20 files changed, 119 insertions, 103 deletions

diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index 7a065f0cf63..ceb52db1e2f 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -189,8 +189,8 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
                 return PTR_ERR(emc_clk);
         }
 
-        clk_enable(emc_clk);
-        clk_enable(cpu_clk);
+        clk_prepare_enable(emc_clk);
+        clk_prepare_enable(cpu_clk);
 
         cpufreq_frequency_table_cpuinfo(policy, freq_table);
         cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
@@ -212,7 +212,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 static int tegra_cpu_exit(struct cpufreq_policy *policy)
 {
         cpufreq_frequency_table_cpuinfo(policy, freq_table);
-        clk_disable(emc_clk);
+        clk_disable_unprepare(emc_clk);
         clk_put(emc_clk);
         clk_put(cpu_clk);
         return 0;
diff --git a/arch/arm/mach-tegra/dma.c b/arch/arm/mach-tegra/dma.c
index abea4f6e2dd..29c5114d607 100644
--- a/arch/arm/mach-tegra/dma.c
+++ b/arch/arm/mach-tegra/dma.c
@@ -714,13 +714,13 @@ int __init tegra_dma_init(void)
 
         bitmap_fill(channel_usage, NV_DMA_MAX_CHANNELS);
 
-        c = clk_get_sys("tegra-dma", NULL);
+        c = clk_get_sys("tegra-apbdma", NULL);
         if (IS_ERR(c)) {
                 pr_err("Unable to get clock for APB DMA\n");
                 ret = PTR_ERR(c);
                 goto fail;
         }
-        ret = clk_enable(c);
+        ret = clk_prepare_enable(c);
         if (ret != 0) {
                 pr_err("Unable to enable clock for APB DMA\n");
                 goto fail;
diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
index 0e09137506e..d3ad5150d66 100644
--- a/arch/arm/mach-tegra/pcie.c
+++ b/arch/arm/mach-tegra/pcie.c
@@ -723,9 +723,9 @@ static int tegra_pcie_power_regate(void)
 
         tegra_pcie_xclk_clamp(false);
 
-        clk_enable(tegra_pcie.afi_clk);
-        clk_enable(tegra_pcie.pex_clk);
-        return clk_enable(tegra_pcie.pll_e);
+        clk_prepare_enable(tegra_pcie.afi_clk);
+        clk_prepare_enable(tegra_pcie.pex_clk);
+        return clk_prepare_enable(tegra_pcie.pll_e);
 }
 
 static int tegra_pcie_clocks_get(void)
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index f5b12fb4ff1..15d506501cc 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -146,7 +146,7 @@ int tegra_powergate_sequence_power_up(int id, struct clk *clk)
         if (ret)
                 goto err_power;
 
-        ret = clk_enable(clk);
+        ret = clk_prepare_enable(clk);
         if (ret)
                 goto err_clk;
 
@@ -162,7 +162,7 @@ int tegra_powergate_sequence_power_up(int id, struct clk *clk)
         return 0;
 
 err_clamp:
-        clk_disable(clk);
+        clk_disable_unprepare(clk);
 err_clk:
         tegra_powergate_power_off(id);
 err_power:
diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c
index b59315ce369..a703844b206 100644
--- a/arch/arm/mach-tegra/tegra2_clocks.c
+++ b/arch/arm/mach-tegra/tegra2_clocks.c
@@ -69,6 +69,8 @@
 
