| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20240620181051.102173-1-tejasvipin76@gmail.com>
Date: Thu, 20 Jun 2024 23:40:49 +0530
From: Tejas Vipin <tejasvipin76@...il.com>
To: neil.armstrong@...aro.org,
quic_jesszhan@...cinc.com
Cc: Tejas Vipin <tejasvipin76@...il.com>,
dianders@...omium.org,
maarten.lankhorst@...ux.intel.com,
mripard@...nel.org,
tzimmermann@...e.de,
airlied@...il.com,
daniel@...ll.ch,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3] drm/panel: raydium-rm692e5: transition to mipi_dsi wrapped functions
Use functions introduced in commit 966e397e4f60 ("drm/mipi-dsi:
Introduce mipi_dsi_*_write_seq_multi()") and commit f79d6d28d8fe
("drm/mipi-dsi: wrap more functions for streamline handling") for the
raydium-rm692e5 panel.
Additionally, the error handling in rm692e5_prepare() is changed to
properly power the panel off in the case of a wider range of
initialization commands failing than before.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Douglas Anderson <dianders@...omium.org>
Signed-off-by: Tejas Vipin <tejasvipin76@...il.com>
---
Changes in v3:
- Remove extra blank line
- Expanded on error handling functionality in patch notes
Changes in v2:
- Change rm692e5_on to return void and take mipi_dsi_multi_context
as an argument.
- Remove unnecessary warnings.
- More efficient error handling in rm692e5_prepare
v1: https://lore.kernel.org/all/20240615093758.65431-1-tejasvipin76@gmail.com/
v2: https://lore.kernel.org/all/20240619033351.230929-1-tejasvipin76@gmail.com/
---
drivers/gpu/drm/panel/panel-raydium-rm692e5.c | 238 ++++++++----------
1 file changed, 99 insertions(+), 139 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-raydium-rm692e5.c b/drivers/gpu/drm/panel/panel-raydium-rm692e5.c
index 21d97f6b8a2f..ea1b728e85a2 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm692e5.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm692e5.c
@@ -40,176 +40,136 @@ static void rm692e5_reset(struct rm692e5_panel *ctx)
usleep_range(10000, 11000);
}
-static int rm692e5_on(struct rm692e5_panel *ctx)
+static void rm692e5_on(struct mipi_dsi_multi_context *dsi_ctx)
{
- struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
-
- dsi->mode_flags |= MIPI_DSI_MODE_LPM;
-
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x41);
- mipi_dsi_generic_write_seq(dsi, 0xd6, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x16);
- mipi_dsi_generic_write_seq(dsi, 0x8a, 0x87);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x71);
- mipi_dsi_generic_write_seq(dsi, 0x82, 0x01);
- mipi_dsi_generic_write_seq(dsi, 0xc6, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xc7, 0x2c);
- mipi_dsi_generic_write_seq(dsi, 0xc8, 0x64);
- mipi_dsi_generic_write_seq(dsi, 0xc9, 0x3c);
- mipi_dsi_generic_write_seq(dsi, 0xca, 0x80);
- mipi_dsi_generic_write_seq(dsi, 0xcb, 0x02);
- mipi_dsi_generic_write_seq(dsi, 0xcc, 0x02);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x38);
- mipi_dsi_generic_write_seq(dsi, 0x18, 0x13);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0xf4);
- mipi_dsi_generic_write_seq(dsi, 0x00, 0xff);
- mipi_dsi_generic_write_seq(dsi, 0x01, 0xff);
- mipi_dsi_generic_write_seq(dsi, 0x02, 0xcf);
- mipi_dsi_generic_write_seq(dsi, 0x03, 0xbc);
- mipi_dsi_generic_write_seq(dsi, 0x04, 0xb9);
- mipi_dsi_generic_write_seq(dsi, 0x05, 0x99);
- mipi_dsi_generic_write_seq(dsi, 0x06, 0x02);
- mipi_dsi_generic_write_seq(dsi, 0x07, 0x0a);
- mipi_dsi_generic_write_seq(dsi, 0x08, 0xe0);
- mipi_dsi_generic_write_seq(dsi, 0x09, 0x4c);
- mipi_dsi_generic_write_seq(dsi, 0x0a, 0xeb);
- mipi_dsi_generic_write_seq(dsi, 0x0b, 0xe8);
- mipi_dsi_generic_write_seq(dsi, 0x0c, 0x32);
- mipi_dsi_generic_write_seq(dsi, 0x0d, 0x07);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0xf4);
- mipi_dsi_generic_write_seq(dsi, 0x0d, 0xc0);
- mipi_dsi_generic_write_seq(dsi, 0x0e, 0xff);
- mipi_dsi_generic_write_seq(dsi, 0x0f, 0xff);
- mipi_dsi_generic_write_seq(dsi, 0x10, 0x33);
- mipi_dsi_generic_write_seq(dsi, 0x11, 0x6f);
- mipi_dsi_generic_write_seq(dsi, 0x12, 0x6e);
- mipi_dsi_generic_write_seq(dsi, 0x13, 0xa6);
- mipi_dsi_generic_write_seq(dsi, 0x14, 0x80);
- mipi_dsi_generic_write_seq(dsi, 0x15, 0x02);
- mipi_dsi_generic_write_seq(dsi, 0x16, 0x38);
- mipi_dsi_generic_write_seq(dsi, 0x17, 0xd3);
- mipi_dsi_generic_write_seq(dsi, 0x18, 0x3a);
- mipi_dsi_generic_write_seq(dsi, 0x19, 0xba);
- mipi_dsi_generic_write_seq(dsi, 0x1a, 0xcc);
- mipi_dsi_generic_write_seq(dsi, 0x1b, 0x01);
-
- ret = mipi_dsi_dcs_nop(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to nop: %d\n", ret);
- return ret;
- }
- msleep(32);
-
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x38);
- mipi_dsi_generic_write_seq(dsi, 0x18, 0x13);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0xd1);
- mipi_dsi_generic_write_seq(dsi, 0xd3, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xd0, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xd2, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xd4, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xb4, 0x01);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0xf9);
- mipi_dsi_generic_write_seq(dsi, 0x00, 0xaf);
- mipi_dsi_generic_write_seq(dsi, 0x1d, 0x37);
- mipi_dsi_generic_write_seq(dsi, 0x44, 0x0a, 0x7b);
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0xfa, 0x01);
- mipi_dsi_generic_write_seq(dsi, 0xc2, 0x08);
- mipi_dsi_generic_write_seq(dsi, 0x35, 0x00);
- mipi_dsi_generic_write_seq(dsi, 0x51, 0x05, 0x42);
-
- ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
- return ret;
- }
- msleep(100);
-
- ret = mipi_dsi_dcs_set_display_on(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to set display on: %d\n", ret);
- return ret;
- }
-
- return 0;
