From: <Codrin.Ciubotariu@microchip.com>
To: <linux-i2c@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: <kamel.bouhara@bootlin.com>, <wsa@the-dreams.de>,
<Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<Ludovic.Desroches@microchip.com>, <robh@kernel.org>,
<Codrin.Ciubotariu@microchip.com>
Subject: [PATCH v2 0/6] i2c bus recovery for Microchip SoCs
Date: Fri, 3 Jan 2020 09:49:06 +0000 [thread overview]
Message-ID: <20200103094821.13185-1-codrin.ciubotariu@microchip.com> (raw)
This patch series introduce the i2c bus recovery mechanism
for the Microchip SoCs. Some SoCs have hardware support for
recovery, while for those who don't the i2c-gpio bus recovery
mechanism is used. Updated the corresponding dts to add i2c
gpio pinctrl. The bus recovery is configured for the sama5d2/3/4
xplained and sama5d27 som1 EK boards in dts.
Changes in v2:
- integrated the HW CLEAR command patch;
- call i2c_recover_bus() after an error occurs, if SDA is down;
- added i2c gpio pinctrl in sama5d2 xplained and sama5d27 som1 EK
boards;
Codrin Ciubotariu (1):
i2c: at91: Send bus clear command if SCL is down
Kamel Bouhara (5):
dt-bindings: i2c: at91: document optional bus recovery properties
i2c: at91: implement i2c bus recovery
ARM: at91/dt: sama5d3: add i2c gpio pinctrl
ARM: at91/dt: sama5d4: add i2c gpio pinctrl
ARM: at91/dt: sama5d2: add i2c gpio pinctrl
.../devicetree/bindings/i2c/i2c-at91.txt | 10 ++
arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts | 33 +++++-
arch/arm/boot/dts/at91-sama5d2_xplained.dts | 33 +++++-
arch/arm/boot/dts/sama5d3.dtsi | 33 +++++-
arch/arm/boot/dts/sama5d4.dtsi | 33 +++++-
drivers/i2c/busses/i2c-at91-core.c | 9 ++
drivers/i2c/busses/i2c-at91-master.c | 101 ++++++++++++++++++
drivers/i2c/busses/i2c-at91.h | 15 ++-
8 files changed, 254 insertions(+), 13 deletions(-)
--
2.20.1
next reply other threads:[~2020-01-03 9:49 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-03 9:49 Codrin.Ciubotariu [this message]
2020-01-03 9:49 ` [PATCH v2 1/6] dt-bindings: i2c: at91: document optional bus recovery properties Codrin.Ciubotariu
2020-01-03 22:29 ` Rob Herring
2020-01-06 16:34 ` Codrin.Ciubotariu
2020-01-03 9:49 ` [PATCH v2 3/6] i2c: at91: Send bus clear command if SCL is down Codrin.Ciubotariu
2020-01-09 7:47 ` Ludovic Desroches
2020-01-09 10:58 ` Codrin.Ciubotariu
2020-01-09 11:05 ` Russell King - ARM Linux admin
2020-01-09 13:29 ` Codrin.Ciubotariu
2020-01-03 9:49 ` [PATCH v2 2/6] i2c: at91: implement i2c bus recovery Codrin.Ciubotariu
2020-01-09 7:48 ` Ludovic Desroches
2020-01-09 10:54 ` Codrin.Ciubotariu
2020-01-03 9:49 ` [PATCH v2 4/6] ARM: at91/dt: sama5d3: add i2c gpio pinctrl Codrin.Ciubotariu
2020-01-04 22:39 ` Peter Rosin
2020-01-06 16:58 ` Codrin.Ciubotariu
2020-01-03 9:49 ` [PATCH v2 5/6] ARM: at91/dt: sama5d4: " Codrin.Ciubotariu
2020-01-03 9:49 ` [PATCH v2 6/6] ARM: at91/dt: sama5d2: " Codrin.Ciubotariu
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