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| author | Claudiu.Beznea@microchip.com <Claudiu.Beznea@microchip.com> | 2020-01-21 11:03:32 +0100 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2020-03-08 19:37:35 +0100 |
| commit | 583ef884c8dc8e5ec9a7fde12d40ef7fdf18f5fb (patch) | |
| tree | f8802a882cd596a81e4329e656d01339f69ac5e9 /drivers/power/reset | |
| parent | power: reset: at91-reset: pass rstc base address to at91_reset_status() (diff) | |
| download | linux-583ef884c8dc8e5ec9a7fde12d40ef7fdf18f5fb.tar.xz linux-583ef884c8dc8e5ec9a7fde12d40ef7fdf18f5fb.zip | |
power: reset: at91-reset: devm_kzalloc() for at91_reset data structure
Allocate at91_reset data on probe and set it as platform data.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power/reset')
| -rw-r--r-- | drivers/power/reset/at91-reset.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index bd05496c5ac7..7ba77555e9e1 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -56,8 +56,6 @@ struct at91_reset { struct notifier_block nb; }; -static struct at91_reset *reset; - /* * unless the SDRAM is cleanly shutdown before we hit the * reset register it can be left driving the data bus and @@ -66,6 +64,8 @@ static struct at91_reset *reset; static int at91sam9260_restart(struct notifier_block *this, unsigned long mode, void *cmd) { + struct at91_reset *reset = container_of(this, struct at91_reset, nb); + asm volatile( /* Align to cache lines */ ".balign 32\n\t" @@ -93,6 +93,8 @@ static int at91sam9260_restart(struct notifier_block *this, unsigned long mode, static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode, void *cmd) { + struct at91_reset *reset = container_of(this, struct at91_reset, nb); + asm volatile( /* * Test wether we have a second RAM controller to care @@ -137,6 +139,8 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode, static int sama5d3_restart(struct notifier_block *this, unsigned long mode, void *cmd) { + struct at91_reset *reset = container_of(this, struct at91_reset, nb); + writel(cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST), reset->rstc_base); @@ -146,6 +150,8 @@ static int sama5d3_restart(struct notifier_block *this, unsigned long mode, static int samx7_restart(struct notifier_block *this, unsigned long mode, void *cmd) { + struct at91_reset *reset = container_of(this, struct at91_reset, nb); + writel(cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PROCRST), reset->rstc_base); @@ -210,6 +216,7 @@ MODULE_DEVICE_TABLE(of, at91_reset_of_match); static int __init at91_reset_probe(struct platform_device *pdev) { const struct of_device_id *match; + struct at91_reset *reset; struct device_node *np; int ret, idx = 0; @@ -250,6 +257,8 @@ static int __init at91_reset_probe(struct platform_device *pdev) return ret; } + platform_set_drvdata(pdev, reset); + ret = register_restart_handler(&reset->nb); if (ret) { clk_disable_unprepare(reset->sclk); @@ -263,6 +272,8 @@ static int __init at91_reset_probe(struct platform_device *pdev) static int __exit at91_reset_remove(struct platform_device *pdev) { + struct at91_reset *reset = platform_get_drvdata(pdev); + unregister_restart_handler(&reset->nb); clk_disable_unprepare(reset->sclk); |