[alsa-devel] [PATCH v4 00/14] MFD/ASoC/Input: twl4030-audio submodule DT support
Hello,
Generated on top of: git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git topic/omap
Changes since v3: - Added Acked-by from Tony and Dmitry - Removed #ifdef around of_find_node_by_name() in the drivers
Changed since v2: - Added commit message to patch 2 (as Tero requested it) - Fixed patch 6 (dt: Add empty...) since the previous patch caused x86_64 build to fail due to missing struct before device_node.
Changes since v1: - Get the MCLK frequencey from twl-core driver (via new API) - hs_extmute_disable_level parameter has been removed - empty of_find_node_by_name() in of.h for !CONFIG_OF builds
Mark: the extmute GPIO handling (when it is used) remained in the codec driver for now. I can think more on how to add support for this type of mute control. If you can point me to other codec needing this it would help on designing something which is common enough for other users.
As for now I have a separate series to add GPIO controlled output amps (hp/spk). I will send that to review soon. Currently this piece of code does not work when booted with device tree since I have done it on n900 which has the GPIO numbers as defines. I need to revisit the aproach on how to do it in a dynamic way.
Introl mail from v1:
The following series adds DT support for the twl4030 audio submodule which provides audio codec and vibra functionality.
The MFD core driver is probed via DT, it will create the needed child devices based on the provided information in the DT blob. Child drivers (vibra, ASoC codec) will parse the core's node if needed to get the needed parameters for their configuration.
In the ASoC codec driver the hs_extmute callback (which was used to toggle a GPIO line) has been removed. The codec driver will receive the GPIO number (if it is needed on the platform).
If the series is OK (and no objections from the maintainers), it would be good if this can go via audio. Changed files are well contained within the twl4030-audio stack so I do not expect merge issues later.
The series has been tested on BeagleBoard (with the McBSP DT series, and with the upcoming DT audio support for BeagleBoard).
Regards, Peter --- Peter Ujfalusi (14): MFD: twl4030-audio: Clean up MODULE_* and platform_driver part MFD: twl4030-audio: Convert to use devm_kzalloc MFD: twl4030-audio: Rearange and clean-up the probe function MFD: twl-core: Add API to query the HFCLK rate MFD: twl4030-audio: Get audio MCLK via twl-core API instead of pdata dt: Add empty of_find_node_by_name() function MFD: twl4030-audio: Add DT support Input: twl4030-vibra: Support for DT booted kernel ASoC: twl4030: Move hs_extmute GPIO handling to driver ARM: OMAP/ASoC: Zoom2: Let the codec to handle the hs_extmute GPIO ASoC/MFD: twl4030: Remove set_hs_extmute callback from platform data ASoC: twl4030: Convert to use devm_kzalloc ASoC: twl4030: Add pointer to pdata within the private data ASoC: twl4030: Support for DT booted kernel
.../devicetree/bindings/mfd/twl4030-audio.txt | 46 +++++++++ arch/arm/mach-omap2/board-zoom-peripherals.c | 9 +- arch/arm/mach-omap2/include/mach/board-zoom.h | 2 - drivers/input/misc/twl4030-vibra.c | 18 +++- drivers/mfd/twl-core.c | 32 +++++++ drivers/mfd/twl4030-audio.c | 105 ++++++++++++++------- include/linux/i2c/twl.h | 3 +- include/linux/of.h | 6 ++ sound/soc/codecs/twl4030.c | 101 ++++++++++++++++---- sound/soc/omap/zoom2.c | 4 - 10 files changed, 255 insertions(+), 71 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/twl4030-audio.txt
