diff options
| author | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2025-10-29 00:28:13 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> | 2025-10-29 11:32:11 +0200 |
| commit | c979eb60a6f358380fffd74634b956d7ab04fa4c (patch) | |
| tree | 0430fe391282ef69a9c5996556e7c3df47005f81 /drivers/gpu | |
| parent | 4723455e4b893099f5a1892ef0df899a9341abab (diff) | |
drm/rcar-du: dsi: Document PHTR TESTDOUT as bitfield
The register PHTR bitfield TESTDOUT is not a single bit, but a
bitfield. Add a MASK macro and a _TEST bitfield value, which is
used by the driver to poll for completion. No functional change.
Reviewed-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20251028232959.109936-4-marek.vasut+renesas@mailbox.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h | 3 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c index 5c73a513f678..c24721a1eddf 100644 --- a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c @@ -316,8 +316,8 @@ rcar_mipi_dsi_post_init_phtw_v4h(struct rcar_mipi_dsi *dsi, WRITE_PHTW(0x01020100, 0x00000180); ret = read_poll_timeout(rcar_mipi_dsi_read, status, - status & PHTR_TEST, 2000, 10000, false, - dsi, PHTR); + status & PHTR_TESTDOUT_TEST, + 2000, 10000, false, dsi, PHTR); if (ret < 0) { dev_err(dsi->dev, "failed to test PHTR\n"); return ret; diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h index b8a719a13c00..62341416ac6e 100644 --- a/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h @@ -293,7 +293,8 @@ #define PHTW_TESTDIN_CODE(x) (((x) & 0xff) << 0) #define PHTR 0x1038 -#define PHTR_TEST (1 << 16) +#define PHTR_TESTDOUT (0xff << 16) +#define PHTR_TESTDOUT_TEST (1 << 16) #define PHTC 0x103c #define PHTC_TESTCLR (1 << 0) |