+ dsi_ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x41);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd6, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x16);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x8a, 0x87);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x71);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x82, 0x01);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc6, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc7, 0x2c);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc8, 0x64);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc9, 0x3c);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xca, 0x80);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xcb, 0x02);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xcc, 0x02);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x38);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x18, 0x13);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xf4);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x00, 0xff);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x01, 0xff);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x02, 0xcf);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x03, 0xbc);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x04, 0xb9);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x05, 0x99);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x06, 0x02);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x07, 0x0a);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x08, 0xe0);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x09, 0x4c);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0a, 0xeb);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0b, 0xe8);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0c, 0x32);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0d, 0x07);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xf4);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0d, 0xc0);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0e, 0xff);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0f, 0xff);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x10, 0x33);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x11, 0x6f);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x12, 0x6e);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x13, 0xa6);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x14, 0x80);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x15, 0x02);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x16, 0x38);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x17, 0xd3);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x18, 0x3a);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x19, 0xba);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x1a, 0xcc);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x1b, 0x01);
+
+ mipi_dsi_dcs_nop_multi(dsi_ctx);
+
+ mipi_dsi_msleep(dsi_ctx, 32);
+
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x38);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x18, 0x13);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xd1);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd3, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd0, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd2, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd4, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xb4, 0x01);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xf9);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x00, 0xaf);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x1d, 0x37);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x44, 0x0a, 0x7b);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfa, 0x01);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc2, 0x08);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x35, 0x00);
+ mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x51, 0x05, 0x42);
+
+ mipi_dsi_dcs_exit_sleep_mode_multi(dsi_ctx);
+ mipi_dsi_msleep(dsi_ctx, 100);
+ mipi_dsi_dcs_set_display_on_multi(dsi_ctx);
}
static int rm692e5_disable(struct drm_panel *panel)
{
struct rm692e5_panel *ctx = to_rm692e5_panel(panel);
struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
- mipi_dsi_generic_write_seq(dsi, 0xfe, 0x00);
+ mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
- ret = mipi_dsi_dcs_set_display_off(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to set display off: %d\n", ret);
- return ret;
- }
+ mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
- ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
- return ret;
- }
- msleep(100);
+ mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
- return 0;
+ mipi_dsi_msleep(&dsi_ctx, 100);
+
+ return dsi_ctx.accum_err;
}
static int rm692e5_prepare(struct drm_panel *panel)
{
struct rm692e5_panel *ctx = to_rm692e5_panel(panel);
struct drm_dsc_picture_parameter_set pps;
- struct device *dev = &ctx->dsi->dev;
- int ret;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
- ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
- if (ret < 0) {
- dev_err(dev, "Failed to enable regulators: %d\n", ret);
- return ret;
- }
+ dsi_ctx.accum_err = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ if (dsi_ctx.accum_err)
+ return dsi_ctx.accum_err;
rm692e5_reset(ctx);
- ret = rm692e5_on(ctx);
- if (ret < 0) {
- dev_err(dev, "Failed to initialize panel: %d\n", ret);
- gpiod_set_value_cansleep(ctx->reset_gpio, 1);
- regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
- return ret;
- }
+ rm692e5_on(&dsi_ctx);
drm_dsc_pps_payload_pack(&pps, &ctx->dsc);
- ret = mipi_dsi_picture_parameter_set(ctx->dsi, &pps);
- if (ret < 0) {
- dev_err(panel->dev, "failed to transmit PPS: %d\n", ret);
- return ret;
- }
-
- ret = mipi_dsi_compression_mode(ctx->dsi, true);
- if (ret < 0) {
- dev_err(dev, "failed to enable compression mode: %d\n", ret);
- return ret;
- }
+ mipi_dsi_picture_parameter_set_multi(&dsi_ctx, &pps);
+ mipi_dsi_compression_mode_ext_multi(&dsi_ctx, true, MIPI_DSI_COMPRESSION_DSC, 0);
+ mipi_dsi_msleep(&dsi_ctx, 28);
- msleep(28);
-
- mipi_dsi_generic_write_seq(ctx->dsi, 0xfe, 0x40);
+ mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfe, 0x40);
/* 0x05 -> 90Hz, 0x00 -> 60Hz */
- mipi_dsi_generic_write_seq(ctx->dsi, 0xbd, 0x05);
+ mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x05);
- mipi_dsi_generic_write_seq(ctx->dsi, 0xfe, 0x00);
+ mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
- return 0;
+ if (dsi_ctx.accum_err) {
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ }
+
+ return dsi_ctx.accum_err;
}
static int rm692e5_unprepare(struct drm_panel *panel)
--
2.45.2
Powered by blists - more mailing lists