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Message-ID: <20230911090206.3121440-2-contact@jookia.org>
Date: Mon, 11 Sep 2023 19:01:59 +1000
From: John Watts <contact@...kia.org>
To: dri-devel@...ts.freedesktop.org
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
Sam Ravnborg <sam@...nborg.org>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Heiko Stuebner <heiko@...ech.de>,
Shawn Guo <shawnguo@...nel.org>,
Chris Morgan <macromorgan@...mail.com>,
Jagan Teki <jagan@...eble.ai>, John Watts <contact@...kia.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH 1/8] drm/panel: nv3052c: Document known register names
Many of these registers have a known name in the public datasheet.
Document them as comments for reference.
Signed-off-by: John Watts <contact@...kia.org>
---
.../gpu/drm/panel/panel-newvision-nv3052c.c | 261 +++++++++---------
1 file changed, 132 insertions(+), 129 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
index 71e57de6d8b2..589431523ce7 100644
--- a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
@@ -42,9 +42,9 @@ struct nv3052c_reg {
};
static const struct nv3052c_reg nv3052c_panel_regs[] = {
- { 0xff, 0x30 },
- { 0xff, 0x52 },
- { 0xff, 0x01 },
+ // EXTC Command set enable, select page 1
+ { 0xff, 0x30 }, { 0xff, 0x52 }, { 0xff, 0x01 },
+ // Mostly unknown registers
{ 0xe3, 0x00 },
{ 0x40, 0x00 },
{ 0x03, 0x40 },
@@ -62,15 +62,15 @@ static const struct nv3052c_reg nv3052c_panel_regs[] = {
{ 0x25, 0x06 },
{ 0x26, 0x14 },
{ 0x27, 0x14 },
- { 0x38, 0xcc },
- { 0x39, 0xd7 },
- { 0x3a, 0x4a },
+ { 0x38, 0xcc }, // VCOM_ADJ1
+ { 0x39, 0xd7 }, // VCOM_ADJ2
+ { 0x3a, 0x4a }, // VCOM_ADJ3
{ 0x28, 0x40 },
{ 0x29, 0x01 },
{ 0x2a, 0xdf },
{ 0x49, 0x3c },
- { 0x91, 0x77 },
- { 0x92, 0x77 },
+ { 0x91, 0x77 }, // EXTPW_CTRL2
+ { 0x92, 0x77 }, // EXTPW_CTRL3
{ 0xa0, 0x55 },
{ 0xa1, 0x50 },
{ 0xa4, 0x9c },
@@ -94,123 +94,126 @@ static const struct nv3052c_reg nv3052c_panel_regs[] = {
{ 0xb8, 0x26 },
{ 0xf0, 0x00 },
{ 0xf6, 0xc0 },
- { 0xff, 0x30 },
- { 0xff, 0x52 },
- { 0xff, 0x02 },
- { 0xb0, 0x0b },
- { 0xb1, 0x16 },
- { 0xb2, 0x17 },
- { 0xb3, 0x2c },
- { 0xb4, 0x32 },
- { 0xb5, 0x3b },
- { 0xb6, 0x29 },
- { 0xb7, 0x40 },
- { 0xb8, 0x0d },
- { 0xb9, 0x05 },
- { 0xba, 0x12 },
- { 0xbb, 0x10 },
- { 0xbc, 0x12 },
- { 0xbd, 0x15 },
- { 0xbe, 0x19 },
- { 0xbf, 0x0e },
- { 0xc0, 0x16 },
- { 0xc1, 0x0a },
- { 0xd0, 0x0c },
- { 0xd1, 0x17 },
- { 0xd2, 0x14 },
- { 0xd3, 0x2e },
- { 0xd4, 0x32 },
- { 0xd5, 0x3c },
- { 0xd6, 0x22 },
- { 0xd7, 0x3d },
- { 0xd8, 0x0d },
- { 0xd9, 0x07 },
- { 0xda, 0x13 },
- { 0xdb, 0x13 },
- { 0xdc, 0x11 },
- { 0xdd, 0x15 },
- { 0xde, 0x19 },
- { 0xdf, 0x10 },
- { 0xe0, 0x17 },
- { 0xe1, 0x0a },
- { 0xff, 0x30 },
- { 0xff, 0x52 },
- { 0xff, 0x03 },
- { 0x00, 0x2a },
- { 0x01, 0x2a },
- { 0x02, 0x2a },
- { 0x03, 0x2a },
