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devm_kasprintf() may return NULL on failure of internal allocation
thus the assignments are not safe if not checked. On error
rza1_pinctrl_register() respectively rza1_parse_gpiochip() return
negative values so -ENOMEM in the (unlikely) failure case of
devm_kasprintf() should be fine here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: 5a49b644b307 ("pinctrl: Renesas RZ/A1 pin and gpio controller")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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If the probe function fails the driver core cares to return the allocated
resources automatically. So the driver can be simplified accordingly.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v4.20 (take two)
- Add MSIOF pin groups on R-Car E3 and D3,
- Add support for the new RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs,
- Add I2C4, DU0, QSPI0, SDHI2, and USB pin groups on RZ/G1C,
- Convert to SPDX license identifiers,
- Small cleanups.
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This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Dong Aisheng <aisheng.dong@nxp.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: linux-gpio@vger.kernel.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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We must use a mutex around the generic_add functions and save the
function and group selector in case we need to remove them. Otherwise
the selector use will be racy for deferred probe at least.
Fixes: 5a49b644b307 ("pinctrl: Renesas RZ/A1 pin and gpio controller")
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Cc: Christ van Willegen <cvwillegen@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Sean Wang <sean.wang@mediatek.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-By: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Aspects like the number of ports and the location where peripherals are
brought out differ between the RZ/A1H and RZ/A1L.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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The OF node name already contains the gpio chip identifier, no need to
append it when creating the label.
The following debug message clearly shows the suffix is not required
"pinctrl-rza1 fcfe3000.pin-controller: Parsed gpiochip gpio-0-0 with 6
pins"
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The rza1_pctl->ports[] array has RZA1_NPORTS (12) elements. The > here
should be >= to prevent an out of bounds access.
Fixes: 5a49b644b307 ("pinctrl: Renesas RZ/A1 pin and gpio controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This pinmux_ops structure is only stored in the const pmxops field
of a pinctrl_desc structure. Make the pinmux_ops structure const as
well.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This structure is only used to copy into other structure, so declare
it as const.
This issue was detected using Coccinelle and the following semantic patch:
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct gpio_chip i@p = { ... };
@ok@
identifier r.i;
expression e;
position p;
@@
e = i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct gpio_chip e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct gpio_chip i = { ... };
In the following log you can see a significant difference in the code size
and data segment, hence in the dec segment. This log is the output
of the size command, before and after the code change:
before:
text data bss dec hex filename
11866 3520 128 15514 3c9a drivers/pinctrl/pinctrl-rza1.o
after:
text data bss dec hex filename
11539 3464 128 15131 3b1b drivers/pinctrl/pinctrl-rza1.o
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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structures rza1_gpiochip_template and rza1_pinmux_ops do not need to be
in global scope, so make them static.
Cleans up sparse warnings:
symbol 'rza1_gpiochip_template' was not declared. Should it be static?
symbol 'rza1_pinmux_ops' was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Depending on compiler version:
drivers/pinctrl/pinctrl-rza1.c: In function ‘rza1_pinctrl_probe’:
drivers/pinctrl/pinctrl-rza1.c:1260:5: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
if (ret)
^
Indeed, the result returned by platform_get_resource() was stored in
"res", not "ret". In addition, the correct error check would be
"if (!res)", as platform_get_resource() does not return an error code,
but returns NULL on failure.
However, as devm_ioremap_resource() verifies the validity of the passed
resource pointer anyway, the check can just be removed.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 5a49b644b3075f88 ("pinctrl: Renesas RZ/A1 pin and gpio controller")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add combined gpio and pin controller driver for Renesas RZ/A1
r7s72100 SoC.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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