From: srinivas kandagatla <srinivas.kandagatla@st.com>
To: Maxime COQUELIN <maxime.coquelin@st.com>,
Rob Landley <rob@landley.net>, Rob Herring <robh+dt@kernel.org>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Russell King <linux@arm.linux.org.uk>,
Stuart Menefy <stuart.menefy@st.com>,
Linus Walleij <linus.walleij@linaro.org>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <kernel@stlinux.com>
Cc: <lee.jones@linaro.org>
Subject: Re: [PATCH v3 2/5] pinctrl: st: Enhance the controller to manage unavailable registers
Date: Fri, 7 Mar 2014 15:37:05 +0000 [thread overview]
Message-ID: <5319E7A1.5060605@st.com> (raw)
In-Reply-To: <1394203251-25361-3-git-send-email-maxime.coquelin@st.com>
On 07/03/14 14:40, Maxime COQUELIN wrote:
> From: Giuseppe Cavallaro <peppe.cavallaro@st.com>
>
> This patch adds a new logic inside the st pinctrl to manage
> an unsupported scenario: some sysconfig are not available!
>
> This is the case of STiH407 where, although documented, the
> following registers from SYSCFG_FLASH have been removed from the SoC.
>
> SYSTEM_CONFIG3040
> Output Enable pad control for all PIO Alternate Functions
> and
> SYSTEM_ CONFIG3050
> Pull Up pad control for all PIO Alternate Functions
>
> Without managing this condition an imprecise external abort
> will be detect.
>
> To do this the patch also reviews the st_parse_syscfgs
> and other routines to manipulate the registers only if
> actually available.
> In any case, for example the st_parse_syscfgs detected
> an error condition but no action was made in the
> st_pctl_probe_dt.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
next prev parent reply other threads:[~2014-03-07 15:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-07 14:40 [PATCH v3 0/5] Add STiH407 SoC and reference board support Maxime COQUELIN
2014-03-07 14:40 ` [PATCH v3 1/5] ARM: STi: Add STiH407 SoC support Maxime COQUELIN
2014-03-10 12:34 ` Lee Jones
2014-03-11 13:56 ` Maxime Coquelin
2014-03-07 14:40 ` [PATCH v3 2/5] pinctrl: st: Enhance the controller to manage unavailable registers Maxime COQUELIN
2014-03-07 15:37 ` srinivas kandagatla [this message]
2014-03-10 9:17 ` Lee Jones
2014-03-11 8:18 ` Maxime Coquelin
2014-03-11 10:55 ` Maxime Coquelin
2014-03-11 11:13 ` Lee Jones
2014-03-11 11:12 ` Lee Jones
2014-03-07 14:40 ` [PATCH v3 3/5] pinctrl: st: add pinctrl support for the STiH407 SoC Maxime COQUELIN
2014-03-07 15:36 ` srinivas kandagatla
2014-03-10 14:44 ` Lee Jones
2014-03-11 8:52 ` Maxime Coquelin
2014-03-07 14:40 ` [PATCH v3 4/5] ARM: dts: Add STiH407 SoC support Maxime COQUELIN
2014-03-10 12:28 ` Lee Jones
2014-03-10 16:16 ` Lee Jones
2014-03-11 10:09 ` Maxime Coquelin
2014-03-07 14:40 ` [PATCH v3 5/5] ARM: dts: STiH407: Add B2120 board support Maxime COQUELIN
2014-03-10 12:37 ` Lee Jones
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