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authorInha Song <ideal.song@samsung.com>2014-10-23 08:13:19 (GMT)
committerChanho Park <chanho61.park@samsung.com>2014-11-18 03:01:04 (GMT)
commit4baa28ed25bf2cefc4bdd527b57d31c25a3c21b1 (patch)
treecdb2de86aa7d85dce04539a13ea458042985db2b
parent93f6ea8d828456704d7889dd2b6088804dbb6ece (diff)
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ASoC: samsung: Add XUSBXTI power state control function for BT call when sleep state
This patch add XUSBXTI power-state control function for BT call when sleep state. When sound codec is enabled and entering sleep mode, XUSBXTI_SYS_PWR_REG must be set to enables for BT call. Change-Id: I5b385aad102e19c38d048609d99736ba13336253 Signed-off-by: Inha Song <ideal.song@samsung.com>
-rw-r--r--sound/soc/samsung/rinato_ymu831.c44
1 files changed, 33 insertions, 11 deletions
diff --git a/sound/soc/samsung/rinato_ymu831.c b/sound/soc/samsung/rinato_ymu831.c
index 08bd8bf..dbbadaa 100644
--- a/sound/soc/samsung/rinato_ymu831.c
+++ b/sound/soc/samsung/rinato_ymu831.c
@@ -12,6 +12,7 @@
#define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/input.h>
@@ -32,15 +33,13 @@
#include <sound/pcm_params.h>
#include "../codecs/ymu831/ymu831.h"
-#ifdef CONFIG_TIZEN_WIP
-/*
- * FIXME: This function maintain power-on state of XUSBXTI clock
- * to operate sound codec for BT call when sleep state .
- */
-extern void exynos_sys_powerdown_xusbxti_control(bool enable);
-#else
-static void exynos_sys_powerdown_xusbxti_control(bool enable) {}
-#endif
+#define EXYNOS3_XUSBXTI_SYS_PWR_REG_OFFSET 0x1280
+#define EXYNOS3_XUSBXTI_SYS_PWR_CFG_MASK (1 << 0)
+
+enum {
+ DISABLE,
+ ENABLE
+};
#define SND_SOC_DAPM_SPKMODE(wname, wevent) \
{ .id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \
@@ -56,6 +55,8 @@ enum {
struct rinato_ymu831 {
struct snd_soc_jack jack;
struct snd_soc_codec *codec;
+ struct regmap *reg_pmu;
+
struct clk *codec_mclk;
struct clk *clk_32kHz;
int gpio_mic_bias[MIC_MAX];
@@ -64,6 +65,18 @@ struct rinato_ymu831 {
u32 mic_avail[MIC_MAX];
};
+/*
+ * This function maintain power-on state of XUSBXTI clock to operate
+ * sound codec for BT call when sleep state.
+ */
+static void exynos_sys_powerdown_xusbxti_control(struct rinato_ymu831 *machine,
+ bool enable)
+{
+ regmap_update_bits(machine->reg_pmu, EXYNOS3_XUSBXTI_SYS_PWR_REG_OFFSET,
+ EXYNOS3_XUSBXTI_SYS_PWR_CFG_MASK,
+ enable ? ENABLE : DISABLE);
+}
+
static int rinato_hifi_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
@@ -120,11 +133,12 @@ static struct snd_soc_dai_link machine_dai[] = {
static int machine_card_suspend_post(struct snd_soc_card *card)
{
struct snd_soc_codec *codec = card->rtd->codec;
+ struct rinato_ymu831 *machine = snd_soc_card_get_drvdata(card);
int suspended;
suspended = ymu831_get_codec_suspended(codec);
if (!suspended)
- exynos_sys_powerdown_xusbxti_control(true);
+ exynos_sys_powerdown_xusbxti_control(machine, true);
return 0;
}
@@ -132,11 +146,12 @@ static int machine_card_suspend_post(struct snd_soc_card *card)
static int machine_card_resume_pre(struct snd_soc_card *card)
{
struct snd_soc_codec *codec = card->rtd->codec;
+ struct rinato_ymu831 *machine = snd_soc_card_get_drvdata(card);
int suspended;
suspended = ymu831_get_codec_suspended(codec);
if (!suspended)
- exynos_sys_powerdown_xusbxti_control(false);
+ exynos_sys_powerdown_xusbxti_control(machine, false);
return 0;
}
@@ -202,6 +217,13 @@ static int rinato_ymu831_probe(struct platform_device *pdev)
return -EINVAL;
}
+ machine->reg_pmu = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+ "samsung,pmureg-phandle");
+ if (IS_ERR(machine->reg_pmu)) {
+ dev_err(&pdev->dev, "failed to map PMU registers\n");
+ return PTR_ERR(machine->reg_pmu);
+ }
+
machine->clk_32kHz = clk_get(&pdev->dev, "clk_32k");
if (IS_ERR(machine->clk_32kHz)) {
dev_err(&pdev->dev, "failed to get codec 32k clock\n");