[PATCH v4 4/5] drm/msm/dsi: add DSI version >= comparison helper
From: Alexander Koskovich <hidden>
Date: 2026-03-21 07:53:07
Also in:
dri-devel, linux-amlogic, linux-arm-msm, lkml
Subsystem:
drm driver for qualcomm display hardware, drm drivers, the rest · Maintainers:
Rob Clark, Dmitry Baryshkov, David Airlie, Simona Vetter, Linus Torvalds
Add a helper for checking if the DSI hardware version is greater than or equal to a given version, for use in a future change. Reviewed-by: Konrad Dybcio <redacted> Reviewed-by: Dmitry Baryshkov <redacted> Signed-off-by: Alexander Koskovich <redacted> --- drivers/gpu/drm/msm/dsi/dsi_host.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index db6da99375a1..b55ffe2fdec3 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c@@ -782,13 +782,21 @@ static void dsi_ctrl_disable(struct msm_dsi_host *msm_host) dsi_write(msm_host, REG_DSI_CTRL, 0); } +static bool msm_dsi_host_version_geq(struct msm_dsi_host *msm_host, + u32 major, u32 minor) +{ + return msm_host->cfg_hnd->major > major || + (msm_host->cfg_hnd->major == major && + msm_host->cfg_hnd->minor >= minor); +} + bool msm_dsi_host_is_wide_bus_enabled(struct mipi_dsi_host *host) { struct msm_dsi_host *msm_host = to_msm_dsi_host(host); return msm_host->dsc && - (msm_host->cfg_hnd->major == MSM_DSI_VER_MAJOR_6G && - msm_host->cfg_hnd->minor >= MSM_DSI_6G_VER_MINOR_V2_5_0); + msm_dsi_host_version_geq(msm_host, MSM_DSI_VER_MAJOR_6G, + MSM_DSI_6G_VER_MINOR_V2_5_0); } static void dsi_ctrl_enable(struct msm_dsi_host *msm_host,
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2.53.0