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Commit 70d7c069 authored by Phani Kumar Uppalapati's avatar Phani Kumar Uppalapati
Browse files

drivers: mfd: Update codec reset sequence for wcd9335 v1.1 



WCD9335 Codec reset sequence is different for versions 1.0
and 1.1. Update the reset sequence if wcd9335 version 1.1
is detected.

Change-Id: I7c0061f8d0218ed67adaa4a1d4f54a60dc925d55
Signed-off-by: default avatarPhani Kumar Uppalapati <phaniu@codeaurora.org>
parent 84bfeac2

drivers/mfd/wcd9xxx-core.c

+45 −7
Original line number Diff line number Diff line
@@ -778,15 +778,52 @@ static const struct wcd9xxx_codec_type wcd9xxx_codecs[] = { 
	},

};



static void wcd9xxx_bring_up(struct wcd9xxx *wcd9xxx)

static void wcd9335_bring_up(struct wcd9xxx *wcd9xxx)

{

	pr_debug("%s: Codec Type: %d\n", __func__, wcd9xxx->type);

	int val;



	if (wcd9xxx->type == WCD9335) {

	val = __wcd9xxx_reg_read(wcd9xxx,

				 WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT0);

	pr_debug("%s: codec version %s 1.0\n", __func__,

		 ((val & 0x80) ? "greater than" : "is"));



	if (val & 0x80) {

		__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01);

		__wcd9xxx_reg_write(wcd9xxx,

				    WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x5);

		__wcd9xxx_reg_write(wcd9xxx,

				    WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x7);

		__wcd9xxx_reg_write(wcd9xxx,

				    WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3);

		__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3);

	} else {

		__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01);

		__wcd9xxx_reg_write(wcd9xxx,

				    WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3);

		__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3);

	}

}



static void wcd9335_bring_down(struct wcd9xxx *wcd9xxx)

{

	int val;



	val = __wcd9xxx_reg_read(wcd9xxx,

				 WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT0);

	if (val & 0x80)

		__wcd9xxx_reg_write(wcd9xxx,

				    WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x4);

	else

		__wcd9xxx_reg_write(wcd9xxx,

				    WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x7);

}



static void wcd9xxx_bring_up(struct wcd9xxx *wcd9xxx)

{

	pr_debug("%s: Codec Type: %d\n", __func__, wcd9xxx->type);



	if (wcd9xxx->type == WCD9335) {

		wcd9335_bring_up(wcd9xxx);

	} else if (wcd9xxx->type == WCD9330) {

		__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_LEAKAGE_CTL, 0x4);

		__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0);
@@ -808,11 +845,12 @@ static void wcd9xxx_bring_down(struct wcd9xxx *wcd9xxx) 
{

	unsigned short reg;



	if (wcd9xxx->type == WCD9330)

	if (wcd9xxx->type == WCD9335) {

		wcd9335_bring_down(wcd9xxx);

		return;

	} else if (wcd9xxx->type == WCD9330) {

		reg = WCD9330_A_LEAKAGE_CTL;

	else if (wcd9xxx->type == WCD9335)

		reg = WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL;

	else

	} else

		reg = WCD9XXX_A_LEAKAGE_CTL;



	__wcd9xxx_reg_write(wcd9xxx, reg, 0x7);