| Message ID | 1404163947-3105-6-git-send-email-kgene.kim@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Kukjin, On 30.06.2014 23:32, Kukjin Kim wrote: > This patch removes supporting s5p64x0 related pwm codes because of > no more support for S5P6440 and S5P6450 SoCs. And this patch changes > the name of s5p6440-pwm to exynos-pwm instead. > > Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> > Cc: Thierry Reding <thierry.reding@gmail.com> > --- > Documentation/devicetree/bindings/pwm/pwm-samsung.txt | 1 - > arch/arm/boot/dts/exynos4210-universal_c210.dts | 2 +- > drivers/clocksource/samsung_pwm_timer.c | 13 ------------- > drivers/pwm/pwm-samsung.c | 5 ++--- > 4 files changed, 3 insertions(+), 18 deletions(-) > > diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt > index 5538de9..43925d3 100644 > --- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt > +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt > @@ -11,7 +11,6 @@ Required properties: > - compatible : should be one of following: > samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs > samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs > - samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs > samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210, > Exynos4210 rev0 SoCs > samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210, > diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts > index d50eb3a..0ca26e0 100644 > --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts > +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts > @@ -461,7 +461,7 @@ > }; > > pwm@139D0000 { > - compatible = "samsung,s5p6440-pwm"; > + compatible = "samsung,exynos4210-pwm"; There is a reason to use a different compatible string for Exynos4210 rev0. The PWM block is used as a timer there, while on newer revs MCT is used. Sorry, but I have to NAK this patch. As I explained in my reply to patch 11/17, I'd suggest keeping the PWM drivers as is, because there is no need to remove support for DT compatible strings. Best regards, Tomasz -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 07/04/14 17:10, Tomasz Figa wrote: > Hi Kukjin, > Tomasz, > On 30.06.2014 23:32, Kukjin Kim wrote: >> This patch removes supporting s5p64x0 related pwm codes because of >> no more support for S5P6440 and S5P6450 SoCs. And this patch changes >> the name of s5p6440-pwm to exynos-pwm instead. >> >> Signed-off-by: Kukjin Kim<kgene.kim@samsung.com> >> Cc: Thierry Reding<thierry.reding@gmail.com> >> --- >> Documentation/devicetree/bindings/pwm/pwm-samsung.txt | 1 - >> arch/arm/boot/dts/exynos4210-universal_c210.dts | 2 +- >> drivers/clocksource/samsung_pwm_timer.c | 13 ------------- >> drivers/pwm/pwm-samsung.c | 5 ++--- >> 4 files changed, 3 insertions(+), 18 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt >> index 5538de9..43925d3 100644 >> --- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt >> +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt >> @@ -11,7 +11,6 @@ Required properties: >> - compatible : should be one of following: >> samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs >> samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs >> - samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs >> samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210, >> Exynos4210 rev0 SoCs >> samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210, >> diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts >> index d50eb3a..0ca26e0 100644 >> --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts >> +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts >> @@ -461,7 +461,7 @@ >> }; >> >> pwm@139D0000 { >> - compatible = "samsung,s5p6440-pwm"; >> + compatible = "samsung,exynos4210-pwm"; > > There is a reason to use a different compatible string for Exynos4210 > rev0. The PWM block is used as a timer there, while on newer revs MCT is > used. Sorry, but I have to NAK this patch. > I remember why exynos4210-universal_c210 uses PWM...OK. > As I explained in my reply to patch 11/17, I'd suggest keeping the PWM > drivers as is, because there is no need to remove support for DT > compatible strings. > OK, let me remove pwm related patches in this series but I think need to update the compatible strings, at least remove non-support SoC in doc?... Thanks, Kukjin -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Kukjin, On 08.07.2014 00:23, Kukjin Kim wrote: > On 07/04/14 17:10, Tomasz Figa wrote: >> Hi Kukjin, >> > Tomasz, > >> On 30.06.2014 23:32, Kukjin Kim wrote: >>> This patch removes supporting s5p64x0 related pwm codes because of >>> no more support for S5P6440 and S5P6450 SoCs. And this patch changes >>> the name of s5p6440-pwm to exynos-pwm instead. >>> >>> Signed-off-by: Kukjin Kim<kgene.kim@samsung.com> >>> Cc: Thierry Reding<thierry.reding@gmail.com> >>> --- >>> Documentation/devicetree/bindings/pwm/pwm-samsung.txt | 1 - >>> arch/arm/boot/dts/exynos4210-universal_c210.dts | 2 +- >>> drivers/clocksource/samsung_pwm_timer.c | 13 ------------- >>> drivers/pwm/pwm-samsung.c | 5 ++--- >>> 4 files changed, 3 