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interconnect: constify of_phandle_args in xlate

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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.

Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com> # Tegra
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com> # Samsung
Link: https://lore.kernel.org/r/20240220072213.35779-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2024-02-20 08:22:13 +01:00 committed by Georgi Djakov
parent 64eec95820
commit 0dc5b8abfa
14 changed files with 25 additions and 21 deletions
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4
drivers/interconnect/core.c
View File

@ -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;

3
drivers/interconnect/qcom/icc-common.c
View File

@ -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;

3
drivers/interconnect/qcom/icc-common.h
View File

@ -8,6 +8,7 @@
#include <linux/interconnect-provider.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);
#endif

2
drivers/interconnect/samsung/exynos.c
View File

@ -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;

2
drivers/memory/tegra/mc.c
View File

@ -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;

2
drivers/memory/tegra/tegra124-emc.c
View File

@ -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;

2
drivers/memory/tegra/tegra124.c
View File

@ -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;

2
drivers/memory/tegra/tegra186-emc.c
View File

@ -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;

2
drivers/memory/tegra/tegra20-emc.c
View File

@ -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;

2
drivers/memory/tegra/tegra20.c
View File

@ -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];

2
drivers/memory/tegra/tegra30-emc.c
View File

@ -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;

2
drivers/memory/tegra/tegra30.c
View File

@ -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;

11
include/linux/interconnect-provider.h
View File

@ -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);
}

7
include/soc/tegra/mc.h
View File

@ -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 {