Zhang 2021-08-30 4:41 ` kernel test robot 2021-08-30 4:41 ` kernel test robot 2021-08-30 4:41 ` kernel test robot 2021-08-30 4:41 ` kernel test robot 2021-08-30 6:28 ` kernel test robot 2021-08-30 6:28 ` kernel test robot 2021-08-30 6:28 ` kernel test robot
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