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drm: sti: prepare sti_tvout to support auxiliary crtc 

Change some functions prototype to prepare the introduction of
auxiliary crtc. It will also help to have a DVO encoder.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
hifive-unleashed-5.1
Benjamin Gaignard 2014-12-04 11:31:37 +01:00
parent ca614aadd7
commit ca279601fb
1 changed files with 52 additions and 40 deletions
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92
drivers/gpu/drm/sti/sti_tvout.c
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@ -149,14 +149,15 @@ static void tvout_write(struct sti_tvout *tvout, u32 val, int offset)
* Set the clipping mode of a VIP
*
* @tvout: tvout structure
* @reg: register to set
* @cr_r:
* @y_g:
* @cb_b:
*/
static void tvout_vip_set_color_order(struct sti_tvout *tvout,
static void tvout_vip_set_color_order(struct sti_tvout *tvout, int reg,
u32 cr_r, u32 y_g, u32 cb_b)
{
u32 val = tvout_read(tvout, TVO_VIP_HDMI);
u32 val = tvout_read(tvout, reg);
val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT);
val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT);
@ -165,52 +166,58 @@ static void tvout_vip_set_color_order(struct sti_tvout *tvout,
val |= y_g << TVO_VIP_REORDER_G_SHIFT;
val |= cb_b << TVO_VIP_REORDER_B_SHIFT;
tvout_write(tvout, val, TVO_VIP_HDMI);
tvout_write(tvout, val, reg);
}
/**
* Set the clipping mode of a VIP
*
* @tvout: tvout structure
* @reg: register to set
* @range: clipping range
*/
static void tvout_vip_set_clip_mode(struct sti_tvout *tvout, u32 range)
static void tvout_vip_set_clip_mode(struct sti_tvout *tvout, int reg, u32 range)
{
u32 val = tvout_read(tvout, TVO_VIP_HDMI);
u32 val = tvout_read(tvout, reg);
val &= ~(TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT);
val |= range << TVO_VIP_CLIP_SHIFT;
tvout_write(tvout, val, TVO_VIP_HDMI);
tvout_write(tvout, val, reg);
}
/**
* Set the rounded value of a VIP
*
* @tvout: tvout structure
* @reg: register to set
* @rnd: rounded val per component
*/
static void tvout_vip_set_rnd(struct sti_tvout *tvout, u32 rnd)
static void tvout_vip_set_rnd(struct sti_tvout *tvout, int reg, u32 rnd)
{
u32 val = tvout_read(tvout, TVO_VIP_HDMI);
u32 val = tvout_read(tvout, reg);
val &= ~(TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT);
val |= rnd << TVO_VIP_RND_SHIFT;
tvout_write(tvout, val, TVO_VIP_HDMI);
tvout_write(tvout, val, reg);
}
/**
* Select the VIP input
*
* @tvout: tvout structure
* @reg: register to set
* @main_path: main or auxiliary path
* @sel_input_logic_inverted: need to invert the logic
* @sel_input: selected_input (main/aux + conv)
*/
static void tvout_vip_set_sel_input(struct sti_tvout *tvout,
int reg,
bool main_path,
bool sel_input_logic_inverted,
enum sti_tvout_video_out_type video_out)
{
u32 sel_input;
u32 val = tvout_read(tvout, TVO_VIP_HDMI);
u32 val = tvout_read(tvout, reg);
if (main_path)
sel_input = TVO_VIP_SEL_INPUT_MAIN;
@ -232,22 +239,24 @@ static void tvout_vip_set_sel_input(struct sti_tvout *tvout,
val &= ~TVO_VIP_SEL_INPUT_MASK;
val |= sel_input;
tvout_write(tvout, val, TVO_VIP_HDMI);
tvout_write(tvout, val, reg);
}
/**
* Select the input video signed or unsigned
*
* @tvout: tvout structure
* @reg: register to set
* @in_vid_signed: used video input format
*/
static void tvout_vip_set_in_vid_fmt(struct sti_tvout *tvout, u32 in_vid_fmt)
static void tvout_vip_set_in_vid_fmt(struct sti_tvout *tvout,
int reg, u32 in_vid_fmt)
{
u32 val = tvout_read(tvout, TVO_VIP_HDMI);
u32 val = tvout_read(tvout, reg);
val &= ~TVO_IN_FMT_SIGNED;
val |= in_vid_fmt;
tvout_write(tvout, val, TVO_MAIN_IN_VID_FORMAT);
tvout_write(tvout, val, reg);
}
/**
@ -261,6 +270,7 @@ static void tvout_hdmi_start(struct sti_tvout *tvout, bool main_path)
{
