From: Lin Huang hl@rock-chips.com
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@rock-chips.com Signed-off-by: Heiko Stuebner heiko@sntech.de --- drivers/gpu/drm/panel/panel-innolux-p079zca.c | 200 +++++++++++++++++- 1 file changed, 196 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c index 630b0c2549ef..8d25b87bfbd6 100644 --- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c +++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c @@ -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/+... + * 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);