 #define PERIPH_CLK_SOURCE_MASK          (3<<30)
 #define PERIPH_CLK_SOURCE_SHIFT         30
+#define PERIPH_CLK_SOURCE_PWM_MASK      (7<<28)
+#define PERIPH_CLK_SOURCE_PWM_SHIFT     28
 #define PERIPH_CLK_SOURCE_ENABLE        (1<<28)
 #define PERIPH_CLK_SOURCE_DIVU71_MASK   0xFF
 #define PERIPH_CLK_SOURCE_DIVU16_MASK   0xFFFF
@@ -908,9 +910,20 @@ static void tegra2_periph_clk_init(struct clk *c)
         u32 val = clk_readl(c->reg);
         const struct clk_mux_sel *mux = NULL;
         const struct clk_mux_sel *sel;
+        u32 shift;
+        u32 mask;
+
+        if (c->flags & MUX_PWM) {
+                shift = PERIPH_CLK_SOURCE_PWM_SHIFT;
+                mask = PERIPH_CLK_SOURCE_PWM_MASK;
+        } else {
+                shift = PERIPH_CLK_SOURCE_SHIFT;
+                mask = PERIPH_CLK_SOURCE_MASK;
+        }
+
         if (c->flags & MUX) {
                 for (sel = c->inputs; sel->input != NULL; sel++) {
-                        if (val >> PERIPH_CLK_SOURCE_SHIFT == sel->value)
+                        if ((val & mask) >> shift == sel->value)
                                 mux = sel;
                 }
                 BUG_ON(!mux);
@@ -1023,12 +1036,23 @@ static int tegra2_periph_clk_set_parent(struct clk *c, struct clk *p)
 {
         u32 val;
         const struct clk_mux_sel *sel;
+        u32 mask, shift;
+
         pr_debug("%s: %s %s\n", __func__, c->name, p->name);
+
+        if (c->flags & MUX_PWM) {
+                shift = PERIPH_CLK_SOURCE_PWM_SHIFT;
+                mask = PERIPH_CLK_SOURCE_PWM_MASK;
+        } else {
+                shift = PERIPH_CLK_SOURCE_SHIFT;
+                mask = PERIPH_CLK_SOURCE_MASK;
+        }
+
         for (sel = c->inputs; sel->input != NULL; sel++) {
                 if (sel->input == p) {
                         val = clk_readl(c->reg);
-                        val &= ~PERIPH_CLK_SOURCE_MASK;
-                        val |= (sel->value) << PERIPH_CLK_SOURCE_SHIFT;
+                        val &= ~mask;
+                        val |= (sel->value) << shift;
 
                         if (c->refcnt)
                                 clk_enable(p);
@@ -2149,14 +2173,14 @@ static struct clk tegra_clk_emc = {
         }
 
