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Message-Id: <20240512-dsi-panels-upd-api-v2-7-e31ca14d102e@linaro.org>
Date: Sun, 12 May 2024 02:00:24 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Douglas Anderson <dianders@...omium.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Neil Armstrong <neil.armstrong@...aro.org>,
Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>,
Sumit Semwal <sumit.semwal@...aro.org>,
Caleb Connolly <caleb.connolly@...aro.org>,
Marijn Suijten <marijn.suijten@...ainline.org>,
Vinod Koul <vkoul@...nel.org>
Cc: Cong Yang <yangcong5@...qin.corp-partner.google.com>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH v2 7/7] drm/panel: lg-sw43408: use new streamlined MIPI DSI
API
Use newer mipi_dsi_*_multi() functions in order to simplify and cleanup
panel's prepare() and unprepare() functions.
Reviewed-by: Douglas Anderson <dianders@...omium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
drivers/gpu/drm/panel/panel-lg-sw43408.c | 95 +++++++++++++-------------------
1 file changed, 37 insertions(+), 58 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c
index 67a98ac508f8..f3dcc39670ea 100644
--- a/drivers/gpu/drm/panel/panel-lg-sw43408.c
+++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c
@@ -40,104 +40,83 @@ static inline struct sw43408_panel *to_panel_info(struct drm_panel *panel)
static int sw43408_unprepare(struct drm_panel *panel)
{
- struct sw43408_panel *ctx = to_panel_info(panel);
+ struct sw43408_panel *sw43408 = to_panel_info(panel);
+ struct mipi_dsi_multi_context ctx = { .dsi = sw43408->link };
int ret;
- ret = mipi_dsi_dcs_set_display_off(ctx->link);
- if (ret < 0)
- dev_err(panel->dev, "set_display_off cmd failed ret = %d\n", ret);
+ mipi_dsi_dcs_set_display_off_multi(&ctx);
- ret = mipi_dsi_dcs_enter_sleep_mode(ctx->link);
- if (ret < 0)
- dev_err(panel->dev, "enter_sleep cmd failed ret = %d\n", ret);
+ mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
- msleep(100);
+ mipi_dsi_msleep(&ctx, 100);
- gpiod_set_value(ctx->reset_gpio, 1);
+ gpiod_set_value(sw43408->reset_gpio, 1);
+
+ ret = regulator_bulk_disable(ARRAY_SIZE(sw43408->supplies), sw43408->supplies);
- return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ return ret ? : ctx.accum_err;
}
static int sw43408_program(struct drm_panel *panel)
{
- struct sw43408_panel *ctx = to_panel_info(panel);
+ struct sw43408_panel *sw43408 = to_panel_info(panel);
+ struct mipi_dsi_multi_context ctx = { .dsi = sw43408->link };
struct drm_dsc_picture_parameter_set pps;
- int ret;
- mipi_dsi_dcs_write_seq(ctx->link, MIPI_DCS_SET_GAMMA_CURVE, 0x02);
+ mipi_dsi_dcs_write_seq_multi(&ctx, MIPI_DCS_SET_GAMMA_CURVE, 0x02);
- ret = mipi_dsi_dcs_set_tear_on(ctx->link, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
- if (ret < 0) {
- dev_err(panel->dev, "Failed to set tearing: %d\n", ret);
- return ret;
- }
+ mipi_dsi_dcs_set_tear_on_multi(&ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
- mipi_dsi_dcs_write_seq(ctx->link, 0x53, 0x0c, 0x30);
- mipi_dsi_dcs_write_seq(ctx->link, 0x55, 0x00, 0x70, 0xdf, 0x00, 0x70, 0xdf);
