drm/panel: p079zca: support Innolux P097PFG panel

A patch from »Innolux P097PFG panel« in state Maintainer-tree for linux-kernel

From: Lin Huang <hl@...> Date: Wed, 14 Mar 2018 17:12:15 +0800

Commit-Message

Support Innolux P097PFG 9.7" 1536x2048 TFT LCD panel, it reuse the Innolux P079ZCA panel driver. Changes in v2: - None Changes in v3: - None Changes in v4: - None Changes in v5: - Document source of init-commands - 4 lanes per DSI interface Signed-off-by: Lin Huang <hl@...> Signed-off-by: Heiko Stuebner <heiko@...>

Patch-Comment

drivers/gpu/drm/panel/panel-innolux-p079zca.c | 200 +++++++++++++++++- 1 file changed, 196 insertions(+), 4 deletions(-)

Statistics

  • 196 lines added
  • 4 lines removed

Changes

---------------- drivers/gpu/drm/panel/panel-innolux-p079zca.c -----------------
index 630b0c2549ef..8d25b87bfbd6 100644
@@ -20,6 +20,15 @@
#include <video/mipi_display.h>
+struct panel_init_cmd {
+ int len;
+ const char *data;
+};
+
+#define _INIT_CMD(...) { \
+ .len = sizeof((char[]){__VA_ARGS__}), \
+ .data = (char[]){__VA_ARGS__} }
+
struct panel_desc {
const struct drm_display_mode *modes;
unsigned int bpc;
@@ -30,6 +39,7 @@ struct panel_desc {
unsigned long flags;
enum mipi_dsi_pixel_format format;
+ const struct panel_init_cmd *init_cmds;
unsigned int lanes;
const char * const *supply_names;
unsigned int num_supplies;
@@ -121,13 +131,43 @@ static int innolux_panel_prepare(struct drm_panel *panel)
if (err < 0)
return err;
- /* T2: 15ms - 1000ms */
- usleep_range(15000, 16000);
+ /* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
+ usleep_range(20000, 21000);
gpiod_set_value_cansleep(innolux->enable_gpio, 1);
- /* T4: 15ms - 1000ms */
- usleep_range(15000, 16000);
+ /* p079zca: t4, p097pfg: t5 */
+ usleep_range(20000, 21000);
+
+ if (innolux->desc->init_cmds) {
+ const struct panel_init_cmd *cmds =
+ innolux->desc->init_cmds;
+ int i;
+
+ for (i = 0; cmds[i].len != 0; i++) {
+ const struct panel_init_cmd *cmd = &cmds[i];
+
+ err = mipi_dsi_generic_write(innolux->link, cmd->data,
+ cmd->len);
+ if (err < 0) {
+ dev_err(panel->dev,
+ "failed to write command %d\n", i);
+ goto poweroff;
+ }
+
+ /*
+ * Included by random guessing, because without this
+ * (or at least, some delay), the panel sometimes
+ * didn't appear to pick up the command sequence.
+ */
+ err = mipi_dsi_dcs_nop(innolux->link);
+ if (err < 0) {
+ dev_err(panel->dev,
+ "failed to send DCS nop: %d\n", err);
+ goto poweroff;
+ }
+ }
+ }
err = mipi_dsi_dcs_exit_sleep_mode(innolux->link);
if (err < 0) {
@@ -213,6 +253,155 @@ static const struct panel_desc innolux_p079zca_panel_desc = {
.power_down_delay = 80, /* T8: 80ms - 1000ms */
};
+static const char * const innolux_p097pfg_supply_names[] = {
+ "avdd",
+ "avee",
+};
+
+static const struct drm_display_mode innolux_p097pfg_mode = {
+ .clock = 229000,
+ .hdisplay = 1536,
+ .hsync_start = 1536 + 100,
+ .hsync_end = 1536 + 100 + 24,
