From: Eric Anholt <eric@anholt.net>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-rpi-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stephen Warren <swarren@wwwdotorg.org>,
Lee Jones <lee@kernel.org>,
devicetree@vger.kernel.org, Eric Anholt <eric@anholt.net>
Subject: [PATCH 7/7] ARM: bcm2835: Tie SPI clock to the core clock rate.
Date: Mon, 18 May 2015 12:43:39 -0700 [thread overview]
Message-ID: <1431978219-14226-8-git-send-email-eric@anholt.net> (raw)
In-Reply-To: <1431978219-14226-1-git-send-email-eric@anholt.net>
We were previously using a fixed clock declared in the 2835 DT, but
it's actually the core clock, and it might not be the same if you had
adjusted it using the firmware's config.txt.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
This is the only patch in the series I haven't really tested, since I
don't have any SPI devices.
arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 53285a3..994c8e7 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -69,3 +69,7 @@
<&firmware_clocks RPI_CLOCK_CORE>;
clock-names = "uartclk", "apb_pclk";
};
+
+&spi {
+ clocks = <&firmware_clocks RPI_CLOCK_CORE>;
+};
--
2.1.4
prev parent reply other threads:[~2015-05-18 19:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-18 19:43 Raspberry Pi DT clocks series Eric Anholt
2015-05-18 19:43 ` [PATCH 1/7] dt/bindings: Add binding for the Raspberry Pi clock provider Eric Anholt
2015-05-28 21:46 ` Stephen Warren
2015-05-18 19:43 ` [PATCH 2/7] ARM: bcm2835: Add a Raspberry Pi-specific clock driver Eric Anholt
2015-05-19 3:05 ` Baruch Siach
2015-05-28 19:02 ` [PATCH 2/7 v2] " Eric Anholt
2015-05-28 22:02 ` [PATCH 2/7] " Stephen Warren
[not found] ` <55679085.6040402-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2015-05-28 22:48 ` Stephen Boyd
[not found] ` <20150528224828.GI24204-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-05-29 19:30 ` Eric Anholt
2015-05-29 21:02 ` Eric Anholt
[not found] ` <87h9qvcd1i.fsf-omZaPlIz5HhaEpDpdNBo/KxOck334EZe@public.gmane.org>
2015-06-05 2:56 ` Stephen Warren
2015-05-29 19:09 ` Eric Anholt
2015-05-18 19:43 ` [PATCH 4/7] ARM: bcm2835: Drop never-used clock-frequency property of uart0 Eric Anholt
[not found] ` <1431978219-14226-1-git-send-email-eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
2015-05-18 19:43 ` [PATCH 3/7] ARM: bcm2835: Add DT for the firmware clocks driver Eric Anholt
2015-05-18 19:43 ` [PATCH 5/7] ARM: bcm2835: Drop the fixed sys_pclk Eric Anholt
[not found] ` <1431978219-14226-6-git-send-email-eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
2015-05-28 22:05 ` Stephen Warren
[not found] ` <55679125.6000607-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2015-05-29 17:44 ` Eric Anholt
2015-05-18 19:43 ` [PATCH 6/7] ARM: bcm2835: Use the RPi firmware clocks for uart Eric Anholt
2015-05-18 19:43 ` Eric Anholt [this message]
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