 static struct clk tegra_list_clks[] = {
-        PERIPH_CLK("apbdma",    "tegra-dma",            NULL,   34,     0,      108000000, mux_pclk,                    0),
+        PERIPH_CLK("apbdma",    "tegra-apbdma",         NULL,   34,     0,      108000000, mux_pclk,                    0),
         PERIPH_CLK("rtc",       "rtc-tegra",            NULL,   4,      0,      32768,     mux_clk_32k,                 PERIPH_NO_RESET),
         PERIPH_CLK("timer",     "timer",                NULL,   5,      0,      26000000,  mux_clk_m,                   0),
         PERIPH_CLK("i2s1",      "tegra20-i2s.0",        NULL,   11,     0x100,  26000000,  mux_pllaout0_audio2x_pllp_clkm,      MUX | DIV_U71),
         PERIPH_CLK("i2s2",      "tegra20-i2s.1",        NULL,   18,     0x104,  26000000,  mux_pllaout0_audio2x_pllp_clkm,      MUX | DIV_U71),
         PERIPH_CLK("spdif_out", "spdif_out",            NULL,   10,     0x108,  100000000, mux_pllaout0_audio2x_pllp_clkm,      MUX | DIV_U71),
         PERIPH_CLK("spdif_in",  "spdif_in",             NULL,   10,     0x10c,  100000000, mux_pllp_pllc_pllm,          MUX | DIV_U71),
-        PERIPH_CLK("pwm",       "pwm",                  NULL,   17,     0x110,  432000000, mux_pllp_pllc_audio_clkm_clk32,      MUX | DIV_U71),
+        PERIPH_CLK("pwm",       "tegra-pwm",            NULL,   17,     0x110,  432000000, mux_pllp_pllc_audio_clkm_clk32,      MUX | DIV_U71 | MUX_PWM),
         PERIPH_CLK("spi",       "spi",                  NULL,   43,     0x114,  40000000,  mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
         PERIPH_CLK("xio",       "xio",                  NULL,   45,     0x120,  150000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
         PERIPH_CLK("twc",       "twc",                  NULL,   16,     0x12c,  150000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
@@ -2189,11 +2213,11 @@ static struct clk tegra_list_clks[] = {
         PERIPH_CLK("i2c2_i2c",  "tegra-i2c.1",          "i2c",  0,      0,      72000000,  mux_pllp_out3,                       0),
         PERIPH_CLK("i2c3_i2c",  "tegra-i2c.2",          "i2c",  0,      0,      72000000,  mux_pllp_out3,                       0),
         PERIPH_CLK("dvc_i2c",   "tegra-i2c.3",          "i2c",  0,      0,      72000000,  mux_pllp_out3,                       0),
-        PERIPH_CLK("uarta",     "uart.0",               NULL,   6,      0x178,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
-        PERIPH_CLK("uartb",     "uart.1",               NULL,   7,      0x17c,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
-        PERIPH_CLK("uartc",     "uart.2",               NULL,   55,     0x1a0,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
-        PERIPH_CLK("uartd",     "uart.3",               NULL,   65,     0x1c0,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
-        PERIPH_CLK("uarte",     "uart.4",               NULL,   66,     0x1c4,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
+        PERIPH_CLK("uarta",     "tegra-uart.0",         NULL,   6,      0x178,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
+        PERIPH_CLK("uartb",     "tegra-uart.1",         NULL,   7,      0x17c,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
+        PERIPH_CLK("uartc",     "tegra-uart.2",         NULL,   55,     0x1a0,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
+        PERIPH_CLK("uartd",     "tegra-uart.3",         NULL,   65,     0x1c0,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
+        PERIPH_CLK("uarte",     "tegra-uart.4",         NULL,   66,     0x1c4,  600000000, mux_pllp_pllc_pllm_clkm,     MUX),
         PERIPH_CLK("3d",        "3d",                   NULL,   24,     0x158,  300000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | PERIPH_MANUAL_RESET), /* scales with voltage and process_id */
         PERIPH_CLK("2d",        "2d",                   NULL,   21,     0x15c,  300000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71), /* scales with voltage and process_id */
         PERIPH_CLK("vi",        "tegra_camera",         "vi",   20,     0x148,  150000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71), /* scales with voltage and process_id */
@@ -2245,20 +2269,16 @@ static struct clk tegra_list_clks[] = {
  * table under two names.
  */
 static struct clk_duplicate tegra_clk_duplicates[] = {
-        CLK_DUPLICATE("uarta",  "tegra_uart.0", NULL),
-        CLK_DUPLICATE("uartb",  "tegra_uart.1", NULL),
-        CLK_DUPLICATE("uartc",  "tegra_uart.2", NULL),
-        CLK_DUPLICATE("uartd",  "tegra_uart.3", NULL),
-        CLK_DUPLICATE("uarte",  "tegra_uart.4", NULL),
+        CLK_DUPLICATE("uarta",  "serial8250.0", NULL),
+        CLK_DUPLICATE("uartb",  "serial8250.1", NULL),
+        CLK_DUPLICATE("uartc",  "serial8250.2", NULL),
+        CLK_DUPLICATE("uartd",  "serial8250.3", NULL),
+        CLK_DUPLICATE("uarte",  "serial8250.4", NULL),
         CLK_DUPLICATE("usbd", "utmip-pad", NULL),
         CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
         CLK_DUPLICATE("usbd", "tegra-otg", NULL),
         CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"),
         CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"),
-        CLK_DUPLICATE("pwm", "tegra_pwm.0", NULL),
-        CLK_DUPLICATE("pwm", "tegra_pwm.1", NULL),
-        CLK_DUPLICATE("pwm", "tegra_pwm.2", NULL),
-        CLK_DUPLICATE("pwm", "tegra_pwm.3", NULL),
         CLK_DUPLICATE("host1x", "tegra_grhost", "host1x"),
         CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"),
         CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"),
diff --git a/arch/arm/mach-tegra/tegra30_clocks.c b/arch/arm/mach-tegra/tegra30_clocks.c
index e33fe4b14a2..6674f100e16 100644
--- a/arch/arm/mach-tegra/tegra30_clocks.c
+++ b/arch/arm/mach-tegra/tegra30_clocks.c
@@ -2871,7 +2871,7 @@ static struct clk tegra30_clk_twd = {
                 },                                      \
         }
 struct clk tegra_list_clks[] = {
-        PERIPH_CLK("apbdma",    "tegra-dma",            NULL,   34,     0,      26000000,  mux_clk_m,                   0),
