[PATCH 04/11] drm/sun4i: tv: Get tcon and backend pointers from associated crtc

Chen-Yu Tsai
2017-03-09T10:05:27Z

The drm_encoder structure provides us with a pointer to the crtc
currently tied to the encoder. Subsequently we can extract the
tcon and backend pointers from our crtc structure, instead of
getting it directly from the sun4i_drv structure.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
drivers/gpu/drm/sun4i/sun4i_tv.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c
index 32ed5fdf0c4d..49c49431a053 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tv.c
@@ -23,6 +23,7 @@
#include <drm/drm_panel.h>

#include "sun4i_backend.h"
+#include "sun4i_crtc.h"
#include "sun4i_drv.h"
#include "sun4i_tcon.h"

@@ -350,8 +351,9 @@ static int sun4i_tv_atomic_check(struct drm_encoder *encoder,
static void sun4i_tv_disable(struct drm_encoder *encoder)
{
struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
- struct sun4i_drv *drv = tv->drv;
- struct sun4i_tcon *tcon = drv->tcon;
+ struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc);
+ struct sun4i_tcon *tcon = crtc->tcon;
+ struct sun4i_backend *backend = crtc->backend;

DRM_DEBUG_DRIVER("Disabling the TV Output\n");

@@ -360,18 +362,19 @@ static void sun4i_tv_disable(struct drm_encoder *encoder)
regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
SUN4I_TVE_EN_ENABLE,
0);
- sun4i_backend_disable_color_correction(drv->backend);
+ sun4i_backend_disable_color_correction(backend);
}

static void sun4i_tv_enable(struct drm_encoder *encoder)
{
struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
- struct sun4i_drv *drv = tv->drv;
- struct sun4i_tcon *tcon = drv->tcon;
+ struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc);
+ struct sun4i_tcon *tcon = crtc->tcon;
+ struct sun4i_backend *backend = crtc->backend;

DRM_DEBUG_DRIVER("Enabling the TV Output\n");

- sun4i_backend_apply_color_correction(drv->backend);
+ sun4i_backend_apply_color_correction(backend);

regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
SUN4I_TVE_EN_ENABLE,
@@ -385,8 +388,8 @@ 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_drv *drv = tv->drv;
- struct sun4i_tcon *tcon = drv->tcon;
+ 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);
--
2.11.0