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Fri, 18 Apr 2025 21:12:43 -0700 (PDT) From: Tejas Vipin To: neil.armstrong@linaro.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: quic_jesszhan@quicinc.com, dianders@chromium.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, asrivats@redhat.com, Tejas Vipin Subject: [PATCH 1/2] drm/panel: panel-samsung-sofef00: transition to mipi_dsi wrapped functions Date: Sat, 19 Apr 2025 09:42:09 +0530 Message-ID: <20250419041210.515517-2-tejasvipin76@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250419041210.515517-1-tejasvipin76@gmail.com> References: <20250419041210.515517-1-tejasvipin76@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" Changes the samsung-sofef00 panel to use multi style functions for improved error handling. Signed-off-by: Tejas Vipin Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/panel/panel-samsung-sofef00.c | 70 ++++++------------- 1 file changed, 21 insertions(+), 49 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-samsung-sofef00.c b/drivers/gpu/dr= m/panel/panel-samsung-sofef00.c index 04ce925b3d9d..e20c85d5d9e1 100644 --- a/drivers/gpu/drm/panel/panel-samsung-sofef00.c +++ b/drivers/gpu/drm/panel/panel-samsung-sofef00.c @@ -44,66 +44,44 @@ static void sofef00_panel_reset(struct sofef00_panel *c= tx) static int sofef00_panel_on(struct sofef00_panel *ctx) { struct mipi_dsi_device *dsi =3D ctx->dsi; - struct device *dev =3D &dsi->dev; - int ret; + struct mipi_dsi_multi_context dsi_ctx =3D { .dsi =3D dsi }; =20 dsi->mode_flags |=3D MIPI_DSI_MODE_LPM; =20 - ret =3D mipi_dsi_dcs_exit_sleep_mode(dsi); - if (ret < 0) { - dev_err(dev, "Failed to exit sleep mode: %d\n", ret); - return ret; - } - usleep_range(10000, 11000); + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_usleep_range(&dsi_ctx, 10000, 11000); =20 - mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a); =20 - ret =3D mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); - if (ret < 0) { - dev_err(dev, "Failed to set tear on: %d\n", ret); - return ret; - } + mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK); =20 - mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); - mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); - mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x07); - mipi_dsi_dcs_write_seq(dsi, 0xb6, 0x12); - mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x07); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0x12); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x= 20); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00); =20 - ret =3D mipi_dsi_dcs_set_display_on(dsi); - if (ret < 0) { - dev_err(dev, "Failed to set display on: %d\n", ret); - return ret; - } + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); =20 - return 0; + return dsi_ctx.accum_err; } =20 static int sofef00_panel_off(struct sofef00_panel *ctx) { struct mipi_dsi_device *dsi =3D ctx->dsi; - struct device *dev =3D &dsi->dev; - int ret; + struct mipi_dsi_multi_context dsi_ctx =3D { .dsi =3D dsi }; =20 dsi->mode_flags &=3D ~MIPI_DSI_MODE_LPM; =20 - ret =3D mipi_dsi_dcs_set_display_off(dsi); - if (ret < 0) { - dev_err(dev, "Failed to set display off: %d\n", ret); - return ret; - } - msleep(40); + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 40); =20 - ret =3D mipi_dsi_dcs_enter_sleep_mode(dsi); - if (ret < 0) { - dev_err(dev, "Failed to enter sleep mode: %d\n", ret); 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Fri, 18 Apr 2025 21:12:47 -0700 (PDT) Received: from distilledx.SRMIST.EDU.IN ([59.152.80.69]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22c50bde283sm25296545ad.6.2025.04.18.21.12.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Apr 2025 21:12:47 -0700 (PDT) From: Tejas Vipin To: neil.armstrong@linaro.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: quic_jesszhan@quicinc.com, dianders@chromium.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, asrivats@redhat.com, Tejas Vipin Subject: [PATCH 2/2] drm/mipi-dsi: Remove mipi_dsi_dcs_write_seq Date: Sat, 19 Apr 2025 09:42:10 +0530 Message-ID: <20250419041210.515517-3-tejasvipin76@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250419041210.515517-1-tejasvipin76@gmail.com> References: <20250419041210.515517-1-tejasvipin76@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" There are no remaining users of mipi_dsi_dcs_write_seq and it can be removed in favor of mipi_dsi_dcs_write_seq_multi. Signed-off-by: Tejas Vipin Reviewed-by: Dmitry Baryshkov --- include/drm/drm_mipi_dsi.h | 22 ---------------------- 1 file changed, 22 deletions(-) diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index bd40a443385c..0d6e0d03d802 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -416,28 +416,6 @@ void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_m= ulti_context *ctx); mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \ } while (0) =20 -/** - * mipi_dsi_dcs_write_seq - transmit a DCS command with payload - * - * This macro will print errors for you and will RETURN FROM THE CALLING - * FUNCTION (yes this is non-intuitive) upon error. - * - * Because of the non-intuitive return behavior, THIS MACRO IS DEPRECATED. - * Please replace calls of it with mipi_dsi_dcs_write_seq_multi(). - * - * @dsi: DSI peripheral device - * @cmd: Command - * @seq: buffer containing data to be transmitted - */ -#define mipi_dsi_dcs_write_seq(dsi, cmd, seq...) = \ - do { \ - static const u8 d[] =3D { cmd, seq }; \ - int ret; \ - ret =3D mipi_dsi_dcs_write_buffer_chatty(dsi, d, ARRAY_SIZE(d)); \ - if (ret < 0) \ - return ret; \ - } while (0) - /** * mipi_dsi_dcs_write_seq_multi - transmit a DCS command with payload * --=20 2.49.0