Place the MODULE_* lines in the same block and add MODULE_DESCRIPTION. Rearange the platform_driver structure at the same time.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- drivers/mfd/twl4030-audio.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c index 838ce4e..ac04b4f 100644 --- a/drivers/mfd/twl4030-audio.c +++ b/drivers/mfd/twl4030-audio.c @@ -250,18 +250,18 @@ static int __devexit twl4030_audio_remove(struct platform_device *pdev) return 0; }
-MODULE_ALIAS("platform:twl4030-audio"); - static struct platform_driver twl4030_audio_driver = { - .probe = twl4030_audio_probe, - .remove = __devexit_p(twl4030_audio_remove), .driver = { .owner = THIS_MODULE, .name = "twl4030-audio", }, + .probe = twl4030_audio_probe, + .remove = __devexit_p(twl4030_audio_remove), };
module_platform_driver(twl4030_audio_driver);
MODULE_AUTHOR("Peter Ujfalusi peter.ujfalusi@ti.com"); +MODULE_DESCRIPTION("TWL4030 audio block MFD driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:twl4030-audio");
To clean up the module probe and remove functions.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- drivers/mfd/twl4030-audio.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c index ac04b4f..efa2d42 100644 --- a/drivers/mfd/twl4030-audio.c +++ b/drivers/mfd/twl4030-audio.c @@ -188,7 +188,8 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, val, TWL4030_REG_APLL_CTL);
- audio = kzalloc(sizeof(struct twl4030_audio), GFP_KERNEL); + audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio), + GFP_KERNEL); if (!audio) return -ENOMEM;
@@ -229,22 +230,18 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) ret = -ENODEV; }
- if (!ret) - return 0; + if (ret) { + platform_set_drvdata(pdev, NULL); + twl4030_audio_dev = NULL; + }
- platform_set_drvdata(pdev, NULL); - kfree(audio); - twl4030_audio_dev = NULL; return ret; }
static int __devexit twl4030_audio_remove(struct platform_device *pdev) { - struct twl4030_audio *audio = platform_get_drvdata(pdev); - mfd_remove_devices(&pdev->dev); platform_set_drvdata(pdev, NULL); - kfree(audio); twl4030_audio_dev = NULL;
return 0;
To facilitate the device tree support the probe function need to be rearanged. Small cleanup in the APLL frequency selection part as well.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- drivers/mfd/twl4030-audio.c | 34 ++++++++++++++++------------------ 1 file changed, 16 insertions(+), 18 deletions(-)
diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c index efa2d42..ca2d669 100644 --- a/drivers/mfd/twl4030-audio.c +++ b/drivers/mfd/twl4030-audio.c @@ -169,35 +169,30 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) return -EINVAL; }
+ audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio), + GFP_KERNEL); + if (!audio) + return -ENOMEM; + + mutex_init(&audio->mutex); + audio->audio_mclk = pdata->audio_mclk; + /* Configure APLL_INFREQ and disable APLL if enabled */ - val = 0; - switch (pdata->audio_mclk) { + switch (audio->audio_mclk) { case 19200000: - val |= TWL4030_APLL_INFREQ_19200KHZ; + val = TWL4030_APLL_INFREQ_19200KHZ; break; case 26000000: - val |= TWL4030_APLL_INFREQ_26000KHZ; + val = TWL4030_APLL_INFREQ_26000KHZ; break; case 38400000: - val |= TWL4030_APLL_INFREQ_38400KHZ; + val = TWL4030_APLL_INFREQ_38400KHZ; break; default: dev_err(&pdev->dev, "Invalid audio_mclk\n"); return -EINVAL; } - twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, - val, TWL4030_REG_APLL_CTL); - - audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio), - GFP_KERNEL); - if (!audio) - return -ENOMEM; - - platform_set_drvdata(pdev, audio); - - twl4030_audio_dev = pdev; - mutex_init(&audio->mutex); - audio->audio_mclk = pdata->audio_mclk; + twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, val, TWL4030_REG_APLL_CTL);
/* Codec power */ audio->resource[TWL4030_AUDIO_RES_POWER].reg = TWL4030_REG_CODEC_MODE; @@ -222,6 +217,9 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) childs++; }
+ platform_set_drvdata(pdev, audio); + twl4030_audio_dev = pdev; + if (childs) ret = mfd_add_devices(&pdev->dev, pdev->id, audio->cells, childs, NULL, 0);
