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ARM: at91: pm: Move global variables into at91_pm_data

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Instead of having separate global variables to hold IP addresses, move them
to struct at91_pm_data.

Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Alexandre Belloni 2017-01-31 14:15:48 +01:00
parent 4d767bc3c3
commit 9e07c3ce2c
1 changed files with 21 additions and 23 deletions
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44
arch/arm/mach-at91/pm.c
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@ -26,8 +26,6 @@
#include "generic.h"
#include "pm.h"
static void __iomem *pmc;
/*
* FIXME: this is needed to communicate between the pinctrl driver and
* the PM implementation in the machine. Possibly part of the PM
@ -40,17 +38,17 @@ extern void at91_pinctrl_gpio_resume(void);
#endif
static struct {
void __iomem *pmc;
void __iomem *ramc[2];
unsigned long uhp_udp_mask;
int memctrl;
} at91_pm_data;
static void __iomem *at91_ramc_base[2];
#define at91_ramc_read(id, field) \
__raw_readl(at91_ramc_base[id] + field)
__raw_readl(at91_pm_data.ramc[id] + field)
#define at91_ramc_write(id, field, value) \
__raw_writel(value, at91_ramc_base[id] + field)
__raw_writel(value, at91_pm_data.ramc[id] + field)
static int at91_pm_valid_state(suspend_state_t state)
{
@ -86,7 +84,7 @@ static int at91_pm_verify_clocks(void)
unsigned long scsr;
int i;
scsr = readl(pmc + AT91_PMC_SCSR);
scsr = readl(at91_pm_data.pmc + AT91_PMC_SCSR);
/* USB must not be using PLLB */
if ((scsr & at91_pm_data.uhp_udp_mask) != 0) {
@ -100,7 +98,7 @@ static int at91_pm_verify_clocks(void)
if ((scsr & (AT91_PMC_PCK0 << i)) == 0)
continue;
css = readl(pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
css = readl(at91_pm_data.pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
if (css != AT91_PMC_CSS_SLOW) {
pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css);
return 0;
@ -143,8 +141,8 @@ static void at91_pm_suspend(suspend_state_t state)
flush_cache_all();
outer_disable();
at91_suspend_sram_fn(pmc, at91_ramc_base[0],
at91_ramc_base[1], pm_data);
at91_suspend_sram_fn(at91_pm_data.pmc, at91_pm_data.ramc[0],
at91_pm_data.ramc[1], pm_data);
outer_resume();
}
@ -247,7 +245,7 @@ static void at91rm9200_standby(void)
" mcr p15, 0, %0, c7, c0, 4\n\t"
" str %5, [%1, %2]"
:
: "r" (0), "r" (at91_ramc_base[0]), "r" (AT91_MC_SDRAMC_LPR),
: "r" (0), "r" (at91_pm_data.ramc[0]), "r" (AT91_MC_SDRAMC_LPR),
"r" (1), "r" (AT91_MC_SDRAMC_SRR),
"r" (lpr));
}
@ -262,7 +260,7 @@ static void at91_ddr_standby(void)
u32 lpr0, lpr1 = 0;
u32 saved_lpr0, saved_lpr1 = 0;
if (at91_ramc_base[1]) {
if (at91_pm_data.ramc[1]) {
saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR);
lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB;
lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH;
@ -274,13 +272,13 @@ static void at91_ddr_standby(void)
/* self-refresh mode now */
at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
if (at91_ramc_base[1])
if (at91_pm_data.ramc[1])
at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1);
cpu_do_idle();
at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
if (at91_ramc_base[1])
if (at91_pm_data.ramc[1])
at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
}
@ -308,7 +306,7 @@ static void at91sam9_sdram_standby(void)
u32 lpr0, lpr1 = 0;
u32 saved_lpr0, saved_lpr1 = 0;
if (at91_ramc_base[1]) {
if (at91_pm_data.ramc[1]) {
saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);
lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;
lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;
@ -320,13 +318,13 @@ static void at91sam9_sdram_standby(void)
/* self-refresh mode now */
at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0);
if (at91_ramc_base[1])
if (at91_pm_data.ramc[1])
at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);
cpu_do_idle();
at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0);
if (at91_ramc_base[1])
if (at91_pm_data.ramc[1])
at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
}
@ -346,8 +344,8 @@ static __init void at91_dt_ramc(void)
const void *standby = NULL;
for_each_matching_node_and_match(np, ramc_ids, &of_id) {
at91_ramc_base[idx] = of_iomap(np, 0);
if (!at91_ramc_base[idx])
at91_pm_data.ramc[idx] = of_iomap(np, 0);
if (!at91_pm_data.ramc[idx])
panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx);
if (!standby)
@ -373,12 +371,12 @@ static void at91rm9200_idle(void)
* Disable the processor clock. The processor will be automatically
* re-enabled by an interrupt or by a reset.
*/
writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR);
writel(AT91_PMC_PCK, at91_pm_data.pmc + AT91_PMC_SCDR);
}
static void at91sam9_idle(void)
{
writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR);
writel(AT91_PMC_PCK, at91_pm_data.pmc + AT91_PMC_SCDR);
cpu_do_idle();
}
@ -447,8 +445,8 @@ static void __init at91_pm_init(void (*pm_idle)(void))
platform_device_register(&at91_cpuidle_device);
pmc_np = of_find_matching_node(NULL, atmel_pmc_ids);
pmc = of_iomap(pmc_np, 0);
if (!pmc) {
at91_pm_data.pmc = of_iomap(pmc_np, 0);
if (!at91_pm_data.pmc) {
pr_err("AT91: PM not supported, PMC not found\n");
return;
}