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[176.58.251.75]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4954a2a2504sm241425285e9.2.2026.07.19.12.04.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jul 2026 12:04:04 -0700 (PDT) From: Michail Tatas To: michael@amarulasolutions.com, neil.armstrong@linaro.org, jesszhan0024@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, dianders@chromium.org Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Michail Tatas Subject: [PATCH v2 1/3] drm/panel: ilitek-ili9805: Use _multi variants Date: Sun, 19 Jul 2026 22:03:55 +0300 Message-ID: <20260719190358.438699-2-michail.tatas@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260719190358.438699-1-michail.tatas@gmail.com> References: <20260719190358.438699-1-michail.tatas@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Convert functions mipi_dsi_* to mipi_dsi_*_multi as per the gpu/todo file. The multi variant of these functions include improved error handling. Signed-off-by: Michail Tatas Reviewed-by: Douglas Anderson Reviewed-by: Neil Armstrong --- drivers/gpu/drm/panel/panel-ilitek-ili9805.c | 51 +++++--------------- 1 file changed, 13 insertions(+), 38 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9805.c b/drivers/gpu/drm= /panel/panel-ilitek-ili9805.c index e6c483851f1f..7e9587afebbe 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9805.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9805.c @@ -159,36 +159,23 @@ static int ili9805_power_off(struct ili9805 *ctx) =20 static int ili9805_activate(struct ili9805 *ctx) { - struct mipi_dsi_device *dsi =3D ctx->dsi; - struct device *dev =3D &dsi->dev; - int i, ret; + struct mipi_dsi_multi_context dsi_ctx =3D { .dsi =3D ctx->dsi }; + int i; =20 for (i =3D 0; i < ctx->desc->init_length; i++) { const struct ili9805_instr *instr =3D &ctx->desc->init[i]; =20 - ret =3D mipi_dsi_dcs_write_buffer(ctx->dsi, instr->data, instr->len); - if (ret < 0) - return ret; + mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, instr->data, instr->len); =20 if (instr->delay > 0) - msleep(instr->delay); - } - - ret =3D mipi_dsi_dcs_exit_sleep_mode(ctx->dsi); - if (ret) { - dev_err(dev, "Failed to exit sleep mode (%d)\n", ret); - return ret; + mipi_dsi_msleep(&dsi_ctx, instr->delay); } =20 - usleep_range(5000, 6000); + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_usleep_range(&dsi_ctx, 5000, 6000); + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); =20 - ret =3D mipi_dsi_dcs_set_display_on(ctx->dsi); - if (ret) { - dev_err(dev, "Failed to set display ON (%d)\n", ret); - return ret; - } - - return 0; + return dsi_ctx.accum_err; } =20 static int ili9805_prepare(struct drm_panel *panel) @@ -211,25 +198,13 @@ static int ili9805_prepare(struct drm_panel *panel) =20 static int ili9805_deactivate(struct ili9805 *ctx) { - struct mipi_dsi_device *dsi =3D ctx->dsi; - struct device *dev =3D &dsi->dev; - int ret; - - ret =3D mipi_dsi_dcs_set_display_off(ctx->dsi); - if (ret < 0) { - dev_err(dev, "Failed to set display OFF (%d)\n", ret); - return ret; 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[176.58.251.75]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47f63e499c2sm21523046f8f.4.2026.07.19.12.04.