Em Wed, 08 Apr 2015 13:56:14 +0000 Sifan Naeem <sifan.na...@imgtec.com> escreveu:
> Hi Mauro, > > I sent you a v2 of this patch on 4th February: > > From: Sifan Naeem > Sent: 04 February 2015 16:48 > To: James Hogan; mche...@osg.samsung.com > Cc: linux-kernel@vger.kernel.org; linux-me...@vger.kernel.org; Sifan Naeem > Subject: [PATCH v2] rc: img-ir: Add and enable sys clock for img-ir > > > Unfortunately, while trying to improve the commit message in v2 I had changed > the last word of the patch name from IR to img-ir. > > Do you want me to do a diff between the 2 patches and send you a new patch? Yes, please do that, changing the patch name/description to reflect what changed since v1. Regards, Mauro > > Sifan > > > -----Original Message----- > > From: Mauro Carvalho Chehab [mailto:mche...@osg.samsung.com] > > Sent: 08 April 2015 12:32 > > To: Sifan Naeem > > Cc: James Hogan; linux-kernel@vger.kernel.org; linux- > > me...@vger.kernel.org > > Subject: Re: [PATCH] rc: img-ir: Add and enable sys clock for IR > > > > Em Tue, 3 Feb 2015 17:30:29 +0000 > > Sifan Naeem <sifan.na...@imgtec.com> escreveu: > > > > > Gets a handle to the system clock, already described in the binding > > > document, and calls the appropriate common clock framework functions > > > to mark it prepared/enabled, the common clock framework initially > > > enables the clock and doesn't disable it at least until the > > > device/driver is removed. > > > The system clock to IR is needed for the driver to communicate with > > > the IR hardware via MMIO accesses on the system bus, so it must not be > > > disabled during use or the driver will malfunction. > > > > Hmm... patchwork has two versions of this patch, but I have only one on my > > e-mail. > > > > Could you please check if I applied the right one? If not, please send me an > > email with a fixup patch. > > > > Thanks! > > Mauro > > > > > > > > Signed-off-by: Sifan Naeem <sifan.na...@imgtec.com> > > > --- > > > drivers/media/rc/img-ir/img-ir-core.c | 13 +++++++++---- > > > drivers/media/rc/img-ir/img-ir.h | 2 ++ > > > 2 files changed, 11 insertions(+), 4 deletions(-) > > > > > > diff --git a/drivers/media/rc/img-ir/img-ir-core.c > > > b/drivers/media/rc/img-ir/img-ir-core.c > > > index 77c78de..783dd21 100644 > > > --- a/drivers/media/rc/img-ir/img-ir-core.c > > > +++ b/drivers/media/rc/img-ir/img-ir-core.c > > > @@ -60,6 +60,8 @@ static void img_ir_setup(struct img_ir_priv *priv) > > > > > > if (!IS_ERR(priv->clk)) > > > clk_prepare_enable(priv->clk); > > > + if (!IS_ERR(priv->sys_clk)) > > > + clk_prepare_enable(priv->sys_clk); > > > } > > > > > > static void img_ir_ident(struct img_ir_priv *priv) @@ -110,10 +112,11 > > > @@ static int img_ir_probe(struct platform_device *pdev) > > > priv->clk = devm_clk_get(&pdev->dev, "core"); > > > if (IS_ERR(priv->clk)) > > > dev_warn(&pdev->dev, "cannot get core clock resource\n"); > > > - /* > > > - * The driver doesn't need to know about the system ("sys") or > > power > > > - * modulation ("mod") clocks yet > > > - */ > > > + > > > + /* Get sys clock */ > > > + priv->sys_clk = devm_clk_get(&pdev->dev, "sys"); > > > + if (IS_ERR(priv->sys_clk)) > > > + dev_warn(&pdev->dev, "cannot get sys clock resource\n"); > > > > > > /* Set up raw & hw decoder */ > > > error = img_ir_probe_raw(priv); > > > @@ -152,6 +155,8 @@ static int img_ir_remove(struct platform_device > > > *pdev) > > > > > > if (!IS_ERR(priv->clk)) > > > clk_disable_unprepare(priv->clk); > > > + if (!IS_ERR(priv->sys_clk)) > > > + clk_disable_unprepare(priv->sys_clk); > > > return 0; > > > } > > > > > > diff --git a/drivers/media/rc/img-ir/img-ir.h > > > b/drivers/media/rc/img-ir/img-ir.h > > > index 2ddf560..f1387c0 100644 > > > --- a/drivers/media/rc/img-ir/img-ir.h > > > +++ b/drivers/media/rc/img-ir/img-ir.h > > > @@ -138,6 +138,7 @@ struct clk; > > > * @dev: Platform device. > > > * @irq: IRQ number. > > > * @clk: Input clock. > > > + * @sys_clk: System clock. > > > * @reg_base: Iomem base address of IR register block. > > > * @lock: Protects IR registers and variables in this > > > struct. > > > * @raw: Driver data for raw decoder. > > > @@ -147,6 +148,7 @@ struct img_ir_priv { > > > struct device *dev; > > > int irq; > > > struct clk *clk; > > > + struct clk *sys_clk; > > > void __iomem *reg_base; > > > spinlock_t lock; > > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