+        PERIPH_CLK("apbdma",    "tegra-apbdma",         NULL,   34,     0,      26000000,  mux_clk_m,                   0),
         PERIPH_CLK("rtc",       "rtc-tegra",            NULL,   4,      0,      32768,     mux_clk_32k,                 PERIPH_NO_RESET | PERIPH_ON_APB),
         PERIPH_CLK("kbc",       "tegra-kbc",            NULL,   36,     0,      32768,     mux_clk_32k,                 PERIPH_NO_RESET | PERIPH_ON_APB),
         PERIPH_CLK("timer",     "timer",                NULL,   5,      0,      26000000,  mux_clk_m,                   0),
@@ -2886,7 +2886,7 @@ struct clk tegra_list_clks[] = {
         PERIPH_CLK("i2s4",      "tegra30-i2s.4",        NULL,   102,    0x3c0,  26000000,  mux_pllaout0_audio4_2x_pllp_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
         PERIPH_CLK("spdif_out", "tegra30-spdif",        "spdif_out",    10,     0x108,  100000000, mux_pllaout0_audio_2x_pllp_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
         PERIPH_CLK("spdif_in",  "tegra30-spdif",        "spdif_in",     10,     0x10c,  100000000, mux_pllp_pllc_pllm,          MUX | DIV_U71 | PERIPH_ON_APB),
-        PERIPH_CLK("pwm",       "pwm",                  NULL,   17,     0x110,  432000000, mux_pllp_pllc_clk32_clkm,    MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB),
+        PERIPH_CLK("pwm",       "tegra-pwm",            NULL,   17,     0x110,  432000000, mux_pllp_pllc_clk32_clkm,    MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB),
         PERIPH_CLK("d_audio",   "tegra30-ahub",         "d_audio", 106, 0x3d0,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
         PERIPH_CLK("dam0",      "tegra30-dam.0",        NULL,   108,    0x3d8,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
         PERIPH_CLK("dam1",      "tegra30-dam.1",        NULL,   109,    0x3dc,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
@@ -2924,16 +2924,11 @@ struct clk tegra_list_clks[] = {
         PERIPH_CLK("i2c3",      "tegra-i2c.2",          NULL,   67,     0x1b8,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
         PERIPH_CLK("i2c4",      "tegra-i2c.3",          NULL,   103,    0x3c4,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
         PERIPH_CLK("i2c5",      "tegra-i2c.4",          NULL,   47,     0x128,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
-        PERIPH_CLK("uarta",     "tegra_uart.0",         NULL,   6,      0x178,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uartb",     "tegra_uart.1",         NULL,   7,      0x17c,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uartc",     "tegra_uart.2",         NULL,   55,     0x1a0,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uartd",     "tegra_uart.3",         NULL,   65,     0x1c0,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uarte",     "tegra_uart.4",         NULL,   66,     0x1c4,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uarta_dbg", "serial8250.0",         "uarta", 6,     0x178,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uartb_dbg", "serial8250.0",         "uartb", 7,     0x17c,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uartc_dbg", "serial8250.0",         "uartc", 55,    0x1a0,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uartd_dbg", "serial8250.0",         "uartd", 65,    0x1c0,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
-        PERIPH_CLK("uarte_dbg", "serial8250.0",         "uarte", 66,    0x1c4,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
+        PERIPH_CLK("uarta",     "tegra-uart.0",         NULL,   6,      0x178,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
+        PERIPH_CLK("uartb",     "tegra-uart.1",         NULL,   7,      0x17c,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
+        PERIPH_CLK("uartc",     "tegra-uart.2",         NULL,   55,     0x1a0,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
+        PERIPH_CLK("uartd",     "tegra-uart.3",         NULL,   65,     0x1c0,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
+        PERIPH_CLK("uarte",     "tegra-uart.4",         NULL,   66,     0x1c4,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
         PERIPH_CLK_EX("vi",     "tegra_camera",         "vi",   20,     0x148,  425000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT,    &tegra_vi_clk_ops),
         PERIPH_CLK("3d",        "3d",                   NULL,   24,     0x158,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET),
         PERIPH_CLK("3d2",       "3d2",                  NULL,   98,     0x3b0,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET),
@@ -2983,6 +2978,11 @@ struct clk tegra_list_clks[] = {
  * table under two names.
  */
 struct clk_duplicate tegra_clk_duplicates[] = {
+        CLK_DUPLICATE("uarta",  "serial8250.0", NULL),
+        CLK_DUPLICATE("uartb",  "serial8250.1", NULL),
+        CLK_DUPLICATE("uartc",  "serial8250.2", NULL),
+        CLK_DUPLICATE("uartd",  "serial8250.3", NULL),
+        CLK_DUPLICATE("uarte",  "serial8250.4", NULL),
         CLK_DUPLICATE("usbd", "utmip-pad", NULL),
         CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
         CLK_DUPLICATE("usbd", "tegra-otg", NULL),
@@ -2990,10 +2990,6 @@ struct clk_duplicate tegra_clk_duplicates[] = {
         CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"),
         CLK_DUPLICATE("dsib", "tegradc.0", "dsib"),
         CLK_DUPLICATE("dsia", "tegradc.1", "dsia"),
-        CLK_DUPLICATE("pwm", "tegra_pwm.0", NULL),
-        CLK_DUPLICATE("pwm", "tegra_pwm.1", NULL),
-        CLK_DUPLICATE("pwm", "tegra_pwm.2", NULL),
-        CLK_DUPLICATE("pwm", "tegra_pwm.3", NULL),
         CLK_DUPLICATE("bsev", "tegra-avp", "bsev"),
         CLK_DUPLICATE("bsev", "nvavp", "bsev"),
         CLK_DUPLICATE("vde", "tegra-aes", "vde"),
diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c
index 315672c7bd4..57b5bdc13b9 100644
--- a/arch/arm/mach-tegra/timer.c
+++ b/arch/arm/mach-tegra/timer.c
@@ -189,7 +189,7 @@ static void __init tegra_init_timer(void)
                         " Assuming 12Mhz input clock.\n");
                 rate = 12000000;
         } else {
-                clk_enable(clk);
+                clk_prepare_enable(clk);
                 rate = clk_get_rate(clk);
         }
 
