[PATCH v6 10/22] ASoC: qdsp6: q6afe-clocks: move audio-clocks to common file
Srinivas Kandagatla
srinivas.kandagatla at linaro.org
Wed Sep 15 15:13:21 CEST 2021
Move common parts of q6afe-clocks to q6dsp-lpass-clocks so that we could
reuse most of the driver for new Q6DSP audio frameworks.
This is to make the code reuseable for new Q6DSP AudioReach framework.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
sound/soc/qcom/qdsp6/Makefile | 2 +-
sound/soc/qcom/qdsp6/q6afe-clocks.c | 187 ++--------------------
sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.c | 186 +++++++++++++++++++++
sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.h | 30 ++++
4 files changed, 232 insertions(+), 173 deletions(-)
create mode 100644 sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.c
create mode 100644 sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.h
diff --git a/sound/soc/qcom/qdsp6/Makefile b/sound/soc/qcom/qdsp6/Makefile
index 11e8705bbc5c..a4191d395557 100644
--- a/sound/soc/qcom/qdsp6/Makefile
+++ b/sound/soc/qcom/qdsp6/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-snd-q6dsp-common-objs := q6dsp-common.o q6dsp-lpass-ports.o
+snd-q6dsp-common-objs := q6dsp-common.o q6dsp-lpass-ports.o q6dsp-lpass-clocks.o
obj-$(CONFIG_SND_SOC_QDSP6_COMMON) += snd-q6dsp-common.o
obj-$(CONFIG_SND_SOC_QDSP6_CORE) += q6core.o
diff --git a/sound/soc/qcom/qdsp6/q6afe-clocks.c b/sound/soc/qcom/qdsp6/q6afe-clocks.c
index 9431656283cd..1ccab64ff00b 100644
--- a/sound/soc/qcom/qdsp6/q6afe-clocks.c
+++ b/sound/soc/qcom/qdsp6/q6afe-clocks.c
@@ -7,115 +7,18 @@
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/slab.h>
+#include "q6dsp-lpass-clocks.h"
#include "q6afe.h"
#define Q6AFE_CLK(id) { \
.clk_id = id, \
- .afe_clk_id = Q6AFE_##id, \
+ .q6dsp_clk_id = Q6AFE_##id, \
.name = #id, \
.rate = 19200000, \
}
-#define Q6AFE_VOTE_CLK(id, blkid, n) { \
- .clk_id = id, \
- .afe_clk_id = blkid, \
- .name = n, \
- }
-
-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;
- struct clk_hw hw;
-};
-
-#define to_q6afe_clk(_hw) container_of(_hw, struct q6afe_clk, hw)
-
-struct q6afe_cc {
- struct device *dev;
- struct q6afe_clk *clks[Q6AFE_MAX_CLK_ID];
-};
-
-static int clk_q6afe_prepare(struct clk_hw *hw)
-{
- struct q6afe_clk *clk = to_q6afe_clk(hw);
-
- return q6afe_set_lpass_clock(clk->dev, clk->afe_clk_id, clk->attributes,
- Q6AFE_LPASS_CLK_ROOT_DEFAULT, clk->rate);
-}
-
-static void clk_q6afe_unprepare(struct clk_hw *hw)
-{
- struct q6afe_clk *clk = to_q6afe_clk(hw);
-
- q6afe_set_lpass_clock(clk->dev, clk->afe_clk_id, clk->attributes,
- Q6AFE_LPASS_CLK_ROOT_DEFAULT, 0);
-}
-
-static int clk_q6afe_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- struct q6afe_clk *clk = to_q6afe_clk(hw);
-
- clk->rate = rate;
-
- return 0;
-}
-
-static unsigned long clk_q6afe_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
-{
- struct q6afe_clk *clk = to_q6afe_clk(hw);
-
- return clk->rate;
-}
-
-static long clk_q6afe_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *parent_rate)
-{
- return rate;
-}
-
-static const struct clk_ops clk_q6afe_ops = {
- .prepare = clk_q6afe_prepare,
- .unprepare = clk_q6afe_unprepare,
- .set_rate = clk_q6afe_set_rate,
- .round_rate = clk_q6afe_round_rate,
- .recalc_rate = clk_q6afe_recalc_rate,
-};
-
-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_hw_get_name(&clk->hw), &clk->handle);
-}
-static void clk_unvote_q6afe_block(struct clk_hw *hw)
-{
- struct q6afe_clk *clk = to_q6afe_clk(hw);
-
- q6afe_unvote_lpass_core_hw(clk->dev, clk->afe_clk_id, clk->handle);
-}
-
-static const struct clk_ops clk_vote_q6afe_ops = {
- .prepare = clk_vote_q6afe_block,
- .unprepare = clk_unvote_q6afe_block,
-};
-
-static const struct q6afe_clk_init q6afe_clks[] = {
