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([78.10.207.130]) by smtp.gmail.com with ESMTPSA id l22-20020a170906079600b00a3d4b488970sm1569441ejc.45.2024.02.16.05.52.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Feb 2024 05:52:38 -0800 (PST) From: Krzysztof Kozlowski To: Linus Walleij , Bartosz Golaszewski , Georgi Djakov , Bjorn Andersson , Konrad Dybcio , Sylwester Nawrocki , =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , Krzysztof Kozlowski , Alim Akhtar , Thierry Reding , Jonathan Hunter , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org Subject: [PATCH] interconnect: constify of_phandle_args in xlate Date: Fri, 16 Feb 2024 14:52:36 +0100 Message-Id: <20240216135236.129878-1-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The xlate callbacks are supposed to translate of_phandle_args to proper provider without modifying the of_phandle_args. Make the argument pointer to const for code safety and readability. Signed-off-by: Krzysztof Kozlowski Acked-by: Thierry Reding --- drivers/gpio/gpiolib-of.c | 2 +- drivers/interconnect/core.c | 4 ++-- drivers/interconnect/qcom/icc-common.c | 3 ++- drivers/interconnect/qcom/icc-common.h | 3 ++- drivers/interconnect/samsung/exynos.c | 2 +- drivers/memory/tegra/mc.c | 2 +- drivers/memory/tegra/tegra124-emc.c | 2 +- drivers/memory/tegra/tegra124.c | 2 +- drivers/memory/tegra/tegra186-emc.c | 2 +- drivers/memory/tegra/tegra20-emc.c | 2 +- drivers/memory/tegra/tegra20.c | 2 +- drivers/memory/tegra/tegra30-emc.c | 2 +- drivers/memory/tegra/tegra30.c | 2 +- include/linux/interconnect-provider.h | 11 ++++++----- include/soc/tegra/mc.h | 7 ++++--- 15 files changed, 26 insertions(+), 22 deletions(-) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 35d717fd393f..708b0d51f4b7 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -129,7 +129,7 @@ static int of_gpiochip_match_node_and_xlate(struct gpio_chip *chip, } static struct gpio_device * -of_find_gpio_device_by_xlate(struct of_phandle_args *gpiospec) +of_find_gpio_device_by_xlate(const struct of_phandle_args *gpiospec) { return gpio_device_find(gpiospec, of_gpiochip_match_node_and_xlate); } diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 50bac2d79d9b..5d1010cafed8 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -343,7 +343,7 @@ EXPORT_SYMBOL_GPL(icc_std_aggregate); * an array of icc nodes specified in the icc_onecell_data struct when * registering the provider. */ -struct icc_node *of_icc_xlate_onecell(struct of_phandle_args *spec, +struct icc_node *of_icc_xlate_onecell(const struct of_phandle_args *spec, void *data) { struct icc_onecell_data *icc_data = data; @@ -368,7 +368,7 @@ EXPORT_SYMBOL_GPL(of_icc_xlate_onecell); * Returns a valid pointer to struct icc_node_data on success or ERR_PTR() * on failure. */ -struct icc_node_data *of_icc_get_from_provider(struct of_phandle_args *spec) +struct icc_node_data *of_icc_get_from_provider(const struct of_phandle_args *spec) { struct icc_node *node = ERR_PTR(-EPROBE_DEFER); struct icc_node_data *data = NULL; diff --git a/drivers/interconnect/qcom/icc-common.c b/drivers/interconnect/qcom/icc-common.c index f27f4fdc4531..9b9ee113f172 100644 --- a/drivers/interconnect/qcom/icc-common.c +++ b/drivers/interconnect/qcom/icc-common.c @@ -9,7 +9,8 @@ #include "icc-common.h" -struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data) +struct icc_node_data *qcom_icc_xlate_extended(const struct of_phandle_args *spec, + void *data) { struct icc_node_data *ndata; struct icc_node *node; diff --git a/drivers/interconnect/qcom/icc-common.h b/drivers/interconnect/qcom/icc-common.h index 33bb2c38dff3..21c39b163948 100644 --- a/drivers/interconnect/qcom/icc-common.h +++ b/drivers/interconnect/qcom/icc-common.h @@ -8,6 +8,7 @@ #include -struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data); +struct