From: David Jander <david@protonic.nl>
To: barebox@lists.infradead.org
Cc: David Jander <david@protonic.nl>
Subject: [PATCH] drivers: clk: clk-imx6.c: Don't gate LDB and IPUs
Date: Fri, 3 Mar 2017 08:33:53 +0100 [thread overview]
Message-ID: <20170303073353.27248-1-david@protonic.nl> (raw)
Depending on CONFIG_DRIVER_VIDEO_IMX_IPUV3 to decide whether to
gate IPU clocks or not is rather fragile. Any inadvertent
dependency on the IPU (like setting the NoC AQoS registers for
i.MX6QP) will result in a freeze if CONFIG_DRIVER_VIDEO_IMX_IPUV3
is disabled.
Signed-off-by: David Jander <david@protonic.nl>
---
drivers/clk/imx/clk-imx6.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/clk/imx/clk-imx6.c b/drivers/clk/imx/clk-imx6.c
index 8ac43be..d0571bc 100644
--- a/drivers/clk/imx/clk-imx6.c
+++ b/drivers/clk/imx/clk-imx6.c
@@ -494,10 +494,7 @@ static int imx6_ccm_probe(struct device_d *dev)
writel(0xffffffff, ccm_base + CCGR0);
writel(0xf0ffffff, ccm_base + CCGR1); /* gate GPU3D, GPU2D */
writel(0xffffffff, ccm_base + CCGR2);
- if (IS_ENABLED(CONFIG_DRIVER_VIDEO_IMX_IPUV3))
- writel(0x3fffffff, ccm_base + CCGR3); /* gate OpenVG */
- else
- writel(0x3fff0000, ccm_base + CCGR3); /* gate OpenVG, LDB, IPU1, IPU2 */
+ writel(0x3fffffff, ccm_base + CCGR3); /* gate OpenVG */
if (IS_ENABLED(CONFIG_PCI_IMX6))
writel(0xffffffff, ccm_base + CCGR4);
else
--
2.9.3
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next reply other threads:[~2017-03-03 7:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-03 7:33 David Jander [this message]
2017-03-09 7:18 ` Sascha Hauer
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