* [PATCH 1/5] rtc: rx8581: Add rx8571 compatible
2019-02-21 9:40 [PATCH 0/5] Add EPSON RX-8571 RTC support Biju Das
@ 2019-02-21 9:40 ` Biju Das
2019-02-21 9:40 ` [PATCH 5/5] arm64: dts: renesas: r8a774c0-cat874: add RTC support Biju Das
2019-03-02 21:07 ` [PATCH 0/5] Add EPSON RX-8571 " Alexandre Belloni
2 siblings, 0 replies; 7+ messages in thread
From: Biju Das @ 2019-02-21 9:40 UTC (permalink / raw)
To: Alessandro Zummo, Alexandre Belloni, Rob Herring, Mark Rutland
Cc: Biju Das, linux-rtc, devicetree, Simon Horman, Geert Uytterhoeven,
Chris Paterson, Fabrizio Castro, linux-renesas-soc
The Epson rx8571 is compatible with the Epson rx8581 RTC.
The difference between the rx8571 and rx8581 RTC is that the former has
16 bytes more RAM. This renders them incompatible from a DT point of view.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
---
Documentation/devicetree/bindings/rtc/rtc.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/rtc/rtc.txt b/Documentation/devicetree/bindings/rtc/rtc.txt
index 3e6a215..0bc687e 100644
--- a/Documentation/devicetree/bindings/rtc/rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/rtc.txt
@@ -47,6 +47,7 @@ dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and
dallas,ds1672 Dallas DS1672 Real-time Clock
dallas,ds3232 Extremely Accurate I²C RTC with Integrated Crystal and SRAM
epson,rx8010 I2C-BUS INTERFACE REAL TIME CLOCK MODULE
+epson,rx8571 I2C-BUS INTERFACE REAL TIME CLOCK MODULE with Battery Backed RAM
epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE
emmicro,em3027 EM Microelectronic EM3027 Real-time Clock
isil,isl1208 Intersil ISL1208 Low Power RTC with Battery Backed SRAM
--
2.7.4
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 5/5] arm64: dts: renesas: r8a774c0-cat874: add RTC support
2019-02-21 9:40 [PATCH 0/5] Add EPSON RX-8571 RTC support Biju Das
2019-02-21 9:40 ` [PATCH 1/5] rtc: rx8581: Add rx8571 compatible Biju Das
@ 2019-02-21 9:40 ` Biju Das
2019-03-01 10:29 ` Geert Uytterhoeven
2019-03-02 21:07 ` [PATCH 0/5] Add EPSON RX-8571 " Alexandre Belloni
2 siblings, 1 reply; 7+ messages in thread
From: Biju Das @ 2019-02-21 9:40 UTC (permalink / raw)
To: Rob Herring, Mark Rutland
Cc: Biju Das, Simon Horman, Magnus Damm, linux-renesas-soc,
devicetree, Geert Uytterhoeven, Chris Paterson, Fabrizio Castro
This patch adds Epson RX-8571 real time clock support.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
---
arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
index 96ee0d2c..18ff79c 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
+++ b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
@@ -56,6 +56,19 @@
clock-frequency = <48000000>;
};
+&i2c1 {
+ pinctrl-0 = <&i2c1_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ rtc@32 {
+ compatible = "epson,rx8571";
+ reg = <0x32>;
+ };
+};
+
&pcie_bus_clk {
clock-frequency = <100000000>;
};
@@ -66,6 +79,11 @@
};
&pfc {
+ i2c1_pins: i2c1 {
+ groups = "i2c1_b";
+ function = "i2c1";
+ };
+
scif2_pins: scif2 {
groups = "scif2_data_a";
function = "scif2";
--
2.7.4
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH 5/5] arm64: dts: renesas: r8a774c0-cat874: add RTC support
2019-02-21 9:40 ` [PATCH 5/5] arm64: dts: renesas: r8a774c0-cat874: add RTC support Biju Das
@ 2019-03-01 10:29 ` Geert Uytterhoeven
2019-03-04 9:56 ` Simon Horman
0 siblings, 1 reply; 7+ messages in thread
From: Geert Uytterhoeven @ 2019-03-01 10:29 UTC (permalink / raw)
To: Biju Das
Cc: Rob Herring, Mark Rutland, Simon Horman, Magnus Damm,
Linux-Renesas,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Geert Uytterhoeven, Chris Paterson, Fabrizio Castro
On Thu, Feb 21, 2019 at 10:46 AM Biju Das <biju.das@bp.renesas.com> wrote:
> This patch adds Epson RX-8571 real time clock support.
>
> Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
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
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 5/5] arm64: dts: renesas: r8a774c0-cat874: add RTC support
2019-03-01 10:29 ` Geert Uytterhoeven
@ 2019-03-04 9:56 ` Simon Horman
0 siblings, 0 replies; 7+ messages in thread
From: Simon Horman @ 2019-03-04 9:56 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Biju Das, Rob Herring, Mark Rutland, Magnus Damm, Linux-Renesas,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Geert Uytterhoeven, Chris Paterson, Fabrizio Castro
On Fri, Mar 01, 2019 at 11:29:21AM +0100, Geert Uytterhoeven wrote:
> On Thu, Feb 21, 2019 at 10:46 AM Biju Das <biju.das@bp.renesas.com> wrote:
> > This patch adds Epson RX-8571 real time clock support.
