redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/i915: simplify dvo dpms interface 

All dvo drivers only support 2 dpms states, and our dvo driver
even switches of the dvo port for anything else than DPMS_ON. Hence
ditch this complexity and simply use bool enable.

While reading through this code I've noticed that the mode_set
function of ch7017 is a bit peculiar - it disable the lvds again, even
though the crtc helper code should have done that ... This might be to
work around an issue at driver load, we pretty much ignore the hw
state when taking over.

v2: Also do the conversion for the new ns2501 driver.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Daniel Vetter 2012-08-12 19:27:12 +02:00
parent d2434ab7fb
commit fac3274c4e
8 changed files with 26 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/i915/dvo.h
View File

@ -58,13 +58,12 @@ struct intel_dvo_dev_ops {
void (*create_resources)(struct intel_dvo_device *dvo);
/*
* Turn on/off output or set intermediate power levels if available.
* Turn on/off output.
*
* Unsupported intermediate modes drop to the lower power setting.
* If the mode is DPMSModeOff, the output must be disabled,
* as the DPLL may be disabled afterwards.
* Because none of our dvo drivers support an intermediate power levels,
* we don't expose this in the interfac.
*/
void (*dpms)(struct intel_dvo_device *dvo, int mode);
void (*dpms)(struct intel_dvo_device *dvo, bool enable);
/*
* Callback for testing a video mode for a given output.

8
drivers/gpu/drm/i915/dvo_ch7017.c
View File

@ -163,7 +163,7 @@ struct ch7017_priv {
};
static void ch7017_dump_regs(struct intel_dvo_device *dvo);
static void ch7017_dpms(struct intel_dvo_device *dvo, int mode);
static void ch7017_dpms(struct intel_dvo_device *dvo, bool enable);
static bool ch7017_read(struct intel_dvo_device *dvo, u8 addr, u8 *val)
{
@ -309,7 +309,7 @@ static void ch7017_mode_set(struct intel_dvo_device *dvo,
lvds_power_down = CH7017_LVDS_POWER_DOWN_DEFAULT_RESERVED |
(mode->hdisplay & 0x0700) >> 8;
ch7017_dpms(dvo, DRM_MODE_DPMS_OFF);
ch7017_dpms(dvo, false);
ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT,
horizontal_active_pixel_input);
ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_OUTPUT,
@ -331,7 +331,7 @@ static void ch7017_mode_set(struct intel_dvo_device *dvo,
}
/* set the CH7017 power state */
static void ch7017_dpms(struct intel_dvo_device *dvo, int mode)
static void ch7017_dpms(struct intel_dvo_device *dvo, bool enable)
{
uint8_t val;
@ -345,7 +345,7 @@ static void ch7017_dpms(struct intel_dvo_device *dvo, int mode)
CH7017_DAC3_POWER_DOWN |
CH7017_TV_POWER_DOWN_EN);
if (mode == DRM_MODE_DPMS_ON) {
if (enable) {
/* Turn on the LVDS */
ch7017_write(dvo, CH7017_LVDS_POWER_DOWN,
val & ~CH7017_LVDS_POWER_DOWN_EN);

4
drivers/gpu/drm/i915/dvo_ch7xxx.c
View File

@ -289,9 +289,9 @@ static void ch7xxx_mode_set(struct intel_dvo_device *dvo,
}
/* set the CH7xxx power state */
static void ch7xxx_dpms(struct intel_dvo_device *dvo, int mode)
static void ch7xxx_dpms(struct intel_dvo_device *dvo, bool enable)
{
if (mode == DRM_MODE_DPMS_ON)
if (enable)
ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_DVIL | CH7xxx_PM_DVIP);
else
ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_FPD);

