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@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__ */