linux-kernel - [PATCH v2 1/2] drm/panel: mantix-mlaf057we51: transition to mipi

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Message-ID: <20240820091556.1032726-2-tejasvipin76@gmail.com>
Date: Tue, 20 Aug 2024 14:45:53 +0530
From: Tejas Vipin <tejasvipin76@...il.com>
To: agx@...xcpu.org,
	kernel@...i.sm,
	neil.armstrong@...aro.org
Cc: dianders@...omium.org,
	quic_jesszhan@...cinc.com,
	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,
	Tejas Vipin <tejasvipin76@...il.com>
Subject: [PATCH v2 1/2] drm/panel: mantix-mlaf057we51: transition to mipi_dsi wrapped functions

Changes the mantix-mlaf057we51 panel to use multi style functions for
improved error handling.

Reviewed-by: Guido Günther <agx@...xcpu.org>
Reviewed-by: Douglas Anderson <dianders@...omium.org>
Signed-off-by: Tejas Vipin <tejasvipin76@...il.com>
---
 .../gpu/drm/panel/panel-mantix-mlaf057we51.c  | 77 +++++++------------
 1 file changed, 26 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
index ea4a6bf6d35b..2a365eaa4ad4 100644
--- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
+++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
@@ -45,82 +45,57 @@ static inline struct mantix *panel_to_mantix(struct drm_panel *panel)
 	return container_of(panel, struct mantix, panel);
 }
 
-static int mantix_init_sequence(struct mantix *ctx)
+static void mantix_init_sequence(struct mipi_dsi_multi_context *dsi_ctx)
 {
-	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-	struct device *dev = ctx->dev;
-
 	/*
 	 * Init sequence was supplied by the panel vendor.
 	 */
-	mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A);
-
-	mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_INT_CANCEL, 0x03);
-	mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A, 0x03);
-	mipi_dsi_generic_write_seq(dsi, 0x80, 0xA9, 0x00);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A);
 
-	mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A, 0x09);
-	mipi_dsi_generic_write_seq(dsi, 0x80, 0x64, 0x00, 0x64, 0x00, 0x00);
-	msleep(20);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_INT_CANCEL, 0x03);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A, 0x03);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x80, 0xA9, 0x00);
 
-	mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_SPI_FINISH, 0xA5);
-	mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x00, 0x2F);
-	msleep(20);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A, 0x09);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x80, 0x64, 0x00, 0x64, 0x00, 0x00);
+	mipi_dsi_msleep(dsi_ctx, 20);
 
-	dev_dbg(dev, "Panel init sequence done\n");
-	return 0;
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_SPI_FINISH, 0xA5);
+	mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x00, 0x2F);
+	mipi_dsi_msleep(dsi_ctx, 20);
 }
 
 static int mantix_enable(struct drm_panel *panel)
 {
 	struct mantix *ctx = panel_to_mantix(panel);
-	struct device *dev = ctx->dev;
-	struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
-	int ret;
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
 
-	ret = mantix_init_sequence(ctx);
-	if (ret < 0) {
-		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);
-		return ret;
-	}
+	mantix_init_sequence(&dsi_ctx);
+	if (!dsi_ctx.accum_err)
+		dev_dbg(ctx->dev, "Panel init sequence done\n");
 
-	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to exit sleep mode\n");
-		return ret;
-	}
-	msleep(20);
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 20);
 
-	ret = mipi_dsi_dcs_set_display_on(dsi);
-	if (ret)
-		return ret;
-	usleep_range(10000, 12000);
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+	mipi_dsi_usleep_range(&dsi_ctx, 10000, 12000);
 
-	ret = mipi_dsi_turn_on_peripheral(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to turn on peripheral\n");
-		return ret;
-	}
+	mipi_dsi_turn_on_peripheral_multi(&dsi_ctx);
 
-	return 0;
+	return dsi_ctx.accum_err;
 }
 
 static int mantix_disable(struct drm_panel *panel)
 {
 	struct mantix *ctx = panel_to_mantix(panel);
 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-	int ret;
-
-	ret = mipi_dsi_dcs_set_display_off(dsi);
-	if (ret < 0)
-		dev_err(ctx->dev, "Failed to turn off the display: %d\n", ret);
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
 
-	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
-	if (ret < 0)
-		dev_err(ctx->dev, "Failed to enter sleep mode: %d\n", ret);
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
 
-
-	return 0;
+	return dsi_ctx.accum_err;
 }
 
 static int mantix_unprepare(struct drm_panel *panel)
-- 
2.46.0