+static const struct q6dsp_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),
@@ -176,88 +79,28 @@ static const struct q6afe_clk_init q6afe_clks[] = {
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,
+ Q6DSP_VOTE_CLK(LPASS_HW_AVTIMER_VOTE,
Q6AFE_LPASS_CORE_AVTIMER_BLOCK,
"LPASS_AVTIMER_MACRO"),
- Q6AFE_VOTE_CLK(LPASS_HW_MACRO_VOTE,
+ Q6DSP_VOTE_CLK(LPASS_HW_MACRO_VOTE,
Q6AFE_LPASS_CORE_HW_MACRO_BLOCK,
"LPASS_HW_MACRO"),
- Q6AFE_VOTE_CLK(LPASS_HW_DCODEC_VOTE,
+ Q6DSP_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,
- void *data)
-{
- struct q6afe_cc *cc = data;
- unsigned int idx = clkspec->args[0];
- unsigned int attr = clkspec->args[1];
-
- 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);
- }
-
- if (cc->clks[idx]) {
- cc->clks[idx]->attributes = attr;
- return &cc->clks[idx]->hw;
- }
-
- return ERR_PTR(-ENOENT);
-}
-
-static int q6afe_clock_dev_probe(struct platform_device *pdev)
-{
- struct q6afe_cc *cc;
- struct device *dev = &pdev->dev;
- int i, ret;
-
- cc = devm_kzalloc(dev, sizeof(*cc), GFP_KERNEL);
- if (!cc)
- return -ENOMEM;
-
- cc->dev = dev;
- for (i = 0; i < ARRAY_SIZE(q6afe_clks); i++) {
- 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;
-
- cc->clks[id] = clk;
-
- ret = devm_clk_hw_register(dev, &clk->hw);
- if (ret)
- return ret;
- }
-
- ret = devm_of_clk_add_hw_provider(dev, q6afe_of_clk_hw_get, cc);
- if (ret)
- return ret;
-
- dev_set_drvdata(dev, cc);
-
- return 0;
-}
+static const struct q6dsp_clk_desc q6dsp_clk_q6afe __maybe_unused = {
+ .clks = q6afe_clks,
+ .num_clks = ARRAY_SIZE(q6afe_clks),
+ .lpass_set_clk = q6afe_set_lpass_clock,
+ .lpass_vote_clk = q6afe_vote_lpass_core_hw,
+ .lpass_unvote_clk = q6afe_unvote_lpass_core_hw,
+};
#ifdef CONFIG_OF
static const struct of_device_id q6afe_clock_device_id[] = {
- { .compatible = "qcom,q6afe-clocks" },
+ { .compatible = "qcom,q6afe-clocks", .data = &q6dsp_clk_q6afe },
{},
};
MODULE_DEVICE_TABLE(of, q6afe_clock_device_id);
@@ -268,7 +111,7 @@ static struct platform_driver q6afe_clock_platform_driver = {
.name = "q6afe-clock",
.of_match_table = of_match_ptr(q6afe_clock_device_id),
},
- .probe = q6afe_clock_dev_probe,
+ .probe = q6dsp_clock_dev_probe,
};
module_platform_driver(q6afe_clock_platform_driver);
diff --git a/sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.c b/sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.c
new file mode 100644
index 000000000000..4613867d1133
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020, Linaro Limited
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
+#include "q6dsp-lpass-clocks.h"
+
+#define Q6DSP_MAX_CLK_ID 104
+#define Q6DSP_LPASS_CLK_ROOT_DEFAULT 0
+
+
+struct q6dsp_clk {
+ struct device *dev;
+ int q6dsp_clk_id;
+ int attributes;
+ int rate;
+ uint32_t handle;
+ struct clk_hw hw;
+};
+
+#define to_q6dsp_clk(_hw) container_of(_hw, struct q6dsp_clk, hw)
+
+struct q6dsp_cc {
+ struct device *dev;
+ struct q6dsp_clk *clks[Q6DSP_MAX_CLK_ID];
+ const struct q6dsp_clk_desc *desc;
+};
+
+static int clk_q6dsp_prepare(struct clk_hw *hw)
+{
+ struct q6dsp_clk *clk = to_q6dsp_clk(hw);
+ struct q6dsp_cc *cc = dev_get_drvdata(clk->dev);
+
+ return cc->desc->lpass_set_clk(clk->dev, clk->q6dsp_clk_id, clk->attributes,
+ Q6DSP_LPASS_CLK_ROOT_DEFAULT, clk->rate);
+}
+
+static void clk_q6dsp_unprepare(struct clk_hw *hw)
+{
+ struct q6dsp_clk *clk = to_q6dsp_clk(hw);
+ struct q6dsp_cc *cc = dev_get_drvdata(clk->dev);
+
+ cc->desc->lpass_set_clk(clk->dev, clk->q6dsp_clk_id, clk->attributes,
+ Q6DSP_LPASS_CLK_ROOT_DEFAULT, 0);
+}
+
+static int clk_q6dsp_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct q6dsp_clk *clk = to_q6dsp_clk(hw);
+
+ clk->rate = rate;
+
+ return 0;
+}
+
