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Message-ID: <aa76bbac-2f92-4c92-b78a-440a48ebfd4f@quicinc.com>
Date: Thu, 15 Feb 2024 08:30:38 -0800
From: Jessica Zhang <quic_jesszhan@...cinc.com>
To: Heiko Stuebner <heiko@...ech.de>, <neil.armstrong@...aro.org>
CC: <sam@...nborg.org>, <maarten.lankhorst@...ux.intel.com>,
<mripard@...nel.org>, <tzimmermann@...e.de>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <quentin.schulz@...obroma-systems.com>,
Heiko
Stuebner <heiko.stuebner@...rry.de>
Subject: Re: [PATCH 3/3] drm/panel: ltk500hd1829: add panel type for
ltk101b4029w
On 2/15/2024 1:05 AM, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@...rry.de>
>
> The ltk101b4029w ist a 10.1 inch DSI panel and shares the same supplies
> and startup timings with the existing ltk500hd1829.
>
> So simply add it as a variant with its own init sequence and display-mode.
>
> Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
Hi Heiko,
Acked-by: Jessica Zhang <quic_jesszhan@...cinc.com>
Thanks,
Jessica Zhang
> ---
> .../drm/panel/panel-leadtek-ltk500hd1829.c | 196 ++++++++++++++++++
> 1 file changed, 196 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c b/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
> index 42f4e2584af18..7bc538b7c6b7c 100644
> --- a/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
> +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
> @@ -43,6 +43,198 @@ struct ltk500hd1829 {
> bool prepared;
> };
>
> +static const struct ltk500hd1829_cmd ltk101b4029w_init[] = {
> + /* Page0 */
> + { 0xE0, 0x00 },
> + /* PASSWORD */
> + { 0xE1, 0x93 },
> + { 0xE2, 0x65 },
> + { 0xE3, 0xF8 },
> + { 0x80, 0x03 }, /* 0X03:4-LANE; 0X02:3-LANE; 0X01:2-LANE */
> + /* Page1 */
> + { 0xE0, 0x01 },
> + /* Set VCOM */
> + { 0x00, 0x00 },
> + { 0x01, 0x6F },
> + /* Set Gamma Power, VGMP,VGMN,VGSP,VGSN */
> + { 0x17, 0x00 },
> + { 0x18, 0xAF }, /* 4.3V */
> + { 0x19, 0x01 }, /* 0.3V */
> + { 0x1A, 0x00 },
> + { 0x1B, 0xAF }, /* 4.3V */
> + { 0x1C, 0x01 }, /* 0.3V */
> + /* Set Gate Power */
> + { 0x1F, 0x3E }, /* VGH_R = 15V */
> + { 0x20, 0x28 }, /* VGL_R = -12V */
> + { 0x21, 0x28 }, /* VGL_R2 = -12V */
> + { 0x22, 0x7E },
> + /* SETPANEL */
> + { 0x35, 0x26 },
> + { 0x37, 0x09 },
> + /* SET RGBCYC */
> + { 0x38, 0x04 },
> + { 0x39, 0x00 },
> + { 0x3A, 0x01 },
> + { 0x3C, 0x7C },
> + { 0x3D, 0xFF },
> + { 0x3E, 0xFF },
> + { 0x3F, 0x7F },
> + /* Set TCON */
> + { 0x40, 0x06 }, /* RSO = 800 RGB */
> + { 0x41, 0xA0 }, /* LN = 640->1280 line */
> + { 0x42, 0x81 },
> + { 0x43, 0x08 }, /* VFP = 8 */
> + { 0x44, 0x0B }, /* VBP = 12 */
> + { 0x45, 0x28 }, /* HBP = 40 */
> + /* power voltage */
> + { 0x55, 0x0F }, /* DCDCM = 0001, JD PWR_IC */
> + { 0x57, 0x69 },
> + { 0x59, 0x0A }, /* VCL = -2.9V */
> + { 0x5A, 0x28 }, /* VGH = 15V */
> + { 0x5B, 0x14 }, /* VGL = -11V */
> + /* Gamma */
> + { 0x5D, 0x7C },
> + { 0x5E, 0x65 },
> + { 0x5F, 0x55 },
> + { 0x60, 0x47 },
> + { 0x61, 0x43 },
> + { 0x62, 0x32 },
> + { 0x63, 0x34 },
> + { 0x64, 0x1C },
> + { 0x65, 0x33 },
> + { 0x66, 0x31 },
> + { 0x67, 0x30 },
> + { 0x68, 0x4E },
> + { 0x69, 0x3C },
> + { 0x6A, 0x44 },
> + { 0x6B, 0x35 },
> + { 0x6C, 0x31 },
