2021-02-02 23:58:35

by Oliver Graute

[permalink] [raw]
Subject: [PATCH v3] drm/panel: simple: add SGD GKTW70SDAD1SD

Add support for the Solomon Goldentek Display Model: GKTW70SDAD1SD
to panel-simple.

The panel spec from Variscite can be found at:
https://www.variscite.com/wp-content/uploads/2017/12/VLCD-CAP-GLD-RGB.pdf

Signed-off-by: Oliver Graute <[email protected]>
Cc: Marco Felsch <[email protected]>
Cc: Fabio Estevam <[email protected]>
---

v3:

- added flags
- added delay

v2:

- changed bpc to 6
- set max value of pixelclock
- increased hfront_porch and hback_porch
- dropped connector-type

adding of bus_format = MEDIA_BUS_FMT_RGB666_1X18 results in wrong colors.
omitting bus_format and using some default is better (Tux Pinguin is colored
fine)

drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 2be358f..c63f6a8 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -3336,6 +3336,36 @@ static const struct panel_desc satoz_sat050at40h12r2 = {
.connector_type = DRM_MODE_CONNECTOR_LVDS,
};

+static const struct display_timing sgd_gktw70sdad1sd_timing = {
+ .pixelclock = {30000000, 30000000, 40000000},
+ .hactive = { 800, 800, 800},
+ .hfront_porch = {40, 40, 40},
+ .hback_porch = {40, 40, 40},
+ .hsync_len = {48, 48, 48},
+ .vactive = {480, 480, 480},
+ .vfront_porch = {13, 13, 13},
+ .vback_porch = {29, 29, 29},
+ .vsync_len = {3, 3, 3},
+ .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+ DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_NEGEDGE,
+};
+
+static const struct panel_desc sgd_gktw70sdad1sd = {
+ .timings = &sgd_gktw70sdad1sd_timing,
+ .num_timings = 1,
+ .bpc = 6,
+ .size = {
+ .width = 153,
+ .height = 86,
+ },
+ .delay = {
+ .prepare = 20 + 20 + 10 + 10,
+ .enable = 50,
+ .disable = 50,
+ .unprepare = 10 + 10 + 20 + 20,
+ },
+};
+
static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
.clock = 168480,
.hdisplay = 1920,
@@ -4222,6 +4252,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "satoz,sat050at40h12r2",
.data = &satoz_sat050at40h12r2,
}, {
+ .compatible = "sgd,gktw70sdad1sd",
+ .data = &sgd_gktw70sdad1sd,
+ }, {
.compatible = "sharp,ld-d5116z01b",
.data = &sharp_ld_d5116z01b,
}, {
--
2.7.4


2021-02-03 00:30:33

by Marco Felsch

[permalink] [raw]
Subject: Re: [PATCH v3] drm/panel: simple: add SGD GKTW70SDAD1SD

Hi Oliver,

On 21-02-02 18:35, Oliver Graute wrote:
> Add support for the Solomon Goldentek Display Model: GKTW70SDAD1SD
> to panel-simple.
>
> The panel spec from Variscite can be found at:
> https://www.variscite.com/wp-content/uploads/2017/12/VLCD-CAP-GLD-RGB.pdf
>
> Signed-off-by: Oliver Graute <[email protected]>
> Cc: Marco Felsch <[email protected]>
> Cc: Fabio Estevam <[email protected]>
> ---
>
> v3:
>
> - added flags
> - added delay

Thanks, did you test the changes?
I just picked it from the datasheet.

Regards,
Marco

2021-02-05 01:14:32

by Oliver Graute

[permalink] [raw]
Subject: Re: [PATCH v3] drm/panel: simple: add SGD GKTW70SDAD1SD

On 02/02/21, Marco Felsch wrote:
> Hi Oliver,
>
> On 21-02-02 18:35, Oliver Graute wrote:
> > Add support for the Solomon Goldentek Display Model: GKTW70SDAD1SD
> > to panel-simple.
> >
> > The panel spec from Variscite can be found at:
> > https://www.variscite.com/wp-content/uploads/2017/12/VLCD-CAP-GLD-RGB.pdf
> >
> > Signed-off-by: Oliver Graute <[email protected]>
> > Cc: Marco Felsch <[email protected]>
> > Cc: Fabio Estevam <[email protected]>
> > ---
> >
> > v3:
> >
> > - added flags
> > - added delay
>
> Thanks, did you test the changes?
> I just picked it from the datasheet.

yes, it didn't break anything.

Best regards,

Oliver

2021-02-05 01:25:08

by Fabio Estevam

[permalink] [raw]
Subject: Re: [PATCH v3] drm/panel: simple: add SGD GKTW70SDAD1SD

Hi Oliver,

On Tue, Feb 2, 2021 at 2:35 PM Oliver Graute <[email protected]> wrote:

> +static const struct panel_desc sgd_gktw70sdad1sd = {
> + .timings = &sgd_gktw70sdad1sd_timing,
> + .num_timings = 1,
> + .bpc = 6,
> + .size = {
> + .width = 153,
> + .height = 86,
> + },
> + .delay = {
> + .prepare = 20 + 20 + 10 + 10,

Adding the datasheet label like Marco suggested make it clearer where
these numbers come from : /* T0 + T2 + T3 + T4 */

Glad you got it working on your imx6ul board:

Reviewed-by: Fabio Estevam <[email protected]>

2021-02-05 09:15:26

by Marco Felsch

[permalink] [raw]
Subject: Re: [PATCH v3] drm/panel: simple: add SGD GKTW70SDAD1SD

On 21-02-04 19:15, Oliver Graute wrote:
> On 02/02/21, Marco Felsch wrote:
> > Hi Oliver,
> >
> > On 21-02-02 18:35, Oliver Graute wrote:
> > > Add support for the Solomon Goldentek Display Model: GKTW70SDAD1SD
> > > to panel-simple.
> > >
> > > The panel spec from Variscite can be found at:
> > > https://www.variscite.com/wp-content/uploads/2017/12/VLCD-CAP-GLD-RGB.pdf
> > >
> > > Signed-off-by: Oliver Graute <[email protected]>
> > > Cc: Marco Felsch <[email protected]>
> > > Cc: Fabio Estevam <[email protected]>
> > > ---
> > >
> > > v3:
> > >
> > > - added flags
> > > - added delay
> >
> > Thanks, did you test the changes?
> > I just picked it from the datasheet.
>
> yes, it didn't break anything.

Feel free to add my:

Reviewed-by: Marco Felsch <[email protected]>

PS:
+1 for Fabio's comment ^^

Regards,
Marco

>
> Best regards,
>
> Oliver
>

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