[PATCH 03/16] drm: renesas: rzg2l_mipi_dsi: Add activation_dly to hw_info

From: Biju

Date: Sat Jul 04 2026 - 05:34:47 EST


From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>

Move the post-reset activation delay into the hw_info structure as
activation_dly, allowing SoC-specific values to be defined per
compatible. This prepares the driver for supporting SoCs that require a
different delay after reset deassertion.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index 2128fd16ebc9..1538eeece2b5 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -59,6 +59,7 @@ struct rzg2l_mipi_dsi_hw_info {
u32 dphyctrl0_init_val;
unsigned long min_dclk;
unsigned long max_dclk;
+ u16 activation_dly;
u8 features;
};

@@ -806,7 +807,7 @@ static int rzg2l_mipi_dsi_startup(struct rzg2l_mipi_dsi *dsi,
if (ret < 0)
goto err_phy;

- fsleep(1000);
+ fsleep(dsi->info->activation_dly);
}

return 0;
@@ -1534,6 +1535,7 @@ static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi_dsi_info = {
DSIDPHYCTRL0_RE_VDD_DETVCCQLV18 | DSIDPHYCTRL0_EN_BGR,
.min_dclk = 5803,
.max_dclk = 148500,
+ .activation_dly = 1000,
};

static const struct of_device_id rzg2l_mipi_dsi_of_table[] = {
--
2.43.0