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Message-Id: <20210512144841.791127081@linuxfoundation.org>
Date: Wed, 12 May 2021 16:48:21 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Stephen Boyd <sboyd@...nel.org>,
Mark Brown <broonie@...nel.org>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.11 424/601] ASoC: q6afe-clocks: fix reprobing of the driver
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
[ Upstream commit 96fadf7e8ff49fdb74754801228942b67c3eeebd ]
Q6afe-clocks driver can get reprobed. For example if the APR services
are restarted after the firmware crash. However currently Q6afe-clocks
driver will oops because hw.init will get cleared during first _probe
call. Rewrite the driver to fill the clock data at runtime rather than
using big static array of clocks.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Reviewed-by: Stephen Boyd <sboyd@...nel.org>
Fixes: 520a1c396d19 ("ASoC: q6afe-clocks: add q6afe clock controller")
Link: https://lore.kernel.org/r/20210327092857.3073879-1-dmitry.baryshkov@linaro.org
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
sound/soc/qcom/qdsp6/q6afe-clocks.c | 209 ++++++++++++++--------------
sound/soc/qcom/qdsp6/q6afe.c | 2 +-
sound/soc/qcom/qdsp6/q6afe.h | 2 +-
3 files changed, 108 insertions(+), 105 deletions(-)
diff --git a/sound/soc/qcom/qdsp6/q6afe-clocks.c b/sound/soc/qcom/qdsp6/q6afe-clocks.c
index f0362f061652..9431656283cd 100644
--- a/sound/soc/qcom/qdsp6/q6afe-clocks.c
+++ b/sound/soc/qcom/qdsp6/q6afe-clocks.c
@@ -11,33 +11,29 @@
#include <linux/slab.h>
#include "q6afe.h"
-#define Q6AFE_CLK(id) &(struct q6afe_clk) { \
+#define Q6AFE_CLK(id) { \
.clk_id = id, \
.afe_clk_id = Q6AFE_##id, \
.name = #id, \
- .attributes = LPASS_CLK_ATTRIBUTE_COUPLE_NO, \
.rate = 19200000, \
- .hw.init = &(struct clk_init_data) { \
- .ops = &clk_q6afe_ops, \
- .name = #id, \
- }, \
}
-#define Q6AFE_VOTE_CLK(id, blkid, n) &(struct q6afe_clk) { \
+#define Q6AFE_VOTE_CLK(id, blkid, n) { \
.clk_id = id, \
.afe_clk_id = blkid, \
- .name = #n, \
- .hw.init = &(struct clk_init_data) { \
- .ops = &clk_vote_q6afe_ops, \
- .name = #id, \
- }, \
+ .name = n, \
}
-struct q6afe_clk {
- struct device *dev;
+struct q6afe_clk_init {
int clk_id;
int afe_clk_id;
char *name;
+ int rate;
+};
+
+struct q6afe_clk {
+ struct device *dev;
+ int afe_clk_id;
int attributes;
int rate;
uint32_t handle;
@@ -48,8 +44,7 @@ struct q6afe_clk {
struct q6afe_cc {
struct device *dev;
- struct q6afe_clk **clks;
- int num_clks;
+ struct q6afe_clk *clks[Q6AFE_MAX_CLK_ID];
};
static int clk_q6afe_prepare(struct clk_hw *hw)
@@ -105,7 +100,7 @@ static int clk_vote_q6afe_block(struct clk_hw *hw)
struct q6afe_clk *clk = to_q6afe_clk(hw);
return q6afe_vote_lpass_core_hw(clk->dev, clk->afe_clk_id,
- clk->name, &clk->handle);
+ clk_hw_get_name(&clk->hw), &clk->handle);
}
static void clk_unvote_q6afe_block(struct clk_hw *hw)
@@ -120,84 +115,76 @@ static const struct clk_ops clk_vote_q6afe_ops = {
.unprepare = clk_unvote_q6afe_block,
};
-static struct q6afe_clk *q6afe_clks[Q6AFE_MAX_CLK_ID] = {
- [LPASS_CLK_ID_PRI_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_PRI_MI2S_IBIT),
- [LPASS_CLK_ID_PRI_MI2S_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_PRI_MI2S_EBIT),
- [LPASS_CLK_ID_SEC_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEC_MI2S_IBIT),
- [LPASS_CLK_ID_SEC_MI2S_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEC_MI2S_EBIT),
- [LPASS_CLK_ID_TER_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_TER_MI2S_IBIT),
- [LPASS_CLK_ID_TER_MI2S_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_TER_MI2S_EBIT),
- [LPASS_CLK_ID_QUAD_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUAD_MI2S_IBIT),