+static unsigned long clk_q6dsp_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct q6dsp_clk *clk = to_q6dsp_clk(hw);
+
+ return clk->rate;
+}
+
+static long clk_q6dsp_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ return rate;
+}
+
+static const struct clk_ops clk_q6dsp_ops = {
+ .prepare = clk_q6dsp_prepare,
+ .unprepare = clk_q6dsp_unprepare,
+ .set_rate = clk_q6dsp_set_rate,
+ .round_rate = clk_q6dsp_round_rate,
+ .recalc_rate = clk_q6dsp_recalc_rate,
+};
+
+static int clk_vote_q6dsp_block(struct clk_hw *hw)
+{
+ struct q6dsp_clk *clk = to_q6dsp_clk(hw);
+ struct q6dsp_cc *cc = dev_get_drvdata(clk->dev);
+
+ return cc->desc->lpass_vote_clk(clk->dev, clk->q6dsp_clk_id,
+ clk_hw_get_name(&clk->hw), &clk->handle);
+}
+
+static void clk_unvote_q6dsp_block(struct clk_hw *hw)
+{
+ struct q6dsp_clk *clk = to_q6dsp_clk(hw);
+ struct q6dsp_cc *cc = dev_get_drvdata(clk->dev);
+
+ cc->desc->lpass_unvote_clk(clk->dev, clk->q6dsp_clk_id, clk->handle);
+}
+
+static const struct clk_ops clk_vote_q6dsp_ops = {
+ .prepare = clk_vote_q6dsp_block,
+ .unprepare = clk_unvote_q6dsp_block,
+};
+
+
+static struct clk_hw *q6dsp_of_clk_hw_get(struct of_phandle_args *clkspec,
+ void *data)
+{
+ struct q6dsp_cc *cc = data;
+ unsigned int idx = clkspec->args[0];
+ unsigned int attr = clkspec->args[1];
+
+ if (idx >= Q6DSP_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);
+ }
+
+ if (cc->clks[idx]) {
+ cc->clks[idx]->attributes = attr;
+ return &cc->clks[idx]->hw;
+ }
+
+ return ERR_PTR(-ENOENT);
+}
+
+int q6dsp_clock_dev_probe(struct platform_device *pdev)
+{
+ struct q6dsp_cc *cc;
+ struct device *dev = &pdev->dev;
+ const struct q6dsp_clk_init *q6dsp_clks;
+ const struct q6dsp_clk_desc *desc;
+ int i, ret;
+
+ cc = devm_kzalloc(dev, sizeof(*cc), GFP_KERNEL);
+ if (!cc)
+ return -ENOMEM;
+
+ desc = of_device_get_match_data(&pdev->dev);
+ if (!desc)
+ return -EINVAL;
+
+ cc->desc = desc;
+ cc->dev = dev;
+ q6dsp_clks = desc->clks;
+
+ for (i = 0; i < desc->num_clks; i++) {
+ unsigned int id = q6dsp_clks[i].clk_id;
+ struct clk_init_data init = {
+ .name = q6dsp_clks[i].name,
+ };
+ struct q6dsp_clk *clk;
+
+ clk = devm_kzalloc(dev, sizeof(*clk), GFP_KERNEL);
+ if (!clk)
+ return -ENOMEM;
+
+ clk->dev = dev;
+ clk->q6dsp_clk_id = q6dsp_clks[i].q6dsp_clk_id;
+ clk->rate = q6dsp_clks[i].rate;
+ clk->hw.init = &init;
+
+ if (clk->rate)
+ init.ops = &clk_q6dsp_ops;
+ else
+ init.ops = &clk_vote_q6dsp_ops;
+
+ cc->clks[id] = clk;
+
+ ret = devm_clk_hw_register(dev, &clk->hw);
+ if (ret)
+ return ret;
+ }
+
+ ret = devm_of_clk_add_hw_provider(dev, q6dsp_of_clk_hw_get, cc);
+ if (ret)
+ return ret;
+
+ dev_set_drvdata(dev, cc);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(q6dsp_clock_dev_probe);
diff --git a/sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.h b/sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.h
new file mode 100644
index 000000000000..3770d81f2bd6
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __Q6DSP_AUDIO_CLOCKS_H__
+#define __Q6DSP_AUDIO_CLOCKS_H__
+
+struct q6dsp_clk_init {
+ int clk_id;
+ int q6dsp_clk_id;
+ char *name;
+ int rate;
+};
+
+#define Q6DSP_VOTE_CLK(id, blkid, n) { \
+ .clk_id = id, \
+ .q6dsp_clk_id = blkid, \
+ .name = n, \
+ }
+
+struct q6dsp_clk_desc {
+ const struct q6dsp_clk_init *clks;
+ size_t num_clks;
+ int (*lpass_set_clk)(struct device *dev, int clk_id, int attr,
+ int root_clk, unsigned int freq);
+ int (*lpass_vote_clk)(struct device *dev, uint32_t hid, const char *n, uint32_t *h);
+ int (*lpass_unvote_clk)(struct device *dev, uint32_t hid, uint32_t h);
+};
+
+int q6dsp_clock_dev_probe(struct platform_device *pdev);
+
+#endif /* __Q6DSP_AUDIO_CLOCKS_H__ */
--
2.21.0
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