> >
> > Signed-off-by: Biju Das <biju.das@bp.renesas.com>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Thanks, applied for v5.2.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 0/5] Add EPSON RX-8571 RTC support
2019-02-21 9:40 [PATCH 0/5] Add EPSON RX-8571 RTC support Biju Das
2019-02-21 9:40 ` [PATCH 1/5] rtc: rx8581: Add rx8571 compatible Biju Das
2019-02-21 9:40 ` [PATCH 5/5] arm64: dts: renesas: r8a774c0-cat874: add RTC support Biju Das
@ 2019-03-02 21:07 ` Alexandre Belloni
2019-03-04 7:36 ` Biju Das
2 siblings, 1 reply; 7+ messages in thread
From: Alexandre Belloni @ 2019-03-02 21:07 UTC (permalink / raw)
To: Biju Das
Cc: Alessandro Zummo, Rob Herring, Mark Rutland, linux-rtc,
devicetree, Simon Horman, Geert Uytterhoeven, Chris Paterson,
Fabrizio Castro, linux-renesas-soc
On 21/02/2019 09:40:43+0000, Biju Das wrote:
> This patch set aims to add support for EPSON RX-8571 real-time clock.
> EPSON RX-8571 rtc is compatible with EPSON RX-8581 rtc except that
> former has 16 bytes additional RAM.
>
> 1 byte of nvmem is supported on both RX-8581 and RX-8571. It is
> exposed through sysfs along with support for 16 bytes additional RAM
> present only on EPSON RX-8571.
>
> This patch series is tested against renesas-dev and linux-next.
>
> Biju Das (5):
> rtc: rx8581: Add rx8571 compatible
> rtc: rx8581: Add support for rx8571 RTC
> rtc: rx8581: Add support for Epson rx8571 RTC
Applied 1-3. Note that I squashed 2 and 3 as 2 didn't make much sense
without 3.
--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: [PATCH 0/5] Add EPSON RX-8571 RTC support
2019-03-02 21:07 ` [PATCH 0/5] Add EPSON RX-8571 " Alexandre Belloni
@ 2019-03-04 7:36 ` Biju Das
0 siblings, 0 replies; 7+ messages in thread
From: Biju Das @ 2019-03-04 7:36 UTC (permalink / raw)
To: Alexandre Belloni
Cc: Alessandro Zummo, Rob Herring, Mark Rutland,
linux-rtc@vger.kernel.org, devicetree@vger.kernel.org,
Simon Horman, Geert Uytterhoeven, Chris Paterson, Fabrizio Castro,
linux-renesas-soc@vger.kernel.org
Hi Alexandre,
> -----Original Message-----
> From: Alexandre Belloni <alexandre.belloni@bootlin.com>
> Sent: 02 March 2019 21:08
> To: Biju Das <biju.das@bp.renesas.com>
> Cc: Alessandro Zummo <a.zummo@towertech.it>; Rob Herring
> <robh+dt@kernel.org>; Mark Rutland <mark.rutland@arm.com>; linux-
> rtc@vger.kernel.org; devicetree@vger.kernel.org; Simon Horman
> <horms@verge.net.au>; Geert Uytterhoeven <geert+renesas@glider.be>;
> Chris Paterson <Chris.Paterson2@renesas.com>; Fabrizio Castro
> <fabrizio.castro@bp.renesas.com>; linux-renesas-soc@vger.kernel.org
> Subject: Re: [PATCH 0/5] Add EPSON RX-8571 RTC support
>
> On 21/02/2019 09:40:43+0000, Biju Das wrote:
> > This patch set aims to add support for EPSON RX-8571 real-time clock.
> > EPSON RX-8571 rtc is compatible with EPSON RX-8581 rtc except that
> > former has 16 bytes additional RAM.
> >
> > 1 byte of nvmem is supported on both RX-8581 and RX-8571. It is
> > exposed through sysfs along with support for 16 bytes additional RAM
> > present only on EPSON RX-8571.
> >
> > This patch series is tested against renesas-dev and linux-next.
> >
> > Biju Das (5):
> > rtc: rx8581: Add rx8571 compatible
> > rtc: rx8581: Add support for rx8571 RTC
> > rtc: rx8581: Add support for Epson rx8571 RTC
>
> Applied 1-3. Note that I squashed 2 and 3 as 2 didn't make much sense
> without 3.
Thanks.
Regards,
Biju
Renesas Electronics Europe GmbH,Geschaeftsfuehrer/President : Michael Hannawald, Sitz der Gesellschaft/Registered office: Duesseldorf, Arcadiastrasse 10, 40472 Duesseldorf, Germany,Handelsregister/Commercial Register: Duesseldorf, HRB 3708 USt-IDNr./Tax identification no.: DE 119353406 WEEE-Reg.-Nr./WEEE reg. no.: DE 14978647
^ permalink raw reply [flat|nested] 7+ messages in thread