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drm/bridge/sii8620: add HSIC initialization code

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In case of MHL3 HSIC should be initialized.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-24-git-send-email-a.hajda@samsung.com
This commit is contained in:
Andrzej Hajda 2017-02-01 08:47:50 +01:00 committed by Archit Taneja
parent 581a923730
commit a21e658bfb
2 changed files with 44 additions and 4 deletions
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38
drivers/gpu/drm/bridge/sil-sii8620.c
View File

@ -489,12 +489,50 @@ static void sii8620_sink_detected(struct sii8620 *ctx, int ret)
sink_str[ctx->sink_type], sink_name);
}
static void sii8620_hsic_init(struct sii8620 *ctx)
{
if (!sii8620_is_mhl3(ctx))
return;
sii8620_write(ctx, REG_FCGC,
BIT_FCGC_HSIC_HOSTMODE | BIT_FCGC_HSIC_ENABLE);
sii8620_setbits(ctx, REG_HRXCTRL3,
BIT_HRXCTRL3_HRX_STAY_RESET | BIT_HRXCTRL3_STATUS_EN, ~0);
sii8620_setbits(ctx, REG_TTXNUMB, MSK_TTXNUMB_TTX_NUMBPS, 4);
sii8620_setbits(ctx, REG_TRXCTRL, BIT_TRXCTRL_TRX_FROM_SE_COC, ~0);
sii8620_setbits(ctx, REG_HTXCTRL, BIT_HTXCTRL_HTX_DRVCONN1, 0);
sii8620_setbits(ctx, REG_KEEPER, MSK_KEEPER_MODE, VAL_KEEPER_MODE_HOST);
sii8620_write_seq_static(ctx,
REG_TDMLLCTL, 0,
REG_UTSRST, BIT_UTSRST_HRX_SRST | BIT_UTSRST_HTX_SRST |
BIT_UTSRST_KEEPER_SRST | BIT_UTSRST_FC_SRST,
REG_UTSRST, BIT_UTSRST_HRX_SRST | BIT_UTSRST_HTX_SRST,
REG_HRXINTL, 0xff,
REG_HRXINTH, 0xff,
REG_TTXINTL, 0xff,
REG_TTXINTH, 0xff,
REG_TRXINTL, 0xff,
REG_TRXINTH, 0xff,
REG_HTXINTL, 0xff,
REG_HTXINTH, 0xff,
REG_FCINTR0, 0xff,
REG_FCINTR1, 0xff,
REG_FCINTR2, 0xff,
REG_FCINTR3, 0xff,
REG_FCINTR4, 0xff,
REG_FCINTR5, 0xff,
REG_FCINTR6, 0xff,
REG_FCINTR7, 0xff
);
}
static void sii8620_edid_read(struct sii8620 *ctx, int ret)
{
if (ret < 0)
return;
sii8620_set_upstream_edid(ctx);
sii8620_hsic_init(ctx);
sii8620_enable_hpd(ctx);
}

10
drivers/gpu/drm/bridge/sil-sii8620.h
View File

@ -353,7 +353,7 @@
#define REG_TTXNUMB 0x0116
#define MSK_TTXNUMB_TTX_AFFCTRL_3_0 0xf0
#define BIT_TTXNUMB_TTX_COM1_AT_SYNC_WAIT BIT(3)
#define MSK_TTXNUMB_TTX_NUMBPS_2_0 0x07
#define MSK_TTXNUMB_TTX_NUMBPS 0x07
/* TDM TX NUMSPISYM, default value: 0x04 */
#define REG_TTXSPINUMS 0x0117
@ -433,12 +433,14 @@
/* HSIC Keeper, default value: 0x00 */
#define REG_KEEPER 0x0181
#define MSK_KEEPER_KEEPER_MODE_1_0 0x03
#define MSK_KEEPER_MODE 0x03
#define VAL_KEEPER_MODE_HOST 0
#define VAL_KEEPER_MODE_DEVICE 2
/* HSIC Flow Control General, default value: 0x02 */
#define REG_FCGC 0x0183
#define BIT_FCGC_HSIC_FC_HOSTMODE BIT(1)
#define BIT_FCGC_HSIC_FC_ENABLE BIT(0)
#define BIT_FCGC_HSIC_HOSTMODE BIT(1)
#define BIT_FCGC_HSIC_ENABLE BIT(0)
/* HSIC Flow Control CTR13, default value: 0xfc */
#define REG_FCCTR13 0x0191