aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/exynos/exynos_hdmi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_hdmi.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_hdmi.c66
1 files changed, 26 insertions, 40 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index a0e10aeb0e67..c021ddc1ffb4 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -34,6 +34,7 @@
34#include <linux/io.h> 34#include <linux/io.h>
35#include <linux/of.h> 35#include <linux/of.h>
36#include <linux/of_gpio.h> 36#include <linux/of_gpio.h>
37#include <linux/hdmi.h>
37 38
38#include <drm/exynos_drm.h> 39#include <drm/exynos_drm.h>
39 40
@@ -59,19 +60,6 @@
59#define HDMI_AUI_VERSION 0x01 60#define HDMI_AUI_VERSION 0x01
60#define HDMI_AUI_LENGTH 0x0A 61#define HDMI_AUI_LENGTH 0x0A
61 62
62/* HDMI infoframe to configure HDMI out packet header, AUI and AVI */
63enum HDMI_PACKET_TYPE {
64 /* refer to Table 5-8 Packet Type in HDMI specification v1.4a */
65 /* InfoFrame packet type */
66 HDMI_PACKET_TYPE_INFOFRAME = 0x80,
67 /* Vendor-Specific InfoFrame */
68 HDMI_PACKET_TYPE_VSI = HDMI_PACKET_TYPE_INFOFRAME + 1,
69 /* Auxiliary Video information InfoFrame */
70 HDMI_PACKET_TYPE_AVI = HDMI_PACKET_TYPE_INFOFRAME + 2,
71 /* Audio information InfoFrame */
72 HDMI_PACKET_TYPE_AUI = HDMI_PACKET_TYPE_INFOFRAME + 4
73};
74
75enum hdmi_type { 63enum hdmi_type {
76 HDMI_TYPE13, 64 HDMI_TYPE13,
77 HDMI_TYPE14, 65 HDMI_TYPE14,
@@ -379,12 +367,6 @@ static const struct hdmiphy_config hdmiphy_v14_configs[] = {
379 }, 367 },
380}; 368};
381 369
382struct hdmi_infoframe {
383 enum HDMI_PACKET_TYPE type;
384 u8 ver;
385 u8 len;
386};
387
388static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id) 370static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
389{ 371{
390 return readl(hdata->regs + reg_id); 372 return readl(hdata->regs + reg_id);
@@ -682,7 +664,7 @@ static u8 hdmi_chksum(struct hdmi_context *hdata,
682} 664}
683 665
684static void hdmi_reg_infoframe(struct hdmi_context *hdata, 666static void hdmi_reg_infoframe(struct hdmi_context *hdata,
685 struct hdmi_infoframe *infoframe) 667 union hdmi_infoframe *infoframe)
686{ 668{
687 u32 hdr_sum; 669 u32 hdr_sum;
688 u8 chksum; 670 u8 chksum;
@@ -700,13 +682,15 @@ static void hdmi_reg_infoframe(struct hdmi_context *hdata,
700 return; 682 return;
701 } 683 }
702 684
703 switch (infoframe->type) { 685 switch (infoframe->any.type) {
704 case HDMI_PACKET_TYPE_AVI: 686 case HDMI_INFOFRAME_TYPE_AVI:
705 hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC); 687 hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC);
706 hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->type); 688 hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->any.type);
707 hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1, infoframe->ver); 689 hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1,
708 hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->len); 690 infoframe->any.version);
709 hdr_sum = infoframe->type + infoframe->ver + infoframe->len; 691 hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->any.length);
692 hdr_sum = infoframe->any.type + infoframe->any.version +
693 infoframe->any.length;
710 694
711 /* Output format zero hardcoded ,RGB YBCR selection */ 695 /* Output format zero hardcoded ,RGB YBCR selection */
712 hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 | 696 hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 |
@@ -722,18 +706,20 @@ static void hdmi_reg_infoframe(struct hdmi_context *hdata,
722 hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), vic); 706 hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), vic);
723 707
724 chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1), 708 chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1),
725 infoframe->len, hdr_sum); 709 infoframe->any.length, hdr_sum);
726 DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum); 710 DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum);
727 hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum); 711 hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum);
728 break; 712 break;
729 case HDMI_PACKET_TYPE_AUI: 713 case HDMI_INFOFRAME_TYPE_AUDIO:
730 hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02); 714 hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02);
731 hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->type); 715 hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->any.type);
732 hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1, infoframe->ver); 716 hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1,
733 hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->len); 717 infoframe->any.version);
734 hdr_sum = infoframe->type + infoframe->ver + infoframe->len; 718 hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->any.length);
719 hdr_sum = infoframe->any.type + infoframe->any.version +
720 infoframe->any.length;
735 chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1), 721 chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1),
736 infoframe->len, hdr_sum); 722 infoframe->any.length, hdr_sum);
737 DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum); 723 DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum);
738 hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum); 724 hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum);
739 break; 725 break;
@@ -985,7 +971,7 @@ static void hdmi_conf_reset(struct hdmi_context *hdata)
985 971
986static void hdmi_conf_init(struct hdmi_context *hdata) 972static void hdmi_conf_init(struct hdmi_context *hdata)
987{ 973{
988 struct hdmi_infoframe infoframe; 974 union hdmi_infoframe infoframe;
989 975
990 /* disable HPD interrupts from HDMI IP block, use GPIO instead */ 976 /* disable HPD interrupts from HDMI IP block, use GPIO instead */
991 hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL | 977 hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
@@ -1021,14 +1007,14 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
1021 hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02); 1007 hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02);
1022 hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04); 1008 hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04);
1023 } else { 1009 } else {
1024 infoframe.type = HDMI_PACKET_TYPE_AVI; 1010 infoframe.any.type = HDMI_INFOFRAME_TYPE_AVI;
1025 infoframe.ver = HDMI_AVI_VERSION; 1011 infoframe.any.version = HDMI_AVI_VERSION;
1026 infoframe.len = HDMI_AVI_LENGTH; 1012 infoframe.any.length = HDMI_AVI_LENGTH;
1027 hdmi_reg_infoframe(hdata, &infoframe); 1013 hdmi_reg_infoframe(hdata, &infoframe);
1028 1014
1029 infoframe.type = HDMI_PACKET_TYPE_AUI; 1015 infoframe.any.type = HDMI_INFOFRAME_TYPE_AUDIO;
1030 infoframe.ver = HDMI_AUI_VERSION; 1016 infoframe.any.version = HDMI_AUI_VERSION;
1031 infoframe.len = HDMI_AUI_LENGTH; 1017 infoframe.any.length = HDMI_AUI_LENGTH;
1032 hdmi_reg_infoframe(hdata, &infoframe); 1018 hdmi_reg_infoframe(hdata, &infoframe);
1033 1019
1034 /* enable AVI packet every vsync, fixes purple line problem */ 1020 /* enable AVI packet every vsync, fixes purple line problem */