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| author | Andrzej Hajda <a.hajda@samsung.com> | 2017-02-01 08:47:50 +0100 |
|---|---|---|
| committer | Archit Taneja <architt@codeaurora.org> | 2017-02-02 15:15:30 +0530 |
| commit | a21e658bfbcdbbac26e92a76aa22db507b439f7c (patch) | |
| tree | 09e8d43029a9be0c511742084ec0c1353b237549 /drivers/gpu/drm/bridge/sil-sii8620.c | |
| parent | 581a923730b41e678579aa268d4155bf345859fd (diff) | |
| download | linux-a21e658bfbcdbbac26e92a76aa22db507b439f7c.tar.bz2 | |
drm/bridge/sii8620: add HSIC initialization code
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
Diffstat (limited to 'drivers/gpu/drm/bridge/sil-sii8620.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/sil-sii8620.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c index a0c5499f898b..5dd800d2e303 100644 --- a/drivers/gpu/drm/bridge/sil-sii8620.c +++ b/drivers/gpu/drm/bridge/sil-sii8620.c @@ -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); } |