[PATCH 16/48] ARM: pxa: poodle: use platform data for poodle asoc driver

Arnd Bergmann
2022-04-19T16:48:05Z

From: Arnd Bergmann <arnd@arndb.de>

The poodle audio driver shows its age by using a custom
gpio api for the "locomo" support chip.

In a perfect world, this would get converted to use gpiolib
and a gpio lookup table.

As the world is not perfect, just pass all the required data
in a custom platform_data structure. to avoid the globally
visible mach/poodle.h header.

Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/arm/mach-pxa/poodle.c | 30 ++++++++----
arch/arm/mach-pxa/{include/mach => }/poodle.h | 4 +-
include/linux/platform_data/asoc-poodle.h | 16 ++++++
sound/soc/pxa/poodle.c | 49 ++++++++++---------
4 files changed, 63 insertions(+), 36 deletions(-)
rename arch/arm/mach-pxa/{include/mach => }/poodle.h (97%)
create mode 100644 include/linux/platform_data/asoc-poodle.h

diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index ca52882433d4..7772a39430ed 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -39,11 +39,13 @@
#include <asm/mach/irq.h>

#include "pxa25x.h"
-#include <linux/platform_data/mmc-pxamci.h>
#include "udc.h"
+#include "poodle.h"
+
+#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/irda-pxaficp.h>
-#include <mach/poodle.h>
#include <linux/platform_data/video-pxafb.h>
+#include <linux/platform_data/asoc-poodle.h>

#include <asm/hardware/scoop.h>
#include <asm/hardware/locomo.h>
@@ -155,12 +157,6 @@ static struct scoop_pcmcia_config poodle_pcmcia_config = {

EXPORT_SYMBOL(poodle_scoop_device);

-
-static struct platform_device poodle_audio_device = {
- .name = "poodle-audio",
- .id = -1,
-};
-
/* LoCoMo device */
static struct resource locomo_resources[] = {
[0] = {
@@ -179,7 +175,7 @@ static struct locomo_platform_data locomo_info = {
.irq_base = IRQ_BOARD_START,
};

-struct platform_device poodle_locomo_device = {
+static struct platform_device poodle_locomo_device = {
.name = "locomo",
.id = 0,
.num_resources = ARRAY_SIZE(locomo_resources),
@@ -189,7 +185,21 @@ struct platform_device poodle_locomo_device = {
},
};

-EXPORT_SYMBOL(poodle_locomo_device);
+static struct poodle_audio_platform_data poodle_audio_pdata = {
+ .locomo_dev = &poodle_locomo_device.dev,
+
+ .gpio_amp_on = POODLE_LOCOMO_GPIO_AMP_ON,
+ .gpio_mute_l = POODLE_LOCOMO_GPIO_MUTE_L,
+ .gpio_mute_r = POODLE_LOCOMO_GPIO_MUTE_R,
+ .gpio_232vcc_on = POODLE_LOCOMO_GPIO_232VCC_ON,
+ .gpio_jk_b = POODLE_LOCOMO_GPIO_JK_B,
+};
+
+static struct platform_device poodle_audio_device = {
+ .name = "poodle-audio",
+ .id = -1,
+ .dev.platform_data = &poodle_audio_pdata,
+};

#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_controller poodle_spi_info = {
diff --git a/arch/arm/mach-pxa/include/mach/poodle.h b/arch/arm/mach-pxa/poodle.h
similarity index 97%
rename from arch/arm/mach-pxa/include/mach/poodle.h
rename to arch/arm/mach-pxa/poodle.h
index b56b19351a03..e675a3d1aa18 100644
--- a/arch/arm/mach-pxa/include/mach/poodle.h
+++ b/arch/arm/mach-pxa/poodle.h
@@ -15,7 +15,7 @@
#ifndef __ASM_ARCH_POODLE_H
#define __ASM_ARCH_POODLE_H 1

-#include "irqs.h" /* PXA_GPIO_TO_IRQ */
+#include <mach/irqs.h> /* PXA_GPIO_TO_IRQ */

/*
* GPIOs
@@ -89,6 +89,4 @@

#define POODLE_NR_IRQS (IRQ_BOARD_START + 4) /* 4 for LoCoMo */

-extern struct platform_device poodle_locomo_device;
-
#endif /* __ASM_ARCH_POODLE_H */
diff --git a/include/linux/platform_data/asoc-poodle.h b/include/linux/platform_data/asoc-poodle.h
new file mode 100644
index 000000000000..2052fad55c5c
--- /dev/null
+++ b/include/linux/platform_data/asoc-poodle.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_PLATFORM_DATA_POODLE_AUDIO
+#define __LINUX_PLATFORM_DATA_POODLE_AUDIO
+
+/* locomo is not a proper gpio driver, and uses its own api */
+struct poodle_audio_platform_data {
+ struct device *locomo_dev;
+
+ int gpio_amp_on;
+ int gpio_mute_l;
+ int gpio_mute_r;
+ int gpio_232vcc_on;
+ int gpio_jk_b;
+};
+
+#endif
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index 176a0441235a..5fdaa477e85d 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -21,8 +21,8 @@

#include <asm/mach-types.h>
#include <asm/hardware/locomo.h>
-#include <mach/poodle.h>
#include <linux/platform_data/asoc-pxa.h>
+#include <linux/platform_data/asoc-poodle.h>

#include "../codecs/wm8731.h"
#include "pxa2xx-i2s.h"
@@ -38,21 +38,23 @@
static int poodle_jack_func;
static int poodle_spk_func;

+static struct poodle_audio_platform_data *poodle_pdata;
+
static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
{
/* set up jack connection */
if (poodle_jack_func == POODLE_HP) {
/* set = unmute headphone */
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 1);
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 1);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_l, 1);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_r, 1);
snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
} else {
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 0);
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 0);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_l, 0);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_r, 0);
snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
}

@@ -80,10 +82,10 @@ static int poodle_startup(struct snd_pcm_substream *substream)
static void poodle_shutdown(struct snd_pcm_substream *substream)
{
/* set = unmute headphone */
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 1);
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 1);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_l, 1);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_r, 1);
}

static int poodle_hw_params(struct snd_pcm_substream *substream,
@@ -174,11 +176,11 @@ static int poodle_amp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
if (SND_SOC_DAPM_EVENT_ON(event))
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_AMP_ON, 0);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_amp_on, 0);
else
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_AMP_ON, 1);
+ locomo_gpio_write(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_amp_on, 1);

return 0;
}
@@ -254,13 +256,14 @@ static int poodle_probe(struct platform_device *pdev)
struct snd_soc_card *card = &poodle;
int ret;

- locomo_gpio_set_dir(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_AMP_ON, 0);
+ poodle_pdata = pdev->dev.platform_data;
+ locomo_gpio_set_dir(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_amp_on, 0);
/* should we mute HP at startup - burning power ?*/
- locomo_gpio_set_dir(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 0);
- locomo_gpio_set_dir(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 0);
+ locomo_gpio_set_dir(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_l, 0);
+ locomo_gpio_set_dir(poodle_pdata->locomo_dev,
+ poodle_pdata->gpio_mute_r, 0);

card->dev = &pdev->dev;

--
2.29.2