--- arch/arm/mach-msm/acpuclock-8960.c

+++ arch/arm/mach-msm/acpuclock-8960.c

@@ -10,6 +10,7 @@

* GNU General Public License for more details.

*/

+#define ZVMIN 900000

#define pr_fmt(fmt) "%s: " fmt, __func__

#include <linux/kernel.h>

@@ -40,6 +41,7 @@

#include <mach/sec_debug.h>

#endif

+

/*

* Source IDs.

* These must be negative to not overlap with the source IDs

@@ -72,6 +74,7 @@

#define HFPLL_NOMINAL_VDD 1050000

#define HFPLL_LOW_VDD 800000

+#define HFPLL_HIGH_VDD 1350000

#define HFPLL_LOW_VDD_PLL_L_MAX 0x28

#define SECCLKAGD BIT(4)

@@ -1663,8 +1666,8 @@ static const int krait_needs_vmin(void)

static void kraitv2_apply_vmin(struct acpu_level *tbl)

{

for (; tbl->speed.khz != 0; tbl++)

- if (tbl->vdd_core < 1150000)

- tbl->vdd_core = 1150000;

+ if (tbl->vdd_core < ZVMIN)

+ tbl->vdd_core = ZVMIN;

}

#ifdef CONFIG_SEC_L1_DCACHE_PANIC_CHK

@@ -1811,3 +1814,31 @@ struct acpuclk_soc_data acpuclk_8960_soc

struct acpuclk_soc_data acpuclk_8930_soc_data __initdata = {

.init = acpuclk_8960_init,

};

+

+#ifdef CONFIG_VDD_USERSPACE

+ssize_t acpuclk_get_vdd_levels_str(char *buf)

+{

+ int i, len = 0;

+ if (buf) {

+ mutex_lock(&driver_lock);

+ for (i = 0; acpu_freq_tbl[i].speed.khz; i++) {

+ len += sprintf(buf + len, "%8u: %4d\n", acpu_freq_tbl[i].speed.khz, acpu_freq_tbl[i].vdd_core);

+ }

+ mutex_unlock(&driver_lock);

+ }

+ return len;

+}

+

+void acpuclk_set_vdd(unsigned int khz, int vdd)

+{

+ int i;

+ mutex_lock(&driver_lock);

+ for (i = 0; acpu_freq_tbl[i].speed.khz; i++) {

+ if (khz == 0)

+ acpu_freq_tbl[i].vdd_core = min(max((unsigned int)(acpu_freq_tbl[i].vdd_core + vdd), (unsigned int)HFPLL_LOW_VDD), (unsigned int)HFPLL_HIGH_VDD);

+ else if (acpu_freq_tbl[i].speed.khz == khz)

+ acpu_freq_tbl[i].vdd_core = min(max((unsigned int)vdd, (unsigned int)HFPLL_LOW_VDD), (unsigned int)HFPLL_HIGH_VDD);

+ }

+ mutex_unlock(&driver_lock);

+}

+#endif