From: Tomasz Figa <tomasz.figa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Anton Tikhomirov
<av.tikhomirov-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
'Vivek Gautam'
<gautam.vivek-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
balbi-l0cyMroinI0@public.gmane.org,
kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
pawel.moll-5wv7dgnIgG8@public.gmane.org,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
kishon-l0cyMroinI0@public.gmane.org
Subject: Re: [PATCH v2 1/4] dwc3: exynos: Add support for SCLK present on Exynos7
Date: Tue, 14 Oct 2014 00:51:06 +0200 [thread overview]
Message-ID: <543C575A.1030105@gmail.com> (raw)
In-Reply-To: <00f101cfe6a1$d772c5a0$865850e0$%tikhomirov-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Hi Anton,
On 13.10.2014 06:54, Anton Tikhomirov wrote:
> Hi Vivek,
>
>> Exynos7 also has a separate special gate clock going to the IP
>> apart from the usual AHB clock. So add support for the same.
>
> As we discussed before, Exynos7 SoCs have 7 clocks to be controlled
> by the driver. Adding only sclk is not enough.
>
I'm quite interested in this discussion. Has it happened on mailing lists?
In general, previous SoCs also gave the possibility of controlling all
the bus clocks separately, in addition to bulk gates, but there was no
real advantage in using those, while burdening the clock tree with
numerous clocks. Isn't Exynos7 similar in this aspect?
Best regards,
Tomasz
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next prev parent reply other threads:[~2014-10-13 22:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-07 10:19 [PATCH v2 0/4] usb: dwc3/phy-exynos5-usbdrd: Extend support to Exynos7 Vivek Gautam
2014-10-07 10:19 ` [PATCH v2 1/4] dwc3: exynos: Add support for SCLK present on Exynos7 Vivek Gautam
2014-10-07 14:11 ` Felipe Balbi
2014-10-08 3:01 ` Vivek Gautam
2014-10-13 4:54 ` Anton Tikhomirov
2014-10-13 22:44 ` Felipe Balbi
2014-10-14 4:55 ` Vivek Gautam
2014-10-15 14:50 ` Felipe Balbi
[not found] ` <00f101cfe6a1$d772c5a0$865850e0$%tikhomirov-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-10-13 22:51 ` Tomasz Figa [this message]
2014-10-14 1:26 ` Anton Tikhomirov
2014-10-14 4:53 ` Vivek Gautam
[not found] ` <1412677176-3850-1-git-send-email-gautam.vivek-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-10-07 10:19 ` [PATCH v2 2/4] phy: exynos5-usbdrd: Add pipe-clk and utmi-clk support Vivek Gautam
2014-10-13 5:02 ` Anton Tikhomirov
2014-10-22 11:53 ` Kishon Vijay Abraham I
2014-10-07 10:19 ` [PATCH v2 3/4] phy: exynos5-usbdrd: Add facility for VBUS-BOOST-5V supply Vivek Gautam
2014-10-13 5:06 ` Anton Tikhomirov
2014-10-13 5:11 ` Vivek Gautam
2014-10-07 10:19 ` [PATCH v2 4/4] phy: exynos7-usbdrd: Update dependency for ARCH_EXYNOS Vivek Gautam
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