- { 0x04, 0x61 },
- { 0x05, 0x80 },
- { 0x06, 0xc7 },
- { 0x07, 0x01 },
- { 0x08, 0x03 },
- { 0x09, 0x04 },
- { 0x70, 0x22 },
- { 0x71, 0x80 },
- { 0x30, 0x2a },
- { 0x31, 0x2a },
- { 0x32, 0x2a },
- { 0x33, 0x2a },
- { 0x34, 0x61 },
- { 0x35, 0xc5 },
- { 0x36, 0x80 },
- { 0x37, 0x23 },
- { 0x40, 0x03 },
- { 0x41, 0x04 },
- { 0x42, 0x05 },
- { 0x43, 0x06 },
- { 0x44, 0x11 },
- { 0x45, 0xe8 },
- { 0x46, 0xe9 },
- { 0x47, 0x11 },
- { 0x48, 0xea },
- { 0x49, 0xeb },
- { 0x50, 0x07 },
- { 0x51, 0x08 },
- { 0x52, 0x09 },
- { 0x53, 0x0a },
- { 0x54, 0x11 },
- { 0x55, 0xec },
- { 0x56, 0xed },
- { 0x57, 0x11 },
- { 0x58, 0xef },
- { 0x59, 0xf0 },
- { 0xb1, 0x01 },
- { 0xb4, 0x15 },
- { 0xb5, 0x16 },
- { 0xb6, 0x09 },
- { 0xb7, 0x0f },
- { 0xb8, 0x0d },
- { 0xb9, 0x0b },
- { 0xba, 0x00 },
- { 0xc7, 0x02 },
- { 0xca, 0x17 },
- { 0xcb, 0x18 },
- { 0xcc, 0x0a },
- { 0xcd, 0x10 },
- { 0xce, 0x0e },
- { 0xcf, 0x0c },
- { 0xd0, 0x00 },
- { 0x81, 0x00 },
- { 0x84, 0x15 },
- { 0x85, 0x16 },
- { 0x86, 0x10 },
- { 0x87, 0x0a },
- { 0x88, 0x0c },
- { 0x89, 0x0e },
- { 0x8a, 0x02 },
- { 0x97, 0x00 },
- { 0x9a, 0x17 },
- { 0x9b, 0x18 },
- { 0x9c, 0x0f },
- { 0x9d, 0x09 },
- { 0x9e, 0x0b },
- { 0x9f, 0x0d },
- { 0xa0, 0x01 },
- { 0xff, 0x30 },
- { 0xff, 0x52 },
- { 0xff, 0x02 },
+ // EXTC Command set enable, select page 2
+ { 0xff, 0x30 }, { 0xff, 0x52 }, { 0xff, 0x02 },
+ // Set gray scale voltage to adjust gamma
+ { 0xb0, 0x0b }, // PGAMVR0
+ { 0xb1, 0x16 }, // PGAMVR1
+ { 0xb2, 0x17 }, // PGAMVR2
+ { 0xb3, 0x2c }, // PGAMVR3
+ { 0xb4, 0x32 }, // PGAMVR4
+ { 0xb5, 0x3b }, // PGAMVR5
+ { 0xb6, 0x29 }, // PGAMPR0
+ { 0xb7, 0x40 }, // PGAMPR1
+ { 0xb8, 0x0d }, // PGAMPK0
+ { 0xb9, 0x05 }, // PGAMPK1
+ { 0xba, 0x12 }, // PGAMPK2
+ { 0xbb, 0x10 }, // PGAMPK3
+ { 0xbc, 0x12 }, // PGAMPK4
+ { 0xbd, 0x15 }, // PGAMPK5
+ { 0xbe, 0x19 }, // PGAMPK6
+ { 0xbf, 0x0e }, // PGAMPK7
+ { 0xc0, 0x16 }, // PGAMPK8
+ { 0xc1, 0x0a }, // PGAMPK9
+ // Set gray scale voltage to adjust gamma
+ { 0xd0, 0x0c }, // NGAMVR0
+ { 0xd1, 0x17 }, // NGAMVR0
+ { 0xd2, 0x14 }, // NGAMVR1
+ { 0xd3, 0x2e }, // NGAMVR2
+ { 0xd4, 0x32 }, // NGAMVR3
+ { 0xd5, 0x3c }, // NGAMVR4
+ { 0xd6, 0x22 }, // NGAMPR0
+ { 0xd7, 0x3d }, // NGAMPR1
+ { 0xd8, 0x0d }, // NGAMPK0
+ { 0xd9, 0x07 }, // NGAMPK1
+ { 0xda, 0x13 }, // NGAMPK2
+ { 0xdb, 0x13 }, // NGAMPK3
+ { 0xdc, 0x11 }, // NGAMPK4
+ { 0xdd, 0x15 }, // NGAMPK5
+ { 0xde, 0x19 }, // NGAMPK6
+ { 0xdf, 0x10 }, // NGAMPK7
+ { 0xe0, 0x17 }, // NGAMPK8
+ { 0xe1, 0x0a }, // NGAMPK9
+ // EXTC Command set enable, select page 3
+ { 0xff, 0x30 }, { 0xff, 0x52 }, { 0xff, 0x03 },
+ // Set various timing settings
+ { 0x00, 0x2a }, // GIP_VST_1
+ { 0x01, 0x2a }, // GIP_VST_2
+ { 0x02, 0x2a }, // GIP_VST_3
+ { 0x03, 0x2a }, // GIP_VST_4
+ { 0x04, 0x61 }, // GIP_VST_5
+ { 0x05, 0x80 }, // GIP_VST_6
+ { 0x06, 0xc7 }, // GIP_VST_7
