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Message-ID: <b7103a08-f307-4748-895e-61083e3810f2@linaro.org>
Date: Tue, 6 Jan 2026 09:17:50 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Vladimir Yakovlev <vovchkir@...il.com>,
Cong Yang <yangcong5@...qin.corp-partner.google.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Jessica Zhang <jesszhan0024@...il.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] drm/panel: himax-hx83102: add panel starry
xr109ia2t
On 12/8/25 17:09, Vladimir Yakovlev wrote:
> The STARRY XR109AI2T is a 10.95" 1200x2000 (WUXGA+) TFT LCD panel with
> himax-hx83102 controller. Hence, we add a new compatible with panel
> specific config.
>
> Signed-off-by: Vladimir Yakovlev <vovchkir@...il.com>
> ---
> drivers/gpu/drm/panel/panel-himax-hx83102.c | 193 ++++++++++++++++++++
> 1 file changed, 193 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-himax-hx83102.c b/drivers/gpu/drm/panel/panel-himax-hx83102.c
> index 4c432d207634..602f1adfc8ee 100644
> --- a/drivers/gpu/drm/panel/panel-himax-hx83102.c
> +++ b/drivers/gpu/drm/panel/panel-himax-hx83102.c
> @@ -23,6 +23,7 @@
> /* Manufacturer specific DSI commands */
> #define HX83102_SETPOWER 0xb1
> #define HX83102_SETDISP 0xb2
> +#define HX83102_SETRGBIF 0xb3
> #define HX83102_SETCYC 0xb4
> #define HX83102_UNKNOWN_B6 0xb6
> #define HX83102_UNKNOWN_B8 0xb8
> @@ -33,6 +34,7 @@
> #define HX83102_UNKNOWN_BE 0xbe
> #define HX83102_SETPTBA 0xbf
> #define HX83102_SETSTBA 0xc0
> +#define HX83102_SETDGCLUT 0xc1
> #define HX83102_SETTCON 0xc7
> #define HX83102_SETRAMDMY 0xc8
> #define HX83102_SETPWM 0xc9
> @@ -701,6 +703,172 @@ static int starry_2082109qfh040022_50e_init(struct hx83102 *ctx)
> return dsi_ctx.accum_err;
> }
>
> +static int starry_himax83102_xr109_init(struct hx83102 *ctx)
> +{
> + struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
> +
> + msleep(60);
> +
> + hx83102_enable_extended_cmds(&dsi_ctx, true);
> +
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPOWER, 0x2c, 0xb1,
> + 0xb1, 0x2d, 0xed, 0x32, 0xd7, 0x43, 0x36,
> + 0x36, 0x36, 0x36);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xd9);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPOWER, 0x78, 0x33);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETDISP, 0x00, 0x47,
> + 0xb0, 0xd0, 0x00, 0x12, 0x72, 0x3c, 0x9b,
> + 0x22, 0x02, 0x02, 0x00, 0x88, 0xf0);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETRGBIF, 0x11);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETCYC, 0x6a, 0x6a,
> + 0x6a, 0x6a, 0x6a, 0x6a, 0x6a, 0x4d, 0x6a,
> + 0x4d, 0x01, 0x95);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_UNKNOWN_B8, 0x40);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETVDC, 0x1b, 0x04);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xcd);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETMIPI, 0x84);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_UNKNOWN_BE, 0x20);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPTBA, 0xfc, 0xc4);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSTBA, 0x32, 0x32,
> + 0x22, 0x11, 0x33, 0xa0, 0x61, 0x08, 0xf5,
> + 0x03);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETDGCLUT, 0x01);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xcc);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETTCON, 0x80);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xc6);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETRAMDMY, 0x97);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPWM, 0x00, 0x1e,
> + 0x30, 0xd4, 0x01);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETCLOCK, 0x08, 0x13,