- [LPASS_CLK_ID_QUAD_MI2S_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUAD_MI2S_EBIT),
- [LPASS_CLK_ID_SPEAKER_I2S_IBIT] =
- Q6AFE_CLK(LPASS_CLK_ID_SPEAKER_I2S_IBIT),
- [LPASS_CLK_ID_SPEAKER_I2S_EBIT] =
- Q6AFE_CLK(LPASS_CLK_ID_SPEAKER_I2S_EBIT),
- [LPASS_CLK_ID_SPEAKER_I2S_OSR] =
- Q6AFE_CLK(LPASS_CLK_ID_SPEAKER_I2S_OSR),
- [LPASS_CLK_ID_QUI_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUI_MI2S_IBIT),
- [LPASS_CLK_ID_QUI_MI2S_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUI_MI2S_EBIT),
- [LPASS_CLK_ID_SEN_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEN_MI2S_IBIT),
- [LPASS_CLK_ID_SEN_MI2S_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEN_MI2S_EBIT),
- [LPASS_CLK_ID_INT0_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT0_MI2S_IBIT),
- [LPASS_CLK_ID_INT1_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT1_MI2S_IBIT),
- [LPASS_CLK_ID_INT2_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT2_MI2S_IBIT),
- [LPASS_CLK_ID_INT3_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT3_MI2S_IBIT),
- [LPASS_CLK_ID_INT4_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT4_MI2S_IBIT),
- [LPASS_CLK_ID_INT5_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT5_MI2S_IBIT),
- [LPASS_CLK_ID_INT6_MI2S_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_INT6_MI2S_IBIT),
- [LPASS_CLK_ID_QUI_MI2S_OSR] = Q6AFE_CLK(LPASS_CLK_ID_QUI_MI2S_OSR),
- [LPASS_CLK_ID_PRI_PCM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_PRI_PCM_IBIT),
- [LPASS_CLK_ID_PRI_PCM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_PRI_PCM_EBIT),
- [LPASS_CLK_ID_SEC_PCM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEC_PCM_IBIT),
- [LPASS_CLK_ID_SEC_PCM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEC_PCM_EBIT),
- [LPASS_CLK_ID_TER_PCM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_TER_PCM_IBIT),
- [LPASS_CLK_ID_TER_PCM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_TER_PCM_EBIT),
- [LPASS_CLK_ID_QUAD_PCM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUAD_PCM_IBIT),
- [LPASS_CLK_ID_QUAD_PCM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUAD_PCM_EBIT),
- [LPASS_CLK_ID_QUIN_PCM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUIN_PCM_IBIT),
- [LPASS_CLK_ID_QUIN_PCM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUIN_PCM_EBIT),
- [LPASS_CLK_ID_QUI_PCM_OSR] = Q6AFE_CLK(LPASS_CLK_ID_QUI_PCM_OSR),
- [LPASS_CLK_ID_PRI_TDM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_PRI_TDM_IBIT),
- [LPASS_CLK_ID_PRI_TDM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_PRI_TDM_EBIT),
- [LPASS_CLK_ID_SEC_TDM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEC_TDM_IBIT),
- [LPASS_CLK_ID_SEC_TDM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_SEC_TDM_EBIT),
- [LPASS_CLK_ID_TER_TDM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_TER_TDM_IBIT),
- [LPASS_CLK_ID_TER_TDM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_TER_TDM_EBIT),
- [LPASS_CLK_ID_QUAD_TDM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUAD_TDM_IBIT),
- [LPASS_CLK_ID_QUAD_TDM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUAD_TDM_EBIT),
- [LPASS_CLK_ID_QUIN_TDM_IBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUIN_TDM_IBIT),
- [LPASS_CLK_ID_QUIN_TDM_EBIT] = Q6AFE_CLK(LPASS_CLK_ID_QUIN_TDM_EBIT),
- [LPASS_CLK_ID_QUIN_TDM_OSR] = Q6AFE_CLK(LPASS_CLK_ID_QUIN_TDM_OSR),
- [LPASS_CLK_ID_MCLK_1] = Q6AFE_CLK(LPASS_CLK_ID_MCLK_1),
- [LPASS_CLK_ID_MCLK_2] = Q6AFE_CLK(LPASS_CLK_ID_MCLK_2),
- [LPASS_CLK_ID_MCLK_3] = Q6AFE_CLK(LPASS_CLK_ID_MCLK_3),
- [LPASS_CLK_ID_MCLK_4] = Q6AFE_CLK(LPASS_CLK_ID_MCLK_4),
- [LPASS_CLK_ID_INTERNAL_DIGITAL_CODEC_CORE] =
- Q6AFE_CLK(LPASS_CLK_ID_INTERNAL_DIGITAL_CODEC_CORE),
- [LPASS_CLK_ID_INT_MCLK_0] = Q6AFE_CLK(LPASS_CLK_ID_INT_MCLK_0),
- [LPASS_CLK_ID_INT_MCLK_1] = Q6AFE_CLK(LPASS_CLK_ID_INT_MCLK_1),
