* Missing 'assigned-clocks' in usdhc node of i.MX8MQ/MM/MN dtsi?
@ 2019-09-19 9:56 Schrempf Frieder
2019-09-19 10:01 ` Anson Huang
0 siblings, 1 reply; 2+ messages in thread
From: Schrempf Frieder @ 2019-09-19 9:56 UTC (permalink / raw)
To: Anson Huang, Rob Herring, Mark Rutland, shawnguo, s.hauer,
kernel, Fabio Estevam, leonard.crestez, daniel.lezcano, ping.bai,
daniel.baluta, jun.li, l.stach, abel.vesa, andrew.smirnov, angus,
ccaione, agx, devicetree, linux-arm-kernel, linux-kernel,
NXP Linux Team
Hi,
I wonder why imx8mq.dtsi, imx8mm.dtsi and imx8mn.dtsi have
'assigned-clocks' and 'assigned-clock-rates' set for all usdhc nodes,
except for usdhc2.
Is this on purpose? Is it a flaw?
Thanks,
Frieder
Extract from imx8mm.dtsi:
usdhc1: mmc@30b40000 {
[...]
assigned-clocks = <&clk IMX8MM_CLK_USDHC1>;
assigned-clock-rates = <400000000>;
[...]
};
usdhc2: mmc@30b50000 {
compatible = "fsl,imx8mm-usdhc", "fsl,imx7d-usdhc";
reg = <0x30b50000 0x10000>;
interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_DUMMY>,
<&clk IMX8MM_CLK_NAND_USDHC_BUS>,
<&clk IMX8MM_CLK_USDHC2_ROOT>;
clock-names = "ipg", "ahb", "per";
fsl,tuning-start-tap = <20>;
fsl,tuning-step= <2>;
bus-width = <4>;
status = "disabled";
};
usdhc3: mmc@30b60000 {
[...]
assigned-clocks = <&clk IMX8MM_CLK_USDHC3_ROOT>;
assigned-clock-rates = <400000000>;
[...]
};
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^ permalink raw reply [flat|nested] 2+ messages in thread
* RE: Missing 'assigned-clocks' in usdhc node of i.MX8MQ/MM/MN dtsi?
2019-09-19 9:56 Missing 'assigned-clocks' in usdhc node of i.MX8MQ/MM/MN dtsi? Schrempf Frieder
@ 2019-09-19 10:01 ` Anson Huang
0 siblings, 0 replies; 2+ messages in thread
From: Anson Huang @ 2019-09-19 10:01 UTC (permalink / raw)
To: Schrempf Frieder, Rob Herring, Mark Rutland, shawnguo, s.hauer,
kernel, Fabio Estevam, Leonard Crestez, daniel.lezcano,
Jacky Bai, Daniel Baluta, Jun Li, l.stach, Abel Vesa,
andrew.smirnov, angus, ccaione, agx, devicetree,
linux-arm-kernel, linux-kernel, dl-linux-imx
Hi, Schrempf
> Hi,
>
> I wonder why imx8mq.dtsi, imx8mm.dtsi and imx8mn.dtsi have 'assigned-
> clocks' and 'assigned-clock-rates' set for all usdhc nodes, except for usdhc2.
>
> Is this on purpose? Is it a flaw?
I don't think it is on purpose, it should be a flaw, I will double check with our usdhc owner,
if it is indeed a flaw, we will summit a patch to fix it, thanks for reminder.
Thanks,
Anson
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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2019-09-19 10:01 ` Anson Huang
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