From 85ab00cd5a66d6c665eeae72a8903c8a14b85859 Mon Sep 17 00:00:00 2001 From: Ondrej Jirman Date: Sun, 9 Jun 2024 14:30:12 +0200 Subject: [PATCH 260/480] drm: rockchip: dw-mipi-dsi-rockchip: Fix ISP1 PHY initialization After suspend/resume cycle, ISP1 would stop receiving data. Re-initializing DPHY during PHY power on fixes the issue. Signed-off-by: Ondrej Jirman --- drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c index 3398160ad75e..471851879947 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c @@ -1245,6 +1245,14 @@ static int dw_mipi_dsi_dphy_power_on(struct phy *phy) goto err_phy_cfg_clk; } + if (dsi->cdata->dphy_rx_init) { + ret = dsi->cdata->dphy_rx_init(phy); + if (ret < 0) { + DRM_DEV_ERROR(dsi->dev, "hardware-specific phy init failed: %d\n", ret); + goto err_pwr_on; + } + } + /* do soc-variant specific init */ if (dsi->cdata->dphy_rx_power_on) { ret = dsi->cdata->dphy_rx_power_on(phy); -- 2.49.0