Cc: Rob Herring <rob.herring@xxxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Stephen Warren <swarren@xxxxxxxxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: driverdev-devel@xxxxxxxxxxxxxxxxxxxxxx
Cc: David Airlie <airlied@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: Sascha Hauer <kernel@xxxxxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: Eric Bénard <eric@xxxxxxxxxx>
Signed-off-by: Denis Carikli <denis@xxxxxxxxxx>
---
drivers/staging/imx-drm/parallel-display.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/staging/imx-drm/parallel-display.c b/drivers/staging/imx-drm/parallel-display.c
index 1c8f63f..dfab7b5 100644
--- a/drivers/staging/imx-drm/parallel-display.c
+++ b/drivers/staging/imx-drm/parallel-display.c
@@ -22,6 +22,7 @@
#include <drm/drmP.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
+#include <linux/regulator/consumer.h>
#include <linux/videodev2.h>
#include <video/videomode.h>
#include <video/of_display_timing.h>
@@ -37,6 +38,7 @@ struct imx_parallel_display {
struct drm_encoder encoder;
struct imx_drm_encoder *imx_drm_encoder;
struct device *dev;
+ struct regulator *lcd_reg;
void *edid;
int edid_len;
u32 interface_pix_fmt;
@@ -129,6 +131,10 @@ static void imx_pd_encoder_prepare(struct drm_encoder *encoder)
{
struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
+ if (imxpd->lcd_reg)
+ if (regulator_enable(imxpd->lcd_reg))
+ dev_err(imxpd->dev, "Failed to enable lcd regulator.\n");
+
imx_drm_crtc_panel_format(encoder->crtc, DRM_MODE_ENCODER_NONE,
imxpd->interface_pix_fmt);
}
@@ -145,6 +151,11 @@ static void imx_pd_encoder_mode_set(struct drm_encoder *encoder,
static void imx_pd_encoder_disable(struct drm_encoder *encoder)
{
+ struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
+
+ if (imxpd->lcd_reg)
+ if (regulator_disable(imxpd->lcd_reg))
+ dev_err(imxpd->dev, "Failed to disable lcd regulator.\n");
}
static void imx_pd_encoder_destroy(struct drm_encoder *encoder)
@@ -248,6 +259,14 @@ static int imx_pd_probe(struct platform_device *pdev)
if (ret)
return ret;
+ imxpd->lcd_reg = devm_regulator_get(&pdev->dev, "lcd");
+ if (IS_ERR(imxpd->lcd_reg)) {
+ dev_dbg(&pdev->dev, "no lcd-supply given.\n");
+ imxpd->lcd_reg = NULL;
+ } else {
+ dev_info(&pdev->dev, "lcd-supply found.\n");
+ }
+
ret = imx_drm_encoder_add_possible_crtcs(imxpd->imx_drm_encoder, np);
platform_set_drvdata(pdev, imxpd);
--
1.7.9.5
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