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Message-Id: <20250910-memory-tegra-cleanup-v1-12-023c33a2d997@linaro.org>
Date: Wed, 10 Sep 2025 12:44:08 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>
Cc: linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
Aaron Kling <webgeek1234@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 12/13] memory: tegra20-emc: Add the SoC model prefix to
functions
Replace "tegra_emc" with "tegra124_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
drivers/memory/tegra/tegra20-emc.c | 120 ++++++++++++++++++-------------------
1 file changed, 60 insertions(+), 60 deletions(-)
diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c
index 18e266dde5d2a0fb962fadc04161b03fb79f76cb..398cb8ae2e38736fcac04d71738b11b3d5b75f4e 100644
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@ -232,7 +232,7 @@ struct tegra_emc {
bool mrr_error;
};
-static irqreturn_t tegra_emc_isr(int irq, void *data)
+static irqreturn_t tegra20_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
u32 intmask = EMC_REFRESH_OVERFLOW_INT;
@@ -253,8 +253,8 @@ static irqreturn_t tegra_emc_isr(int irq, void *data)
return IRQ_HANDLED;
}
-static struct emc_timing *tegra_emc_find_timing(struct tegra_emc *emc,
- unsigned long rate)
+static struct emc_timing *tegra20_emc_find_timing(struct tegra_emc *emc,
+ unsigned long rate)
{
struct emc_timing *timing = NULL;
unsigned int i;
@@ -276,7 +276,7 @@ static struct emc_timing *tegra_emc_find_timing(struct tegra_emc *emc,
static int emc_prepare_timing_change(struct tegra_emc *emc, unsigned long rate)
{
- struct emc_timing *timing = tegra_emc_find_timing(emc, rate);
+ struct emc_timing *timing = tegra20_emc_find_timing(emc, rate);
unsigned int i;
if (!timing)
@@ -321,8 +321,8 @@ static int emc_complete_timing_change(struct tegra_emc *emc, bool flush)
return 0;
}
-static int tegra_emc_clk_change_notify(struct notifier_block *nb,
- unsigned long msg, void *data)
+static int tegra20_emc_clk_change_notify(struct notifier_block *nb,
+ unsigned long msg, void *data)
{
struct tegra_emc *emc = container_of(nb, struct tegra_emc, clk_nb);
struct clk_notifier_data *cnd = data;
@@ -407,8 +407,8 @@ static int cmp_timings(const void *_a, const void *_b)
return 0;
}
-static int tegra_emc_load_timings_from_dt(struct tegra_emc *emc,
- struct device_node *node)
+static int tegra20_emc_load_timings_from_dt(struct tegra_emc *emc,
+ struct device_node *node)
{
struct emc_timing *timing;
int child_count;
@@ -452,7 +452,7 @@ static int tegra_emc_load_timings_from_dt(struct tegra_emc *emc,
}
static struct device_node *
-tegra_emc_find_node_by_ram_code(struct tegra_emc *emc)
+tegra20_emc_find_node_by_ram_code(struct tegra_emc *emc)
{
struct device *dev = emc->dev;
struct device_node *np;
@@ -710,7 +710,7 @@ static long emc_round_rate(unsigned long rate,
return timing->rate;
}
-static void tegra_emc_rate_requests_init(struct tegra_emc *emc)
+static void tegra20_emc_rate_requests_init(struct tegra_emc *emc)
{
unsigned int i;
@@ -812,7 +812,7 @@ static int emc_set_max_rate(struct tegra_emc *emc, unsigned long rate,
* valid range.