@@ -201,7 +201,7 @@ static void __init tegra_init_timer(void)
         if (IS_ERR(clk))
                 pr_warn("Unable to get rtc-tegra clock\n");
         else
-                clk_enable(clk);
+                clk_prepare_enable(clk);
 
         switch (rate) {
         case 12000000:
diff --git a/arch/arm/mach-tegra/usb_phy.c b/arch/arm/mach-tegra/usb_phy.c
index 54e353c8e30..022b33a05c3 100644
--- a/arch/arm/mach-tegra/usb_phy.c
+++ b/arch/arm/mach-tegra/usb_phy.c
@@ -247,7 +247,7 @@ static void utmip_pad_power_on(struct tegra_usb_phy *phy)
         unsigned long val, flags;
         void __iomem *base = phy->pad_regs;
 
-        clk_enable(phy->pad_clk);
+        clk_prepare_enable(phy->pad_clk);
 
         spin_lock_irqsave(&utmip_pad_lock, flags);
 
@@ -259,7 +259,7 @@ static void utmip_pad_power_on(struct tegra_usb_phy *phy)
 
         spin_unlock_irqrestore(&utmip_pad_lock, flags);
 
-        clk_disable(phy->pad_clk);
+        clk_disable_unprepare(phy->pad_clk);
 }
 
 static int utmip_pad_power_off(struct tegra_usb_phy *phy)
@@ -272,7 +272,7 @@ static int utmip_pad_power_off(struct tegra_usb_phy *phy)
                 return -EINVAL;
         }
 
-        clk_enable(phy->pad_clk);
+        clk_prepare_enable(phy->pad_clk);
 
         spin_lock_irqsave(&utmip_pad_lock, flags);
 
@@ -284,7 +284,7 @@ static int utmip_pad_power_off(struct tegra_usb_phy *phy)
 
         spin_unlock_irqrestore(&utmip_pad_lock, flags);
 
-        clk_disable(phy->pad_clk);
+        clk_disable_unprepare(phy->pad_clk);
 
         return 0;
 }
@@ -580,7 +580,7 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy)
         msleep(5);
         gpio_direction_output(config->reset_gpio, 1);
 