> + 0x07, 0x00, 0x0e, 0xa1);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPANEL, 0x02, 0x03,
> + 0x44);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xc4);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETCASCADE, 0x03);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPCTRL, 0x37, 0x06,
> + 0x00, 0x02, 0x04, 0x0c, 0xff);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_UNKNOWN_D2, 0x1f, 0x11,
> + 0x1f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP0, 0x06, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x6b, 0x03, 0xaa, 0xab, 0x0e, 0x0e, 0x03,
> + 0x03, 0x98, 0x10, 0x08, 0x00, 0x08, 0x32,
> + 0x17, 0xde, 0x07, 0xde, 0x32, 0x17, 0xe2,
> + 0x07, 0xe2, 0x00, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP1, 0x18, 0x18,
> + 0x18, 0x18, 0x18, 0x18, 0x48, 0x48, 0x18,
> + 0x18, 0x18, 0x18, 0x22, 0x23, 0x1f, 0x1f,
> + 0x1e, 0x1e, 0x24, 0x25, 0x26, 0x27, 0x28,
> + 0x29, 0x2a, 0x2b, 0x00, 0x01, 0x02, 0x03,
> + 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
> + 0x0b, 0x20, 0x21, 0x18, 0x18, 0x18, 0x18);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP3, 0x00, 0xaa,
> + 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0xaa, 0xaa,
> + 0xaa, 0xaa, 0x00, 0x00, 0xaa, 0xea, 0xaa,
> + 0xaa, 0x00, 0x00, 0xaa, 0xea, 0xaa, 0xaa,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGMA, 0x00, 0x02,
> + 0x08, 0x0d, 0x12, 0x18, 0x2c, 0x32, 0x38,
> + 0x34, 0x4f, 0x56, 0x5e, 0x70, 0x72, 0x7e,
> + 0x89, 0x9e, 0x9f, 0x50, 0x59, 0x62, 0x68,
> + 0x00, 0x02, 0x08, 0x0d, 0x12, 0x18, 0x2c,
> + 0x32, 0x38, 0x34, 0x4f, 0x56, 0x5e, 0x70,
> + 0x72, 0x7e, 0x89, 0x9e, 0x9f, 0x50, 0x59,
> + 0x65, 0x74);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETTP1, 0x08, 0x10,
> + 0x10, 0x1b, 0x22, 0x95, 0x01, 0x5c, 0x97,
> + 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x12,
> + 0x05, 0x02, 0x02, 0x10, 0x33, 0x02, 0x04,
> + 0x18, 0x01);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETBANK, 0x01);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETPOWER, 0x01, 0xbf,
> + 0x11);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETDGCLUT, 0x00, 0x04,
> + 0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c, 0x20,
> + 0x24, 0x28, 0x2d, 0x30, 0x35, 0x39, 0x3d,
> + 0x41, 0x46, 0x4a, 0x4e, 0x56, 0x5d, 0x65,
> + 0x6e, 0x76, 0x7e, 0x86, 0x8d, 0x96, 0x9e,
> + 0xa5, 0xad, 0xb6, 0xbe, 0xc6, 0xcf, 0xd6,
> + 0xde, 0xe6, 0xed, 0xf5, 0xf9, 0xfa, 0xfc,
> + 0xfe, 0xff, 0x19, 0xa6, 0xbc, 0xdf, 0xc0,
> + 0x7d, 0x97, 0x2e, 0x24, 0xb6, 0x4d, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETCLOCK, 0x86);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_UNKNOWN_D2, 0x3c);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xc5);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP0, 0x00, 0x00,
> + 0x00, 0x80, 0x80, 0x0c, 0xa1);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP3, 0x00, 0xff,
> + 0xff, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff,
> + 0xff, 0xff);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETTP1, 0x02, 0x00,
> + 0x3e, 0x01, 0x83, 0x0f, 0x7e, 0x10, 0xa0,
> + 0x00, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETBANK, 0x02);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETDGCLUT, 0x00, 0x04,
> + 0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c, 0x20,
> + 0x24, 0x28, 0x2c, 0x30, 0x34, 0x39, 0x3d,
> + 0x41, 0x45, 0x49, 0x4d, 0x55, 0x5c, 0x64,
> + 0x6c, 0x75, 0x7c, 0x84, 0x8c, 0x94, 0x9c,
> + 0xa4, 0xab, 0xb4, 0xbc, 0xc4, 0xcd, 0xd4,
> + 0xdd, 0xe5, 0xec, 0xf4, 0xf8, 0xfa, 0xfc,
> + 0xfe, 0xff, 0x19, 0x95, 0x6b, 0x70, 0x15,