CFG_BOOT register's HFCLK_FREQ field hold information about the used HFCLK frequency. Add possibility for users to get the configured rate based on this register. This register was configured during boot, without it the chip would not operate correctly, so we can trust on this information.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- drivers/mfd/twl-core.c | 32 ++++++++++++++++++++++++++++++++ include/linux/i2c/twl.h | 1 + 2 files changed, 33 insertions(+)
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 1c32afe..f162b68 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -552,6 +552,38 @@ int twl_get_version(void) } EXPORT_SYMBOL_GPL(twl_get_version);
+/** + * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate. + * + * Api to get the TWL HFCLK rate based on BOOT_CFG register. + */ +int twl_get_hfclk_rate(void) +{ + u8 ctrl; + int rate; + + twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT); + + switch (ctrl & 0x3) { + case HFCLK_FREQ_19p2_MHZ: + rate = 19200000; + break; + case HFCLK_FREQ_26_MHZ: + rate = 26000000; + break; + case HFCLK_FREQ_38p4_MHZ: + rate = 38400000; + break; + default: + pr_err("TWL4030: HFCLK is not configured\n"); + rate = -EINVAL; + break; + } + + return rate; +} +EXPORT_SYMBOL_GPL(twl_get_hfclk_rate); + static struct device * add_numbered_child(unsigned chip, const char *name, int num, void *pdata, unsigned pdata_len, diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 7ea898c..ac6488c 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -188,6 +188,7 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes);
int twl_get_type(void); int twl_get_version(void); +int twl_get_hfclk_rate(void);
int twl6030_interrupt_unmask(u8 bit_mask, u8 offset); int twl6030_interrupt_mask(u8 bit_mask, u8 offset);
twl-core has API to get the boot time configured HFCLK rate which has the same rate as the audio MCLK.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- drivers/mfd/twl4030-audio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c index ca2d669..a48bf3a 100644 --- a/drivers/mfd/twl4030-audio.c +++ b/drivers/mfd/twl4030-audio.c @@ -175,7 +175,7 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) return -ENOMEM;
mutex_init(&audio->mutex); - audio->audio_mclk = pdata->audio_mclk; + audio->audio_mclk = twl_get_hfclk_rate();
/* Configure APLL_INFREQ and disable APLL if enabled */ switch (audio->audio_mclk) {
This commit adds an empty of_find_node_by_name() function for !CONFIG_OF builds.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- include/linux/of.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/of.h b/include/linux/of.h index 1b11632..5c7a158 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -315,6 +315,12 @@ static inline const char* of_node_full_name(struct device_node *np) return "<no-node>"; }
+static inline struct device_node *of_find_node_by_name(struct device_node *from, + const char *name) +{ + return NULL; +} + static inline bool of_have_populated_dt(void) { return false;
Support for loading the twl4030 audio module via devicetree. Sub devices for codec and vibra will be created as mfd devices once the core MFD driver is loaded when the kernel is booted with a DT blob.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- .../devicetree/bindings/mfd/twl4030-audio.txt | 46 ++++++++++++++++++ drivers/mfd/twl4030-audio.c | 54 +++++++++++++++++++--- 2 files changed, 93 insertions(+), 7 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/twl4030-audio.txt
