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Subject[PATCH 3/6] power: reset: at91-poweroff: make mpddrc_base part of struct shdwc
Date
Make mpddrc_base part of struct shdwc since there is also only one
instance of struct shdwc *at91_shdwc in system and to have all data
specific to SHDWC grouped together.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/power/reset/at91-sama5d2_shdwc.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c
index 94ad79d0d82e..c9994103248e 100644
--- a/drivers/power/reset/at91-sama5d2_shdwc.c
+++ b/drivers/power/reset/at91-sama5d2_shdwc.c
@@ -71,6 +71,7 @@ struct shdwc_config {
struct shdwc {
const struct shdwc_config *cfg;
void __iomem *at91_shdwc_base;
+ void __iomem *mpddrc_base;
void __iomem *pmc_base;
};

@@ -80,7 +81,6 @@ struct shdwc {
*/
static struct shdwc *at91_shdwc;
static struct clk *sclk;
-static void __iomem *mpddrc_base;

static const unsigned long long sdwc_dbc_period[] = {
0, 3, 32, 512, 4096, 32768,
@@ -136,7 +136,7 @@ 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->at91_shdwc_base),
"r" cpu_to_le32(AT91_SHDW_KEY | AT91_SHDW_SHDW),
@@ -305,21 +305,22 @@ static int __init at91_shdwc_probe(struct platform_device *pdev)
goto unmap;
}

- 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 unmap;
}

pm_power_off = at91_poweroff;

- ddr_type = readl(mpddrc_base + AT91_DDRSDRC_MDR) & AT91_DDRSDRC_MD;
+ 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;
}

return 0;
@@ -343,8 +344,8 @@ static int __exit at91_shdwc_remove(struct platform_device *pdev)
writel(0, shdw->at91_shdwc_base + AT91_SHDW_MR);
writel(0, shdw->at91_shdwc_base + AT91_SHDW_WUIR);

- if (mpddrc_base)
- iounmap(mpddrc_base);
+ if (shdw->mpddrc_base)
+ iounmap(shdw->mpddrc_base);
iounmap(shdw->pmc_base);

clk_disable_unprepare(sclk);
--
2.7.4
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