- [LPASS_CLK_ID_WSA_CORE_MCLK] = Q6AFE_CLK(LPASS_CLK_ID_WSA_CORE_MCLK),
- [LPASS_CLK_ID_WSA_CORE_NPL_MCLK] =
- Q6AFE_CLK(LPASS_CLK_ID_WSA_CORE_NPL_MCLK),
- [LPASS_CLK_ID_VA_CORE_MCLK] = Q6AFE_CLK(LPASS_CLK_ID_VA_CORE_MCLK),
- [LPASS_CLK_ID_TX_CORE_MCLK] = Q6AFE_CLK(LPASS_CLK_ID_TX_CORE_MCLK),
- [LPASS_CLK_ID_TX_CORE_NPL_MCLK] =
- Q6AFE_CLK(LPASS_CLK_ID_TX_CORE_NPL_MCLK),
- [LPASS_CLK_ID_RX_CORE_MCLK] = Q6AFE_CLK(LPASS_CLK_ID_RX_CORE_MCLK),
- [LPASS_CLK_ID_RX_CORE_NPL_MCLK] =
- Q6AFE_CLK(LPASS_CLK_ID_RX_CORE_NPL_MCLK),
- [LPASS_CLK_ID_VA_CORE_2X_MCLK] =
- Q6AFE_CLK(LPASS_CLK_ID_VA_CORE_2X_MCLK),
- [LPASS_HW_AVTIMER_VOTE] = Q6AFE_VOTE_CLK(LPASS_HW_AVTIMER_VOTE,
- Q6AFE_LPASS_CORE_AVTIMER_BLOCK,
- "LPASS_AVTIMER_MACRO"),
- [LPASS_HW_MACRO_VOTE] = Q6AFE_VOTE_CLK(LPASS_HW_MACRO_VOTE,
- Q6AFE_LPASS_CORE_HW_MACRO_BLOCK,
- "LPASS_HW_MACRO"),
- [LPASS_HW_DCODEC_VOTE] = Q6AFE_VOTE_CLK(LPASS_HW_DCODEC_VOTE,
- Q6AFE_LPASS_CORE_HW_DCODEC_BLOCK,
- "LPASS_HW_DCODEC"),
+static const struct q6afe_clk_init q6afe_clks[] = {
+ Q6AFE_CLK(LPASS_CLK_ID_PRI_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_PRI_MI2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEC_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEC_MI2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_TER_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_TER_MI2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUAD_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUAD_MI2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SPEAKER_I2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SPEAKER_I2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SPEAKER_I2S_OSR),
+ Q6AFE_CLK(LPASS_CLK_ID_QUI_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUI_MI2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEN_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEN_MI2S_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT0_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT1_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT2_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT3_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT4_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT5_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_INT6_MI2S_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUI_MI2S_OSR),
+ Q6AFE_CLK(LPASS_CLK_ID_PRI_PCM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_PRI_PCM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEC_PCM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEC_PCM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_TER_PCM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_TER_PCM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUAD_PCM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUAD_PCM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUIN_PCM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUIN_PCM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUI_PCM_OSR),
+ Q6AFE_CLK(LPASS_CLK_ID_PRI_TDM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_PRI_TDM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEC_TDM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_SEC_TDM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_TER_TDM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_TER_TDM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUAD_TDM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUAD_TDM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUIN_TDM_IBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUIN_TDM_EBIT),
+ Q6AFE_CLK(LPASS_CLK_ID_QUIN_TDM_OSR),
+ Q6AFE_CLK(LPASS_CLK_ID_MCLK_1),
+ Q6AFE_CLK(LPASS_CLK_ID_MCLK_2),
+ Q6AFE_CLK(LPASS_CLK_ID_MCLK_3),
+ Q6AFE_CLK(LPASS_CLK_ID_MCLK_4),