icc_node_data *qcom_icc_xlate_extended(const struct of_phandle_args *spec, + void *data); #endif diff --git a/drivers/interconnect/samsung/exynos.c b/drivers/interconnect/samsung/exynos.c index 1ba14cb45d5a..c9e5361e17c5 100644 --- a/drivers/interconnect/samsung/exynos.c +++ b/drivers/interconnect/samsung/exynos.c @@ -82,7 +82,7 @@ static int exynos_generic_icc_set(struct icc_node *src, struct icc_node *dst) return 0; } -static struct icc_node *exynos_generic_icc_xlate(struct of_phandle_args *spec, +static struct icc_node *exynos_generic_icc_xlate(const struct of_phandle_args *spec, void *data) { struct exynos_icc_priv *priv = data; diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index a083921a8968..224b488794e5 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -755,7 +755,7 @@ const char *const tegra_mc_error_names[8] = { [6] = "SMMU translation error", }; -struct icc_node *tegra_mc_icc_xlate(struct of_phandle_args *spec, void *data) +struct icc_node *tegra_mc_icc_xlate(const struct of_phandle_args *spec, void *data) { struct tegra_mc *mc = icc_provider_to_tegra_mc(data); struct icc_node *node; diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c index 00ed2b6a0d1b..47c0c19e13fd 100644 --- a/drivers/memory/tegra/tegra124-emc.c +++ b/drivers/memory/tegra/tegra124-emc.c @@ -1285,7 +1285,7 @@ to_tegra_emc_provider(struct icc_provider *provider) } static struct icc_node_data * -emc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data) +emc_of_icc_xlate_extended(const struct of_phandle_args *spec, void *data) { struct icc_provider *provider = data; struct icc_node_data *ndata; diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c index 470b7dbab2c2..9d7393e19f12 100644 --- a/drivers/memory/tegra/tegra124.c +++ b/drivers/memory/tegra/tegra124.c @@ -1170,7 +1170,7 @@ static int tegra124_mc_icc_aggreate(struct icc_node *node, u32 tag, u32 avg_bw, } static struct icc_node_data * -tegra124_mc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data) +tegra124_mc_of_icc_xlate_extended(const struct of_phandle_args *spec, void *data) { struct tegra_mc *mc = icc_provider_to_tegra_mc(data); const struct tegra_mc_client *client; diff --git a/drivers/memory/tegra/tegra186-emc.c b/drivers/memory/tegra/tegra186-emc.c index fcd4aea48bda..57d9ae12fcfe 100644 --- a/drivers/memory/tegra/tegra186-emc.c +++ b/drivers/memory/tegra/tegra186-emc.c @@ -236,7 +236,7 @@ static int tegra_emc_icc_set_bw(struct icc_node *src, struct icc_node *dst) } static struct icc_node * -tegra_emc_of_icc_xlate(struct of_phandle_args *spec, void *data) +tegra_emc_of_icc_xlate(const struct of_phandle_args *spec, void *data) { struct icc_provider *provider = data; struct icc_node *node; diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index fd595c851a27..97cf59523b0b 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -950,7 +950,7 @@ to_tegra_emc_provider(struct icc_provider *provider) } static struct icc_node_data * -emc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data) +emc_of_icc_xlate_extended(const struct of_phandle_args *spec, void *data) { struct icc_provider *provider = data; struct icc_node_data *ndata; diff --git a/drivers/memory/tegra/tegra20.c b/drivers/memory/tegra/tegra20.c index aa4b97d5e732..a3022e715dee 100644 --- a/drivers/memory/tegra/tegra20.c +++ b/drivers/memory/tegra/tegra20.c @@ -390,7 +390,7 @@ static int tegra20_mc_icc_aggreate(struct icc_node *node, u32 tag, u32 avg_bw, } static struct icc_node_data * -tegra20_mc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data) +tegra20_mc_of_icc_xlate_extended(const struct of_phandle_args *spec, void *data) { struct tegra_mc *mc = icc_provider_to_tegra_mc(data); unsigned int i, idx = spec->args[0]; diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c index 