[PATCH v4 2/3] clk: imx: imx8mp: add shared clk gate for usb suspend clk

Abel Vesa abel.vesa at linaro.org
Mon Jan 9 02:52:17 PST 2023


On 22-10-27 10:39:16, Stephen Boyd wrote:
> Quoting Jun Li (2022-10-19 02:26:00)
> > Hi Stephen,
> > 
> > > -----Original Message-----
> > > From: Jun Li <jun.li at nxp.com>
> > > Sent: Friday, September 30, 2022 10:54 PM
> > > To: sboyd at kernel.org; abelvesa at kernel.org
> > > Cc: robh+dt at kernel.org; krzysztof.kozlowski+dt at linaro.org;
> > > shawnguo at kernel.org; s.hauer at pengutronix.de; kernel at pengutronix.de;
> > > festevam at gmail.com; dl-linux-imx <linux-imx at nxp.com>;
> > > mturquette at baylibre.com; l.stach at pengutronix.de; Peng Fan
> > > <peng.fan at nxp.com>; alexander.stein at ew.tq-group.com;
> > > gregkh at linuxfoundation.org; devicetree at vger.kernel.org;
> > > linux-arm-kernel at lists.infradead.org; linux-clk at vger.kernel.org
> > > Subject: [PATCH v4 2/3] clk: imx: imx8mp: add shared clk gate for usb suspend
> > > clk
> > > 
> > > 32K usb suspend clock gate is shared with usb_root_clk, this shared clock
> > > gate was initially defined only for usb suspend clock, usb suspend clk is
> > > kept on while system is active or system sleep with usb wakeup enabled, so
> > > usb root clock is fine with this situation; with the commit cf7f3f4fa9e5
> > > ("clk: imx8mp: fix usb_root_clk parent"), this clock gate is changed to be
> > > for usb root clock, but usb root clock will be off while usb is suspended,
> > > so usb suspend clock will be gated too, this cause some usb functionalities
> > > will not work, so define this clock to be a shared clock gate to conform
> > > with the real HW status.
> > > 
> > > Fixes: 9c140d9926761 ("clk: imx: Add support for i.MX8MP clock driver")
> > > Cc: stable at vger.kernel.org # v5.19+
> > > Tested-by: Alexander Stein <alexander.stein at ew.tq-group.com>
> > > Signed-off-by: Li Jun <jun.li at nxp.com>
> > 
> > Is this version okay for you? 
> > 
> 
> I thought that Abel was going to pick these up.

Oh, sorry, I thought the fixes will be picked up by you.

I'll apply it to my tree then.



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