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Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Browse source 
Just refactoring HDMI driver by using infoframe helper
function, fixing GSC Kconfig dependency issue and including trivial
cleanups.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: Use VIDEO_SAMSUNG_EXYNOS_GSC=n as GSC Kconfig dependency
  drm/exynos: gsc: fix spelling mistakes
  exynos-drm: Fix error messages to print flags and size
  drm/exynos/hdmi: refactor infoframe code
This commit is contained in:
Dave Airlie 2016-12-06 11:09:21 +10:00
commit 197aa6ed52
6 changed files with 47 additions and 106 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/exynos/Kconfig
View file

@ -114,7 +114,7 @@ config DRM_EXYNOS_ROTATOR
config DRM_EXYNOS_GSC
bool "GScaler"
depends on DRM_EXYNOS_IPP && ARCH_EXYNOS5 && !VIDEO_SAMSUNG_EXYNOS_GSC
depends on DRM_EXYNOS_IPP && ARCH_EXYNOS5 && VIDEO_SAMSUNG_EXYNOS_GSC=n
help
Choose this option if you want to use Exynos GSC for DRM.

2
drivers/gpu/drm/exynos/exynos_drm_fimc.c
View file

@ -1433,7 +1433,7 @@ static int fimc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
&img_pos[EXYNOS_DRM_OPS_SRC],
&img_pos[EXYNOS_DRM_OPS_DST]);
if (ret) {
dev_err(dev, "failed to set precalser.\n");
dev_err(dev, "failed to set prescaler.\n");
return ret;
}

4
drivers/gpu/drm/exynos/exynos_drm_gem.c
View file

@ -231,12 +231,12 @@ struct exynos_drm_gem *exynos_drm_gem_create(struct drm_device *dev,
int ret;
if (flags & ~(EXYNOS_BO_MASK)) {
DRM_ERROR("invalid flags.\n");
DRM_ERROR("invalid GEM buffer flags: %u\n", flags);
return ERR_PTR(-EINVAL);
}
if (!size) {
DRM_ERROR("invalid size.\n");
DRM_ERROR("invalid GEM buffer size: %lu\n", size);
return ERR_PTR(-EINVAL);
}

2
drivers/gpu/drm/exynos/exynos_drm_gsc.c
View file

@ -1610,7 +1610,7 @@ static int gsc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
&img_pos[EXYNOS_DRM_OPS_SRC],
&img_pos[EXYNOS_DRM_OPS_DST]);
if (ret) {
dev_err(dev, "failed to set precalser.\n");
dev_err(dev, "failed to set prescaler.\n");
return ret;
}

