From: Geert Uytterhoeven <geert+renesas@glider.be> To: Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org> Cc: Rob Herring <robh+dt@kernel.org>, Frank Rowand <frowand.list@gmail.com>, Daniel Lezcano <daniel.lezcano@linaro.org>, Thomas Gleixner <tglx@linutronix.de>, Maxime Ripard <maxime.ripard@bootlin.com>, Chen-Yu Tsai <wens@csie.org>, Linus Walleij <linus.walleij@linaro.org>, Heiko Stuebner <heiko@sntech.de>, Thierry Reding <thierry.reding@gmail.com>, Jonathan Hunter <jonathanh@nvidia.com>, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven <geert+renesas@glider.be> Subject: [PATCH v2 4/5] soc/tegra: pmc: Use of_clk_get_parent_count() instead of open coding Date: Tue, 10 Apr 2018 14:51:40 +0200 [thread overview] Message-ID: <1523364701-15383-5-git-send-email-geert+renesas@glider.be> (raw) In-Reply-To: <1523364701-15383-1-git-send-email-geert+renesas@glider.be> As of_clk_get_parent_count() returns zero on failure, while of_count_phandle_with_args() might return a negative error code, this also fixes the issue of possibly using a very big number in the allocation below. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- This depends on "[PATCH v2 1/5] clk: Extract OF clock helpers in <linux/of_clk.h>". v2: - of_clk_get_parent_count() was moved to <linux/of_clk.h>. --- drivers/soc/tegra/pmc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index d9fcdb592b3966a5..d8cb48a4b8eb1b78 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -31,6 +31,7 @@ #include <linux/iopoll.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_clk.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> @@ -725,7 +726,7 @@ static int tegra_powergate_of_get_clks(struct tegra_powergate *pg, unsigned int i, count; int err; - count = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + count = of_clk_get_parent_count(np); if (count == 0) return -ENODEV; -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: geert+renesas@glider.be (Geert Uytterhoeven) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 4/5] soc/tegra: pmc: Use of_clk_get_parent_count() instead of open coding Date: Tue, 10 Apr 2018 14:51:40 +0200 [thread overview] Message-ID: <1523364701-15383-5-git-send-email-geert+renesas@glider.be> (raw) In-Reply-To: <1523364701-15383-1-git-send-email-geert+renesas@glider.be> As of_clk_get_parent_count() returns zero on failure, while of_count_phandle_with_args() might return a negative error code, this also fixes the issue of possibly using a very big number in the allocation below. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- This depends on "[PATCH v2 1/5] clk: Extract OF clock helpers in <linux/of_clk.h>". v2: - of_clk_get_parent_count() was moved to <linux/of_clk.h>. --- drivers/soc/tegra/pmc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index d9fcdb592b3966a5..d8cb48a4b8eb1b78 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -31,6 +31,7 @@ #include <linux/iopoll.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_clk.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> @@ -725,7 +726,7 @@ static int tegra_powergate_of_get_clks(struct tegra_powergate *pg, unsigned int i, count; int err; - count = of_count_phandle_with_args(np, "clocks", "#clock-cells"); + count = of_clk_get_parent_count(np); if (count == 0) return -ENODEV; -- 2.7.4
next prev parent reply other threads:[~2018-04-10 12:51 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-04-10 12:51 [PATCH v2 0/5] Use of_clk_get_parent_count() instead of open coding Geert Uytterhoeven 2018-04-10 12:51 ` Geert Uytterhoeven 2018-04-10 12:51 ` [PATCH v2 1/5] clk: Extract OF clock helpers in <linux/of_clk.h> Geert Uytterhoeven 2018-04-10 12:51 ` Geert Uytterhoeven 2018-04-10 13:15 ` Heiko Stuebner 2018-04-10 13:15 ` Heiko Stuebner 2018-04-13 21:16 ` Rob Herring 2018-04-13 21:16 ` Rob Herring 2018-04-16 16:05 ` Stephen Boyd 2018-04-16 16:05 ` Stephen Boyd 2018-04-16 16:05 ` Stephen Boyd 2018-04-16 16:05 ` Stephen Boyd 2018-04-10 12:51 ` [PATCH v2 2/5] ARM: timer-sp: Use of_clk_get_parent_count() instead of open coding Geert Uytterhoeven 2018-04-10 12:51 ` Geert Uytterhoeven 2018-04-17 8:50 ` Daniel Lezcano 2018-04-17 8:50 ` Daniel Lezcano 2018-04-26 11:56 ` Linus Walleij 2018-04-26 11:56 ` Linus Walleij 2018-04-26 11:56 ` Linus Walleij 2018-04-10 12:51 ` [PATCH v2 3/5] soc: rockchip: power-domain: " Geert Uytterhoeven 2018-04-10 12:51 ` Geert Uytterhoeven 2018-04-10 13:17 ` Heiko Stuebner 2018-04-10 13:17 ` Heiko Stuebner 2018-04-10 12:51 ` Geert Uytterhoeven [this message] 2018-04-10 12:51 ` [PATCH v2 4/5] soc/tegra: pmc: " Geert Uytterhoeven 2018-04-11 9:07 ` Jon Hunter 2018-04-11 9:07 ` Jon Hunter 2018-04-11 9:07 ` Jon Hunter 2018-04-10 12:51 ` [PATCH v2 5/5] pinctrl: sunxi: " Geert Uytterhoeven 2018-04-10 12:51 ` Geert Uytterhoeven 2018-04-10 13:01 ` Maxime Ripard 2018-04-10 13:01 ` Maxime Ripard
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