- mipi_dsi_dcs_write_seq(ctx->link, 0xf7, 0x01, 0x49, 0x0c);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0x53, 0x0c, 0x30);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0x55, 0x00, 0x70, 0xdf, 0x00, 0x70, 0xdf);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xf7, 0x01, 0x49, 0x0c);
- ret = mipi_dsi_dcs_exit_sleep_mode(ctx->link);
- if (ret < 0) {
- dev_err(panel->dev, "Failed to exit sleep mode: %d\n", ret);
- return ret;
- }
+ mipi_dsi_dcs_exit_sleep_mode_multi(&ctx);
- msleep(135);
+ mipi_dsi_msleep(&ctx, 135);
/* COMPRESSION_MODE moved after setting the PPS */
- mipi_dsi_dcs_write_seq(ctx->link, 0xb0, 0xac);
- mipi_dsi_dcs_write_seq(ctx->link, 0xe5,
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xb0, 0xac);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xe5,
0x00, 0x3a, 0x00, 0x3a, 0x00, 0x0e, 0x10);
- mipi_dsi_dcs_write_seq(ctx->link, 0xb5,
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xb5,
0x75, 0x60, 0x2d, 0x5d, 0x80, 0x00, 0x0a, 0x0b,
0x00, 0x05, 0x0b, 0x00, 0x80, 0x0d, 0x0e, 0x40,
0x00, 0x0c, 0x00, 0x16, 0x00, 0xb8, 0x00, 0x80,
0x0d, 0x0e, 0x40, 0x00, 0x0c, 0x00, 0x16, 0x00,
0xb8, 0x00, 0x81, 0x00, 0x03, 0x03, 0x03, 0x01,
0x01);
- msleep(85);
- mipi_dsi_dcs_write_seq(ctx->link, 0xcd,
+ mipi_dsi_msleep(&ctx, 85);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xcd,
0x00, 0x00, 0x00, 0x19, 0x19, 0x19, 0x19, 0x19,
0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
0x16, 0x16);
- mipi_dsi_dcs_write_seq(ctx->link, 0xcb, 0x80, 0x5c, 0x07, 0x03, 0x28);
- mipi_dsi_dcs_write_seq(ctx->link, 0xc0, 0x02, 0x02, 0x0f);
- mipi_dsi_dcs_write_seq(ctx->link, 0x55, 0x04, 0x61, 0xdb, 0x04, 0x70, 0xdb);
- mipi_dsi_dcs_write_seq(ctx->link, 0xb0, 0xca);
-
- ret = mipi_dsi_dcs_set_display_on(ctx->link);
- if (ret < 0) {
- dev_err(panel->dev, "Failed to set display on: %d\n", ret);
- return ret;
- }
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xcb, 0x80, 0x5c, 0x07, 0x03, 0x28);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xc0, 0x02, 0x02, 0x0f);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0x55, 0x04, 0x61, 0xdb, 0x04, 0x70, 0xdb);
+ mipi_dsi_dcs_write_seq_multi(&ctx, 0xb0, 0xca);
- msleep(50);
+ mipi_dsi_dcs_set_display_on_multi(&ctx);
- ctx->link->mode_flags &= ~MIPI_DSI_MODE_LPM;
+ mipi_dsi_msleep(&ctx, 50);
- drm_dsc_pps_payload_pack(&pps, ctx->link->dsc);
- ret = mipi_dsi_picture_parameter_set(ctx->link, &pps);
- if (ret < 0) {
- dev_err(panel->dev, "Failed to set PPS: %d\n", ret);
- return ret;
- }
+ sw43408->link->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ drm_dsc_pps_payload_pack(&pps, sw43408->link->dsc);
- ctx->link->mode_flags |= MIPI_DSI_MODE_LPM;
+ mipi_dsi_picture_parameter_set_multi(&ctx, &pps);
+
+ sw43408->link->mode_flags |= MIPI_DSI_MODE_LPM;
/*
* This panel uses PPS selectors with offset:
* PPS 1 if pps_identifier is 0
* PPS 2 if pps_identifier is 1
*/
- ret = mipi_dsi_compression_mode_ext(ctx->link, true,
+ mipi_dsi_compression_mode_ext_multi(&ctx, true,
MIPI_DSI_COMPRESSION_DSC, 1);
- if (ret < 0) {
- dev_err(panel->dev, "Failed to set compression mode: %d\n", ret);
- return ret;
- }
-
- return 0;
+ return ctx.accum_err;
}
static int sw43408_prepare(struct drm_panel *panel)
--
2.39.2
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