-        clk_enable(phy->clk);
+        clk_prepare_enable(phy->clk);
         msleep(1);
 
         val = readl(base + USB_SUSP_CTRL);
@@ -689,7 +689,7 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
                 err = PTR_ERR(phy->pll_u);
                 goto err0;
         }
-        clk_enable(phy->pll_u);
+        clk_prepare_enable(phy->pll_u);
 
         parent_rate = clk_get_rate(clk_get_parent(phy->pll_u));
         for (i = 0; i < ARRAY_SIZE(tegra_freq_table); i++) {
@@ -735,7 +735,7 @@ struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
         return phy;
 
 err1:
-        clk_disable(phy->pll_u);
+        clk_disable_unprepare(phy->pll_u);
         clk_put(phy->pll_u);
 err0:
         kfree(phy);
@@ -810,7 +810,7 @@ void tegra_usb_phy_close(struct tegra_usb_phy *phy)
                 clk_put(phy->clk);
         else
                 utmip_pad_close(phy);
-        clk_disable(phy->pll_u);
+        clk_disable_unprepare(phy->pll_u);
         clk_put(phy->pll_u);
         kfree(phy);
 }
diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 422a9766c7c..ac236f6724f 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -572,7 +572,7 @@ static void aes_workqueue_handler(struct work_struct *work)
         struct tegra_aes_dev *dd = aes_dev;
         int ret;
 
-        ret = clk_enable(dd->aes_clk);
+        ret = clk_prepare_enable(dd->aes_clk);
         if (ret)
                 BUG_ON("clock enable failed");
 
@@ -581,7 +581,7 @@ static void aes_workqueue_handler(struct work_struct *work)
                 ret = tegra_aes_handle_req(dd);
         } while (!ret);
 
-        clk_disable(dd->aes_clk);
+        clk_disable_unprepare(dd->aes_clk);
 }
 
 static irqreturn_t aes_irq(int irq, void *dev_id)
@@ -673,7 +673,7 @@ static int tegra_aes_get_random(struct crypto_rng *tfm, u8 *rdata,
         /* take mutex to access the aes hw */
         mutex_lock(&aes_lock);
 
-        ret = clk_enable(dd->aes_clk);
+        ret = clk_prepare_enable(dd->aes_clk);
         if (ret)
                 return ret;
 
@@ -700,7 +700,7 @@ static int tegra_aes_get_random(struct crypto_rng *tfm, u8 *rdata,
         }
 
 out:
-        clk_disable(dd->aes_clk);
+        clk_disable_unprepare(dd->aes_clk);
         mutex_unlock(&aes_lock);
 
         dev_dbg(dd->dev, "%s: done\n", __func__);
@@ -758,7 +758,7 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed,
 
         dd->flags = FLAGS_ENCRYPT | FLAGS_RNG;
 
-        ret = clk_enable(dd->aes_clk);
+        ret = clk_prepare_enable(dd->aes_clk);
         if (ret)
                 return ret;
 
@@ -788,7 +788,7 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed,
         memcpy(dd->dt, dt, DEFAULT_RNG_BLK_SZ);
 
 out:
-        clk_disable(dd->aes_clk);
+        clk_disable_unprepare(dd->aes_clk);
         mutex_unlock(&aes_lock);
 
         dev_dbg(dd->dev, "%s: done\n", __func__);
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 8b2e555a956..3da7ee3eb50 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -341,7 +341,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
         u32 val;
         int err = 0;
 
-        clk_enable(i2c_dev->clk);
+        clk_prepare_enable(i2c_dev->clk);
 
         tegra_periph_reset_assert(i2c_dev->clk);
         udelay(2);
@@ -372,7 +372,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
         if (tegra_i2c_flush_fifos(i2c_dev))
                 err = -ETIMEDOUT;
 
-        clk_disable(i2c_dev->clk);
+        clk_disable_unprepare(i2c_dev->clk);
 
         if (i2c_dev->irq_disabled) {
                 i2c_dev->irq_disabled = 0;
@@ -546,14 +546,14 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
         if (i2c_dev->is_suspended)
                 return -EBUSY;
 
-        clk_enable(i2c_dev->clk);
+        clk_prepare_enable(i2c_dev->clk);
         for (i = 0; i < num; i++) {
                 int stop = (i == (num - 1)) ? 1  : 0;
                 ret = tegra_i2c_xfer_msg(i2c_dev, &msgs[i], stop);
                 if (ret)
                         break;
         }
-        clk_disable(i2c_dev->clk);
+        clk_disable_unprepare(i2c_dev->clk);
         return ret ?: i;
 }
 