*/
-static bool tegra_emc_validate_rate(struct tegra_emc *emc, unsigned long rate)
+static bool tegra20_emc_validate_rate(struct tegra_emc *emc, unsigned long rate)
{
unsigned int i;
@@ -823,7 +823,7 @@ static bool tegra_emc_validate_rate(struct tegra_emc *emc, unsigned long rate)
return false;
}
-static int tegra_emc_debug_available_rates_show(struct seq_file *s, void *data)
+static int tegra20_emc_debug_available_rates_show(struct seq_file *s, void *data)
{
struct tegra_emc *emc = s->private;
const char *prefix = "";
@@ -838,9 +838,9 @@ static int tegra_emc_debug_available_rates_show(struct seq_file *s, void *data)
return 0;
}
-DEFINE_SHOW_ATTRIBUTE(tegra_emc_debug_available_rates);
+DEFINE_SHOW_ATTRIBUTE(tegra20_emc_debug_available_rates);
-static int tegra_emc_debug_min_rate_get(void *data, u64 *rate)
+static int tegra20_emc_debug_min_rate_get(void *data, u64 *rate)
{
struct tegra_emc *emc = data;
@@ -849,12 +849,12 @@ static int tegra_emc_debug_min_rate_get(void *data, u64 *rate)
return 0;
}
-static int tegra_emc_debug_min_rate_set(void *data, u64 rate)
+static int tegra20_emc_debug_min_rate_set(void *data, u64 rate)
{
struct tegra_emc *emc = data;
int err;
- if (!tegra_emc_validate_rate(emc, rate))
+ if (!tegra20_emc_validate_rate(emc, rate))
return -EINVAL;
err = emc_set_min_rate(emc, rate, EMC_RATE_DEBUG);
@@ -866,11 +866,11 @@ static int tegra_emc_debug_min_rate_set(void *data, u64 rate)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(tegra_emc_debug_min_rate_fops,
- tegra_emc_debug_min_rate_get,
- tegra_emc_debug_min_rate_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(tegra20_emc_debug_min_rate_fops,
+ tegra20_emc_debug_min_rate_get,
+ tegra20_emc_debug_min_rate_set, "%llu\n");
-static int tegra_emc_debug_max_rate_get(void *data, u64 *rate)
+static int tegra20_emc_debug_max_rate_get(void *data, u64 *rate)
{
struct tegra_emc *emc = data;
@@ -879,12 +879,12 @@ static int tegra_emc_debug_max_rate_get(void *data, u64 *rate)
return 0;
}
-static int tegra_emc_debug_max_rate_set(void *data, u64 rate)
+static int tegra20_emc_debug_max_rate_set(void *data, u64 rate)
{
struct tegra_emc *emc = data;
int err;
- if (!tegra_emc_validate_rate(emc, rate))
+ if (!tegra20_emc_validate_rate(emc, rate))
return -EINVAL;
err = emc_set_max_rate(emc, rate, EMC_RATE_DEBUG);
@@ -896,11 +896,11 @@ static int tegra_emc_debug_max_rate_set(void *data, u64 rate)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(tegra_emc_debug_max_rate_fops,
- tegra_emc_debug_max_rate_get,
- tegra_emc_debug_max_rate_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(tegra20_emc_debug_max_rate_fops,
+ tegra20_emc_debug_max_rate_get,
+ tegra20_emc_debug_max_rate_set, "%llu\n");
-static void tegra_emc_debugfs_init(struct tegra_emc *emc)
+static void tegra20_emc_debugfs_init(struct tegra_emc *emc)
{
struct device *dev = emc->dev;
unsigned int i;
@@ -933,11 +933,11 @@ static void tegra_emc_debugfs_init(struct tegra_emc *emc)
emc->debugfs.root = debugfs_create_dir("emc", NULL);
debugfs_create_file("available_rates", 0444, emc->debugfs.root,
- emc, &tegra_emc_debug_available_rates_fops);
