From: Jagan Teki <jagan@amarulasolutions.com>
To: Yong Deng <yong.deng@magewell.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>, Chen-Yu Tsai <wens@csie.org>,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-sunxi <linux-sunxi@googlegroups.com>,
linux-amarula@amarulasolutions.com,
Michael Trimarchi <michael@amarulasolutions.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v3 3/6] media: sun6i: Set 300MHz mod clock for A64
Date: Mon, 10 Dec 2018 17:22:43 +0530 [thread overview]
Message-ID: <20181210115246.8188-4-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20181210115246.8188-1-jagan@amarulasolutions.com>
The default CSI_SCLK seems unable to drive the sensor to capture
the image, so update it to working clock rate 300MHz for A64.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
index bbe45e893722..4b872800b244 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
@@ -822,6 +822,11 @@ static int sun6i_csi_resource_request(struct sun6i_csi_dev *sdev,
return PTR_ERR(sdev->clk_mod);
}
+ /* A64 need 300MHz mod clock to operate properly */
+ if (of_device_is_compatible(pdev->dev.of_node,
+ "allwinner,sun50i-a64-csi"))
+ clk_set_rate_exclusive(sdev->clk_mod, 300000000);
+
sdev->clk_ram = devm_clk_get(&pdev->dev, "ram");
if (IS_ERR(sdev->clk_ram)) {
dev_err(&pdev->dev, "Unable to acquire dram-csi clock\n");
--
2.18.0.321.gffc6fa0e3
next prev parent reply other threads:[~2018-12-10 11:53 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 11:52 [PATCH v3 0/6] media/sun6i: Allwinner A64 CSI support Jagan Teki
2018-12-10 11:52 ` [PATCH v3 1/6] dt-bindings: media: sun6i: Add A64 CSI compatible Jagan Teki
2018-12-10 23:24 ` Rob Herring
2018-12-10 11:52 ` [PATCH v3 2/6] media: sun6i: Add A64 compatible support Jagan Teki
2018-12-11 15:43 ` Maxime Ripard
2018-12-10 11:52 ` Jagan Teki [this message]
2018-12-11 15:44 ` [PATCH v3 3/6] media: sun6i: Set 300MHz mod clock for A64 Maxime Ripard
2018-12-11 15:50 ` Jagan Teki
2018-12-10 11:52 ` [PATCH v3 4/6] arm64: dts: allwinner: a64: Add A64 CSI controller Jagan Teki
2018-12-10 11:52 ` [PATCH v3 5/6] arm64: dts: allwinner: a64: Add pinmux setting for CSI MCLK on PE1 Jagan Teki
2018-12-10 11:52 ` [PATCH v3 6/6] arm64: dts: allwinner: a64-amarula-relic: Add OV5640 camera node Jagan Teki
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