@@ -666,7 +666,7 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
                 goto err_free;
         }
 
-        clk_enable(i2c_dev->i2c_clk);
+        clk_prepare_enable(i2c_dev->i2c_clk);
 
         i2c_set_adapdata(&i2c_dev->adapter, i2c_dev);
         i2c_dev->adapter.owner = THIS_MODULE;
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 4ffe64d5310..2c1c9ed1bd9 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -492,7 +492,7 @@ static int tegra_kbc_start(struct tegra_kbc *kbc)
         unsigned int debounce_cnt;
         u32 val = 0;
 
-        clk_enable(kbc->clk);
+        clk_prepare_enable(kbc->clk);
 
         /* Reset the KBC controller to clear all previous status.*/
         tegra_periph_reset_assert(kbc->clk);
@@ -556,7 +556,7 @@ static void tegra_kbc_stop(struct tegra_kbc *kbc)
         disable_irq(kbc->irq);
         del_timer_sync(&kbc->timer);
 
-        clk_disable(kbc->clk);
+        clk_disable_unprepare(kbc->clk);
 }
 
 static int tegra_kbc_open(struct input_dev *dev)
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 6e5338a071c..0810ccc23d7 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -337,7 +337,7 @@ static int __devinit sdhci_tegra_probe(struct platform_device *pdev)
                 rc = PTR_ERR(clk);
                 goto err_clk_get;
         }
-        clk_enable(clk);
+        clk_prepare_enable(clk);
         pltfm_host->clk = clk;
 
         host->mmc->pm_caps = plat->pm_flags;
@@ -352,7 +352,7 @@ static int __devinit sdhci_tegra_probe(struct platform_device *pdev)
         return 0;
 
 err_add_host:
-        clk_disable(pltfm_host->clk);
+        clk_disable_unprepare(pltfm_host->clk);
         clk_put(pltfm_host->clk);
 err_clk_get:
         if (gpio_is_valid(plat->wp_gpio))
@@ -393,7 +393,7 @@ static int __devexit sdhci_tegra_remove(struct platform_device *pdev)
         if (gpio_is_valid(plat->power_gpio))
                 gpio_free(plat->power_gpio);
 
-        clk_disable(pltfm_host->clk);
+        clk_disable_unprepare(pltfm_host->clk);
         clk_put(pltfm_host->clk);
 
         sdhci_pltfm_free(pdev);
diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c
index ae6d78a3e91..7f99ff3553a 100644
--- a/drivers/spi/spi-tegra.c
+++ b/drivers/spi/spi-tegra.c
@@ -261,7 +261,7 @@ static void spi_tegra_start_transfer(struct spi_device *spi,
                 clk_set_rate(tspi->clk, speed);
 
         if (tspi->cur_speed == 0)
-                clk_enable(tspi->clk);
+                clk_prepare_enable(tspi->clk);
 
         tspi->cur_speed = speed;
 
@@ -373,7 +373,7 @@ static void tegra_spi_rx_dma_complete(struct tegra_dma_req *req)
                         spi = m->state;
                         spi_tegra_start_message(spi, m);
                 } else {
-                        clk_disable(tspi->clk);
+                        clk_disable_unprepare(tspi->clk);
                         tspi->cur_speed = 0;
                 }
         }
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 3c60088871e..9356886f489 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -675,7 +675,7 @@ static void tegra_init_i2c_slave(struct nvec_chip *nvec)
 {
         u32 val;
 
-        clk_enable(nvec->i2c_clk);
+        clk_prepare_enable(nvec->i2c_clk);
 
         tegra_periph_reset_assert(nvec->i2c_clk);
         udelay(2);
@@ -695,14 +695,14 @@ static void tegra_init_i2c_slave(struct nvec_chip *nvec)
 
         enable_irq(nvec->irq);
 
