Re: [PATCH] sh: sh4a: Remove unused tmu3_device

From: Krzysztof Kozlowski
Date: Sat Jan 18 2020 - 03:01:34 EST


On Thu, Jan 09, 2020 at 01:56:58PM +0100, Geert Uytterhoeven wrote:
> Hi Krzysztof,
>
> On Wed, Jan 8, 2020 at 8:45 PM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
> > Remove left-over from previous cleanups to silence the warning:
> >
> > arch/sh/kernel/cpu/sh4a/setup-sh7786.c:243:31:
> > warning: âtmu3_deviceâ defined but not used [-Wunused-variable]
> >
> > Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> > ---
> > arch/sh/kernel/cpu/sh4a/setup-sh7786.c | 21 ---------------------
> > 1 file changed, 21 deletions(-)
> >
> > diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
> > index 4b0db8259e3d..22d1c38f742f 100644
> > --- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
> > +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
> > @@ -229,27 +229,6 @@ static struct platform_device tmu2_device = {
> > .num_resources = ARRAY_SIZE(tmu2_resources),
> > };
> >
> > -static struct sh_timer_config tmu3_platform_data = {
> > - .channels_mask = 7,
> > -};
> > -
> > -static struct resource tmu3_resources[] = {
> > - DEFINE_RES_MEM(0xffde0000, 0x2c),
> > - DEFINE_RES_IRQ(evt2irq(0x7c0)),
> > - DEFINE_RES_IRQ(evt2irq(0x7c0)),
> > - DEFINE_RES_IRQ(evt2irq(0x7c0)),
> > -};
> > -
> > -static struct platform_device tmu3_device = {
> > - .name = "sh-tmu",
> > - .id = 3,
> > - .dev = {
> > - .platform_data = &tmu3_platform_data,
> > - },
> > - .resource = tmu3_resources,
> > - .num_resources = ARRAY_SIZE(tmu3_resources),
> > -};
> > -
> > static const struct sh_dmae_channel dmac0_channels[] = {
> > {
> > .offset = 0,
>
> Looks like the previous cleanup accidentally removed one too many tmu
> device pointers. The old style used one device per timer, the new style
> uses one device per 3 timers, i.e. 4 devices for 12 timers.
>
> So the correct fix would be to re-add "&tmu3_device" to
> sh7786_early_devices[].
>
> Fixes: 1399c195ef5009bf ("sh: Switch to new style TMU device")

Indeed, thanks. I'll send v2.

Best regards,
Krzysztof