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jul 2026 12:04:07 -0700 (PDT) From: Michail Tatas To: michael@amarulasolutions.com, neil.armstrong@linaro.org, jesszhan0024@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, dianders@chromium.org Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Michail Tatas Subject: [PATCH v2 2/3] drm/panel: ilitek-ili9805: Use dsi_multi in init Date: Sun, 19 Jul 2026 22:03:56 +0300 Message-ID: <20260719190358.438699-3-michail.tatas@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260719190358.438699-1-michail.tatas@gmail.com> References: <20260719190358.438699-1-michail.tatas@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Drop the struct ili9805_instr and the init table and use init functions. Signed-off-by: Michail Tatas Reviewed-by: Douglas Anderson Reviewed-by: Neil Armstrong --- drivers/gpu/drm/panel/panel-ilitek-ili9805.c | 156 +++++++++---------- 1 file changed, 73 insertions(+), 83 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9805.c b/drivers/gpu/drm= /panel/panel-ilitek-ili9805.c index 7e9587afebbe..a70b9512746a 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9805.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9805.c @@ -25,22 +25,9 @@ #define ILI9805_SETEXTC_PARAMETER2 (0x98) #define ILI9805_SETEXTC_PARAMETER3 (0x05) =20 -#define ILI9805_INSTR(_delay, ...) { \ - .delay =3D (_delay), \ - .len =3D sizeof((u8[]) {__VA_ARGS__}), \ - .data =3D (u8[]){__VA_ARGS__} \ - } - -struct ili9805_instr { - size_t len; - const u8 *data; - u32 delay; -}; - struct ili9805_desc { const char *name; - const struct ili9805_instr *init; - const size_t init_length; + void (*init)(struct mipi_dsi_multi_context *ctx); const struct drm_display_mode *mode; u32 width_mm; u32 height_mm; @@ -56,65 +43,78 @@ struct ili9805 { struct gpio_desc *reset_gpio; }; =20 -static const struct ili9805_instr gpm1780a0_init[] =3D { - ILI9805_INSTR(100, ILI9805_EXTCMD_CMD_SET_ENABLE_REG, ILI9805_SETEXTC_PAR= AMETER1, - ILI9805_SETEXTC_PARAMETER2, ILI9805_SETEXTC_PARAMETER3), - ILI9805_INSTR(100, 0xFD, 0x0F, 0x10, 0x44, 0x00), - ILI9805_INSTR(0, 0xf8, 0x18, 0x02, 0x02, 0x18, 0x02, 0x02, 0x30, 0x00, - 0x00, 0x30, 0x00, 0x00, 0x30, 0x00, 0x00), - ILI9805_INSTR(0, 0xB8, 0x62), - ILI9805_INSTR(0, 0xF1, 0x00), - ILI9805_INSTR(0, 0xF2, 0x00, 0x58, 0x40), - ILI9805_INSTR(0, 0xF3, 0x60, 0x83, 0x04), - ILI9805_INSTR(0, 0xFC, 0x04, 0x0F, 0x01), - ILI9805_INSTR(0, 0xEB, 0x08, 0x0F), - ILI9805_INSTR(0, 0xe0, 0x00, 0x08, 0x0d, 0x0e, 0x0e, 0x0d, 0x0a, 0x08, 0x= 04, - 0x08, 0x0d, 0x0f, 0x0b, 0x1c, 0x14, 0x0a), - ILI9805_INSTR(0, 0xe1, 0x00, 0x08, 0x0d, 0x0e, 0x0e, 0x0d, 0x0a, 0x08, 0x= 04, - 0x08, 0x0d, 0x0f, 0x0b, 0x1c, 0x14, 0x0a), - ILI9805_INSTR(10, 0xc1, 0x13, 0x39, 0x19, 0x06), - ILI9805_INSTR(10, 0xc7, 0xe5), - ILI9805_INSTR(10, 0xB1, 0x00, 0x12, 0x14), - ILI9805_INSTR(10, 0xB4, 0x02), - ILI9805_INSTR(0, 0xBB, 0x14, 0x55), - ILI9805_INSTR(0, MIPI_DCS_SET_ADDRESS_MODE, 0x08), - ILI9805_INSTR(0, MIPI_DCS_SET_PIXEL_FORMAT, 0x77), - ILI9805_INSTR(0, 0x20), - ILI9805_INSTR(0, 0xB0, 0x01), - ILI9805_INSTR(0, 0xB6, 0x31, 0x00, 0xef), - ILI9805_INSTR(0, 0xDF, 0x23), - ILI9805_INSTR(0, 0xB9, 0x02, 0x00), -}; +static void gpm1780a0_init(struct mipi_dsi_multi_context *ctx) +{ + mipi_dsi_dcs_write_seq_multi(ctx, ILI9805_EXTCMD_CMD_SET_ENABLE_REG, ILI9= 805_SETEXTC_PARAMETER1, + ILI9805_SETEXTC_PARAMETER2, ILI9805_SETEXTC_PARAMETER3); + mipi_dsi_msleep(ctx, 100); + mipi_dsi_dcs_write_seq_multi(ctx, 0xFD, 0x0F, 0x10, 0x44, 0x00); + mipi_dsi_msleep(ctx, 100); + mipi_dsi_dcs_write_seq_multi(ctx, 0xf8, 0x18, 0x02, 0x02, 0x18, 0x02, 0x0= 2, 0x30, 0x00, + 0x00, 0x30, 0x00, 0x00, 0x30, 0x00, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB8, 0x62); + mipi_dsi_dcs_write_seq_multi(ctx, 