diff --git a/Documentation/devicetree/bindings/mfd/twl4030-audio.txt b/Documentation/devicetree/bindings/mfd/twl4030-audio.txt new file mode 100644 index 0000000..414d2ae --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/twl4030-audio.txt @@ -0,0 +1,46 @@ +Texas Instruments TWL family (twl4030) audio module + +The audio module inside the TWL family consist of an audio codec and a vibra +driver. + +Required properties: +- compatible : must be "ti,twl4030-audio" + +Optional properties, nodes: + +Audio functionality: +- codec { }: Need to be present if the audio functionality is used. Within this + section the following options can be used: +- ti,digimic_delay: Delay need after enabling the digimic to reduce artifacts + from the start of the recorded sample (in ms) +-ti,ramp_delay_value: HS ramp delay configuration to reduce pop noise +-ti,hs_extmute: Use external mute for HS pop reduction +-ti,hs_extmute_gpio: Use external GPIO to control the external mute +-ti,offset_cncl_path: Offset cancellation path selection, refer to TRM for the + valid values. + +Vibra functionality +- ti,enable-vibra: Need to be set to <1> if the vibra functionality is used. if + missing or it is 0, the vibra functionality is disabled. + +Example: +&i2c1 { + clock-frequency = <2600000>; + + twl: twl@48 { + reg = <0x48>; + interrupts = <7>; /* SYS_NIRQ cascaded to intc */ + interrupt-parent = <&intc>; + + twl_audio: audio { + compatible = "ti,twl4030-audio"; + + ti,enable-vibra = <1>; + + codec { + ti,ramp_delay_value = <3>; + }; + + }; + }; +}; diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c index a48bf3a..58e6c22 100644 --- a/drivers/mfd/twl4030-audio.c +++ b/drivers/mfd/twl4030-audio.c @@ -28,6 +28,8 @@ #include <linux/kernel.h> #include <linux/fs.h> #include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_platform.h> #include <linux/i2c/twl.h> #include <linux/mfd/core.h> #include <linux/mfd/twl4030-audio.h> @@ -156,15 +158,42 @@ unsigned int twl4030_audio_get_mclk(void) } EXPORT_SYMBOL_GPL(twl4030_audio_get_mclk);
+static bool twl4030_audio_has_codec(struct twl4030_audio_data *pdata, + struct device_node *node) +{ + if (pdata && pdata->codec) + return true; + + if (of_find_node_by_name(node, "codec")) + return true; + + return false; +} + +static bool twl4030_audio_has_vibra(struct twl4030_audio_data *pdata, + struct device_node *node) +{ + int vibra; + + if (pdata && pdata->vibra) + return true; + + if (!of_property_read_u32(node, "ti,enable-vibra", &vibra) && vibra) + return true; + + return false; +} + static int __devinit twl4030_audio_probe(struct platform_device *pdev) { struct twl4030_audio *audio; struct twl4030_audio_data *pdata = pdev->dev.platform_data; + struct device_node *node = pdev->dev.of_node; struct mfd_cell *cell = NULL; int ret, childs = 0; u8 val;
- if (!pdata) { + if (!pdata && !node) { dev_err(&pdev->dev, "Platform data is missing\n"); return -EINVAL; } @@ -202,18 +231,22 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev) audio->resource[TWL4030_AUDIO_RES_APLL].reg = TWL4030_REG_APLL_CTL; audio->resource[TWL4030_AUDIO_RES_APLL].mask = TWL4030_APLL_EN;
- if (pdata->codec) { + if (twl4030_audio_has_codec(pdata, node)) { cell = &audio->cells[childs]; cell->name = "twl4030-codec"; - cell->platform_data = pdata->codec; - cell->pdata_size = sizeof(*pdata->codec); + if (pdata) { + cell->platform_data = pdata->codec; + cell->pdata_size = sizeof(*pdata->codec); + } childs++; } - if (pdata->vibra) { + if (twl4030_audio_has_vibra(pdata, node)) { cell = &audio->cells[childs]; cell->name = "twl4030-vibra"; - cell->platform_data = pdata->vibra; - cell->pdata_size = sizeof(*pdata->vibra); + if (pdata) { + cell->platform_data = pdata->vibra; + cell->pdata_size = sizeof(*pdata->vibra); + } childs++; }
@@ -245,10 +278,17 @@ static int __devexit twl4030_audio_remove(struct platform_device *pdev) return 0; }
