[PATCH 1/3] drm: panel: Replace usage of deprecated MIPI macro

[Brigham Campbell]

Replace all usages of the deprecated mipi_dsi_generic_write_seq() with
mipi_dsi_generic_write_seq_multi().

This patch's usage of the mipi_dsi_multi_context struct is not
idiomatic. Rightfully, the struct wasn't designed to cater to the needs
of panels with multiple MIPI DSI interfaces. This panel is an oddity
which requires swapping the dsi pointer between calls to
mipi_dsi_generic_write_seq_multi() in order to preserve the exact
behavior implemented using the non-multi variant of the macro.

Signed-off-by: Brigham Campbell <me at brighamcampbell.com>
---
 drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c b/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c
index 5b5082efb282..777a8ab3a397 100644
--- a/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c
+++ b/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c
@@ -161,29 +161,35 @@ static int jdi_setup_symmetrical_split(struct mipi_dsi_device *left,
 
 static int jdi_write_dcdc_registers(struct jdi_panel *jdi)
 {
+	struct mipi_dsi_multi_context dsi_ctx;
+
 	/* Clear the manufacturer command access protection */
-	mipi_dsi_generic_write_seq(jdi->link1, MCS_CMD_ACS_PROT,
+	dsi_ctx.dsi = jdi->link1;
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, MCS_CMD_ACS_PROT,
 				   MCS_CMD_ACS_PROT_OFF);
-	mipi_dsi_generic_write_seq(jdi->link2, MCS_CMD_ACS_PROT,
+	dsi_ctx.dsi = jdi->link2;
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, MCS_CMD_ACS_PROT,
 				   MCS_CMD_ACS_PROT_OFF);
 	/*
-	 * Change the VGH/VGL divide rations to move the noise generated by the
+	 * Change the VGH/VGL divide ratios to move the noise generated by the
 	 * TCONN. This should hopefully avoid interaction with the backlight
 	 * controller.
 	 */
-	mipi_dsi_generic_write_seq(jdi->link1, MCS_PWR_CTRL_FUNC,
+	dsi_ctx.dsi = jdi->link1;
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, MCS_PWR_CTRL_FUNC,
 				   MCS_PWR_CTRL_PARAM1_VGH_330_DIV |
 				   MCS_PWR_CTRL_PARAM1_DEFAULT,
 				   MCS_PWR_CTRL_PARAM2_VGL_410_DIV |
 				   MCS_PWR_CTRL_PARAM2_DEFAULT);
 
-	mipi_dsi_generic_write_seq(jdi->link2, MCS_PWR_CTRL_FUNC,
+	dsi_ctx.dsi = jdi->link2;
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, MCS_PWR_CTRL_FUNC,
 				   MCS_PWR_CTRL_PARAM1_VGH_330_DIV |
 				   MCS_PWR_CTRL_PARAM1_DEFAULT,
 				   MCS_PWR_CTRL_PARAM2_VGL_410_DIV |
 				   MCS_PWR_CTRL_PARAM2_DEFAULT);
 
-	return 0;
+	return dsi_ctx.accum_err;
 }
 
 static int jdi_panel_prepare(struct drm_panel *panel)
-- 
2.49.0