mfd: pm8xxx-spk: Fix settings for the class D audio amplifier
Test results based on noise gate recommended the following settings
0x254=0xC8 (Threshold=110, preamp bias=01)
0x255=0xC1 (Hold=110, max attn=0000, mute=1)
0x256=0xB0 (decay=101, attack=10, delay=0)
CRs-Fixed: 385187
Change-Id: I7276a6d0689ffb475aa8c58214fd2b00fe62f81c
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
(cherry picked from commit 59442e223dcd616d7a244c85d8e0acccf4df9651)
diff --git a/drivers/mfd/pm8xxx-spk.c b/drivers/mfd/pm8xxx-spk.c
index 2de70f4..a88c06c 100644
--- a/drivers/mfd/pm8xxx-spk.c
+++ b/drivers/mfd/pm8xxx-spk.c
@@ -22,8 +22,11 @@
#include <linux/mfd/pm8xxx/spk.h>
#define PM8XXX_SPK_CTL1_REG_OFF 0
-#define PM8XXX_SPK_TEST_REG_1_OFF 1
-#define PM8XXX_SPK_TEST_REG_2_OFF 2
+#define PM8XXX_SPK_CTL2_REG_OFF 1
+#define PM8XXX_SPK_CTL3_REG_OFF 2
+#define PM8XXX_SPK_CTL4_REG_OFF 3
+#define PM8XXX_SPK_TEST_REG_1_OFF 4
+#define PM8XXX_SPK_TEST_REG_2_OFF 5
#define PM8XXX_SPK_BANK_SEL 4
#define PM8XXX_SPK_BANK_WRITE 0x80
@@ -194,6 +197,7 @@
{
const struct pm8xxx_spk_platform_data *pdata = pdev->dev.platform_data;
int ret = 0;
+ u8 value = 0;
if (!pdata) {
pr_err("missing platform data\n");
@@ -236,6 +240,23 @@
if (ret < 0)
goto err_handle;
}
+ value = ((the_spk_chip->pdata.cd_ng_threshold << 5) |
+ the_spk_chip->pdata.cd_nf_preamp_bias << 3);
+ pr_debug("Setting SPK_CTL2_REG = %02x\n", value);
+ pm8xxx_spk_write(PM8XXX_SPK_CTL2_REG_OFF, value);
+
+ value = ((the_spk_chip->pdata.cd_ng_hold << 5) |
+ (the_spk_chip->pdata.cd_ng_max_atten << 1) |
+ the_spk_chip->pdata.noise_mute);
+ pr_debug("Setting SPK_CTL3_REG = %02x\n", value);
+ pm8xxx_spk_write(PM8XXX_SPK_CTL3_REG_OFF, value);
+
+ value = ((the_spk_chip->pdata.cd_ng_decay_rate << 5) |
+ (the_spk_chip->pdata.cd_ng_attack_rate << 3) |
+ the_spk_chip->pdata.cd_delay << 2);
+ pr_debug("Setting SPK_CTL4_REG = %02x\n", value);
+ pm8xxx_spk_write(PM8XXX_SPK_CTL4_REG_OFF, value);
+
return pm8xxx_spk_config();
err_handle:
pr_err("pm8xxx_spk_probe failed."