+static const struct of_device_id twl4030_audio_of_match[] = { + {.compatible = "ti,twl4030-audio", }, + { }, +}; +MODULE_DEVICE_TABLE(of, twl4030_audio_of_match); + static struct platform_driver twl4030_audio_driver = { .driver = { .owner = THIS_MODULE, .name = "twl4030-audio", + .of_match_table = twl4030_audio_of_match, }, .probe = twl4030_audio_probe, .remove = __devexit_p(twl4030_audio_remove),
Add support when the kernel has been booted with DT blob. In this case the pdata is NULL, we need to reach up to the core node and check if the codec part has been enabled to determine if we need to coexist with the codec or not.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com Acked-by: Dmitry Torokhov dmitry.torokhov@gmail.com --- drivers/input/misc/twl4030-vibra.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c index fc0ed9b..2194a3c 100644 --- a/drivers/input/misc/twl4030-vibra.c +++ b/drivers/input/misc/twl4030-vibra.c @@ -26,6 +26,7 @@ #include <linux/module.h> #include <linux/jiffies.h> #include <linux/platform_device.h> +#include <linux/of.h> #include <linux/workqueue.h> #include <linux/i2c/twl.h> #include <linux/mfd/twl4030-audio.h> @@ -194,13 +195,26 @@ static int twl4030_vibra_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops, twl4030_vibra_suspend, twl4030_vibra_resume);
+static bool twl4030_vibra_check_coexist(struct twl4030_vibra_data *pdata, + struct device_node *node) +{ + if (pdata && pdata->coexist) + return true; + + if (of_find_node_by_name(node, "codec")) + return true; + + return false; +} + static int __devinit twl4030_vibra_probe(struct platform_device *pdev) { struct twl4030_vibra_data *pdata = pdev->dev.platform_data; + struct device_node *twl4030_core_node = pdev->dev.parent->of_node; struct vibra_info *info; int ret;
- if (!pdata) { + if (!pdata && !twl4030_core_node) { dev_dbg(&pdev->dev, "platform_data not available\n"); return -EINVAL; } @@ -210,7 +224,7 @@ static int __devinit twl4030_vibra_probe(struct platform_device *pdev) return -ENOMEM;
info->dev = &pdev->dev; - info->coexist = pdata->coexist; + info->coexist = twl4030_vibra_check_coexist(pdata, twl4030_core_node); INIT_WORK(&info->play_work, vibra_play_work);
info->input_dev = input_allocate_device();
The external mute (if it is in use) is handled by a GPIO line. Prepare to remove the set_hs_extmute callback and replace it with: hs_extmute_gpio: the GPIO number to use for external mute
When the users of set_hs_extmute has been converted the callback can be removed.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- include/linux/i2c/twl.h | 4 +++- sound/soc/codecs/twl4030.c | 32 ++++++++++++++++++++++++++++++-- 2 files changed, 33 insertions(+), 3 deletions(-)
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index ac6488c..2040309 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -667,7 +667,9 @@ struct twl4030_codec_data { unsigned int check_defaults:1; unsigned int reset_registers:1; unsigned int hs_extmute:1; - void (*set_hs_extmute)(int mute); + void (*set_hs_extmute)(int mute); /* Deprecated, use hs_extmute_gpio and + hs_extmute_disable_level */ + int hs_extmute_gpio; };
struct twl4030_vibra_data { diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 391fcfc..5fc271a 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -28,6 +28,7 @@ #include <linux/platform_device.h> #include <linux/i2c/twl.h> #include <linux/slab.h> +#include <linux/gpio.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -302,6 +303,22 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) u8 reg, byte; int i = 0;
