diff mbox

[5/6] pinctrl: sh-pfc: r8a7795: add SATA0 pin conf to DT

Message ID 1450107758-2544-6-git-send-email-ulrich.hecht+renesas@gmail.com (mailing list archive)
State Rejected
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Ulrich Hecht Dec. 14, 2015, 3:42 p.m. UTC
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
---
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Geert Uytterhoeven Dec. 16, 2015, 10:11 a.m. UTC | #1
Hi Ulrich,

On Mon, Dec 14, 2015 at 4:42 PM, Ulrich Hecht
<ulrich.hecht+renesas@gmail.com> wrote:
> Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
> ---
>  arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
> index 297c9f0..3d6c1e0 100644
> --- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
> @@ -140,6 +140,10 @@
>         pinctrl-0 = <&scif_clk_pins>;
>         pinctrl-names = "default";
>
> +       sata0_pins: sata0 {
> +               renesas,groups = "sata0_devslp_a";

This pin is GP6_16, which is used for USB-OTG on Salvator-X, according to the
schematics?
It looks like the SATA DEVSLP feature is not used at all on Salvator-X.

Upon closer look, using the feature (on a board where the pin is connected)
would need a driver update, as the SATAEDEVSLPR register is not present on
R-Car Gen2, and thus not yet handled by the driver.

Hence I expect SATA to work fine without any pinctrl, and this patch should
just be dropped?

Can you please check? Thanks!

> +               renesas,function = "sata0";
> +       };
>         scif1_pins: scif1 {
>                 renesas,groups = "scif1_data_a", "scif1_ctrl";
>                 renesas,function = "scif1";
> @@ -269,6 +273,9 @@
>  };
>
>  &sata {
> +       pinctrl-0 = <&sata0_pins>;
> +       pinctrl-names = "default";
> +
>         status = "okay";
>  };

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Ulrich Hecht Dec. 16, 2015, 10:23 a.m. UTC | #2
On Wed, Dec 16, 2015 at 11:11 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Hence I expect SATA to work fine without any pinctrl, and this patch should
> just be dropped?
>
> Can you please check? Thanks!

Works just fine without.  I'll drop it.

CU
Uli
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diff mbox

Patch

diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index 297c9f0..3d6c1e0 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -140,6 +140,10 @@ 
 	pinctrl-0 = <&scif_clk_pins>;
 	pinctrl-names = "default";
 
+	sata0_pins: sata0 {
+		renesas,groups = "sata0_devslp_a";
+		renesas,function = "sata0";
+	};
 	scif1_pins: scif1 {
 		renesas,groups = "scif1_data_a", "scif1_ctrl";
 		renesas,function = "scif1";
@@ -269,6 +273,9 @@ 
 };
 
 &sata {
+	pinctrl-0 = <&sata0_pins>;
+	pinctrl-names = "default";
+
 	status = "okay";
 };