On 10/21/2016 10:55 AM, Peter Griffin wrote: > Now that CLK_PROC_STFE is defined as a critical clock in > DT, we can remove the commented clk_disable_unprepare from > the c8sectpfe driver. This means we now have balanced > clk*enable/disable calls in the driver, but on STiH407 > family the clock in reality will never actually be disabled. > > This is due to a HW bug where once the IP has been configured > and the SLIM core is running, disabling the clock causes a > unrecoverable bus lockup. > > Signed-off-by: Peter Griffin <peter.griffin@xxxxxxxxxx> > --- > drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c | 6 +----- > 1 file changed, 1 insertion(+), 5 deletions(-) > > diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c > index 30c148b..79d793b 100644 > --- a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c > +++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c > @@ -888,8 +888,7 @@ static int c8sectpfe_probe(struct platform_device *pdev) > return 0; > > err_clk_disable: > - /* TODO uncomment when upstream has taken a reference on this clk */ > - /*clk_disable_unprepare(fei->c8sectpfeclk);*/ > + clk_disable_unprepare(fei->c8sectpfeclk); > return ret; > } > > @@ -924,11 +923,8 @@ static int c8sectpfe_remove(struct platform_device *pdev) > if (readl(fei->io + SYS_OTHER_CLKEN)) > writel(0, fei->io + SYS_OTHER_CLKEN); > > - /* TODO uncomment when upstream has taken a reference on this clk */ > - /* > if (fei->c8sectpfeclk) > clk_disable_unprepare(fei->c8sectpfeclk); > - */ > > return 0; > } > Acked-by: Patrice Chotard <patrice.chotard@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
