Commit c92ecb4e authored by Heiko Stuebner's avatar Heiko Stuebner Committed by Heiko Stuebner
Browse files

drm/rockchip: dsi: add own additional pclk handling 



In a followup patch, we'll need to access the pclk ourself to enable some
functionality, so get and store it in the rockchip dw-dsi variant as well.

Clocks are refcounted, so possible cascading enablements are
no problem.

Signed-off-by: default avatarHeiko Stuebner <heiko.stuebner@theobroma-systems.com>
Tested-by: default avatarSebastian Fricke <sebastian.fricke@posteo.net>
Acked-by: default avatarHelen Koike <helen.koike@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210210111020.2476369-2-heiko@sntech.de
parent 1f49bf8b

drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c

+8 −0
Original line number Diff line number Diff line
@@ -223,6 +223,7 @@ struct dw_mipi_dsi_rockchip { 
	void __iomem *base;



	struct regmap *grf_regmap;

	struct clk *pclk;

	struct clk *pllref_clk;

	struct clk *grf_clk;

	struct clk *phy_cfg_clk;
@@ -1065,6 +1066,13 @@ static int dw_mipi_dsi_rockchip_probe(struct platform_device *pdev) 
		return ret;

	}



	dsi->pclk = devm_clk_get(dev, "pclk");

	if (IS_ERR(dsi->pclk)) {

		ret = PTR_ERR(dsi->pclk);

		DRM_DEV_ERROR(dev, "Unable to get pclk: %d\n", ret);

		return ret;

	}



	dsi->pllref_clk = devm_clk_get(dev, "ref");

	if (IS_ERR(dsi->pllref_clk)) {

		if (dsi->phy) {