struct device_node *node = tvout->dev->of_node;
bool sel_input_logic_inverted = false;
u32 tvo_in_vid_format;
dev_dbg(tvout->dev, "%s\n", __func__);
@ -268,33 +278,36 @@ static void tvout_hdmi_start(struct sti_tvout *tvout, bool main_path)
DRM_DEBUG_DRIVER("main vip for hdmi\n");
/* select the input sync for hdmi = VTG set 1 */
tvout_write(tvout, TVO_SYNC_MAIN_VTG_SET_1, TVO_HDMI_SYNC_SEL);
tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
} else {
DRM_DEBUG_DRIVER("aux vip for hdmi\n");
/* select the input sync for hdmi = VTG set 1 */
tvout_write(tvout, TVO_SYNC_AUX_VTG_SET_1, TVO_HDMI_SYNC_SEL);
tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
}
/* set color channel order */
tvout_vip_set_color_order(tvout,
tvout_vip_set_color_order(tvout, TVO_VIP_HDMI,
TVO_VIP_REORDER_CR_R_SEL,
TVO_VIP_REORDER_Y_G_SEL,
TVO_VIP_REORDER_CB_B_SEL);
/* set clipping mode (Limited range RGB/Y) */
tvout_vip_set_clip_mode(tvout, TVO_VIP_CLIP_LIMITED_RANGE_RGB_Y);
tvout_vip_set_clip_mode(tvout, TVO_VIP_HDMI,
TVO_VIP_CLIP_LIMITED_RANGE_RGB_Y);
/* set round mode (rounded to 8-bit per component) */
tvout_vip_set_rnd(tvout, TVO_VIP_RND_8BIT_ROUNDED);
tvout_vip_set_rnd(tvout, TVO_VIP_HDMI, TVO_VIP_RND_8BIT_ROUNDED);
if (of_device_is_compatible(node, "st,stih407-tvout")) {
/* set input video format */
tvout_vip_set_in_vid_fmt(tvout->regs + TVO_MAIN_IN_VID_FORMAT,
TVO_IN_FMT_SIGNED);
tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format,
TVO_IN_FMT_SIGNED);
sel_input_logic_inverted = true;
}
/* input selection */
tvout_vip_set_sel_input(tvout, main_path,
tvout_vip_set_sel_input(tvout, TVO_VIP_HDMI, main_path,
sel_input_logic_inverted, STI_TVOUT_VIDEO_OUT_RGB);
}
@ -309,48 +322,47 @@ static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
{
struct device_node *node = tvout->dev->of_node;
bool sel_input_logic_inverted = false;
u32 tvo_in_vid_format;
int val;
dev_dbg(tvout->dev, "%s\n", __func__);
if (!main_path) {
DRM_ERROR("HD Analog on aux not implemented\n");
return;
if (main_path) {
val = TVO_SYNC_MAIN_VTG_SET_2 << TVO_SYNC_HD_DCS_SHIFT;
val |= TVO_SYNC_MAIN_VTG_SET_3;
tvout_write(tvout, val, TVO_HD_SYNC_SEL);
tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
} else {
val = TVO_SYNC_AUX_VTG_SET_2 << TVO_SYNC_HD_DCS_SHIFT;
val |= TVO_SYNC_AUX_VTG_SET_3;
tvout_write(tvout, val, TVO_HD_SYNC_SEL);
tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
}
DRM_DEBUG_DRIVER("main vip for HDF\n");
/* set color channel order */
tvout_vip_set_color_order(tvout->regs + TVO_VIP_HDF,
tvout_vip_set_color_order(tvout, TVO_VIP_HDF,
TVO_VIP_REORDER_CR_R_SEL,
TVO_VIP_REORDER_Y_G_SEL,
TVO_VIP_REORDER_CB_B_SEL);
/* set clipping mode (Limited range RGB/Y) */
tvout_vip_set_clip_mode(tvout->regs + TVO_VIP_HDF,
TVO_VIP_CLIP_LIMITED_RANGE_CB_CR);
/* set clipping mode (EAV/SAV clipping) */
tvout_vip_set_clip_mode(tvout, TVO_VIP_HDF, TVO_VIP_CLIP_EAV_SAV);
/* set round mode (rounded to 10-bit per component) */
tvout_vip_set_rnd(tvout->regs + TVO_VIP_HDF, TVO_VIP_RND_10BIT_ROUNDED);
tvout_vip_set_rnd(tvout, TVO_VIP_HDF, TVO_VIP_RND_10BIT_ROUNDED);
if (of_device_is_compatible(node, "st,stih407-tvout")) {
/* set input video format */
tvout_vip_set_in_vid_fmt(tvout, TVO_IN_FMT_SIGNED);
tvout_vip_set_in_vid_fmt(tvout,
tvo_in_vid_format, TVO_IN_FMT_SIGNED);
sel_input_logic_inverted = true;
}
/* Input selection */
tvout_vip_set_sel_input(tvout->regs + TVO_VIP_HDF,
main_path,
tvout_vip_set_sel_input(tvout, TVO_VIP_HDF, main_path,
sel_input_logic_inverted,
STI_TVOUT_VIDEO_OUT_YUV);
/* select the input sync for HD analog = VTG set 3
* and HD DCS = VTG set 2 */
tvout_write(tvout,
(TVO_SYNC_MAIN_VTG_SET_2 << TVO_SYNC_HD_DCS_SHIFT)
| TVO_SYNC_MAIN_VTG_SET_3,
TVO_HD_SYNC_SEL);
/* power up HD DAC */
tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
}