linux-kernel - [PATCH 3/4] drm/msm/dsi: Allow all bpc values

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Message-ID: <20250203181436.87785-4-danila@jiaxyga.com>
Date: Mon,  3 Feb 2025 21:14:26 +0300
From: Danila Tikhonov <danila@...xyga.com>
To: neil.armstrong@...aro.org,
	quic_jesszhan@...cinc.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	andersson@...nel.org,
	konradybcio@...nel.org,
	robdclark@...il.com,
	quic_abhinavk@...cinc.com,
	dmitry.baryshkov@...aro.org,
	sean@...rly.run,
	marijn.suijten@...ainline.org,
	jonathan@...ek.ca,
	jun.nie@...aro.org,
	fekz115@...il.com
Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	freedreno@...ts.freedesktop.org,
	linux@...nlining.org,
	~postmarketos/upstreaming@...ts.sr.ht,
	Danila Tikhonov <danila@...xyga.com>
Subject: [PATCH 3/4] drm/msm/dsi: Allow all bpc values

From: Eugene Lepshy <fekz115@...il.com>

DRM DSC helper has parameters for various bpc values other than 8:
(8/10/12/14/16).

Remove this guard.

Signed-off-by: Eugene Lepshy <fekz115@...il.com>
Signed-off-by: Danila Tikhonov <danila@...xyga.com>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 007311c21fda..d182af7bbb81 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1767,11 +1767,6 @@ static int dsi_populate_dsc_params(struct msm_dsi_host *msm_host, struct drm_dsc
 		return -EINVAL;
 	}
 
-	if (dsc->bits_per_component != 8) {
-		DRM_DEV_ERROR(&msm_host->pdev->dev, "DSI does not support bits_per_component != 8 yet\n");
-		return -EOPNOTSUPP;
-	}
-
 	dsc->simple_422 = 0;
 	dsc->convert_rgb = 1;
 	dsc->vbr_enable = 0;
@@ -1779,7 +1774,7 @@ static int dsi_populate_dsc_params(struct msm_dsi_host *msm_host, struct drm_dsc
 	drm_dsc_set_const_params(dsc);
 	drm_dsc_set_rc_buf_thresh(dsc);
 
-	/* handle only bpp = bpc = 8, pre-SCR panels */
+	/* handle only pre-SCR panels */
 	ret = drm_dsc_setup_rc_params(dsc, DRM_DSC_1_1_PRE_SCR);
 	if (ret) {
 		DRM_DEV_ERROR(&msm_host->pdev->dev, "could not find DSC RC parameters\n");
-- 
2.48.1