lkml.org 
[lkml]   [2023]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH 04/16] PCI: samsung: Use clock bulk API to get clocks
Date


> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@linaro.org]
> Sent: 16 February 2023 16:33
> To: Shradha Todi <shradha.t@samsung.com>; lpieralisi@kernel.org;
> kw@linux.com; robh@kernel.org; bhelgaas@google.com;
> krzysztof.kozlowski+dt@linaro.org; alim.akhtar@samsung.com;
> jingoohan1@gmail.com; Sergey.Semin@baikalelectronics.ru;
> lukas.bulwahn@gmail.com; hongxing.zhu@nxp.com; tglx@linutronix.de;
> m.szyprowski@samsung.com; jh80.chung@samsung.co;
> pankaj.dubey@samsung.com
> Cc: linux-pci@vger.kernel.org; devicetree@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: Re: [PATCH 04/16] PCI: samsung: Use clock bulk API to get clocks
>
> On 14/02/2023 13:13, Shradha Todi wrote:
> > Adopt to clock bulk API to handle clocks.
> >
> > Signed-off-by: Shradha Todi <shradha.t@samsung.com>
> > ---
> > drivers/pci/controller/dwc/pci-samsung.c | 46 ++++++------------------
> > 1 file changed, 11 insertions(+), 35 deletions(-)
> >
> > diff --git a/drivers/pci/controller/dwc/pci-samsung.c
> b/drivers/pci/controller/dwc/pci-samsung.c
> > index cfe384aee754..6c07d3f151be 100644
> > --- a/drivers/pci/controller/dwc/pci-samsung.c
> > +++ b/drivers/pci/controller/dwc/pci-samsung.c
> > @@ -54,8 +54,8 @@
> > struct exynos_pcie {
> > struct dw_pcie pci;
> > void __iomem *elbi_base;
> > - struct clk *clk;
> > - struct clk *bus_clk;
> > + struct clk_bulk_data *clks;
> > + int clk_cnt;
> > struct phy *phy;
> > struct regulator_bulk_data supplies[2];
> > };
> > @@ -65,30 +65,18 @@ static int exynos_pcie_init_clk_resources(struct
> exynos_pcie *ep)
> > struct device *dev = ep->pci.dev;
> > int ret;
> >
> > - ret = clk_prepare_enable(ep->clk);
> > - if (ret) {
> > - dev_err(dev, "cannot enable pcie rc clock");
> > + ret = devm_clk_bulk_get_all(dev, &ep->clks);
> > + if (ret < 0)
> > return ret;
> > - }
> >
> > - ret = clk_prepare_enable(ep->bus_clk);
> > - if (ret) {
> > - dev_err(dev, "cannot enable pcie bus clock");
> > - goto err_bus_clk;
> > - }
> > + ep->clk_cnt = ret;
>
> I think this misses check if you got two clocks.
>
>

Got it! Thanks for pointing out. Will add the check in the next version

> Best regards,
> Krzysztof


\
 
 \ /
  Last update: 2023-03-27 00:42    [W:0.042 / U:3.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site