From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linux.HWI@garmin.com (J.D. Schroeder) Date: Mon, 2 May 2016 12:12:02 -0500 Subject: [PATCH v2 2/3] ARM: DRA7x: dts: Update the OSC_32K_CLK frequency In-Reply-To: <1462209123-7332-1-git-send-email-Linux.HWI@garmin.com> References: <20160427171658.GA5995@atomide.com> <1462209123-7332-1-git-send-email-Linux.HWI@garmin.com> Message-ID: <1462209123-7332-3-git-send-email-Linux.HWI@garmin.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: "J.D. Schroeder" This commit updates the OSC_32K_CLK (secure_32k_clk_src_ck) frequency from the precise 32kHz frequency (i.e., 32.768 kHz) to a more accurate frequency of ~34.6 kHz. Actual measured frequencies of the clock vary from processor to processor anywhere from 34.4 kHz up to 34.8 kHz. Note that the ~34 kHz frequency clock is generated internally by the processor, not an input to the processor. This change makes it more clear that the consumer of the secure_32k_clk_src_ck will not get a precise 32.768 kHz frequency output. Signed-off-by: J.D. Schroeder Reviewed-by: Trenton Andres --- arch/arm/boot/dts/dra7xx-clocks.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi index 3f0c61d..f7ec976 100644 --- a/arch/arm/boot/dts/dra7xx-clocks.dtsi +++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi @@ -95,7 +95,7 @@ secure_32k_clk_src_ck: secure_32k_clk_src_ck { #clock-cells = <0>; compatible = "fixed-clock"; - clock-frequency = <32768>; + clock-frequency = <34600>; /* approximate frequency */ }; sys_clk32_crystal_ck: sys_clk32_crystal_ck { -- 1.9.1