0xF1, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0xF2, 0x00, 0x58, 0x40); + mipi_dsi_dcs_write_seq_multi(ctx, 0xF3, 0x60, 0x83, 0x04); + mipi_dsi_dcs_write_seq_multi(ctx, 0xFC, 0x04, 0x0F, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xEB, 0x08, 0x0F); + mipi_dsi_dcs_write_seq_multi(ctx, 0xe0, 0x00, 0x08, 0x0d, 0x0e, 0x0e, 0x0= d, 0x0a, 0x08, 0x04, + 0x08, 0x0d, 0x0f, 0x0b, 0x1c, 0x14, 0x0a); + mipi_dsi_dcs_write_seq_multi(ctx, 0xe1, 0x00, 0x08, 0x0d, 0x0e, 0x0e, 0x0= d, 0x0a, 0x08, 0x04, + 0x08, 0x0d, 0x0f, 0x0b, 0x1c, 0x14, 0x0a); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc1, 0x13, 0x39, 0x19, 0x06); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc7, 0xe5); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB1, 0x00, 0x12, 0x14); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB4, 0x02); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xBB, 0x14, 0x55); + mipi_dsi_dcs_write_seq_multi(ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x08); + mipi_dsi_dcs_write_seq_multi(ctx, MIPI_DCS_SET_PIXEL_FORMAT, 0x77); + mipi_dsi_dcs_write_seq_multi(ctx, 0x20); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB0, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB6, 0x31, 0x00, 0xef); + mipi_dsi_dcs_write_seq_multi(ctx, 0xDF, 0x23); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB9, 0x02, 0x00); +} =20 -static const struct ili9805_instr tm041xdhg01_init[] =3D { - ILI9805_INSTR(100, ILI9805_EXTCMD_CMD_SET_ENABLE_REG, ILI9805_SETEXTC_PAR= AMETER1, - ILI9805_SETEXTC_PARAMETER2, ILI9805_SETEXTC_PARAMETER3), - ILI9805_INSTR(100, 0xFD, 0x0F, 0x13, 0x44, 0x00), - ILI9805_INSTR(0, 0xf8, 0x18, 0x02, 0x02, 0x18, 0x02, 0x02, 0x30, 0x01, - 0x01, 0x30, 0x01, 0x01, 0x30, 0x01, 0x01), - ILI9805_INSTR(0, 0xB8, 0x74), - ILI9805_INSTR(0, 0xF1, 0x00), - ILI9805_INSTR(0, 0xF2, 0x00, 0x58, 0x40), - ILI9805_INSTR(0, 0xFC, 0x04, 0x0F, 0x01), - ILI9805_INSTR(0, 0xEB, 0x08, 0x0F), - ILI9805_INSTR(0, 0xe0, 0x01, 0x0d, 0x15, 0x0e, 0x0f, 0x0f, 0x0b, 0x08, 0x= 04, - 0x07, 0x0a, 0x0d, 0x0c, 0x15, 0x0f, 0x08), - ILI9805_INSTR(0, 0xe1, 0x01, 0x0d, 0x15, 0x0e, 0x0f, 0x0f, 0x0b, 0x08, 0x= 04, - 0x07, 0x0a, 0x0d, 0x0c, 0x15, 0x0f, 0x08), - ILI9805_INSTR(10, 0xc1, 0x15, 0x03, 0x03, 0x31), - ILI9805_INSTR(10, 0xB1, 0x00, 0x12, 0x14), - ILI9805_INSTR(10, 0xB4, 0x02), - ILI9805_INSTR(0, 0xBB, 0x14, 0x55), - ILI9805_INSTR(0, MIPI_DCS_SET_ADDRESS_MODE, 0x0a), - ILI9805_INSTR(0, MIPI_DCS_SET_PIXEL_FORMAT, 0x77), - ILI9805_INSTR(0, 0x20), - ILI9805_INSTR(0, 0xB0, 0x00), - ILI9805_INSTR(0, 0xB6, 0x01), - ILI9805_INSTR(0, 0xc2, 0x11), - ILI9805_INSTR(0, 0x51, 0xFF), - ILI9805_INSTR(0, 0x53, 0x24), - ILI9805_INSTR(0, 0x55, 0x00), -}; +static void tm041xdhg01_init(struct mipi_dsi_multi_context *ctx) +{ + mipi_dsi_dcs_write_seq_multi(ctx, ILI9805_EXTCMD_CMD_SET_ENABLE_REG, ILI9= 805_SETEXTC_PARAMETER1, + ILI9805_SETEXTC_PARAMETER2, ILI9805_SETEXTC_PARAMETER3); + mipi_dsi_msleep(ctx, 100); + mipi_dsi_dcs_write_seq_multi(ctx, 0xFD, 0x0F, 0x13, 0x44, 0x00); + mipi_dsi_msleep(ctx, 100); + mipi_dsi_dcs_write_seq_multi(ctx, 0xf8, 0x18, 0x02, 0x02, 0x18, 0x02, 0x0= 2, 0x30, 0x01, + 0x01, 0x30, 0x01, 0x01, 0x30, 0x01, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB8, 0x74); + mipi_dsi_dcs_write_seq_multi(ctx, 0xF1, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0xF2, 0x00, 0x58, 0x40); + mipi_dsi_dcs_write_seq_multi(ctx, 0xFC, 0x04, 0x0F, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xEB, 0x08, 0x0F); + mipi_dsi_dcs_write_seq_multi(ctx, 0xe0, 0x01, 0x0d, 0x15, 0x0e, 0x0f, 0x0= f, 