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Date: Thu, 10 Jan 2013 12:04:16 +0000
From: Mark Brown <broonie@...nsource.wolfsonmicro.com>
To: MyungJoo Ham <myungjoo.ham@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Samuel Ortiz <sameo@...ux.intel.com>,
patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 05/11] extcon: arizona: Use microphone clamp function if available
Newer Arizona devices include a microphone clamp function which is tied to
jack detect. Activate this feature when present in order to ensure best
performance of the subsystem.
Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
---
drivers/extcon/extcon-arizona.c | 19 +++++++++++++++++++
include/linux/mfd/arizona/core.h | 4 +++-
include/linux/mfd/arizona/registers.h | 28 ++++++++++++++++++++++++++++
3 files changed, 50 insertions(+), 1 deletion(-)
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 635b707..3ef3bee 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -45,6 +45,7 @@ struct arizona_extcon_info {
int micd_num_modes;
bool micd_reva;
+ bool micd_clamp;
bool mic;
bool detecting;
@@ -375,6 +376,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
info->micd_reva = true;
break;
default:
+ info->micd_clamp = true;
break;
}
break;
@@ -423,6 +425,19 @@ static int arizona_extcon_probe(struct platform_device *pdev)
arizona->pdata.micd_bias_start_time
<< ARIZONA_MICD_BIAS_STARTTIME_SHIFT);
+ /*
+ * If we have a clamp use it.
+ */
+ if (info->micd_clamp) {
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_MICD_CLAMP_CONTROL,
+ ARIZONA_MICD_CLAMP_MODE_MASK, 4);
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_JACK_DETECT_DEBOUNCE,
+ ARIZONA_MICD_CLAMP_DB,
+ ARIZONA_MICD_CLAMP_DB);
+ }
+
arizona_extcon_set_mode(info, 0);
info->input = devm_input_allocate_device(&pdev->dev);
@@ -529,6 +544,10 @@ static int arizona_extcon_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_MICD_CLAMP_CONTROL,
+ ARIZONA_MICD_CLAMP_MODE_MASK, 0);
+
arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 0);
arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_FALL, 0);
arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h
index a580363..a710255 100644
--- a/include/linux/mfd/arizona/core.h
+++ b/include/linux/mfd/arizona/core.h
@@ -75,8 +75,10 @@ enum arizona_type {
#define ARIZONA_IRQ_DCS_HP_DONE 47
#define ARIZONA_IRQ_FLL2_CLOCK_OK 48
#define ARIZONA_IRQ_FLL1_CLOCK_OK 49
+#define ARIZONA_IRQ_MICD_CLAMP_RISE 50
+#define ARIZONA_IRQ_MICD_CLAMP_FALL 51
-#define ARIZONA_NUM_IRQ 50
+#define ARIZONA_NUM_IRQ 52
struct snd_soc_dapm_context;
diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
index 1f6fe31..f3211f0 100644
--- a/include/linux/mfd/arizona/registers.h
+++ b/include/linux/mfd/arizona/registers.h
@@ -119,6 +119,7 @@
#define ARIZONA_ACCESSORY_DETECT_MODE_1 0x293
#define ARIZONA_HEADPHONE_DETECT_1 0x29B
#define ARIZONA_HEADPHONE_DETECT_2 0x29C
+#define ARIZONA_MICD_CLAMP_CONTROL 0x2A2
