[PATCH v4 21/80] drm/omap: dsi: use pixel-format and mode from attach

[Tomi Valkeinen <tomi.valkeinen@xxxxxx>]

From: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>

In order to reduce the amount of custom functionality, this moves
handling of pixel format and DSI mode from set_config() to dsi
attach.

Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
 .../gpu/drm/omapdrm/displays/panel-dsi-cm.c   |  2 --
 drivers/gpu/drm/omapdrm/dss/dsi.c             | 31 ++++++++++++-------
 2 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
index cfc31b777bae..78498d863ad5 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
@@ -549,8 +549,6 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
 	u8 id1, id2, id3;
 	int r;
 	struct omap_dss_dsi_config dsi_config = {
-		.mode = OMAP_DSS_DSI_CMD_MODE,
-		.pixel_format = MIPI_DSI_FMT_RGB888,
 		.vm = &ddata->vm,
 		.hs_clk_min = 150000000,
 		.hs_clk_max = 300000000,
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 25d2af1e1a00..25122f1eaa4b 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -4578,24 +4578,19 @@ static int dsi_set_config(struct omap_dss_device *dssdev,
 {
 	struct dsi_data *dsi = to_dsi_data(dssdev);
 	struct dsi_clk_calc_ctx ctx;
+	struct omap_dss_dsi_config cfg = *config;
 	bool ok;
 	int r;
 
 	mutex_lock(&dsi->lock);
 
-	dsi->pix_fmt = config->pixel_format;
-	dsi->mode = config->mode;
+	cfg.mode = dsi->mode;
+	cfg.pixel_format = dsi->pix_fmt;
 
-	if (mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt) < 0) {
-		DSSERR("invalid pixel format\n");
-		r = -EINVAL;
-		goto err;
-	}
-
-	if (config->mode == OMAP_DSS_DSI_VIDEO_MODE)
-		ok = dsi_vm_calc(dsi, config, &ctx);
+	if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE)
+		ok = dsi_vm_calc(dsi, &cfg, &ctx);
 	else
-		ok = dsi_cm_calc(dsi, config, &ctx);
+		ok = dsi_cm_calc(dsi, &cfg, &ctx);
 
 	if (!ok) {
 		DSSERR("failed to find suitable DSI clock settings\n");
@@ -4606,7 +4601,7 @@ static int dsi_set_config(struct omap_dss_device *dssdev,
 	dsi_pll_calc_dsi_fck(dsi, &ctx.dsi_cinfo);
 
 	r = dsi_lp_clock_calc(ctx.dsi_cinfo.clkout[HSDIV_DSI],
-		config->lp_clk_min, config->lp_clk_max, &dsi->user_lp_cinfo);
+		cfg.lp_clk_min, cfg.lp_clk_max, &dsi->user_lp_cinfo);
 	if (r) {
 		DSSERR("failed to find suitable DSI LP clock settings\n");
 		goto err;
@@ -4784,7 +4779,19 @@ static int omap_dsi_host_attach(struct mipi_dsi_host *host,
 		return -EBUSY;
 	}
 
+	if (mipi_dsi_pixel_format_to_bpp(client->format) < 0) {
+		DSSERR("invalid pixel format\n");
+		return -EINVAL;
+	}
+
 	dsi->vc[channel].dest = client;
+
+	dsi->pix_fmt = client->format;
+	if (client->mode_flags & MIPI_DSI_MODE_VIDEO)
+		dsi->mode = OMAP_DSS_DSI_VIDEO_MODE;
+	else
+		dsi->mode = OMAP_DSS_DSI_CMD_MODE;
+
 	return 0;
 }
 
-- 
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