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-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2420_data.c7
-rw-r--r--arch/arm/mach-omap2/pm24xx.c13
2 files changed, 6 insertions, 14 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index b5efe58c0be0..6a764af6c6d3 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -121,7 +121,12 @@ static struct omap_hwmod omap2420_i2c1_hwmod = {
121 }, 121 },
122 .class = &i2c_class, 122 .class = &i2c_class,
123 .dev_attr = &i2c_dev_attr, 123 .dev_attr = &i2c_dev_attr,
124 .flags = HWMOD_16BIT_REG, 124 /*
125 * From mach-omap2/pm24xx.c: "Putting MPU into the WFI state
126 * while a transfer is active seems to cause the I2C block to
127 * timeout. Why? Good question."
128 */
129 .flags = (HWMOD_16BIT_REG | HWMOD_BLOCK_WFI),
125}; 130};
126 131
127/* I2C2 */ 132/* I2C2 */
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index c333fa6dffa8..909ef53ba2ea 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -140,14 +140,6 @@ no_sleep:
140 return 0; 140 return 0;
141} 141}
142 142
143static int omap2_i2c_active(void)
144{
145 u32 l;
146
147 l = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
148 return l & (OMAP2420_EN_I2C2_MASK | OMAP2420_EN_I2C1_MASK);
149}
150
151static int sti_console_enabled; 143static int sti_console_enabled;
152 144
153static int omap2_allow_mpu_retention(void) 145static int omap2_allow_mpu_retention(void)
@@ -172,11 +164,6 @@ static int omap2_allow_mpu_retention(void)
172 164
173static void omap2_enter_mpu_retention(void) 165static void omap2_enter_mpu_retention(void)
174{ 166{
175 /* Putting MPU into the WFI state while a transfer is active
176 * seems to cause the I2C block to timeout. Why? Good question. */
177 if (omap2_i2c_active())
178 return;
179
180 /* The peripherals seem not to be able to wake up the MPU when 167 /* The peripherals seem not to be able to wake up the MPU when
181 * it is in retention mode. */ 168 * it is in retention mode. */
182 if (omap2_allow_mpu_retention()) { 169 if (omap2_allow_mpu_retention()) {