insertions(+), 18 deletions(-) >>> >>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt >>> index 5538de9..43925d3 100644 >>> --- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt >>> +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt >>> @@ -11,7 +11,6 @@ Required properties: >>> - compatible : should be one of following: >>> samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs >>> samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs >>> - samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs >>> samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210, >>> Exynos4210 rev0 SoCs >>> samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210, >>> diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts >>> index d50eb3a..0ca26e0 100644 >>> --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts >>> +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts >>> @@ -461,7 +461,7 @@ >>> }; >>> >>> pwm@139D0000 { >>> - compatible = "samsung,s5p6440-pwm"; >>> + compatible = "samsung,exynos4210-pwm"; >> >> There is a reason to use a different compatible string for Exynos4210 >> rev0. The PWM block is used as a timer there, while on newer revs MCT is >> used. Sorry, but I have to NAK this patch. >> > I remember why exynos4210-universal_c210 uses PWM...OK. > >> As I explained in my reply to patch 11/17, I'd suggest keeping the PWM >> drivers as is, because there is no need to remove support for DT >> compatible strings. >> > OK, let me remove pwm related patches in this series but I think need to > update the compatible strings, at least remove non-support SoC in doc?... Device tree bindings are defined according to the first SoC in which given hardware variant appeared and since they are stable, they should stay as is. I don't think it will have any negative effects on maintenance costs and it doesn't imply that the SoC is still supported. (Anyway, with DT you can boot virtually any SoC, without the kernel being aware of it, as long as it supports all the necessary IP blocks.) Best regards, Tomasz -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt index 5538de9..43925d3 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt @@ -11,7 +11,6 @@ Required properties: - compatible : should be one of following: samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs - samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210, Exynos4210 rev0 SoCs samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210, diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts index d50eb3a..0ca26e0 100644 --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts @@ -461,7 +461,7 @@ }; pwm@139D0000 { - compatible = "samsung,s5p6440-pwm"; + compatible = "samsung,exynos4210-pwm"; status = "okay"; }; diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c index 5645cfc..e35a9b7 100644 --- a/drivers/clocksource/samsung_pwm_timer.c +++ b/drivers/clocksource/samsung_pwm_timer.c @@ -480,19 +480,6 @@ static void __init s3c64xx_pwm_clocksource_init(struct device_node *np) } CLOCKSOURCE_OF_DECLARE(s3c6400_pwm, "samsung,s3c6400-pwm", s3c64xx_pwm_clocksource_init); -static const struct samsung_pwm_variant s5p64x0_variant = { - .bits = 32, - .div_base = 0, - .has_tint_cstat = true, - .tclk_mask = 0, -}; - -static void __init s5p64x0_pwm_clocksource_init(struct device_node *np) -{ - samsung_pwm_alloc(np, &s5p64x0_variant); -} -CLOCKSOURCE_OF_DECLARE(s5p6440_pwm, "samsung,s5p6440-pwm", s5p64x0_pwm_clocksource_init); - static const struct samsung_pwm_variant s5p_variant = { .bits = 32, .div_base = 0, diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index ba6b650..68f3471 100644 --- a/drivers/pwm/pwm-samsung.c +++ b/drivers/pwm/pwm-samsung.c @@ -404,7 +404,7 @@ static const struct samsung_pwm_variant s3c64xx_variant = { .tclk_mask = BIT(7) | BIT(6) | BIT(5), }; -static const struct samsung_pwm_variant s5p64x0_variant = { +static const struct samsung_pwm_variant exynos4210_variant = { .bits = 32, .div_base = 0, .has_tint_cstat = true, @@ -421,9 +421,8 @@ static const struct samsung_pwm_variant s5pc100_variant = { static const struct of_device_id samsung_pwm_matches[] = { { .compatible = "samsung,s3c2410-pwm", .data = &s3c24xx_variant }, { .compatible = "samsung,s3c6400-pwm", .data = &s3c64xx_variant }, - { .compatible = "samsung,s5p6440-pwm", .data = &s5p64x0_variant }, { .compatible = "samsung,s5pc100-pwm", .data = &s5pc100_variant }, - { .compatible = "samsung,exynos4210-pwm", .data = &s5p64x0_variant }, + { .compatible = "samsung,exynos4210-pwm", .data = &exynos4210_variant }, {}, };
This patch removes supporting s5p64x0 related pwm codes because of no more support for S5P6440 and S5P6450 SoCs. And this patch changes the name of s5p6440-pwm to exynos-pwm instead. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Thierry Reding <thierry.reding@gmail.com> --- Documentation/devicetree/bindings/pwm/pwm-samsung.txt | 1 - arch/arm/boot/dts/exynos4210-universal_c210.dts | 2 +- drivers/clocksource/samsung_pwm_timer.c | 13 ------------- drivers/pwm/pwm-samsung.c | 5 ++--- 4 files changed, 3 insertions(+), 18 deletions(-)