On Mon, Jan 24, 2011 at 20:33, Hiremath, Vaibhav <hvaibhav@xxxxxx> wrote: > >> -----Original Message----- >> From: Varadarajan, Charulatha [mailto:charu@xxxxxx] >> Sent: Monday, January 24, 2011 8:12 PM >> To: Hiremath, Vaibhav >> Cc: linux-omap@xxxxxxxxxxxxxxx; tomi.valkeinen@xxxxxxxxx; tony@xxxxxxxxxxx >> Subject: Re: [PATCH] OMAP3EVM: Made backlight GPIO default state to off >> >> On Mon, Jan 24, 2011 at 20:06, <hvaibhav@xxxxxx> wrote: >> > From: Vaibhav Hiremath <hvaibhav@xxxxxx> >> > >> > If you choose default output to DVI, the LCD backlight stays on, >> > since panel->disable function never gets called. >> > >> > So, during init put backlight GPIO to off state and the driver >> > code will decide which output to enable. >> > >> > Signed-off-by: Vaibhav Hiremath <hvaibhav@xxxxxx> >> > --- >> > arch/arm/mach-omap2/board-omap3evm.c | 5 ++++- >> > 1 files changed, 4 insertions(+), 1 deletions(-) >> > >> > diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach- >> omap2/board-omap3evm.c >> > index 1b8a806..3f5117a 100644 >> > --- a/arch/arm/mach-omap2/board-omap3evm.c >> > +++ b/arch/arm/mach-omap2/board-omap3evm.c >> > @@ -448,7 +448,10 @@ static int omap3evm_twl_gpio_setup(struct device >> *dev, >> > >> > /* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */ >> > gpio_request(gpio + TWL4030_GPIO_MAX, "EN_LCD_BKL"); >> >> Check for the return value and then only proceed >> > [Hiremath, Vaibhav] I do agree with you, we should check the return value. But just to clarify on this, the line above is not being added be me. Its original code. Yes I noticed. But since you are fixing this part of the code (the immediate next line), I thought of mentioning it. > > I will change the patch and submit it again shortly. > > Thanks, > Vaibhav >> > - gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0); >> > + if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) >> > + gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1); >> >> Check for the return value >> >> > + else >> > + gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0); >> >> Ditto >> >> > >> > /* gpio + 7 == DVI Enable */ >> > gpio_request(gpio + 7, "EN_DVI"); >> > -- >> > 1.6.2.4 >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
