diff options
| author | Heiko Stuebner <heiko.stuebner@theobroma-systems.com> | 2021-02-10 14:10:15 +0300 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2021-07-25 18:05:40 +0300 |
| commit | c92ecb4eac76d323a793014b9bf9f39be491c606 (patch) | |
| tree | fb56b228639b53b287bf6a8a987ab81b38d86f45 /drivers/gpu/drm/rockchip | |
| parent | 1f49bf8b6aec78568478647f90367f57fc4f1644 (diff) | |
| download | linux-c92ecb4eac76d323a793014b9bf9f39be491c606.tar.xz | |
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: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Tested-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Acked-by: Helen Koike <helen.koike@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210210111020.2476369-2-heiko@sntech.de
Diffstat (limited to 'drivers/gpu/drm/rockchip')
| -rw-r--r-- | drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c index ec7729d18cb8..f3897de0c0b8 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c @@ -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) { |