0x0b, 0x08, 0x04, + 0x07, 0x0a, 0x0d, 0x0c, 0x15, 0x0f, 0x08); + mipi_dsi_dcs_write_seq_multi(ctx, 0xe1, 0x01, 0x0d, 0x15, 0x0e, 0x0f, 0x0= f, 0x0b, 0x08, 0x04, + 0x07, 0x0a, 0x0d, 0x0c, 0x15, 0x0f, 0x08); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc1, 0x15, 0x03, 0x03, 0x31); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB1, 0x00, 0x12, 0x14); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB4, 0x02); + mipi_dsi_msleep(ctx, 10); + mipi_dsi_dcs_write_seq_multi(ctx, 0xBB, 0x14, 0x55); + mipi_dsi_dcs_write_seq_multi(ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x0a); + mipi_dsi_dcs_write_seq_multi(ctx, MIPI_DCS_SET_PIXEL_FORMAT, 0x77); + mipi_dsi_dcs_write_seq_multi(ctx, 0x20); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB0, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0xB6, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc2, 0x11); + mipi_dsi_dcs_write_seq_multi(ctx, 0x51, 0xFF); + mipi_dsi_dcs_write_seq_multi(ctx, 0x53, 0x24); + mipi_dsi_dcs_write_seq_multi(ctx, 0x55, 0x00); +} =20 static inline struct ili9805 *panel_to_ili9805(struct drm_panel *panel) { @@ -160,16 +160,8 @@ static int ili9805_power_off(struct ili9805 *ctx) static int ili9805_activate(struct ili9805 *ctx) { struct mipi_dsi_multi_context dsi_ctx =3D { .dsi =3D ctx->dsi }; 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[176.58.251.75]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4954c841a0dsm181991045e9.5.2026.07.19.12.04.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jul 2026 12:04:10 -0700 (PDT) From: Michail Tatas To: michael@amarulasolutions.com, neil.armstrong@linaro.org, jesszhan0024@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, dianders@chromium.org Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Michail Tatas Subject: [PATCH v2 3/3] drm/panel: ilitek-ili9805: make cleanup funcs void Date: Sun, 19 Jul 2026 22:03:57 +0300 Message-ID: <20260719190358.438699-4-michail.tatas@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260719190358.438699-1-michail.tatas@gmail.com> References: <20260719190358.438699-1-michail.tatas@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Make cleanup functions return void since no one is checking their return values Signed-off-by: Michail Tatas Reviewed-by: Douglas Anderson Reviewed-by: Neil Armstrong --- drivers/gpu/drm/panel/panel-ilitek-ili9805.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9805.c b/drivers/gpu/drm= /panel/panel-ilitek-ili9805.c index a70b9512746a..64cfaf981e9f 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9805.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9805.c @@ -148,13 +148,11 @@ static int ili9805_power_on(struct ili9805 *ctx) return 0; } =20 -static int ili9805_power_off(struct ili9805 *ctx) +static void ili9805_power_off(struct ili9805 *ctx) { gpiod_set_value(ctx->reset_gpio, 0); regulator_disable(ctx->dvdd); regulator_disable(ctx->avdd); - - return 0; } =20 static int ili9805_activate(struct ili9805 *ctx) @@ -188,15 +186,13 @@ static int ili9805_prepare(struct drm_panel *panel) return 0; } =20 -static int ili9805_deactivate(struct ili9805 *ctx) +static void ili9805_deactivate(struct ili9805 *ctx) { struct mipi_dsi_multi_context dsi_ctx =3D { .dsi =3D ctx->dsi }; =20 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); mipi_dsi_usleep_range(&dsi_ctx, 5000, 10000); mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); - - return dsi_ctx.accum_err; } =20 static int ili9805_unprepare(struct drm_panel *panel) --=20 2.43.0