+ emc, &tegra20_emc_debug_available_rates_fops);
debugfs_create_file("min_rate", 0644, emc->debugfs.root,
- emc, &tegra_emc_debug_min_rate_fops);
+ emc, &tegra20_emc_debug_min_rate_fops);
debugfs_create_file("max_rate", 0644, emc->debugfs.root,
- emc, &tegra_emc_debug_max_rate_fops);
+ emc, &tegra20_emc_debug_max_rate_fops);
}
static inline struct tegra_emc *
@@ -1000,7 +1000,7 @@ static int emc_icc_set(struct icc_node *src, struct icc_node *dst)
return 0;
}
-static int tegra_emc_interconnect_init(struct tegra_emc *emc)
+static int tegra20_emc_interconnect_init(struct tegra_emc *emc)
{
const struct tegra_mc_soc *soc;
struct icc_node *node;
@@ -1055,25 +1055,25 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc)
return dev_err_probe(emc->dev, err, "failed to initialize ICC\n");
}
-static void devm_tegra_emc_unset_callback(void *data)
+static void devm_tegra20_emc_unset_callback(void *data)
{
tegra20_clk_set_emc_round_callback(NULL, NULL);
}
-static void devm_tegra_emc_unreg_clk_notifier(void *data)
+static void devm_tegra20_emc_unreg_clk_notifier(void *data)
{
struct tegra_emc *emc = data;
clk_notifier_unregister(emc->clk, &emc->clk_nb);
}
-static int tegra_emc_init_clk(struct tegra_emc *emc)
+static int tegra20_emc_init_clk(struct tegra_emc *emc)
{
int err;
tegra20_clk_set_emc_round_callback(emc_round_rate, emc);
- err = devm_add_action_or_reset(emc->dev, devm_tegra_emc_unset_callback,
+ err = devm_add_action_or_reset(emc->dev, devm_tegra20_emc_unset_callback,
NULL);
if (err)
return err;
@@ -1088,15 +1088,15 @@ static int tegra_emc_init_clk(struct tegra_emc *emc)
return dev_err_probe(emc->dev, err, "failed to register clk notifier\n");
err = devm_add_action_or_reset(emc->dev,
- devm_tegra_emc_unreg_clk_notifier, emc);
+ devm_tegra20_emc_unreg_clk_notifier, emc);
if (err)
return err;
return 0;
}
-static int tegra_emc_devfreq_target(struct device *dev, unsigned long *freq,
- u32 flags)
+static int tegra20_emc_devfreq_target(struct device *dev, unsigned long *freq,
+ u32 flags)
{
struct tegra_emc *emc = dev_get_drvdata(dev);
struct dev_pm_opp *opp;
@@ -1114,8 +1114,8 @@ static int tegra_emc_devfreq_target(struct device *dev, unsigned long *freq,
return emc_set_min_rate(emc, rate, EMC_RATE_DEVFREQ);
}
-static int tegra_emc_devfreq_get_dev_status(struct device *dev,
- struct devfreq_dev_status *stat)
+static int tegra20_emc_devfreq_get_dev_status(struct device *dev,
+ struct devfreq_dev_status *stat)
{
struct tegra_emc *emc = dev_get_drvdata(dev);
@@ -1137,13 +1137,13 @@ static int tegra_emc_devfreq_get_dev_status(struct device *dev,
return 0;
}
-static struct devfreq_dev_profile tegra_emc_devfreq_profile = {
+static struct devfreq_dev_profile tegra20_emc_devfreq_profile = {
.polling_ms = 30,
- .target = tegra_emc_devfreq_target,
- .get_dev_status = tegra_emc_devfreq_get_dev_status,
+ .target = tegra20_emc_devfreq_target,
+ .get_dev_status = tegra20_emc_devfreq_get_dev_status,
};
-static int tegra_emc_devfreq_init(struct tegra_emc *emc)
+static int tegra20_emc_devfreq_init(struct tegra_emc *emc)
{
struct devfreq *devfreq;
