diff options
| author | Cristian Ciocaltea <cristian.ciocaltea@collabora.com> | 2025-09-03 21:51:03 +0300 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2025-10-15 22:28:07 +0200 |
| commit | 33ea4d520fbda505e2cfe5b36ebf522de1f3f5e9 (patch) | |
| tree | f0c4fe944fef40519c0297c0a1b588aa08bbd1e2 | |
| parent | 9baa02327adf2b1e919e95af23036102cfd0133f (diff) | |
drm/rockchip: dw_hdmi_qp: Provide ref clock rate in dw_hdmi_qp_plat_data
In order to support correct initialization of the timer base in the HDMI
QP IP block, setup platform data to include the required reference clock
rate.
While at it, ensure plat_data is zero-initialized in
dw_hdmi_qp_rockchip_bind().
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250903-rk3588-hdmi-cec-v4-5-fa25163c4b08@collabora.com
| -rw-r--r-- | drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c index 9191a74a568f..931343b072ad 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c @@ -429,14 +429,15 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); + struct dw_hdmi_qp_plat_data plat_data = {}; const struct rockchip_hdmi_qp_cfg *cfg; - struct dw_hdmi_qp_plat_data plat_data; struct drm_device *drm = data; struct drm_connector *connector; struct drm_encoder *encoder; struct rockchip_hdmi_qp *hdmi; struct resource *res; struct clk_bulk_data *clks; + struct clk *ref_clk; int ret, irq, i; if (!pdev->dev.of_node) @@ -506,6 +507,14 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master, if (ret < 0) return dev_err_probe(hdmi->dev, ret, "Failed to get clocks\n"); + ref_clk = clk_get(hdmi->dev, "ref"); + if (IS_ERR(ref_clk)) + return dev_err_probe(hdmi->dev, PTR_ERR(ref_clk), + "Failed to get ref clock\n"); + + plat_data.ref_clk_rate = clk_get_rate(ref_clk); + clk_put(ref_clk); + hdmi->enable_gpio = devm_gpiod_get_optional(hdmi->dev, "enable", GPIOD_OUT_HIGH); if (IS_ERR(hdmi->enable_gpio)) |