+ if (pdata && pdata->hs_extmute && + gpio_is_valid(pdata->hs_extmute_gpio)) { + int ret; + + if (!pdata->hs_extmute_gpio) + dev_warn(codec->dev, + "Extmute GPIO is 0 is this correct?\n"); + + ret = gpio_request_one(pdata->hs_extmute_gpio, + GPIOF_OUT_INIT_LOW, "hs_extmute"); + if (ret) { + dev_err(codec->dev, "Failed to get hs_extmute GPIO\n"); + pdata->hs_extmute_gpio = -1; + } + } + /* Check defaults, if instructed before anything else */ if (pdata && pdata->check_defaults) twl4030_check_defaults(codec); @@ -748,7 +765,10 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) /* Enable external mute control, this dramatically reduces * the pop-noise */ if (pdata && pdata->hs_extmute) { - if (pdata->set_hs_extmute) { + if (gpio_is_valid(pdata->hs_extmute_gpio)) { + gpio_set_value(pdata->hs_extmute_gpio, 1); + } else if (pdata->set_hs_extmute) { + dev_warn(codec->dev, "set_hs_extmute is deprecated\n"); pdata->set_hs_extmute(1); } else { hs_pop |= TWL4030_EXTMUTE; @@ -786,7 +806,10 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp)
/* Disable external mute */ if (pdata && pdata->hs_extmute) { - if (pdata->set_hs_extmute) { + if (gpio_is_valid(pdata->hs_extmute_gpio)) { + gpio_set_value(pdata->hs_extmute_gpio, 0); + } else if (pdata->set_hs_extmute) { + dev_warn(codec->dev, "set_hs_extmute is deprecated\n"); pdata->set_hs_extmute(0); } else { hs_pop &= ~TWL4030_EXTMUTE; @@ -2230,12 +2253,17 @@ static int twl4030_soc_probe(struct snd_soc_codec *codec)
static int twl4030_soc_remove(struct snd_soc_codec *codec) { + struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
/* Reset registers to their chip default before leaving */ twl4030_reset_registers(codec); twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF); kfree(twl4030); + + if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio)) + gpio_free(pdata->hs_extmute_gpio); + return 0; }
Remove the use of set_hs_extmute callback and let the codec driver to handle the extmute GPIO.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com Acked-by: Tony Lindgren tony@atomide.com --- arch/arm/mach-omap2/board-zoom-peripherals.c | 9 ++------- arch/arm/mach-omap2/include/mach/board-zoom.h | 2 -- sound/soc/omap/zoom2.c | 4 ---- 3 files changed, 2 insertions(+), 13 deletions(-)
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c index b797cb2..a7d3b04 100644 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -34,6 +34,7 @@ #include "common-board-devices.h"
#define OMAP_ZOOM_WLAN_PMENA_GPIO (101) +#define ZOOM2_HEADSET_EXTMUTE_GPIO (153) #define OMAP_ZOOM_WLAN_IRQ_GPIO (162)
#define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES) @@ -244,12 +245,6 @@ static int zoom_twl_gpio_setup(struct device *dev, return ret; }
-/* EXTMUTE callback function */ -static void zoom2_set_hs_extmute(int mute) -{ - gpio_set_value(ZOOM2_HEADSET_EXTMUTE_GPIO, mute); -} - static struct twl4030_gpio_platform_data zoom_gpio_data = { .gpio_base = OMAP_MAX_GPIO_LINES, .irq_base = TWL4030_GPIO_IRQ_BASE, @@ -279,7 +274,7 @@ static int __init omap_i2c_init(void)
codec_data->ramp_delay_value = 3; /* 161 ms */ codec_data->hs_extmute = 1; - codec_data->set_hs_extmute = zoom2_set_hs_extmute; + codec_data->hs_extmute_gpio = ZOOM2_HEADSET_EXTMUTE_GPIO; } omap_pmic_init(1, 2400, "twl5030", INT_34XX_SYS_NIRQ, &zoom_twldata); omap_register_i2c_bus(2, 400, NULL, 0); diff --git a/arch/arm/mach-omap2/include/mach/board-zoom.h b/arch/arm/mach-omap2/include/mach/board-zoom.h index 775fdc3..2e94869 100644 --- a/arch/arm/mach-omap2/include/mach/board-zoom.h +++ b/arch/arm/mach-omap2/include/mach/board-zoom.h @@ -8,5 +8,3 @@ extern int __init zoom_debugboard_init(void); extern void __init zoom_peripherals_init(void); extern void __init zoom_display_init(void); - -#define ZOOM2_HEADSET_EXTMUTE_GPIO 153 diff --git a/sound/soc/omap/zoom2.c b/sound/soc/omap/zoom2.c index 920e0d9..df97a41 100644 --- a/sound/soc/omap/zoom2.c +++ b/sound/soc/omap/zoom2.c @@ -191,9 +191,6 @@ static int __init zoom2_soc_init(void) BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0); gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);
- BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0); - gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0); - return 0;
