From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> To: Sam Protsenko <semen.protsenko@linaro.org>, Marek Szyprowski <m.szyprowski@samsung.com>, Sylwester Nawrocki <s.nawrocki@samsung.com>, Chanwoo Choi <cw00.choi@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com>, Alim Akhtar <alim.akhtar@samsung.com>, Chanho Park <chanho61.park@samsung.com>, David Virag <virag.david003@gmail.com>, Sumit Semwal <sumit.semwal@linaro.org>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/6] clk: samsung: Extract parent clock enabling to common function Date: Fri, 3 Feb 2023 10:14:25 +0100 [thread overview] Message-ID: <03eeacfb-22ff-8224-30d7-6c187b179fd7@linaro.org> (raw) In-Reply-To: <20230203060924.8257-6-semen.protsenko@linaro.org> On 03/02/2023 07:09, Sam Protsenko wrote: > Extract parent clock enabling from exynos_arm64_register_cmu() to > dedicated function. No functional change. > > No functional change. > > Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> > --- > drivers/clk/samsung/clk-exynos-arm64.c | 53 +++++++++++++++++--------- > 1 file changed, 36 insertions(+), 17 deletions(-) > > diff --git a/drivers/clk/samsung/clk-exynos-arm64.c b/drivers/clk/samsung/clk-exynos-arm64.c > index b921b9a1134a..361663223a24 100644 > --- a/drivers/clk/samsung/clk-exynos-arm64.c > +++ b/drivers/clk/samsung/clk-exynos-arm64.c > @@ -56,6 +56,41 @@ static void __init exynos_arm64_init_clocks(struct device_node *np, > iounmap(reg_base); > } > > +/** > + * exynos_arm64_enable_bus_clk - Enable parent clock of specified CMU > + * > + * @dev: Device object; may be NULL if this function is not being > + * called from platform driver probe function > + * @np: CMU device tree node > + * @cmu: CMU data > + * > + * Keep CMU parent clock running (needed for CMU registers access). > + * > + * Return: 0 on success or negative error code on failure. > + */ > +static int __init exynos_arm64_enable_bus_clk(struct device *dev, > + struct device_node *np, const struct samsung_cmu_info *cmu) Align the arguments. > +{ > + struct clk *parent_clk; > + > + if (!cmu->clk_name) > + return 0; > + > + if (dev) > + parent_clk = clk_get(dev, cmu->clk_name); > + else > + parent_clk = of_clk_get_by_name(np, cmu->clk_name); > + > + if (IS_ERR(parent_clk)) { > + pr_err("%s: could not find bus clock %s; err = %ld\n", > + __func__, cmu->clk_name, PTR_ERR(parent_clk)); > + return PTR_ERR(parent_clk); > + } > + > + clk_prepare_enable(parent_clk); > + return 0; You do not check the return value in exynos_arm64_register_cmu() below, so either make it a void or add the check. Best regards, Krzysztof
WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> To: Sam Protsenko <semen.protsenko@linaro.org>, Marek Szyprowski <m.szyprowski@samsung.com>, Sylwester Nawrocki <s.nawrocki@samsung.com>, Chanwoo Choi <cw00.choi@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com>, Alim Akhtar <alim.akhtar@samsung.com>, Chanho Park <chanho61.park@samsung.com>, David Virag <virag.david003@gmail.com>, Sumit Semwal <sumit.semwal@linaro.org>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/6] clk: samsung: Extract parent clock enabling to common function Date: Fri, 3 Feb 2023 10:14:25 +0100 [thread overview] Message-ID: <03eeacfb-22ff-8224-30d7-6c187b179fd7@linaro.org> (raw) In-Reply-To: <20230203060924.8257-6-semen.protsenko@linaro.org> On 03/02/2023 07:09, Sam Protsenko wrote: > Extract parent clock enabling from exynos_arm64_register_cmu() to > dedicated function. No functional change. > > No functional change. > > Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> > --- > drivers/clk/samsung/clk-exynos-arm64.c | 53 +++++++++++++++++--------- > 1 file changed, 36 insertions(+), 17 deletions(-) > > diff --git a/drivers/clk/samsung/clk-exynos-arm64.c