From: Heiko Stuebner <heiko@sntech.de>
To: dri-devel@lists.freedesktop.org
Cc: devicetree@vger.kernel.org, dafna.hirschfeld@collabora.com,
heiko@sntech.de, cmuellner@linux.com, hjc@rock-chips.com,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
helen.koike@collabora.com, robh+dt@kernel.org,
sebastian.fricke@posteo.net,
Heiko Stuebner <heiko.stuebner@theobroma-systems.com>,
ezequiel@collabora.com, linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org
Subject: [PATCH 1/6] drm/rockchip: dsi: add own additional pclk handling
Date: Tue, 2 Feb 2021 15:56:27 +0100 [thread overview]
Message-ID: <20210202145632.1263136-2-heiko@sntech.de> (raw)
In-Reply-To: <20210202145632.1263136-1-heiko@sntech.de>
From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
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>
---
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 24a71091759c..18e112e30f6e 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;
@@ -1051,6 +1052,13 @@ 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) {
--
2.29.2
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next prev parent reply other threads:[~2021-02-02 14:57 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-02 14:56 [PATCH 0/6] Support second Image Signal Processor on rk3399 Heiko Stuebner
2021-02-02 14:56 ` Heiko Stuebner [this message]
2021-02-02 14:56 ` [PATCH 2/6] dt-bindings: display: rockchip-dsi: add optional #phy-cells property Heiko Stuebner
2021-02-09 21:03 ` Rob Herring
2021-02-02 14:56 ` [PATCH 3/6] drm/rockchip: dsi: add ability to work as a phy instead of full dsi Heiko Stuebner
2021-02-02 14:56 ` [PATCH 4/6] arm64: dts: rockchip: add #phy-cells to mipi-dsi1 Heiko Stuebner
2021-02-02 14:56 ` [PATCH 5/6] arm64: dts: rockchip: add cif clk-control pinctrl for rk3399 Heiko Stuebner
2021-02-02 14:56 ` [PATCH 6/6] arm64: dts: rockchip: add isp1 node on rk3399 Heiko Stuebner
2021-02-03 18:14 ` [PATCH 0/6] Support second Image Signal Processor " Sebastian Fricke
2021-02-03 19:54 ` Heiko Stübner
2021-02-05 6:43 ` Sebastian Fricke
2021-02-05 8:15 ` Heiko Stübner
2021-02-05 14:55 ` Heiko Stübner
2021-02-10 11:15 ` Heiko Stübner
2021-02-11 5:25 ` Sebastian Fricke
2021-02-11 14:42 ` Heiko Stübner
2021-02-13 11:19 ` Sebastian Fricke
2021-02-13 22:33 ` Heiko Stuebner
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