8
drivers/gpu/drm/i915/dvo_ivch.c
View File

@ -288,7 +288,7 @@ static enum drm_mode_status ivch_mode_valid(struct intel_dvo_device *dvo,
}
/** Sets the power state of the panel connected to the ivch */
static void ivch_dpms(struct intel_dvo_device *dvo, int mode)
static void ivch_dpms(struct intel_dvo_device *dvo, bool enable)
{
int i;
uint16_t vr01, vr30, backlight;
@ -297,13 +297,13 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode)
if (!ivch_read(dvo, VR01, &vr01))
return;
if (mode == DRM_MODE_DPMS_ON)
if (enable)
backlight = 1;
else
backlight = 0;
ivch_write(dvo, VR80, backlight);
if (mode == DRM_MODE_DPMS_ON)
if (enable)
vr01 |= VR01_LCD_ENABLE | VR01_DVO_ENABLE;
else
vr01 &= ~(VR01_LCD_ENABLE | VR01_DVO_ENABLE);
@ -315,7 +315,7 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode)
if (!ivch_read(dvo, VR30, &vr30))
break;
if (((vr30 & VR30_PANEL_ON) != 0) == (mode == DRM_MODE_DPMS_ON))
if (((vr30 & VR30_PANEL_ON) != 0) == enable)
break;
udelay(1000);
}

14
drivers/gpu/drm/i915/dvo_ns2501.c
View File

@ -493,19 +493,19 @@ static void ns2501_mode_set(struct intel_dvo_device *dvo,
}
/* set the NS2501 power state */
static void ns2501_dpms(struct intel_dvo_device *dvo, int mode)
static void ns2501_dpms(struct intel_dvo_device *dvo, bool enable)
{
bool ok;
bool restore = false;
struct ns2501_priv *ns = (struct ns2501_priv *)(dvo->dev_priv);
unsigned char ch;
DRM_DEBUG_KMS("%s: Trying set the dpms of the DVO to %d\n",
__FUNCTION__, mode);
DRM_DEBUG_KMS("%s: Trying set the dpms of the DVO to %i\n",
__FUNCTION__, enable);
ch = ns->reg_8_shadow;
if (mode == DRM_MODE_DPMS_ON)
if (enable)
ch |= NS2501_8_PD;
else
ch &= ~NS2501_8_PD;
@ -519,12 +519,10 @@ static void ns2501_dpms(struct intel_dvo_device *dvo, int mode)
ok &= ns2501_writeb(dvo, NS2501_REG8, ch);
ok &=
ns2501_writeb(dvo, 0x34,
(mode ==
DRM_MODE_DPMS_ON) ? (0x03) : (0x00));
enable ? 0x03 : 0x00);
ok &=
ns2501_writeb(dvo, 0x35,
(mode ==
DRM_MODE_DPMS_ON) ? (0xff) : (0x00));
enable ? 0xff : 0x00);
if (!ok) {
if (restore)
restore_dvo(dvo);

4
drivers/gpu/drm/i915/dvo_sil164.c
View File

@ -208,7 +208,7 @@ static void sil164_mode_set(struct intel_dvo_device *dvo,
}
/* set the SIL164 power state */
static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
static void sil164_dpms(struct intel_dvo_device *dvo, bool enable)
{
int ret;
unsigned char ch;
@ -217,7 +217,7 @@ static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
if (ret == false)
return;
if (mode == DRM_MODE_DPMS_ON)
if (enable)
ch |= SIL164_8_PD;
else
ch &= ~SIL164_8_PD;

4
drivers/gpu/drm/i915/dvo_tfp410.c
View File

@ -234,14 +234,14 @@ static void tfp410_mode_set(struct intel_dvo_device *dvo,
}
/* set the tfp410 power state */
static void tfp410_dpms(struct intel_dvo_device *dvo, int mode)
static void tfp410_dpms(struct intel_dvo_device *dvo, bool enable)
{
uint8_t ctl1;
if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1))
return;
if (mode == DRM_MODE_DPMS_ON)
if (enable)
ctl1 |= TFP410_CTL_1_PD;
else
ctl1 &= ~TFP410_CTL_1_PD;

4
drivers/gpu/drm/i915/intel_dvo.c
View File

@ -115,9 +115,9 @@ static void intel_dvo_dpms(struct drm_encoder *encoder, int mode)
if (mode == DRM_MODE_DPMS_ON) {
I915_WRITE(dvo_reg, temp | DVO_ENABLE);
I915_READ(dvo_reg);
intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, mode);
intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);
} else {
intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, mode);
intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);
I915_WRITE(dvo_reg, temp & ~DVO_ENABLE);
I915_READ(dvo_reg);
}