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Commit 21af1094 authored by Mark Brown's avatar Mark Brown
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Merge remote-tracking branches 'asoc/topic/88pm860x', 'asoc/topic/ac97',...

Merge remote-tracking branches 'asoc/topic/88pm860x', 'asoc/topic/ac97', 'asoc/topic/ak4542', 'asoc/topic/arizona' and 'asoc/topic/atmel' into asoc-next
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+2 −0
Original line number Diff line number Diff line
@@ -584,6 +584,8 @@ static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg,
void snd_ac97_suspend(struct snd_ac97 *ac97);
void snd_ac97_resume(struct snd_ac97 *ac97);
#endif
int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
	unsigned int id_mask);

/* quirk types */
enum {
+2 −1
Original line number Diff line number Diff line
@@ -526,7 +526,8 @@ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,

#ifdef CONFIG_SND_SOC_AC97_BUS
struct snd_ac97 *snd_soc_alloc_ac97_codec(struct snd_soc_codec *codec);
struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec);
struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
	unsigned int id, unsigned int id_mask);
void snd_soc_free_ac97_codec(struct snd_ac97 *ac97);

int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
+62 −0
Original line number Diff line number Diff line
@@ -17,6 +17,68 @@
#include <linux/string.h>
#include <sound/ac97_codec.h>

/*
 * snd_ac97_check_id() - Reads and checks the vendor ID of the device
 * @ac97: The AC97 device to check
 * @id: The ID to compare to
 * @id_mask: Mask that is applied to the device ID before comparing to @id
 *
 * If @id is 0 this function returns true if the read device vendor ID is
 * a valid ID. If @id is non 0 this functions returns true if @id
 * matches the read vendor ID. Otherwise the function returns false.
 */
static bool snd_ac97_check_id(struct snd_ac97 *ac97, unsigned int id,
	unsigned int id_mask)
{
	ac97->id = ac97->bus->ops->read(ac97, AC97_VENDOR_ID1) << 16;
	ac97->id |= ac97->bus->ops->read(ac97, AC97_VENDOR_ID2);

	if (ac97->id == 0x0 || ac97->id == 0xffffffff)
		return false;

	if (id != 0 && id != (ac97->id & id_mask))
		return false;

	return true;
}

/**
 * snd_ac97_reset() - Reset AC'97 device
 * @ac97: The AC'97 device to reset
 * @try_warm: Try a warm reset first
 * @id: Expected device vendor ID
 * @id_mask: Mask that is applied to the device ID before comparing to @id
 *
 * This function resets the AC'97 device. If @try_warm is true the function
 * first performs a warm reset. If the warm reset is successful the function
 * returns 1. Otherwise or if @try_warm is false the function issues cold reset
 * followed by a warm reset. If this is successful the function returns 0,
 * otherwise a negative error code. If @id is 0 any valid device ID will be
 * accepted, otherwise only the ID that matches @id and @id_mask is accepted.
 */
int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
	unsigned int id_mask)
{
	struct snd_ac97_bus_ops *ops = ac97->bus->ops;

	if (try_warm && ops->warm_reset) {
		ops->warm_reset(ac97);
		if (snd_ac97_check_id(ac97, id, id_mask))
			return 1;
	}

	if (ops->reset)
		ops->reset(ac97);
	if (ops->warm_reset)
		ops->warm_reset(ac97);

	if (snd_ac97_check_id(ac97, id, id_mask))
		return 0;

	return -ENODEV;
}
EXPORT_SYMBOL_GPL(snd_ac97_reset);

/*
 * Let drivers decide whether they want to support given codec from their
 * probe method. Drivers have direct access to the struct snd_ac97
+1 −1
Original line number Diff line number Diff line
@@ -290,7 +290,7 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
	int dir, dir_mask;
	int ret;

	pr_debug("atmel_ssc_startup: SSC_SR=0x%u\n",
	pr_debug("atmel_ssc_startup: SSC_SR=0x%x\n",
		ssc_readl(ssc_p->ssc->regs, SR));

	/* Enable PMC peripheral clock for this SSC */
+1 −3
Original line number Diff line number Diff line
@@ -1028,10 +1028,8 @@ static int pm860x_set_dai_sysclk(struct snd_soc_dai *codec_dai,

	if (dir == PM860X_CLK_DIR_OUT)
		pm860x->dir = PM860X_CLK_DIR_OUT;
	else {
		pm860x->dir = PM860X_CLK_DIR_IN;
	else	/* Slave mode is not supported */
		return -EINVAL;
	}

	return 0;
}
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