err1: @@ -207,7 +204,6 @@ module_init(zoom2_soc_init); static void __exit zoom2_soc_exit(void) { gpio_free(ZOOM2_HEADSET_MUX_GPIO); - gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO);
platform_device_unregister(zoom2_snd_device); }
We no longer have users for the set_hs_extmute callback which has been replaced by hs_extmute_gpio so the codec driver can handle the external mute if it is needed by the board.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- include/linux/i2c/twl.h | 2 -- sound/soc/codecs/twl4030.c | 6 ------ 2 files changed, 8 deletions(-)
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 2040309..a4885a6 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -667,8 +667,6 @@ struct twl4030_codec_data { unsigned int check_defaults:1; unsigned int reset_registers:1; unsigned int hs_extmute:1; - void (*set_hs_extmute)(int mute); /* Deprecated, use hs_extmute_gpio and - hs_extmute_disable_level */ int hs_extmute_gpio; };
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 5fc271a..27ccea4 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -767,9 +767,6 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) if (pdata && pdata->hs_extmute) { if (gpio_is_valid(pdata->hs_extmute_gpio)) { gpio_set_value(pdata->hs_extmute_gpio, 1); - } else if (pdata->set_hs_extmute) { - dev_warn(codec->dev, "set_hs_extmute is deprecated\n"); - pdata->set_hs_extmute(1); } else { hs_pop |= TWL4030_EXTMUTE; twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop); @@ -808,9 +805,6 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) if (pdata && pdata->hs_extmute) { if (gpio_is_valid(pdata->hs_extmute_gpio)) { gpio_set_value(pdata->hs_extmute_gpio, 0); - } else if (pdata->set_hs_extmute) { - dev_warn(codec->dev, "set_hs_extmute is deprecated\n"); - pdata->set_hs_extmute(0); } else { hs_pop &= ~TWL4030_EXTMUTE; twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
Allocate the private data with devm_kzalloc.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- sound/soc/codecs/twl4030.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 27ccea4..413e698 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -2231,7 +2231,8 @@ static int twl4030_soc_probe(struct snd_soc_codec *codec) { struct twl4030_priv *twl4030;
- twl4030 = kzalloc(sizeof(struct twl4030_priv), GFP_KERNEL); + twl4030 = devm_kzalloc(codec->dev, sizeof(struct twl4030_priv), + GFP_KERNEL); if (twl4030 == NULL) { dev_err(codec->dev, "Can not allocate memory\n"); return -ENOMEM; @@ -2253,7 +2254,6 @@ static int twl4030_soc_remove(struct snd_soc_codec *codec) /* Reset registers to their chip default before leaving */ twl4030_reset_registers(codec); twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF); - kfree(twl4030);
if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio)) gpio_free(pdata->hs_extmute_gpio);
Access the pdata via a pointer within the twl4030_priv structure. In preparation for DeviceTree support.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- sound/soc/codecs/twl4030.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 413e698..8b13d50 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -153,8 +153,7 @@ struct twl4030_priv { u8 predrivel_enabled, predriver_enabled; u8 carkitl_enabled, carkitr_enabled;
- /* Delay needed after enabling the digimic interface */ - unsigned int digimic_delay; + struct twl4030_codec_data *pdata; };
/* @@ -348,7 +347,7 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) if (!pdata) return;
- twl4030->digimic_delay = pdata->digimic_delay; + twl4030->pdata = pdata;
reg = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); reg &= ~TWL4030_RAMP_DELAY; @@ -749,9 +748,9 @@ static int aif_event(struct snd_soc_dapm_widget *w,
