This is a note to let you know that I've just added the patch titled
ARM: pxa: spitz: use gpio descriptors for audio
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-pxa-spitz-use-gpio-descriptors-for-audio.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5bd78cebfc019bbcbab9cb6e680a35b945126023
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date: Wed Sep 11 16:43:59 2019 +0200
ARM: pxa: spitz: use gpio descriptors for audio
[ Upstream commit 726d8c965bae2d7468445d990849e281dca8cbf7 ]
The audio driver should not use a hardwired gpio number
from the header. Change it to use a lookup table.
Acked-by: Mark Brown <broonie@xxxxxxxxxx>
Cc: alsa-devel@xxxxxxxxxxxxxxxx
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Stable-dep-of: 78ab3d352f29 ("ARM: spitz: fix GPIO assignment for backlight")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 264de0bc97d68..8f880dbc05fdb 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -43,7 +43,7 @@
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/video-pxafb.h>
-#include <mach/spitz.h>
+#include "spitz.h"
#include "sharpsl_pm.h"
#include <mach/smemc.h>
@@ -954,11 +954,42 @@ static void __init spitz_i2c_init(void)
static inline void spitz_i2c_init(void) {}
#endif
+static struct gpiod_lookup_table spitz_audio_gpio_table = {
+ .dev_id = "spitz-audio",
+ .table = {
+ GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_L - SPITZ_SCP_GPIO_BASE,
+ "mute-l", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_R - SPITZ_SCP_GPIO_BASE,
+ "mute-r", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("sharp-scoop.1", SPITZ_GPIO_MIC_BIAS - SPITZ_SCP2_GPIO_BASE,
+ "mic", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
+static struct gpiod_lookup_table akita_audio_gpio_table = {
+ .dev_id = "spitz-audio",
+ .table = {
+ GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_L - SPITZ_SCP_GPIO_BASE,
+ "mute-l", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_R - SPITZ_SCP_GPIO_BASE,
+ "mute-r", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("i2c-max7310", AKITA_GPIO_MIC_BIAS - AKITA_IOEXP_GPIO_BASE,
+ "mic", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
/******************************************************************************
* Audio devices
******************************************************************************/
static inline void spitz_audio_init(void)
{
+ if (machine_is_akita())
+ gpiod_add_lookup_table(&akita_audio_gpio_table);
+ else
+ gpiod_add_lookup_table(&spitz_audio_gpio_table);
+
platform_device_register_simple("spitz-audio", -1, NULL, 0);
}
diff --git a/arch/arm/mach-pxa/include/mach/spitz.h b/arch/arm/mach-pxa/spitz.h
similarity index 99%
rename from arch/arm/mach-pxa/include/mach/spitz.h
rename to arch/arm/mach-pxa/spitz.h
index 04828d8918aa3..f97e3ebd762d5 100644
--- a/arch/arm/mach-pxa/include/mach/spitz.h
+++ b/arch/arm/mach-pxa/spitz.h
@@ -11,7 +11,7 @@
#define __ASM_ARCH_SPITZ_H 1
#endif
-#include "irqs.h" /* PXA_NR_BUILTIN_GPIO, PXA_GPIO_TO_IRQ */
+#include <mach/irqs.h> /* PXA_NR_BUILTIN_GPIO, PXA_GPIO_TO_IRQ */
#include <linux/fb.h>
/* Spitz/Akita GPIOs */
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
index 25a1f8c5a7382..6167f96d7b41e 100644
--- a/arch/arm/mach-pxa/spitz_pm.c
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -20,7 +20,7 @@
#include <asm/mach-types.h>
#include <mach/hardware.h>
-#include <mach/spitz.h>
+#include "spitz.h"
#include "pxa27x.h"
#include "sharpsl_pm.h"
diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c
index 7c1384a869ca4..44303b6eb228b 100644
--- a/sound/soc/pxa/spitz.c
+++ b/sound/soc/pxa/spitz.c
@@ -14,13 +14,12 @@
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
-#include <mach/spitz.h>
#include "../codecs/wm8750.h"
#include "pxa2xx-i2s.h"
@@ -37,7 +36,7 @@
static int spitz_jack_func;
static int spitz_spk_func;
-static int spitz_mic_gpio;
+static struct gpio_desc *gpiod_mic, *gpiod_mute_l, *gpiod_mute_r;
static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
{
@@ -56,8 +55,8 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
- gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
- gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
+ gpiod_set_value(gpiod_mute_l, 1);
+ gpiod_set_value(gpiod_mute_r, 1);
break;
case SPITZ_MIC:
/* enable mic jack and bias, mute hp */
@@ -65,8 +64,8 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
- gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
- gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
+ gpiod_set_value(gpiod_mute_l, 0);
+ gpiod_set_value(gpiod_mute_r, 0);
break;
case SPITZ_LINE:
/* enable line jack, disable mic bias and mute hp */
@@ -74,8 +73,8 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
- gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
- gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
+ gpiod_set_value(gpiod_mute_l, 0);
+ gpiod_set_value(gpiod_mute_r, 0);
break;
case SPITZ_HEADSET:
/* enable and unmute headset jack enable mic bias, mute L hp */
@@ -83,8 +82,8 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
- gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
- gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
+ gpiod_set_value(gpiod_mute_l, 0);
+ gpiod_set_value(gpiod_mute_r, 1);
break;
case SPITZ_HP_OFF:
@@ -93,8 +92,8 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
- gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
- gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
+ gpiod_set_value(gpiod_mute_l, 0);
+ gpiod_set_value(gpiod_mute_r, 0);
break;
}
@@ -199,7 +198,7 @@ static int spitz_set_spk(struct snd_kcontrol *kcontrol,
static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
- gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
+ gpiod_set_value_cansleep(gpiod_mic, SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
@@ -287,39 +286,28 @@ static int spitz_probe(struct platform_device *pdev)
struct snd_soc_card *card = &snd_soc_spitz;
int ret;
- if (machine_is_akita())
- spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;
- else
- spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
-
- ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
- if (ret)
- goto err1;
-
- ret = gpio_direction_output(spitz_mic_gpio, 0);
- if (ret)
- goto err2;
+ gpiod_mic = devm_gpiod_get(&pdev->dev, "mic", GPIOD_OUT_LOW);
+ if (IS_ERR(gpiod_mic))
+ return PTR_ERR(gpiod_mic);
+ gpiod_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_LOW);
+ if (IS_ERR(gpiod_mute_l))
+ return PTR_ERR(gpiod_mute_l);
+ gpiod_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_LOW);
+ if (IS_ERR(gpiod_mute_r))
+ return PTR_ERR(gpiod_mute_r);
card->dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, card);
- if (ret) {
+ if (ret)
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
- goto err2;
- }
-
- return 0;
-err2:
- gpio_free(spitz_mic_gpio);
-err1:
return ret;
}
static int spitz_remove(struct platform_device *pdev)
{
- gpio_free(spitz_mic_gpio);
return 0;
}
