From: Rui Miguel Silva <rui.silva@linaro.org> To: mchehab@kernel.org, sakari.ailus@linux.intel.com, Steve Longerbeam <slongerbeam@gmail.com>, Philipp Zabel <p.zabel@pengutronix.de>, Rob Herring <robh+dt@kernel.org> Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Ryan Harkin <ryan.harkin@linaro.org>, Rui Miguel Silva <rui.silva@linaro.org>, Fabio Estevam <fabio.estevam@nxp.com>, Shawn Guo <shawnguo@kernel.org>, linux-clk@vger.kernel.org, linux-media@vger.kernel.org Subject: [PATCH v2 04/15] clk: imx7d: reset parent for mipi csi root Date: Mon, 23 Apr 2018 14:47:39 +0100 [thread overview] Message-ID: <20180423134750.30403-5-rui.silva@linaro.org> (raw) In-Reply-To: <20180423134750.30403-1-rui.silva@linaro.org> To guarantee that we do not get Overflow in image FIFO the outer bandwidth has to be faster than inputer bandwidth. For that it must be possible to set a faster frequency clock. So set new parent to sys_pfd3 clock for the mipi csi block. Cc: linux-clk@vger.kernel.org Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> --- drivers/clk/imx/clk-imx7d.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c index f7f4db2e6fa6..9a1a18ceb132 100644 --- a/drivers/clk/imx/clk-imx7d.c +++ b/drivers/clk/imx/clk-imx7d.c @@ -891,6 +891,9 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node) clk_set_parent(clks[IMX7D_PLL_AUDIO_MAIN_BYPASS], clks[IMX7D_PLL_AUDIO_MAIN]); clk_set_parent(clks[IMX7D_PLL_VIDEO_MAIN_BYPASS], clks[IMX7D_PLL_VIDEO_MAIN]); + clk_set_parent(clks[IMX7D_MIPI_CSI_ROOT_SRC], + clks[IMX7D_PLL_SYS_PFD3_CLK]); + /* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */ clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]); -- 2.17.0
WARNING: multiple messages have this Message-ID (diff)
From: Rui Miguel Silva <rui.silva@linaro.org> To: mchehab@kernel.org, sakari.ailus@linux.intel.com, Steve Longerbeam <slongerbeam@gmail.com>, Philipp Zabel <p.zabel@pengutronix.de>, Rob Herring <robh+dt@kernel.org> Cc: linux-media@vger.kernel.org, devel@driverdev.osuosl.org, Shawn Guo <shawnguo@kernel.org>, Fabio Estevam <fabio.estevam@nxp.com>, devicetree@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Ryan Harkin <ryan.harkin@linaro.org>, Rui Miguel Silva <rui.silva@linaro.org>, linux-clk@vger.kernel.org Subject: [PATCH v2 04/15] clk: imx7d: reset parent for mipi csi root Date: Mon, 23 Apr 2018 14:47:39 +0100 [thread overview] Message-ID: <20180423134750.30403-5-rui.silva@linaro.org> (raw) In-Reply-To: <20180423134750.30403-1-rui.silva@linaro.org> To guarantee that we do not get Overflow in image FIFO the outer bandwidth has to be faster than inputer bandwidth. For that it must be possible to set a faster frequency clock. So set new parent to sys_pfd3 clock for the mipi csi block. Cc: linux-clk@vger.kernel.org Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> --- drivers/clk/imx/clk-imx7d.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c index f7f4db2e6fa6..9a1a18ceb132 100644 --- a/drivers/clk/imx/clk-imx7d.c +++ b/drivers/clk/imx/clk-imx7d.c @@ -891,6 +891,9 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node) clk_set_parent(clks[IMX7D_PLL_AUDIO_MAIN_BYPASS], clks[IMX7D_PLL_AUDIO_MAIN]); clk_set_parent(clks[IMX7D_PLL_VIDEO_MAIN_BYPASS], clks[IMX7D_PLL_VIDEO_MAIN]); + clk_set_parent(clks[IMX7D_MIPI_CSI_ROOT_SRC], + clks[IMX7D_PLL_SYS_PFD3_CLK]); + /* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */ clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]); -- 2.17.0
next prev parent reply other threads:[~2018-04-23 13:47 UTC|newest] Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-04-23 13:47 [PATCH v2 00/15] media: staging/imx7: add i.MX7 media driver Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 01/15] media: staging/imx: add support to media dev for no IPU systems Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 02/15] media: staging/imx7: add imx7 CSI subdev driver Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 03/15] clk: imx7d: fix mipi dphy div parent Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-05-01 22:11 ` Stephen Boyd 2018-05-01 22:11 ` Stephen Boyd 2018-05-03 1:08 ` Shawn Guo 2018-05-03 1:08 ` Shawn Guo 2018-05-03 1:50 ` A.s. Dong 2018-05-03 1:50 ` A.s. Dong 2018-05-03 1:50 ` A.s. Dong 2018-04-23 13:47 ` Rui Miguel Silva [this message] 2018-04-23 13:47 ` [PATCH v2 04/15] clk: imx7d: reset parent for mipi csi root Rui Miguel Silva 2018-05-03 2:27 ` Shawn Guo 2018-05-03 2:27 ` Shawn Guo 2018-04-23 13:47 ` [PATCH v2 05/15] media: staging/imx7: add MIPI CSI-2 receiver subdev for i.MX7 Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 06/15] media: staging/imx: add imx7 capture subsystem Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 15:48 ` Philipp Zabel 2018-04-23 15:48 ` Philipp Zabel 2018-04-24 8:46 ` Rui Miguel Silva 2018-04-24 8:46 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 07/15] ARM: dts: increase default cma size to 40MB Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-05-03 2:40 ` Shawn Guo 2018-05-03 2:40 ` Shawn Guo 2018-04-23 13:47 ` [PATCH v2 08/15] media: dt-bindings: add bindings for i.MX7 media driver Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-27 19:06 ` Rob Herring 2018-04-27 19:06 ` Rob Herring 2018-05-07 16:28 ` Rui Miguel Silva 2018-05-07 16:28 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 09/15] ARM: dts: imx7s: add mipi phy power domain Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 10/15] ARM: dts: imx7s: add multiplexer controls Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-05-03 3:05 ` Shawn Guo 2018-05-03 3:05 ` Shawn Guo 2018-04-23 13:47 ` [PATCH v2 11/15] ARM: dts: imx7: Add video mux, csi and mipi_csi and connections Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 15:46 ` Philipp Zabel 2018-04-23 15:46 ` Philipp Zabel 2018-04-24 8:50 ` Rui Miguel Silva 2018-04-24 8:50 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 12/15] ARM: dts: imx7s: add capture subsystem Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 13/15] ARM: dts: imx7s-warp: add ov2680 sensor node Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 14/15] media: imx7.rst: add documentation for i.MX7 media driver Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva 2018-04-23 13:47 ` [PATCH v2 15/15] media: staging/imx: add i.MX7 entries to TODO file Rui Miguel Silva 2018-04-23 13:47 ` Rui Miguel Silva
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