+ .htotal = 1536 + 100 + 24 + 100,
+ .vdisplay = 2048,
+ .vsync_start = 2048 + 100,
+ .vsync_end = 2048 + 100 + 2,
+ .vtotal = 2048 + 100 + 2 + 18,
+ .vrefresh = 60,
+};
+
+/*
+ * Display manufacturer failed to provide init sequencing according to
+ * https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/892065/
+ * so the init sequence stems from a register dump of a working panel.
+ */
+static const struct panel_init_cmd innolux_p097pfg_init_cmds[] = {
+ /* page 0 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x00),
+ _INIT_CMD(0xB1, 0xE8, 0x11),
+ _INIT_CMD(0xB2, 0x25, 0x02),
+ _INIT_CMD(0xB5, 0x08, 0x00),
+ _INIT_CMD(0xBC, 0x0F, 0x00),
+ _INIT_CMD(0xB8, 0x03, 0x06, 0x00, 0x00),
+ _INIT_CMD(0xBD, 0x01, 0x90, 0x14, 0x14),
+ _INIT_CMD(0x6F, 0x01),
+ _INIT_CMD(0xC0, 0x03),
+ _INIT_CMD(0x6F, 0x02),
+ _INIT_CMD(0xC1, 0x0D),
+ _INIT_CMD(0xD9, 0x01, 0x09, 0x70),
+ _INIT_CMD(0xC5, 0x12, 0x21, 0x00),
+ _INIT_CMD(0xBB, 0x93, 0x93),
+
+ /* page 1 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x01),
+ _INIT_CMD(0xB3, 0x3C, 0x3C),
+ _INIT_CMD(0xB4, 0x0F, 0x0F),
+ _INIT_CMD(0xB9, 0x45, 0x45),
+ _INIT_CMD(0xBA, 0x14, 0x14),
+ _INIT_CMD(0xCA, 0x02),
+ _INIT_CMD(0xCE, 0x04),
+ _INIT_CMD(0xC3, 0x9B, 0x9B),
+ _INIT_CMD(0xD8, 0xC0, 0x03),
+ _INIT_CMD(0xBC, 0x82, 0x01),
+ _INIT_CMD(0xBD, 0x9E, 0x01),
+
+ /* page 2 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x02),
+ _INIT_CMD(0xB0, 0x82),
+ _INIT_CMD(0xD1, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x82, 0x00, 0xA5,
+ 0x00, 0xC1, 0x00, 0xEA, 0x01, 0x0D, 0x01, 0x40),
+ _INIT_CMD(0xD2, 0x01, 0x6A, 0x01, 0xA8, 0x01, 0xDC, 0x02, 0x29,
+ 0x02, 0x67, 0x02, 0x68, 0x02, 0xA8, 0x02, 0xF0),
+ _INIT_CMD(0xD3, 0x03, 0x19, 0x03, 0x49, 0x03, 0x67, 0x03, 0x8C,
+ 0x03, 0xA6, 0x03, 0xC7, 0x03, 0xDE, 0x03, 0xEC),
+ _INIT_CMD(0xD4, 0x03, 0xFF, 0x03, 0xFF),
+ _INIT_CMD(0xE0, 0x00, 0x00, 0x00, 0x86, 0x00, 0xC5, 0x00, 0xE5,
+ 0x00, 0xFF, 0x01, 0x26, 0x01, 0x45, 0x01, 0x75),
+ _INIT_CMD(0xE1, 0x01, 0x9C, 0x01, 0xD5, 0x02, 0x05, 0x02, 0x4D,
+ 0x02, 0x86, 0x02, 0x87, 0x02, 0xC3, 0x03, 0x03),
+ _INIT_CMD(0xE2, 0x03, 0x2A, 0x03, 0x56, 0x03, 0x72, 0x03, 0x94,
+ 0x03, 0xAC, 0x03, 0xCB, 0x03, 0xE0, 0x03, 0xED),
+ _INIT_CMD(0xE3, 0x03, 0xFF, 0x03, 0xFF),
+
+ /* page 3 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x03),
+ _INIT_CMD(0xB0, 0x00, 0x00, 0x00, 0x00),
+ _INIT_CMD(0xB1, 0x00, 0x00, 0x00, 0x00),
+ _INIT_CMD(0xB2, 0x00, 0x00, 0x06, 0x04, 0x01, 0x40, 0x85),
+ _INIT_CMD(0xB3, 0x10, 0x07, 0xFC, 0x04, 0x01, 0x40, 0x80),
+ _INIT_CMD(0xB6, 0xF0, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01,
+ 0x40, 0x80),
+ _INIT_CMD(0xBA, 0xC5, 0x07, 0x00, 0x04, 0x11, 0x25, 0x8C),
+ _INIT_CMD(0xBB, 0xC5, 0x07, 0x00, 0x03, 0x11, 0x25, 0x8C),
+ _INIT_CMD(0xC0, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
+ _INIT_CMD(0xC1, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
+ _INIT_CMD(0xC4, 0x00, 0x00),
+ _INIT_CMD(0xEF, 0x41),