static void headset_ramp(struct snd_soc_codec *codec, int ramp) { - struct twl4030_codec_data *pdata = codec->dev->platform_data; unsigned char hs_gain, hs_pop; struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); + struct twl4030_codec_data *pdata = twl4030->pdata; /* Base values for ramp delay calculation: 2^19 - 2^26 */ unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864}; @@ -864,9 +863,10 @@ static int digimic_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec); + struct twl4030_codec_data *pdata = twl4030->pdata;
- if (twl4030->digimic_delay) - twl4030_wait_ms(twl4030->digimic_delay); + if (pdata && pdata->digimic_delay) + twl4030_wait_ms(pdata->digimic_delay); return 0; }
@@ -2248,8 +2248,8 @@ static int twl4030_soc_probe(struct snd_soc_codec *codec)
static int twl4030_soc_remove(struct snd_soc_codec *codec) { - struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); + struct twl4030_codec_data *pdata = twl4030->pdata;
/* Reset registers to their chip default before leaving */ twl4030_reset_registers(codec);
When the kernel has been booted with DT blob the platform data is NULL for the driver. We need to construct the pdata based on the DT information for runtime use.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- sound/soc/codecs/twl4030.c | 55 +++++++++++++++++++++++++++++++++++++++------- 1 file changed, 47 insertions(+), 8 deletions(-)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 8b13d50..8405ab9 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -26,6 +26,8 @@ #include <linux/pm.h> #include <linux/i2c.h> #include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_gpio.h> #include <linux/i2c/twl.h> #include <linux/slab.h> #include <linux/gpio.h> @@ -295,13 +297,57 @@ static inline void twl4030_reset_registers(struct snd_soc_codec *codec)
}
-static void twl4030_init_chip(struct snd_soc_codec *codec) +static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata, + struct device_node *node) +{ + int value; + + of_property_read_u32(node, "ti,digimic_delay", + &pdata->digimic_delay); + of_property_read_u32(node, "ti,ramp_delay_value", + &pdata->ramp_delay_value); + of_property_read_u32(node, "ti,offset_cncl_path", + &pdata->offset_cncl_path); + if (!of_property_read_u32(node, "ti,hs_extmute", &value)) + pdata->hs_extmute = value; + + pdata->hs_extmute_gpio = of_get_named_gpio(node, + "ti,hs_extmute_gpio", 0); + if (gpio_is_valid(pdata->hs_extmute_gpio)) + pdata->hs_extmute = 1; +} + +static struct twl4030_codec_data *twl4030_get_pdata(struct snd_soc_codec *codec) { struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); + struct device_node *twl4030_codec_node = NULL; + + twl4030_codec_node = of_find_node_by_name(codec->dev->parent->of_node, + "codec"); + + if (!pdata && twl4030_codec_node) { + pdata = devm_kzalloc(codec->dev, + sizeof(struct twl4030_codec_data), + GFP_KERNEL); + if (!pdata) { + dev_err(codec->dev, "Can not allocate memory\n"); + return NULL; + } + twl4030_setup_pdata_of(pdata, twl4030_codec_node); + } + + return pdata; +} + +static void twl4030_init_chip(struct snd_soc_codec *codec) +{ + struct twl4030_codec_data *pdata; struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); u8 reg, byte; int i = 0;
+ pdata = twl4030_get_pdata(codec); + if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio)) { int ret; @@ -2284,13 +2330,6 @@ static struct snd_soc_codec_driver soc_codec_dev_twl4030 = {
static int __devinit twl4030_codec_probe(struct platform_device *pdev) { - struct twl4030_codec_data *pdata = pdev->dev.platform_data; - - if (!pdata) { - dev_err(&pdev->dev, "platform_data is missing\n"); - return -EINVAL; - } - return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030, twl4030_dai, ARRAY_SIZE(twl4030_dai)); }
participants (2)
-
Mark Brown -
Peter Ujfalusi