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drm/sun4i: tcon: Don't rely on encoders to set the TCON mode

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Just like we did for the TCON enable and disable, for historical reasons we
used to rely on the encoders calling the TCON mode_set function, while the
CRTC has a callback for that.

Let's implement it in order to reduce the boilerplate code.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/faa3a4d511039af1d116270dfef3a8b60ca3591e.1508231063.git-series.maxime.ripard@free-electrons.com
This commit is contained in:
Maxime Ripard 2017-10-17 11:06:13 +02:00
parent 45e88f994a
commit 5b8f09100d
8 changed files with 37 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/sun4i/sun4i_crtc.c
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@ -115,11 +115,21 @@ static void sun4i_crtc_atomic_enable(struct drm_crtc *crtc,
sun4i_tcon_set_status(scrtc->tcon, encoder, true);
}
static void sun4i_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct drm_display_mode *mode = &crtc->state->adjusted_mode;
struct drm_encoder *encoder = sun4i_crtc_get_encoder(crtc);
struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
sun4i_tcon_mode_set(scrtc->tcon, encoder, mode);
}
static const struct drm_crtc_helper_funcs sun4i_crtc_helper_funcs = {
.atomic_begin = sun4i_crtc_atomic_begin,
.atomic_flush = sun4i_crtc_atomic_flush,
.atomic_enable = sun4i_crtc_atomic_enable,
.atomic_disable = sun4i_crtc_atomic_disable,
.mode_set_nofb = sun4i_crtc_mode_set_nofb,
};
static int sun4i_crtc_enable_vblank(struct drm_crtc *crtc)

1
drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
View File

@ -13,7 +13,6 @@
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "sun4i_tcon.h"
#include "sun4i_hdmi.h"
struct sun4i_ddc {

7
drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
View File

@ -30,7 +30,6 @@
#include "sun4i_crtc.h"
#include "sun4i_drv.h"
#include "sun4i_hdmi.h"
#include "sun4i_tcon.h"
static inline struct sun4i_hdmi *
drm_encoder_to_sun4i_hdmi(struct drm_encoder *encoder)
@ -120,15 +119,9 @@ static void sun4i_hdmi_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode)
{
struct sun4i_hdmi *hdmi = drm_encoder_to_sun4i_hdmi(encoder);
struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc);
struct sun4i_tcon *tcon = crtc->tcon;
unsigned int x, y;
u32 val;
sun4i_tcon1_mode_set(tcon, mode);
sun4i_tcon_set_mux(tcon, 1, encoder);
clk_set_rate(tcon->sclk1, mode->crtc_clock * 1000);
clk_set_rate(hdmi->mod_clk, mode->crtc_clock * 1000);
clk_set_rate(hdmi->tmds_clk, mode->crtc_clock * 1000);

1
drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c
View File

@ -12,7 +12,6 @@
#include <linux/clk-provider.h>
#include "sun4i_tcon.h"
#include "sun4i_hdmi.h"
struct sun4i_tmds {

15
drivers/gpu/drm/sun4i/sun4i_rgb.c
View File

@ -153,22 +153,7 @@ static void sun4i_rgb_encoder_disable(struct drm_encoder *encoder)
}
}
static void sun4i_rgb_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct sun4i_rgb *rgb = drm_encoder_to_sun4i_rgb(encoder);
struct sun4i_tcon *tcon = rgb->tcon;
sun4i_tcon0_mode_set(tcon, mode);
sun4i_tcon_set_mux(tcon, 0, encoder);
/* FIXME: This seems to be board specific */
clk_set_phase(tcon->dclk, 120);
}
static struct drm_encoder_helper_funcs sun4i_rgb_enc_helper_funcs = {
.mode_set = sun4i_rgb_encoder_mode_set,
.disable = sun4i_rgb_encoder_disable,
.enable = sun4i_rgb_encoder_enable,
};

