[PATCH] drm/panel/synaptics-r63353: Use _multi variants

[Anusha Srivatsa <asrivats@redhat.com>]

Move away from using deprecated API and use _multi
variants if available. Use mipi_dsi_msleep()
and mipi_dsi_usleep_range() instead of msleep()
and usleep_range() respectively.

Used Coccinelle to find the multiple occurences.
SmPl patch:
@rule@
identifier dsi_var;
identifier r;
identifier func;
type t;
position p;
expression dsi_device;
expression list es;
@@
t func(...) {
...
struct mipi_dsi_device *dsi_var = dsi_device;
+struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi_var };
<+...
(
-mipi_dsi_dcs_write_seq(dsi_var,es)@p;
+mipi_dsi_dcs_write_seq_multi(&dsi_ctx,es);
|
-mipi_dsi_generic_write_seq(dsi_var,es)@p;
+mipi_dsi_generic_write_seq_multi(&dsi_ctx,es);
|
-mipi_dsi_generic_write(dsi_var,es)@p;
+mipi_dsi_generic_write_multi(&dsi_ctx,es);
|
-r = mipi_dsi_dcs_nop(dsi_var)@p;
+mipi_dsi_dcs_nop_multi(&dsi_ctx);
|
....rest of API
..
)
-if(r < 0) {
-...
-}
...+>

Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Tejas Vipin <tejasvipin76@gmail.com>
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
Previous attempt for this change was addressed in:[1]
The series did not handle returns properly and still
used msleep() and usleep_range() API.
It also collided with an Tejas's similar efforts.

Will be sending the patches per driver instead of
major haul of changes.

Following [2] for reference.

[1] -> https://patchwork.freedesktop.org/series/144824/
[2] -> https://lore.kernel.org/dri-devel/20250220045721.145905-1-tejasvipin76@gmail.com/#iZ31drivers:gpu:drm:panel:panel-sony-td4353-jdi.c
---
 drivers/gpu/drm/panel/panel-synaptics-r63353.c | 64 +++++++-------------------
 1 file changed, 17 insertions(+), 47 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-synaptics-r63353.c b/drivers/gpu/drm/panel/panel-synaptics-r63353.c
index 17349825543fe6a117bbfd9cb92a564ce433d13a..9cb1fe985a6fde7a475746019e89bd1dcee898ff 100644
--- a/drivers/gpu/drm/panel/panel-synaptics-r63353.c
+++ b/drivers/gpu/drm/panel/panel-synaptics-r63353.c
@@ -106,53 +106,32 @@ static int r63353_panel_power_off(struct r63353_panel *rpanel)
 static int r63353_panel_activate(struct r63353_panel *rpanel)
 {
 	struct mipi_dsi_device *dsi = rpanel->dsi;
-	struct device *dev = &dsi->dev;
-	int i, ret;
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
+	int i;
 
-	ret = mipi_dsi_dcs_soft_reset(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to do Software Reset (%d)\n", ret);
-		goto fail;
-	}
+	mipi_dsi_dcs_soft_reset_multi(&dsi_ctx);
 
-	usleep_range(15000, 17000);
+	mipi_dsi_usleep_range(&dsi_ctx, 15000, 17000);
 
-	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to enter sleep mode (%d)\n", ret);
-		goto fail;
-	}
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
 
 	for (i = 0; i < rpanel->pdata->init_length; i++) {
 		const struct r63353_instr *instr = &rpanel->pdata->init[i];
 
-		ret = mipi_dsi_dcs_write_buffer(dsi, instr->data, instr->len);
-		if (ret < 0)
-			goto fail;
+		mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, instr->data,
+						instr->len);
 	}
 
-	msleep(120);
+	mipi_dsi_msleep(&dsi_ctx, 120);
 
-	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to exit sleep mode (%d)\n", ret);
-		goto fail;
-	}
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
 
-	usleep_range(5000, 10000);
+	mipi_dsi_usleep_range(&dsi_ctx, 5000, 10000);
 
-	ret = mipi_dsi_dcs_set_display_on(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to set display ON (%d)\n", ret);
-		goto fail;
-	}
-
-	return 0;
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
 
-fail:
-	gpiod_set_value(rpanel->reset_gpio, 0);
+	return dsi_ctx.accum_err;
 
-	return ret;
 }
 
 static int r63353_panel_prepare(struct drm_panel *panel)
@@ -181,24 +160,15 @@ static int r63353_panel_prepare(struct drm_panel *panel)
 static int r63353_panel_deactivate(struct r63353_panel *rpanel)
 {
 	struct mipi_dsi_device *dsi = rpanel->dsi;
-	struct device *dev = &dsi->dev;
-	int ret;
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
 
-	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);
 
-	usleep_range(5000, 10000);
+	mipi_dsi_usleep_range(&dsi_ctx, 5000, 10000);
 
-	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to enter sleep mode (%d)\n", ret);
-		return ret;
-	}
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
 
-	return 0;
+	return dsi_ctx.accum_err;
 }
 
 static int r63353_panel_unprepare(struct drm_panel *panel)

---
base-commit: ced7486468ac3b38d59a69fca5d97998499c936b
change-id: 20250305-mipi-synaptic-1-a2043543cd3a

Best regards,
-- 
Anusha Srivatsa <asrivats@redhat.com>