141
drivers/gpu/drm/exynos/exynos_hdmi.c
View file

@ -47,19 +47,6 @@
#define HOTPLUG_DEBOUNCE_MS 1100
/* AVI header and aspect ratio */
#define HDMI_AVI_VERSION 0x02
#define HDMI_AVI_LENGTH 0x0d
/* AUI header info */
#define HDMI_AUI_VERSION 0x01
#define HDMI_AUI_LENGTH 0x0a
/* AVI active format aspect ratio */
#define AVI_SAME_AS_PIC_ASPECT_RATIO 0x08
#define AVI_4_3_CENTER_RATIO 0x09
#define AVI_16_9_CENTER_RATIO 0x0a
enum hdmi_type {
HDMI_TYPE13,
HDMI_TYPE14,
@ -131,7 +118,6 @@ struct hdmi_context {
bool dvi_mode;
struct delayed_work hotplug_work;
struct drm_display_mode current_mode;
u8 cea_video_id;
const struct hdmi_driver_data *drv_data;
void __iomem *regs;
@ -681,6 +667,13 @@ static inline void hdmi_reg_writev(struct hdmi_context *hdata, u32 reg_id,
}
}
static inline void hdmi_reg_write_buf(struct hdmi_context *hdata, u32 reg_id,
u8 *buf, int size)
{
for (reg_id = hdmi_map_reg(hdata, reg_id); size; --size, reg_id += 4)
writel(*buf++, hdata->regs + reg_id);
}
static inline void hdmi_reg_writemask(struct hdmi_context *hdata,
u32 reg_id, u32 value, u32 mask)
{
@ -762,93 +755,50 @@ static int hdmi_clk_set_parents(struct hdmi_context *hdata, bool to_phy)
return ret;
}
static u8 hdmi_chksum(struct hdmi_context *hdata,
u32 start, u8 len, u32 hdr_sum)
static void hdmi_reg_infoframes(struct hdmi_context *hdata)
{
int i;
/* hdr_sum : header0 + header1 + header2
* start : start address of packet byte1
* len : packet bytes - 1 */
for (i = 0; i < len; ++i)
hdr_sum += 0xff & hdmi_reg_read(hdata, start + i * 4);
/* return 2's complement of 8 bit hdr_sum */
return (u8)(~(hdr_sum & 0xff) + 1);
}
static void hdmi_reg_infoframe(struct hdmi_context *hdata,
union hdmi_infoframe *infoframe)
{
u32 hdr_sum;
u8 chksum;
u8 ar;
union hdmi_infoframe frm;
u8 buf[25];
int ret;
if (hdata->dvi_mode) {
hdmi_reg_writeb(hdata, HDMI_VSI_CON,
HDMI_VSI_CON_DO_NOT_TRANSMIT);
hdmi_reg_writeb(hdata, HDMI_AVI_CON,
HDMI_AVI_CON_DO_NOT_TRANSMIT);
hdmi_reg_writeb(hdata, HDMI_VSI_CON,
HDMI_VSI_CON_DO_NOT_TRANSMIT);
hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_NO_TRAN);
return;
}
switch (infoframe->any.type) {
case HDMI_INFOFRAME_TYPE_AVI:
ret = drm_hdmi_avi_infoframe_from_display_mode(&frm.avi,
&hdata->current_mode);
if (!ret)
ret = hdmi_avi_infoframe_pack(&frm.avi, buf, sizeof(buf));
if (ret > 0) {
hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC);
hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->any.type);
hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1,
infoframe->any.version);
hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->any.length);
hdr_sum = infoframe->any.type + infoframe->any.version +
infoframe->any.length;
hdmi_reg_write_buf(hdata, HDMI_AVI_HEADER0, buf, ret);
} else {
DRM_INFO("%s: invalid AVI infoframe (%d)\n", __func__, ret);
}
/* Output format zero hardcoded ,RGB YBCR selection */
hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 |
AVI_ACTIVE_FORMAT_VALID |
AVI_UNDERSCANNED_DISPLAY_VALID);
ret = drm_hdmi_vendor_infoframe_from_display_mode(&frm.vendor.hdmi,
&hdata->current_mode);
if (!ret)
ret = hdmi_vendor_infoframe_pack(&frm.vendor.hdmi, buf,
sizeof(buf));
if (ret > 0) {
hdmi_reg_writeb(hdata, HDMI_VSI_CON, HDMI_VSI_CON_EVERY_VSYNC);
hdmi_reg_write_buf(hdata, HDMI_VSI_HEADER0, buf, ret);
}
/*
* Set the aspect ratio as per the mode, mentioned in
* Table 9 AVI InfoFrame Data Byte 2 of CEA-861-D Standard
*/
ar = hdata->current_mode.picture_aspect_ratio;
switch (ar) {
case HDMI_PICTURE_ASPECT_4_3:
ar |= AVI_4_3_CENTER_RATIO;
break;
case HDMI_PICTURE_ASPECT_16_9:
ar |= AVI_16_9_CENTER_RATIO;
break;
case HDMI_PICTURE_ASPECT_NONE:
default:
ar |= AVI_SAME_AS_PIC_ASPECT_RATIO;
break;
}
hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(2), ar);
hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), hdata->cea_video_id);
chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1),
infoframe->any.length, hdr_sum);
DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum);
hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum);
break;
case HDMI_INFOFRAME_TYPE_AUDIO:
hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02);
hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->any.type);
hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1,
infoframe->any.version);
hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->any.length);
hdr_sum = infoframe->any.type + infoframe->any.version +
infoframe->any.length;
chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1),
infoframe->any.length, hdr_sum);
DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum);
hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum);
break;
default:
break;
ret = hdmi_audio_infoframe_init(&frm.audio);
if (!ret) {
frm.audio.channels = 2;
ret = hdmi_audio_infoframe_pack(&frm.audio, buf, sizeof(buf));
}
if (ret > 0) {
hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_EVERY_VSYNC);
hdmi_reg_write_buf(hdata, HDMI_AUI_HEADER0, buf, ret);
}
}
@ -1127,8 +1077,6 @@ static void hdmi_start(struct hdmi_context *hdata, bool start)
static void hdmi_conf_init(struct hdmi_context *hdata)
{
union hdmi_infoframe infoframe;
/* disable HPD interrupts from HDMI IP block, use GPIO instead */
hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
@ -1164,15 +1112,7 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02);
hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04);
} else {
infoframe.any.type = HDMI_INFOFRAME_TYPE_AVI;
infoframe.any.version = HDMI_AVI_VERSION;
infoframe.any.length = HDMI_AVI_LENGTH;
hdmi_reg_infoframe(hdata, &infoframe);
infoframe.any.type = HDMI_INFOFRAME_TYPE_AUDIO;
infoframe.any.version = HDMI_AUI_VERSION;
infoframe.any.length = HDMI_AUI_LENGTH;
hdmi_reg_infoframe(hdata, &infoframe);
hdmi_reg_infoframes(hdata);
/* enable AVI packet every vsync, fixes purple line problem */
hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5);
@ -1458,7 +1398,6 @@ static void hdmi_mode_set(struct drm_encoder *encoder,
"INTERLACED" : "PROGRESSIVE");
drm_mode_copy(&hdata->current_mode, m);
hdata->cea_video_id = drm_match_cea_mode(mode);
}
static void hdmi_set_refclk(struct hdmi_context *hdata, bool on)

2
drivers/gpu/drm/exynos/regs-hdmi.h
View file

@ -361,9 +361,11 @@
/* AUI bit definition */
#define HDMI_AUI_CON_NO_TRAN (0 << 0)
#define HDMI_AUI_CON_EVERY_VSYNC (1 << 1)
/* VSI bit definition */
#define HDMI_VSI_CON_DO_NOT_TRANSMIT (0 << 0)
#define HDMI_VSI_CON_EVERY_VSYNC (1 << 1)
/* HDCP related registers */
#define HDMI_HDCP_SHA1(n) HDMI_CORE_BASE(0x7000 + 4 * (n))