> + 0x7b, 0x3d, 0xa6, 0x28, 0xc2, 0x94, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xcc);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP0, 0x02, 0x1D,
> + 0xe0, 0x11, 0x70);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP3, 0xab, 0xff,
> + 0xff, 0xff, 0xff, 0xa0, 0xab, 0xff, 0xff,
> + 0xff, 0xff, 0xa0);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETTP1, 0xfb, 0x01,
> + 0xfb, 0x01, 0xfb, 0x01, 0x00, 0x00, 0x00,
> + 0x26, 0x00, 0x26, 0x81, 0x02, 0x40, 0x00,
> + 0x20, 0x94, 0x05, 0x04, 0x03, 0x02, 0x01,
> + 0x00, 0x00, 0x00, 0x01, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETBANK, 0x03);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xc6);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETCYC, 0x03, 0xff,
> + 0xf0);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETDGCLUT, 0x00, 0x04,
> + 0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c, 0x1f,
> + 0x24, 0x28, 0x2b, 0x2f, 0x33, 0x38, 0x3c,
> + 0x3f, 0x43, 0x47, 0x4b, 0x53, 0x5b, 0x62,
> + 0x6a, 0x73, 0x7b, 0x82, 0x8a, 0x92, 0x9a,
> + 0xa2, 0xa9, 0xb2, 0xba, 0xc3, 0xcb, 0xd3,
> + 0xdb, 0xe4, 0xeb, 0xf3, 0xf8, 0xfa, 0xfc,
> + 0xfe, 0xff, 0x11, 0x90, 0xc3, 0xa0, 0xff,
> + 0xdb, 0x0d, 0x7b, 0x72, 0xa2, 0xc0, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETGIP3, 0xaa, 0xbb,
> + 0xea, 0xaa, 0xaa, 0xa0, 0xaa, 0xbb, 0xea,
> + 0xaa, 0xaa, 0xa0, 0xab, 0xff, 0xff, 0xff,
> + 0xff, 0xa0, 0xab, 0xff, 0xff, 0xff, 0xff,
> + 0xa0, 0xaa, 0xba, 0xaa, 0xaa, 0xaa, 0xa0,
> + 0xaa, 0xba, 0xaa, 0xaa, 0xaa, 0xa0);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETBANK, 0x00);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xc4);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETMIPI, 0x96);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETBANK, 0x01);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0xc5);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETMIPI, 0x4f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETSPCCMD, 0x3f);
> + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, HX83102_SETBANK, 0x00);
> +
> + hx83102_enable_extended_cmds(&dsi_ctx, false);
> +
> + mipi_dsi_msleep(&dsi_ctx, 60);
> +
> + return dsi_ctx.accum_err;
> +}
> +
> static const struct drm_display_mode starry_mode = {
> .clock = 162680,
> .hdisplay = 1200,
> @@ -833,6 +1001,28 @@ static const struct hx83102_panel_desc starry_2082109qfh040022_50e_desc = {
> .init = starry_2082109qfh040022_50e_init,
> };
>
> +static const struct drm_display_mode starry_himax83102_xr109_default_mode = {
> + .clock = 168500,
> + .hdisplay = 1200,
> + .hsync_start = 1200 + 55,
> + .hsync_end = 1200 + 55 + 20,
> + .htotal = 1200 + 55 + 20 + 40,
> + .vdisplay = 2000,
> + .vsync_start = 2000 + 116,
> + .vsync_end = 2000 + 116 + 8,
> + .vtotal = 2000 + 116 + 8 + 12,
> + .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
> +};
> +
> +static const struct hx83102_panel_desc starry_himax83102_xr109_desc = {
> + .modes = &starry_himax83102_xr109_default_mode,
> + .size = {
> + .width_mm = 143,
> + .height_mm = 239,
> + },
> + .init = starry_himax83102_xr109_init,
> +};
> +
> static int hx83102_enable(struct drm_panel *panel)
> {
> msleep(130);
> @@ -1069,6 +1259,9 @@ static const struct of_device_id hx83102_of_match[] = {
> { .compatible = "starry,himax83102-j02",
> .data = &starry_desc
> },
> + { .compatible = "starry,himax83102-xr109",
> + .data = &starry_himax83102_xr109_desc
> + },
> { /* sentinel */ }
> };
> MODULE_DEVICE_TABLE(of, hx83102_of_match);
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
Thanks,
Neil
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