+ { 0x07, 0x01 }, // GIP_VST_8
+ { 0x08, 0x03 }, // GIP_VST_9
+ { 0x09, 0x04 }, // GIP_VST_10
+ { 0x70, 0x22 }, // GIP_ECLK1
+ { 0x71, 0x80 }, // GIP_ECLK2
+ { 0x30, 0x2a }, // GIP_CLK_1
+ { 0x31, 0x2a }, // GIP_CLK_2
+ { 0x32, 0x2a }, // GIP_CLK_3
+ { 0x33, 0x2a }, // GIP_CLK_4
+ { 0x34, 0x61 }, // GIP_CLK_5
+ { 0x35, 0xc5 }, // GIP_CLK_6
+ { 0x36, 0x80 }, // GIP_CLK_7
+ { 0x37, 0x23 }, // GIP_CLK_8
+ { 0x40, 0x03 }, // GIP_CLKA_1
+ { 0x41, 0x04 }, // GIP_CLKA_2
+ { 0x42, 0x05 }, // GIP_CLKA_3
+ { 0x43, 0x06 }, // GIP_CLKA_4
+ { 0x44, 0x11 }, // GIP_CLKA_5
+ { 0x45, 0xe8 }, // GIP_CLKA_6
+ { 0x46, 0xe9 }, // GIP_CLKA_7
+ { 0x47, 0x11 }, // GIP_CLKA_8
+ { 0x48, 0xea }, // GIP_CLKA_9
+ { 0x49, 0xeb }, // GIP_CLKA_10
+ { 0x50, 0x07 }, // GIP_CLKB_1
+ { 0x51, 0x08 }, // GIP_CLKB_2
+ { 0x52, 0x09 }, // GIP_CLKB_3
+ { 0x53, 0x0a }, // GIP_CLKB_4
+ { 0x54, 0x11 }, // GIP_CLKB_5
+ { 0x55, 0xec }, // GIP_CLKB_6
+ { 0x56, 0xed }, // GIP_CLKB_7
+ { 0x57, 0x11 }, // GIP_CLKB_8
+ { 0x58, 0xef }, // GIP_CLKB_9
+ { 0x59, 0xf0 }, // GIP_CLKB_10
+ // Map internal GOA signals to GOA output pad
+ { 0xb1, 0x01 }, // PANELD2U2
+ { 0xb4, 0x15 }, // PANELD2U5
+ { 0xb5, 0x16 }, // PANELD2U6
+ { 0xb6, 0x09 }, // PANELD2U7
+ { 0xb7, 0x0f }, // PANELD2U8
+ { 0xb8, 0x0d }, // PANELD2U9
+ { 0xb9, 0x0b }, // PANELD2U10
+ { 0xba, 0x00 }, // PANELD2U11
+ { 0xc7, 0x02 }, // PANELD2U24
+ { 0xca, 0x17 }, // PANELD2U27
+ { 0xcb, 0x18 }, // PANELD2U28
+ { 0xcc, 0x0a }, // PANELD2U29
+ { 0xcd, 0x10 }, // PANELD2U30
+ { 0xce, 0x0e }, // PANELD2U31
+ { 0xcf, 0x0c }, // PANELD2U32
+ { 0xd0, 0x00 }, // PANELD2U33
+ // Map internal GOA signals to GOA output pad
+ { 0x81, 0x00 }, // PANELU2D2
+ { 0x84, 0x15 }, // PANELU2D5
+ { 0x85, 0x16 }, // PANELU2D6
+ { 0x86, 0x10 }, // PANELU2D7
+ { 0x87, 0x0a }, // PANELU2D8
+ { 0x88, 0x0c }, // PANELU2D9
+ { 0x89, 0x0e }, // PANELU2D10
+ { 0x8a, 0x02 }, // PANELU2D11
+ { 0x97, 0x00 }, // PANELU2D24
+ { 0x9a, 0x17 }, // PANELU2D27
+ { 0x9b, 0x18 }, // PANELU2D28
+ { 0x9c, 0x0f }, // PANELU2D29
+ { 0x9d, 0x09 }, // PANELU2D30
+ { 0x9e, 0x0b }, // PANELU2D31
+ { 0x9f, 0x0d }, // PANELU2D32
+ { 0xa0, 0x01 }, // PANELU2D33
+ // EXTC Command set enable, select page 2
+ { 0xff, 0x30 }, { 0xff, 0x52 }, { 0xff, 0x02 },
+ // Unknown registers
{ 0x01, 0x01 },
{ 0x02, 0xda },
{ 0x03, 0xba },
@@ -227,10 +230,10 @@ static const struct nv3052c_reg nv3052c_panel_regs[] = {
{ 0x0e, 0x48 },
{ 0x0f, 0x38 },
{ 0x10, 0x2b },
- { 0xff, 0x30 },
- { 0xff, 0x52 },
- { 0xff, 0x00 },
- { 0x36, 0x0a },
+ // EXTC Command set enable, select page 0
+ { 0xff, 0x30 }, { 0xff, 0x52 }, { 0xff, 0x00 },
+ // Display Access Control
+ { 0x36, 0x0a }, // bgr = 1, ss = 1, gs = 0
};
static inline struct nv3052c *to_nv3052c(struct drm_panel *panel)
--
2.42.0
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