[ARM] pxa: better MFP low power state support for pxa25x/pxa27x

[deliverable/linux.git] / arch / arm / mach-pxa / pxa25x.c

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 305452b56e91dfcda49e81c5876c0ed0ca935583..f0eda2094494ab3d1a460cda10ddfa6a112d5aea 100644 (file)
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -203,33 +203,17 @@ static struct clk pxa25x_clks[] = {
  * More ones like CP and general purpose register values are preserved
  * with the stack pointer in sleep.S.
  */
-enum { SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2,
-
-       SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U,
-       SLEEP_SAVE_GAFR1_L, SLEEP_SAVE_GAFR1_U,
-       SLEEP_SAVE_GAFR2_L, SLEEP_SAVE_GAFR2_U,
-
+enum {
        SLEEP_SAVE_PSTR,
-
        SLEEP_SAVE_CKEN,
-
        SLEEP_SAVE_COUNT
 };
 
 
 static void pxa25x_cpu_pm_save(unsigned long *sleep_save)
 {
-       SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2);
-
-       SAVE(GAFR0_L); SAVE(GAFR0_U);
-       SAVE(GAFR1_L); SAVE(GAFR1_U);
-       SAVE(GAFR2_L); SAVE(GAFR2_U);
-
        SAVE(CKEN);
        SAVE(PSTR);
-
-       /* Clear GPIO transition detect bits */
-       GEDR0 = GEDR0; GEDR1 = GEDR1; GEDR2 = GEDR2;
 }
 
 static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
@@ -237,14 +221,6 @@ static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
        /* ensure not to come back here if it wasn't intended */
        PSPR = 0;
 
-       /* restore registers */
-       RESTORE(GAFR0_L); RESTORE(GAFR0_U);
-       RESTORE(GAFR1_L); RESTORE(GAFR1_U);
-       RESTORE(GAFR2_L); RESTORE(GAFR2_U);
-       RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2);
-
-       PSSR = PSSR_RDH | PSSR_PH;
-
        RESTORE(CKEN);
        RESTORE(PSTR);
 }
@@ -329,6 +305,8 @@ static struct platform_device *pxa25x_devices[] __initdata = {
 static struct sys_device pxa25x_sysdev[] = {
        {
                .cls    = &pxa_irq_sysclass,
+       }, {
+               .cls    = &pxa2xx_mfp_sysclass,
        }, {
                .cls    = &pxa_gpio_sysclass,
        },