#define ARIZONA_MIC_DETECT_1 0x2A3
#define ARIZONA_MIC_DETECT_2 0x2A4
#define ARIZONA_MIC_DETECT_3 0x2A5
@@ -2070,6 +2071,13 @@
#define ARIZONA_HP_LVL_WIDTH 7 /* HP_LVL - [6:0] */
/*
+ * R674 (0x2A2) - MICD clamp control
+ */
+#define ARIZONA_MICD_CLAMP_MODE_MASK 0x000F /* MICD_CLAMP_MODE - [3:0] */
+#define ARIZONA_MICD_CLAMP_MODE_SHIFT 0 /* MICD_CLAMP_MODE - [3:0] */
+#define ARIZONA_MICD_CLAMP_MODE_WIDTH 4 /* MICD_CLAMP_MODE - [3:0] */
+
+/*
* R675 (0x2A3) - Mic Detect 1
*/
#define ARIZONA_MICD_BIAS_STARTTIME_MASK 0xF000 /* MICD_BIAS_STARTTIME - [15:12] */
@@ -5267,6 +5275,12 @@
/*
* R3409 (0xD51) - AOD IRQ1
*/
+#define ARIZONA_MICD_CLAMP_FALL_EINT1 0x0080 /* MICD_CLAMP_FALL_EINT1 */
+#define ARIZONA_MICD_CLAMP_FALL_EINT1_MASK 0x0080 /* MICD_CLAMP_FALL_EINT1 */
+#define ARIZONA_MICD_CLAMP_FALL_EINT1_SHIFT 7 /* MICD_CLAMP_FALL_EINT1 */
+#define ARIZONA_MICD_CLAMP_RISE_EINT1 0x0040 /* MICD_CLAMP_RISE_EINT1 */
+#define ARIZONA_MICD_CLAMP_RISE_EINT1_MASK 0x0040 /* MICD_CLAMP_RISE_EINT1 */
+#define ARIZONA_MICD_CLAMP_RISE_EINT1_SHIFT 6 /* MICD_CLAMP_RISE_EINT1 */
#define ARIZONA_GP5_FALL_EINT1 0x0020 /* GP5_FALL_EINT1 */
#define ARIZONA_GP5_FALL_EINT1_MASK 0x0020 /* GP5_FALL_EINT1 */
#define ARIZONA_GP5_FALL_EINT1_SHIFT 5 /* GP5_FALL_EINT1 */
@@ -5295,6 +5309,12 @@
/*
* R3410 (0xD52) - AOD IRQ2
*/
+#define ARIZONA_MICD_CLAMP_FALL_EINT2 0x0080 /* MICD_CLAMP_FALL_EINT2 */
+#define ARIZONA_MICD_CLAMP_FALL_EINT2_MASK 0x0080 /* MICD_CLAMP_FALL_EINT2 */
+#define ARIZONA_MICD_CLAMP_FALL_EINT2_SHIFT 7 /* MICD_CLAMP_FALL_EINT2 */
+#define ARIZONA_MICD_CLAMP_RISE_EINT2 0x0040 /* MICD_CLAMP_RISE_EINT2 */
+#define ARIZONA_MICD_CLAMP_RISE_EINT2_MASK 0x0040 /* MICD_CLAMP_RISE_EINT2 */
+#define ARIZONA_MICD_CLAMP_RISE_EINT2_SHIFT 6 /* MICD_CLAMP_RISE_EINT2 */
#define ARIZONA_GP5_FALL_EINT2 0x0020 /* GP5_FALL_EINT2 */
#define ARIZONA_GP5_FALL_EINT2_MASK 0x0020 /* GP5_FALL_EINT2 */
#define ARIZONA_GP5_FALL_EINT2_SHIFT 5 /* GP5_FALL_EINT2 */
@@ -5379,6 +5399,10 @@
/*
* R3413 (0xD55) - AOD IRQ Raw Status
*/
+#define ARIZONA_MICD_CLAMP_STS 0x0008 /* MICD_CLAMP_STS */
+#define ARIZONA_MICD_CLAMP_STS_MASK 0x0008 /* MICD_CLAMP_STS */
+#define ARIZONA_MICD_CLAMP_STS_SHIFT 3 /* MICD_CLAMP_STS */
+#define ARIZONA_MICD_CLAMP_STS_WIDTH 1 /* MICD_CLAMP_STS */
#define ARIZONA_GP5_STS 0x0004 /* GP5_STS */
#define ARIZONA_GP5_STS_MASK 0x0004 /* GP5_STS */
#define ARIZONA_GP5_STS_SHIFT 2 /* GP5_STS */
@@ -5395,6 +5419,10 @@
/*
* R3414 (0xD56) - Jack detect debounce
*/
+#define ARIZONA_MICD_CLAMP_DB 0x0008 /* MICD_CLAMP_DB */
+#define ARIZONA_MICD_CLAMP_DB_MASK 0x0008 /* MICD_CLAMP_DB */
+#define ARIZONA_MICD_CLAMP_DB_SHIFT 3 /* MICD_CLAMP_DB */
+#define ARIZONA_MICD_CLAMP_DB_WIDTH 1 /* MICD_CLAMP_DB */
#define ARIZONA_JD2_DB 0x0002 /* JD2_DB */
#define ARIZONA_JD2_DB_MASK 0x0002 /* JD2_DB */
#define ARIZONA_JD2_DB_SHIFT 1 /* JD2_DB */
--
1.7.10.4
--
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