+ Q6AFE_CLK(LPASS_CLK_ID_INTERNAL_DIGITAL_CODEC_CORE),
+ Q6AFE_CLK(LPASS_CLK_ID_INT_MCLK_0),
+ Q6AFE_CLK(LPASS_CLK_ID_INT_MCLK_1),
+ Q6AFE_CLK(LPASS_CLK_ID_WSA_CORE_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_WSA_CORE_NPL_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_VA_CORE_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_TX_CORE_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_TX_CORE_NPL_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_RX_CORE_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_RX_CORE_NPL_MCLK),
+ Q6AFE_CLK(LPASS_CLK_ID_VA_CORE_2X_MCLK),
+ Q6AFE_VOTE_CLK(LPASS_HW_AVTIMER_VOTE,
+ Q6AFE_LPASS_CORE_AVTIMER_BLOCK,
+ "LPASS_AVTIMER_MACRO"),
+ Q6AFE_VOTE_CLK(LPASS_HW_MACRO_VOTE,
+ Q6AFE_LPASS_CORE_HW_MACRO_BLOCK,
+ "LPASS_HW_MACRO"),
+ Q6AFE_VOTE_CLK(LPASS_HW_DCODEC_VOTE,
+ Q6AFE_LPASS_CORE_HW_DCODEC_BLOCK,
+ "LPASS_HW_DCODEC"),
};
static struct clk_hw *q6afe_of_clk_hw_get(struct of_phandle_args *clkspec,
@@ -207,7 +194,7 @@ static struct clk_hw *q6afe_of_clk_hw_get(struct of_phandle_args *clkspec,
unsigned int idx = clkspec->args[0];
unsigned int attr = clkspec->args[1];
- if (idx >= cc->num_clks || attr > LPASS_CLK_ATTRIBUTE_COUPLE_DIVISOR) {
+ if (idx >= Q6AFE_MAX_CLK_ID || attr > LPASS_CLK_ATTRIBUTE_COUPLE_DIVISOR) {
dev_err(cc->dev, "Invalid clk specifier (%d, %d)\n", idx, attr);
return ERR_PTR(-EINVAL);
}
@@ -230,20 +217,36 @@ static int q6afe_clock_dev_probe(struct platform_device *pdev)
if (!cc)
return -ENOMEM;
- cc->clks = &q6afe_clks[0];
- cc->num_clks = ARRAY_SIZE(q6afe_clks);
+ cc->dev = dev;
for (i = 0; i < ARRAY_SIZE(q6afe_clks); i++) {
- if (!q6afe_clks[i])
- continue;
+ unsigned int id = q6afe_clks[i].clk_id;
+ struct clk_init_data init = {
+ .name = q6afe_clks[i].name,
+ };
+ struct q6afe_clk *clk;
+
+ clk = devm_kzalloc(dev, sizeof(*clk), GFP_KERNEL);
+ if (!clk)
+ return -ENOMEM;
+
+ clk->dev = dev;
+ clk->afe_clk_id = q6afe_clks[i].afe_clk_id;
+ clk->rate = q6afe_clks[i].rate;
+ clk->hw.init = &init;
+
+ if (clk->rate)
+ init.ops = &clk_q6afe_ops;
+ else
+ init.ops = &clk_vote_q6afe_ops;
- q6afe_clks[i]->dev = dev;
+ cc->clks[id] = clk;
- ret = devm_clk_hw_register(dev, &q6afe_clks[i]->hw);
+ ret = devm_clk_hw_register(dev, &clk->hw);
if (ret)
return ret;
}
- ret = of_clk_add_hw_provider(dev->of_node, q6afe_of_clk_hw_get, cc);
+ ret = devm_of_clk_add_hw_provider(dev, q6afe_of_clk_hw_get, cc);
if (ret)
return ret;
diff --git a/sound/soc/qcom/qdsp6/q6afe.c b/sound/soc/qcom/qdsp6/q6afe.c
index daa58b5f941e..6b9ade3dfe5b 100644
--- a/sound/soc/qcom/qdsp6/q6afe.c
+++ b/sound/soc/qcom/qdsp6/q6afe.c
@@ -1681,7 +1681,7 @@ int q6afe_unvote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
EXPORT_SYMBOL(q6afe_unvote_lpass_core_hw);
int q6afe_vote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
- char *client_name, uint32_t *client_handle)
+ const char *client_name, uint32_t *client_handle)
{
struct q6afe *afe = dev_get_drvdata(dev->parent);
struct afe_cmd_remote_lpass_core_hw_vote_request *vote_cfg;
diff --git a/sound/soc/qcom/qdsp6/q6afe.h b/sound/soc/qcom/qdsp6/q6afe.h
index 22e10269aa10..3845b56c0ed3 100644
--- a/sound/soc/qcom/qdsp6/q6afe.h
+++ b/sound/soc/qcom/qdsp6/q6afe.h
@@ -236,7 +236,7 @@ int q6afe_port_set_sysclk(struct q6afe_port *port, int clk_id,
int q6afe_set_lpass_clock(struct device *dev, int clk_id, int clk_src,
int clk_root, unsigned int freq);
int q6afe_vote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
- char *client_name, uint32_t *client_handle);
+ const char *client_name, uint32_t *client_handle);
int q6afe_unvote_lpass_core_hw(struct device *dev, uint32_t hw_block_id,
uint32_t client_handle);
#endif /* __Q6AFE_H__ */
--
2.30.2
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