@@ -1165,7 +1165,7 @@ static int tegra_emc_devfreq_init(struct tegra_emc *emc)
writel_relaxed(0x00000000, emc->regs + EMC_STAT_LLMC_CONTROL);
writel_relaxed(0xffffffff, emc->regs + EMC_STAT_PWR_CLOCK_LIMIT);
- devfreq = devm_devfreq_add_device(emc->dev, &tegra_emc_devfreq_profile,
+ devfreq = devm_devfreq_add_device(emc->dev, &tegra20_emc_devfreq_profile,
DEVFREQ_GOV_SIMPLE_ONDEMAND,
&emc->ondemand_data);
if (IS_ERR(devfreq))
@@ -1175,7 +1175,7 @@ static int tegra_emc_devfreq_init(struct tegra_emc *emc)
return 0;
}
-static int tegra_emc_probe(struct platform_device *pdev)
+static int tegra20_emc_probe(struct platform_device *pdev)
{
struct tegra_core_opp_params opp_params = {};
struct device_node *np;
@@ -1191,7 +1191,7 @@ static int tegra_emc_probe(struct platform_device *pdev)
return -ENOMEM;
mutex_init(&emc->rate_lock);
- emc->clk_nb.notifier_call = tegra_emc_clk_change_notify;
+ emc->clk_nb.notifier_call = tegra20_emc_clk_change_notify;
emc->dev = &pdev->dev;
emc->regs = devm_platform_ioremap_resource(pdev, 0);
@@ -1202,22 +1202,22 @@ static int tegra_emc_probe(struct platform_device *pdev)
if (err)
return err;
- np = tegra_emc_find_node_by_ram_code(emc);
+ np = tegra20_emc_find_node_by_ram_code(emc);
if (np) {
- err = tegra_emc_load_timings_from_dt(emc, np);
+ err = tegra20_emc_load_timings_from_dt(emc, np);
of_node_put(np);
if (err)
return err;
}
- err = devm_request_irq(&pdev->dev, irq, tegra_emc_isr, 0,
+ err = devm_request_irq(&pdev->dev, irq, tegra20_emc_isr, 0,
dev_name(&pdev->dev), emc);
if (err) {
dev_err(&pdev->dev, "failed to request IRQ: %d\n", err);
return err;
}
- err = tegra_emc_init_clk(emc);
+ err = tegra20_emc_init_clk(emc);
if (err)
return err;
@@ -1228,10 +1228,10 @@ static int tegra_emc_probe(struct platform_device *pdev)
return err;
platform_set_drvdata(pdev, emc);
- tegra_emc_rate_requests_init(emc);
- tegra_emc_debugfs_init(emc);
- tegra_emc_interconnect_init(emc);
- tegra_emc_devfreq_init(emc);
+ tegra20_emc_rate_requests_init(emc);
+ tegra20_emc_debugfs_init(emc);
+ tegra20_emc_interconnect_init(emc);
+ tegra20_emc_devfreq_init(emc);
/*
* Don't allow the kernel module to be unloaded. Unloading adds some
@@ -1243,22 +1243,22 @@ static int tegra_emc_probe(struct platform_device *pdev)
return 0;
}
-static const struct of_device_id tegra_emc_of_match[] = {
+static const struct of_device_id tegra20_emc_of_match[] = {
{ .compatible = "nvidia,tegra20-emc", },
{},
};
-MODULE_DEVICE_TABLE(of, tegra_emc_of_match);
+MODULE_DEVICE_TABLE(of, tegra20_emc_of_match);
-static struct platform_driver tegra_emc_driver = {
- .probe = tegra_emc_probe,
+static struct platform_driver tegra20_emc_driver = {
+ .probe = tegra20_emc_probe,
.driver = {
.name = "tegra20-emc",
- .of_match_table = tegra_emc_of_match,
+ .of_match_table = tegra20_emc_of_match,
.suppress_bind_attrs = true,
.sync_state = icc_sync_state,
},
};
-module_platform_driver(tegra_emc_driver);
+module_platform_driver(tegra20_emc_driver);
MODULE_AUTHOR("Dmitry Osipenko <digetx@...il.com>");
MODULE_DESCRIPTION("NVIDIA Tegra20 EMC driver");
--
2.48.1
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