> + { 0x6D, 0x23 },
> + { 0x6E, 0x11 },
> + { 0x6F, 0x00 },
> + { 0x70, 0x7C },
> + { 0x71, 0x65 },
> + { 0x72, 0x55 },
> + { 0x73, 0x47 },
> + { 0x74, 0x43 },
> + { 0x75, 0x32 },
> + { 0x76, 0x34 },
> + { 0x77, 0x1C },
> + { 0x78, 0x33 },
> + { 0x79, 0x31 },
> + { 0x7A, 0x30 },
> + { 0x7B, 0x4E },
> + { 0x7C, 0x3C },
> + { 0x7D, 0x44 },
> + { 0x7E, 0x35 },
> + { 0x7F, 0x31 },
> + { 0x80, 0x23 },
> + { 0x81, 0x11 },
> + { 0x82, 0x00 },
> + /* Page2, for GIP */
> + { 0xE0, 0x02 },
> + /* GIP_L Pin mapping */
> + { 0x00, 0x1E },
> + { 0x01, 0x1E },
> + { 0x02, 0x41 },
> + { 0x03, 0x41 },
> + { 0x04, 0x43 },
> + { 0x05, 0x43 },
> + { 0x06, 0x1F },
> + { 0x07, 0x1F },
> + { 0x08, 0x35 },
> + { 0x09, 0x1F },
> + { 0x0A, 0x15 },
> + { 0x0B, 0x15 },
> + { 0x0C, 0x1F },
> + { 0x0D, 0x47 },
> + { 0x0E, 0x47 },
> + { 0x0F, 0x45 },
> + { 0x10, 0x45 },
> + { 0x11, 0x4B },
> + { 0x12, 0x4B },
> + { 0x13, 0x49 },
> + { 0x14, 0x49 },
> + { 0x15, 0x1F },
> + /* GIP_R Pin mapping */
> + { 0x16, 0x1E },
> + { 0x17, 0x1E },
> + { 0x18, 0x40 },
> + { 0x19, 0x40 },
> + { 0x1A, 0x42 },
> + { 0x1B, 0x42 },
> + { 0x1C, 0x1F },
> + { 0x1D, 0x1F },
> + { 0x1E, 0x35 },
> + { 0x1F, 0x1F },
> + { 0x20, 0x15 },
> + { 0x21, 0x15 },
> + { 0x22, 0x1f },
> + { 0x23, 0x46 },
> + { 0x24, 0x46 },
> + { 0x25, 0x44 },
> + { 0x26, 0x44 },
> + { 0x27, 0x4A },
> + { 0x28, 0x4A },
> + { 0x29, 0x48 },
> + { 0x2A, 0x48 },
> + { 0x2B, 0x1F },
> + /* GIP Timing */
> + { 0x58, 0x40 },
> + { 0x5B, 0x30 },
> + { 0x5C, 0x03 },
> + { 0x5D, 0x30 },
> + { 0x5E, 0x01 },
> + { 0x5F, 0x02 },
> + { 0x63, 0x14 },
> + { 0x64, 0x6A },
> + { 0x67, 0x73 },
> + { 0x68, 0x05 },
> + { 0x69, 0x14 },
> + { 0x6A, 0x6A },
> + { 0x6B, 0x08 },
> + { 0x6C, 0x00 },
> + { 0x6D, 0x00 },
> + { 0x6E, 0x00 },
> + { 0x6F, 0x88 },
> + { 0x77, 0xDD },
> + { 0x79, 0x0E },
> + { 0x7A, 0x03 },
> + { 0x7D, 0x14 },
> + { 0x7E, 0x6A },
> + /* Page4 */
> + { 0xE0, 0x04 },
> + { 0x09, 0x11 },
> + { 0x0E, 0x48 },
> + { 0x2B, 0x2B },
> + { 0x2D, 0x03 },
> + { 0x2E, 0x44 },
> + /* Page0 */
> + { 0xE0, 0x00 },
> + { 0xE6, 0x02 },
> + { 0xE7, 0x0C },
> +};
> +
> +static const struct drm_display_mode ltk101b4029w_mode = {
> + .hdisplay = 800,
> + .hsync_start = 800 + 18,
> + .hsync_end = 800 + 18 + 18,
> + .htotal = 800 + 18 + 18 + 18,
> + .vdisplay = 1280,
> + .vsync_start = 1280 + 24,
> + .vsync_end = 1280 + 24 + 4,
> + .vtotal = 1280 + 24 + 4 + 8,
> + .clock = 67330,
> + .width_mm = 136,
> + .height_mm = 218,
> +};
> +
> +static const struct ltk500hd1829_desc ltk101b4029w_data = {
> + .mode = <k101b4029w_mode,
> + .init = ltk101b4029w_init,
> + .num_init = ARRAY_SIZE(ltk101b4029w_init),
> +};
> +
> /*
> * There is no description in the Reference Manual about these commands.
> * We received them from the vendor, so just use them as is.
> @@ -510,6 +702,10 @@ static void ltk500hd1829_remove(struct mipi_dsi_device *dsi)
> }
>
> static const struct of_device_id ltk500hd1829_of_match[] = {
> + {
> + .compatible = "leadtek,ltk101b4029w",
> + .data = <k101b4029w_data,
> + },
> {
> .compatible = "leadtek,ltk500hd1829",
> .data = <k500hd1829_data,
> --
> 2.39.2
>
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