31
drivers/gpu/drm/sun4i/sun4i_tcon.c
View File

@ -139,7 +139,6 @@ void sun4i_tcon_set_mux(struct sun4i_tcon *tcon, int channel,
DRM_DEBUG_DRIVER("Muxing encoder %s to CRTC %s: %d\n",
encoder->name, encoder->crtc->name, ret);
}
EXPORT_SYMBOL(sun4i_tcon_set_mux);
static int sun4i_tcon_get_clk_delay(const struct drm_display_mode *mode,
int channel)
@ -159,8 +158,8 @@ static int sun4i_tcon_get_clk_delay(const struct drm_display_mode *mode,
return delay;
}
void sun4i_tcon0_mode_set(struct sun4i_tcon *tcon,
struct drm_display_mode *mode)
static void sun4i_tcon0_mode_set(struct sun4i_tcon *tcon,
const struct drm_display_mode *mode)
{
unsigned int bp, hsync, vsync;
u8 clk_delay;
@ -233,10 +232,9 @@ void sun4i_tcon0_mode_set(struct sun4i_tcon *tcon,
/* Enable the output on the pins */
regmap_write(tcon->regs, SUN4I_TCON0_IO_TRI_REG, 0);
}
EXPORT_SYMBOL(sun4i_tcon0_mode_set);
void sun4i_tcon1_mode_set(struct sun4i_tcon *tcon,
struct drm_display_mode *mode)
static void sun4i_tcon1_mode_set(struct sun4i_tcon *tcon,
const struct drm_display_mode *mode)
{
unsigned int bp, hsync, vsync, vtotal;
u8 clk_delay;
@ -324,7 +322,26 @@ void sun4i_tcon1_mode_set(struct sun4i_tcon *tcon,
SUN4I_TCON_GCTL_IOMAP_MASK,
SUN4I_TCON_GCTL_IOMAP_TCON1);
}
EXPORT_SYMBOL(sun4i_tcon1_mode_set);
void sun4i_tcon_mode_set(struct sun4i_tcon *tcon,
const struct drm_encoder *encoder,
const struct drm_display_mode *mode)
{
switch (encoder->encoder_type) {
case DRM_MODE_ENCODER_NONE:
sun4i_tcon0_mode_set(tcon, mode);
sun4i_tcon_set_mux(tcon, 0, encoder);
break;
case DRM_MODE_ENCODER_TVDAC:
case DRM_MODE_ENCODER_TMDS:
sun4i_tcon1_mode_set(tcon, mode);
sun4i_tcon_set_mux(tcon, 1, encoder);
break;
default:
DRM_DEBUG_DRIVER("Unknown encoder type, doing nothing...\n");
}
}
EXPORT_SYMBOL(sun4i_tcon_mode_set);
static void sun4i_tcon_finish_page_flip(struct drm_device *dev,
struct sun4i_crtc *scrtc)

11
drivers/gpu/drm/sun4i/sun4i_tcon.h
View File

@ -191,15 +191,10 @@ struct drm_bridge *sun4i_tcon_find_bridge(struct device_node *node);
struct drm_panel *sun4i_tcon_find_panel(struct device_node *node);
void sun4i_tcon_enable_vblank(struct sun4i_tcon *tcon, bool enable);
void sun4i_tcon_mode_set(struct sun4i_tcon *tcon,
const struct drm_encoder *encoder,
const struct drm_display_mode *mode);
void sun4i_tcon_set_status(struct sun4i_tcon *crtc,
const struct drm_encoder *encoder, bool enable);
/* Mode Related Controls */
void sun4i_tcon_set_mux(struct sun4i_tcon *tcon, int channel,
struct drm_encoder *encoder);
void sun4i_tcon0_mode_set(struct sun4i_tcon *tcon,
struct drm_display_mode *mode);
void sun4i_tcon1_mode_set(struct sun4i_tcon *tcon,
struct drm_display_mode *mode);
#endif /* __SUN4I_TCON_H__ */

6
drivers/gpu/drm/sun4i/sun4i_tv.c
View File

@ -24,7 +24,6 @@
#include "sun4i_crtc.h"
#include "sun4i_drv.h"
#include "sun4i_tcon.h"
#include "sunxi_engine.h"
#define SUN4I_TVE_EN_REG 0x000
@ -374,13 +373,8 @@ static void sun4i_tv_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode)
{
struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc);
struct sun4i_tcon *tcon = crtc->tcon;
const struct tv_mode *tv_mode = sun4i_tv_find_tv_by_mode(mode);
sun4i_tcon1_mode_set(tcon, mode);
sun4i_tcon_set_mux(tcon, 1, encoder);
/* Enable and map the DAC to the output */
regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
SUN4I_TVE_EN_DAC_MAP_MASK,