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power: reset: at91-poweroff: move shdwc related data to one structure 

Move SHDWC realted data to only one structure to have them grouped.
Inspired from commit 9be74f0d39 ("power: reset: at91-poweroff: make
mpddrc_base part of struct shdwc").

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Claudiu Beznea 2018-12-06 17:29:46 +00:00 committed by Sebastian Reichel
parent e2fb615b69
commit caa6e150f8
1 changed files with 25 additions and 23 deletions
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48
drivers/power/reset/at91-poweroff.c
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@ -51,14 +51,16 @@ static const char *shdwc_wakeup_modes[] = {
[AT91_SHDW_WKMODE0_ANYLEVEL] = "any",
};
static void __iomem *at91_shdwc_base;
static struct clk *sclk;
static void __iomem *mpddrc_base;
static struct shdwc {
struct clk *sclk;
void __iomem *shdwc_base;
void __iomem *mpddrc_base;
} at91_shdwc;
static void __init at91_wakeup_status(struct platform_device *pdev)
{
const char *reason;
u32 reg = readl(at91_shdwc_base + AT91_SHDW_SR);
u32 reg = readl(at91_shdwc.shdwc_base + AT91_SHDW_SR);
/* Simple power-on, just bail out */
if (!reg)
@ -92,9 +94,9 @@ static void at91_poweroff(void)
" b .\n\t"
:
: "r" (mpddrc_base),
: "r" (at91_shdwc.mpddrc_base),
"r" cpu_to_le32(AT91_DDRSDRC_LPDDR2_PWOFF),
"r" (at91_shdwc_base),
"r" (at91_shdwc.shdwc_base),
"r" cpu_to_le32(AT91_SHDW_KEY | AT91_SHDW_SHDW)
: "r6");
}
@ -144,7 +146,7 @@ static void at91_poweroff_dt_set_wakeup_mode(struct platform_device *pdev)
if (of_property_read_bool(np, "atmel,wakeup-rtt-timer"))
mode |= AT91_SHDW_RTTWKEN;
writel(wakeup_mode | mode, at91_shdwc_base + AT91_SHDW_MR);
writel(wakeup_mode | mode, at91_shdwc.shdwc_base + AT91_SHDW_MR);
}
static int __init at91_poweroff_probe(struct platform_device *pdev)
@ -155,15 +157,15 @@ static int __init at91_poweroff_probe(struct platform_device *pdev)
int ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
at91_shdwc_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(at91_shdwc_base))
return PTR_ERR(at91_shdwc_base);
at91_shdwc.shdwc_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(at91_shdwc.shdwc_base))
return PTR_ERR(at91_shdwc.shdwc_base);
sclk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(sclk))
return PTR_ERR(sclk);
at91_shdwc.sclk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(at91_shdwc.sclk))
return PTR_ERR(at91_shdwc.sclk);
ret = clk_prepare_enable(sclk);
ret = clk_prepare_enable(at91_shdwc.sclk);
if (ret) {
dev_err(&pdev->dev, "Could not enable slow clock\n");
return ret;
@ -176,20 +178,20 @@ static int __init at91_poweroff_probe(struct platform_device *pdev)
np = of_find_compatible_node(NULL, NULL, "atmel,sama5d3-ddramc");
if (np) {
mpddrc_base = of_iomap(np, 0);
at91_shdwc.mpddrc_base = of_iomap(np, 0);
of_node_put(np);
if (!mpddrc_base) {
if (!at91_shdwc.mpddrc_base) {
ret = -ENOMEM;
goto clk_disable;
}
ddr_type = readl(mpddrc_base + AT91_DDRSDRC_MDR) &
ddr_type = readl(at91_shdwc.mpddrc_base + AT91_DDRSDRC_MDR) &
AT91_DDRSDRC_MD;
if (ddr_type != AT91_DDRSDRC_MD_LPDDR2 &&
ddr_type != AT91_DDRSDRC_MD_LPDDR3) {
iounmap(mpddrc_base);
mpddrc_base = NULL;
iounmap(at91_shdwc.mpddrc_base);
at91_shdwc.mpddrc_base = NULL;
}
}
@ -198,7 +200,7 @@ static int __init at91_poweroff_probe(struct platform_device *pdev)
return 0;
clk_disable:
clk_disable_unprepare(sclk);
clk_disable_unprepare(at91_shdwc.sclk);
return ret;
}
@ -207,10 +209,10 @@ static int __exit at91_poweroff_remove(struct platform_device *pdev)
if (pm_power_off == at91_poweroff)
pm_power_off = NULL;
if (mpddrc_base)
iounmap(mpddrc_base);
if (at91_shdwc.mpddrc_base)
iounmap(at91_shdwc.mpddrc_base);
clk_disable_unprepare(sclk);
clk_disable_unprepare(at91_shdwc.sclk);
return 0;
}