b/drivers/clk/samsung/clk-exynos-arm64.c > index b921b9a1134a..361663223a24 100644 > --- a/drivers/clk/samsung/clk-exynos-arm64.c > +++ b/drivers/clk/samsung/clk-exynos-arm64.c > @@ -56,6 +56,41 @@ static void __init exynos_arm64_init_clocks(struct device_node *np, > iounmap(reg_base); > } > > +/** > + * exynos_arm64_enable_bus_clk - Enable parent clock of specified CMU > + * > + * @dev: Device object; may be NULL if this function is not being > + * called from platform driver probe function > + * @np: CMU device tree node > + * @cmu: CMU data > + * > + * Keep CMU parent clock running (needed for CMU registers access). > + * > + * Return: 0 on success or negative error code on failure. > + */ > +static int __init exynos_arm64_enable_bus_clk(struct device *dev, > + struct device_node *np, const struct samsung_cmu_info *cmu) Align the arguments. > +{ > + struct clk *parent_clk; > + > + if (!cmu->clk_name) > + return 0; > + > + if (dev) > + parent_clk = clk_get(dev, cmu->clk_name); > + else > + parent_clk = of_clk_get_by_name(np, cmu->clk_name); > + > + if (IS_ERR(parent_clk)) { > + pr_err("%s: could not find bus clock %s; err = %ld\n", > + __func__, cmu->clk_name, PTR_ERR(parent_clk)); > + return PTR_ERR(parent_clk); > + } > + > + clk_prepare_enable(parent_clk); > + return 0; You do not check the return value in exynos_arm64_register_cmu() below, so either make it a void or add the check. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-02-03 9:14 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20230203060905eucas1p20dc8b2dbf93ec2b0c604bd461afbae94@eucas1p2.samsung.com> 2023-02-03 6:09 ` [PATCH 0/6] clk: samsung: Add PM support for ARM64 Exynos chips Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 6:09 ` [PATCH 1/6] clk: samsung: Don't pass reg_base to samsung_clk_register_pll() Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 6:09 ` [PATCH 2/6] clk: samsung: Remove np argument from samsung_clk_init() Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 6:09 ` [PATCH 3/6] clk: samsung: Set dev in samsung_clk_init() Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 6:09 ` [PATCH 4/6] clk: samsung: Extract clocks registration to common function Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 6:09 ` [PATCH 5/6] clk: samsung: Extract parent clock enabling " Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 9:14 ` Krzysztof Kozlowski [this message] 2023-02-03 9:14 ` Krzysztof Kozlowski 2023-02-08 6:00 ` Sam Protsenko 2023-02-08 6:00 ` Sam Protsenko 2023-02-03 6:09 ` [PATCH 6/6] clk: samsung: exynos5433: Extract PM support to common ARM64 layer Sam Protsenko 2023-02-03 6:09 ` Sam Protsenko 2023-02-03 9:18 ` Krzysztof Kozlowski 2023-02-03 9:18 ` Krzysztof Kozlowski 2023-02-08 6:08 ` Sam Protsenko 2023-02-08 6:08 ` Sam Protsenko 2023-02-03 12:19 ` kernel test robot 2023-02-03 12:19 ` kernel test robot 2023-02-03 14:33 ` [PATCH 0/6] clk: samsung: Add PM support for ARM64 Exynos chips Marek Szyprowski 2023-02-03 14:33 ` Marek Szyprowski 2023-02-08 6:05 ` Sam Protsenko 2023-02-08 6:05 ` Sam Protsenko
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=03eeacfb-22ff-8224-30d7-6c187b179fd7@linaro.org \ --to=krzysztof.kozlowski@linaro.org \ --cc=alim.akhtar@samsung.com \ --cc=chanho61.park@samsung.com \ --cc=cw00.choi@samsung.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-clk@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-samsung-soc@vger.kernel.org \ --cc=m.szyprowski@samsung.com \ --cc=mturquette@baylibre.com \ --cc=s.nawrocki@samsung.com \ --cc=sboyd@kernel.org \ --cc=semen.protsenko@linaro.org \ --cc=sumit.semwal@linaro.org \ --cc=tomasz.figa@gmail.com \ --cc=virag.david003@gmail.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.