+
+ /* page 4 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x04),
+ _INIT_CMD(0xEC, 0x4C),
+
+ /* page 5 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x05),
+ _INIT_CMD(0xB0, 0x13, 0x03, 0x03, 0x01),
+ _INIT_CMD(0xB1, 0x30, 0x00),
+ _INIT_CMD(0xB2, 0x02, 0x02, 0x00),
+ _INIT_CMD(0xB3, 0x82, 0x23, 0x82, 0x9D),
+ _INIT_CMD(0xB4, 0xC5, 0x75, 0x24, 0x57),
+ _INIT_CMD(0xB5, 0x00, 0xD4, 0x72, 0x11, 0x11, 0xAB, 0x0A),
+ _INIT_CMD(0xB6, 0x00, 0x00, 0xD5, 0x72, 0x24, 0x56),
+ _INIT_CMD(0xB7, 0x5C, 0xDC, 0x5C, 0x5C),
+ _INIT_CMD(0xB9, 0x0C, 0x00, 0x00, 0x01, 0x00),
+ _INIT_CMD(0xC0, 0x75, 0x11, 0x11, 0x54, 0x05),
+ _INIT_CMD(0xC6, 0x00, 0x00, 0x00, 0x00),
+ _INIT_CMD(0xD0, 0x00, 0x48, 0x08, 0x00, 0x00),
+ _INIT_CMD(0xD1, 0x00, 0x48, 0x09, 0x00, 0x00),
+
+ /* page 6 */
+ _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x06),
+ _INIT_CMD(0xB0, 0x02, 0x32, 0x32, 0x08, 0x2F),
+ _INIT_CMD(0xB1, 0x2E, 0x15, 0x14, 0x13, 0x12),
+ _INIT_CMD(0xB2, 0x11, 0x10, 0x00, 0x3D, 0x3D),
+ _INIT_CMD(0xB3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
+ _INIT_CMD(0xB4, 0x3D, 0x32),
+ _INIT_CMD(0xB5, 0x03, 0x32, 0x32, 0x09, 0x2F),
+ _INIT_CMD(0xB6, 0x2E, 0x1B, 0x1A, 0x19, 0x18),
+ _INIT_CMD(0xB7, 0x17, 0x16, 0x01, 0x3D, 0x3D),
+ _INIT_CMD(0xB8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
+ _INIT_CMD(0xB9, 0x3D, 0x32),
+ _INIT_CMD(0xC0, 0x01, 0x32, 0x32, 0x09, 0x2F),
+ _INIT_CMD(0xC1, 0x2E, 0x1A, 0x1B, 0x16, 0x17),
+ _INIT_CMD(0xC2, 0x18, 0x19, 0x03, 0x3D, 0x3D),
+ _INIT_CMD(0xC3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
+ _INIT_CMD(0xC4, 0x3D, 0x32),
+ _INIT_CMD(0xC5, 0x00, 0x32, 0x32, 0x08, 0x2F),
+ _INIT_CMD(0xC6, 0x2E, 0x14, 0x15, 0x10, 0x11),
+ _INIT_CMD(0xC7, 0x12, 0x13, 0x02, 0x3D, 0x3D),
+ _INIT_CMD(0xC8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
+ _INIT_CMD(0xC9, 0x3D, 0x32),
+
+ {},
+};
+
+static const struct panel_desc innolux_p097pfg_panel_desc = {
+ .modes = &innolux_p097pfg_mode,
+ .bpc = 8,
+ .size = {
+ .width = 147,
+ .height = 196,
+ },
+ .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_MODE_LPM,
+ .format = MIPI_DSI_FMT_RGB888,
+ .init_cmds = innolux_p097pfg_init_cmds,
+ .lanes = 4,
+ .supply_names = innolux_p097pfg_supply_names,
+ .num_supplies = ARRAY_SIZE(innolux_p097pfg_supply_names),
+ .sleep_mode_delay = 100, /* T15 */
+};
+
static int innolux_panel_get_modes(struct drm_panel *panel)
{
struct drm_display_mode *mode;
@@ -251,6 +440,9 @@ static const struct of_device_id innolux_of_match[] = {
{ .compatible = "innolux,p079zca",
.data = &innolux_p079zca_panel_desc
},
+ { .compatible = "innolux,p097pfg",
+ .data = &innolux_p097pfg_panel_desc
+ },
{ }
};
MODULE_DEVICE_TABLE(of, innolux_of_match);
 
 

Recent Patches

About Us

Sed lacus. Donec lectus. Nullam pretium nibh ut turpis. Nam bibendum. In nulla tortor, elementum vel, tempor at, varius non, purus. Mauris vitae nisl nec metus placerat consectetuer.

Read More...