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authorMaciej Purski <m.purski@samsung.com>2017-11-09 13:53:42 +0300
committerAndrzej Hajda <a.hajda@samsung.com>2017-11-16 15:48:21 +0300
commit5c632e22c2e9aa45bcf3dc2ee85594dae3781145 (patch)
tree3fa6ba9478591138b51da4299e9567e858198c80 /drivers
parente7c2e4d368e2efc8789b65d141fb633ebb163a70 (diff)
downloadlinux-5c632e22c2e9aa45bcf3dc2ee85594dae3781145.tar.xz
drm/bridge/sii8620: add DVI mode support
If the sink device is in HDMI mode, enable infoframe interrupt in scdt irq handle function else call start_video function immediately, because in DVI mode, there is no infoframe interrupt provided. Rename start_hdmi function to start_video and get rid of the old start_video function. In start_video, if the sink is DVI and mode is MHL1 or MHl2, write appropriate values to registers else the path should remain the same as in HDMI mode. Signed-off-by: Maciej Purski <m.purski@samsung.com> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1510224822-7732-1-git-send-email-m.purski@samsung.com
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/bridge/sil-sii8620.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c
index 268d66d99337..d58db13502bb 100644
--- a/drivers/gpu/drm/bridge/sil-sii8620.c
+++ b/drivers/gpu/drm/bridge/sil-sii8620.c
@@ -1169,8 +1169,18 @@ static void sii8620_set_infoframes(struct sii8620 *ctx)
sii8620_write_buf(ctx, REG_TPI_INFO_B0, buf, ret);
}
-static void sii8620_start_hdmi(struct sii8620 *ctx)
+static void sii8620_start_video(struct sii8620 *ctx)
{
+ if (!sii8620_is_mhl3(ctx))
+ sii8620_stop_video(ctx);
+
+ if (ctx->sink_type == SINK_DVI && !sii8620_is_mhl3(ctx)) {
+ sii8620_write(ctx, REG_RX_HDMI_CTRL2,
+ VAL_RX_HDMI_CTRL2_DEFVAL);
+ sii8620_write(ctx, REG_TPI_SC, 0);
+ return;
+ }
+
sii8620_write_seq_static(ctx,
REG_RX_HDMI_CTRL2, VAL_RX_HDMI_CTRL2_DEFVAL
| BIT_RX_HDMI_CTRL2_USE_AV_MUTE,
@@ -1229,21 +1239,6 @@ static void sii8620_start_hdmi(struct sii8620 *ctx)
sii8620_set_infoframes(ctx);
}
-static void sii8620_start_video(struct sii8620 *ctx)
-{
- if (!sii8620_is_mhl3(ctx))
- sii8620_stop_video(ctx);
-
- switch (ctx->sink_type) {
- case SINK_HDMI:
- sii8620_start_hdmi(ctx);
- break;
- case SINK_DVI:
- default:
- break;
- }
-}
-
static void sii8620_disable_hpd(struct sii8620 *ctx)
{
sii8620_setbits(ctx, REG_EDID_CTRL, BIT_EDID_CTRL_EDID_PRIME_VALID, 0);
@@ -1945,8 +1940,13 @@ static void sii8620_irq_scdt(struct sii8620 *ctx)
if (stat & BIT_INTR_SCDT_CHANGE) {
u8 cstat = sii8620_readb(ctx, REG_TMDS_CSTAT_P3);
- if (cstat & BIT_TMDS_CSTAT_P3_SCDT)
- sii8620_scdt_high(ctx);
+ if (cstat & BIT_TMDS_CSTAT_P3_SCDT) {
+ if (ctx->sink_type == SINK_HDMI)
+ /* enable infoframe interrupt */
+ sii8620_scdt_high(ctx);
+ else
+ sii8620_start_video(ctx);
+ }
}
sii8620_write(ctx, REG_INTR5, stat);