9eae25c57ec6..d7b0a23c2d7d 100644 --- a/drivers/memory/tegra/tegra30-emc.c +++ b/drivers/memory/tegra/tegra30-emc.c @@ -1468,7 +1468,7 @@ to_tegra_emc_provider(struct icc_provider *provider) } static struct icc_node_data * -emc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data) +emc_of_icc_xlate_extended(const struct of_phandle_args *spec, void *data) { struct icc_provider *provider = data; struct icc_node_data *ndata; diff --git a/drivers/memory/tegra/tegra30.c b/drivers/memory/tegra/tegra30.c index 06f8b35e0a14..d3e685c8431f 100644 --- a/drivers/memory/tegra/tegra30.c +++ b/drivers/memory/tegra/tegra30.c @@ -1332,7 +1332,7 @@ static int tegra30_mc_icc_aggreate(struct icc_node *node, u32 tag, u32 avg_bw, } static struct icc_node_data * -tegra30_mc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data) +tegra30_mc_of_icc_xlate_extended(const struct of_phandle_args *spec, void *data) { struct tegra_mc *mc = icc_provider_to_tegra_mc(data); const struct tegra_mc_client *client; diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h index 7ba183f221f1..f5aef8784692 100644 --- a/include/linux/interconnect-provider.h +++ b/include/linux/interconnect-provider.h @@ -36,7 +36,7 @@ struct icc_onecell_data { struct icc_node *nodes[] __counted_by(num_nodes); }; -struct icc_node *of_icc_xlate_onecell(struct of_phandle_args *spec, +struct icc_node *of_icc_xlate_onecell(const struct of_phandle_args *spec, void *data); /** @@ -65,8 +65,9 @@ struct icc_provider { u32 peak_bw, u32 *agg_avg, u32 *agg_peak); void (*pre_aggregate)(struct icc_node *node); int (*get_bw)(struct icc_node *node, u32 *avg, u32 *peak); - struct icc_node* (*xlate)(struct of_phandle_args *spec, void *data); - struct icc_node_data* (*xlate_extended)(struct of_phandle_args *spec, void *data); + struct icc_node* (*xlate)(const struct of_phandle_args *spec, void *data); + struct icc_node_data* (*xlate_extended)(const struct of_phandle_args *spec, + void *data); struct device *dev; int users; bool inter_set; @@ -124,7 +125,7 @@ int icc_nodes_remove(struct icc_provider *provider); void icc_provider_init(struct icc_provider *provider); int icc_provider_register(struct icc_provider *provider); void icc_provider_deregister(struct icc_provider *provider); -struct icc_node_data *of_icc_get_from_provider(struct of_phandle_args *spec); +struct icc_node_data *of_icc_get_from_provider(const struct of_phandle_args *spec); void icc_sync_state(struct device *dev); #else @@ -171,7 +172,7 @@ static inline int icc_provider_register(struct icc_provider *provider) static inline void icc_provider_deregister(struct icc_provider *provider) { } -static inline struct icc_node_data *of_icc_get_from_provider(struct of_phandle_args *spec) +static inline struct icc_node_data *of_icc_get_from_provider(const struct of_phandle_args *spec) { return ERR_PTR(-ENOTSUPP); } diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h index af1d73a7f0cd..6ee4c59db620 100644 --- a/include/soc/tegra/mc.h +++ b/include/soc/tegra/mc.h @@ -146,13 +146,14 @@ struct tegra_mc_icc_ops { int (*set)(struct icc_node *src, struct icc_node *dst); int (*aggregate)(struct icc_node *node, u32 tag, u32 avg_bw, u32 peak_bw, u32 *agg_avg, u32 *agg_peak); - struct icc_node* (*xlate)(struct of_phandle_args *spec, void *data); - struct icc_node_data *(*xlate_extended)(struct of_phandle_args *spec, + struct icc_node* (*xlate)(const struct of_phandle_args *spec, void *data); + struct icc_node_data *(*xlate_extended)(const struct of_phandle_args *spec, void *data); int (*get_bw)(struct icc_node *node, u32 *avg, u32 *peak); }; -struct icc_node *tegra_mc_icc_xlate(struct of_phandle_args *spec, void *data); +struct icc_node *tegra_mc_icc_xlate(const struct of_phandle_args *spec, + void *data); extern const struct tegra_mc_icc_ops tegra_mc_icc_ops; struct tegra_mc_ops {