-        clk_disable(nvec->i2c_clk);
+        clk_disable_unprepare(nvec->i2c_clk);
 }
 
 static void nvec_disable_i2c_slave(struct nvec_chip *nvec)
 {
         disable_irq(nvec->irq);
         writel(I2C_SL_NEWSL | I2C_SL_NACK, nvec->base + I2C_SL_CNFG);
-        clk_disable(nvec->i2c_clk);
+        clk_disable_unprepare(nvec->i2c_clk);
 }
 
 static void nvec_power_off(void)
@@ -812,7 +812,7 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 
         tegra_init_i2c_slave(nvec);
 
-        clk_enable(i2c_clk);
+        clk_prepare_enable(i2c_clk);
 
 
         /* enable event reporting */
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 68548236ec4..ab8a3bf628e 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -46,8 +46,8 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd)
 {
         struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);
 
-        clk_enable(tegra->emc_clk);
-        clk_enable(tegra->clk);
+        clk_prepare_enable(tegra->emc_clk);
+        clk_prepare_enable(tegra->clk);
         tegra_usb_phy_power_on(tegra->phy);
         tegra->host_resumed = 1;
 }
@@ -58,8 +58,8 @@ static void tegra_ehci_power_down(struct usb_hcd *hcd)
 
         tegra->host_resumed = 0;
         tegra_usb_phy_power_off(tegra->phy);
-        clk_disable(tegra->clk);
-        clk_disable(tegra->emc_clk);
+        clk_disable_unprepare(tegra->clk);
+        clk_disable_unprepare(tegra->emc_clk);
 }
 
 static int tegra_ehci_internal_port_reset(
@@ -671,7 +671,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
                 goto fail_clk;
         }
 
-        err = clk_enable(tegra->clk);
+        err = clk_prepare_enable(tegra->clk);
         if (err)
                 goto fail_clken;
 
@@ -682,7 +682,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
                 goto fail_emc_clk;
         }
 
-        clk_enable(tegra->emc_clk);
+        clk_prepare_enable(tegra->emc_clk);
         clk_set_rate(tegra->emc_clk, 400000000);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -782,10 +782,10 @@ fail:
 fail_phy:
         iounmap(hcd->regs);
 fail_io:
-        clk_disable(tegra->emc_clk);
+        clk_disable_unprepare(tegra->emc_clk);
         clk_put(tegra->emc_clk);
 fail_emc_clk:
-        clk_disable(tegra->clk);
+        clk_disable_unprepare(tegra->clk);
 fail_clken:
         clk_put(tegra->clk);
 fail_clk:
@@ -820,10 +820,10 @@ static int tegra_ehci_remove(struct platform_device *pdev)
         tegra_usb_phy_close(tegra->phy);
         iounmap(hcd->regs);
 
-        clk_disable(tegra->clk);
+        clk_disable_unprepare(tegra->clk);
         clk_put(tegra->clk);
 
-        clk_disable(tegra->emc_clk);
+        clk_disable_unprepare(tegra->emc_clk);
         clk_put(tegra->emc_clk);
 
         kfree(tegra);
diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c
index 0c7af63d444..1647dbfe74b 100644
--- a/sound/soc/tegra/tegra20_i2s.c
+++ b/sound/soc/tegra/tegra20_i2s.c
@@ -62,7 +62,7 @@ static int tegra20_i2s_runtime_suspend(struct device *dev)
 {
         struct tegra20_i2s *i2s = dev_get_drvdata(dev);
 
-        clk_disable(i2s->clk_i2s);
+        clk_disable_unprepare(i2s->clk_i2s);
 
         return 0;
 }
@@ -72,7 +72,7 @@ static int tegra20_i2s_runtime_resume(struct device *dev)
         struct tegra20_i2s *i2s = dev_get_drvdata(dev);
         int ret;
 
-        ret = clk_enable(i2s->clk_i2s);
+        ret = clk_prepare_enable(i2s->clk_i2s);
         if (ret) {
                 dev_err(dev, "clk_enable failed: %d\n", ret);
                 return ret;
diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index f9b57418bd0..2262e4fdec2 100644
--- a/sound/soc/tegra/tegra20_spdif.c
+++ b/sound/soc/tegra/tegra20_spdif.c
@@ -54,7 +54,7 @@ static int tegra20_spdif_runtime_suspend(struct device *dev)
 {
         struct tegra20_spdif *spdif = dev_get_drvdata(dev);
 
-        clk_disable(spdif->clk_spdif_out);
+        clk_disable_unprepare(spdif->clk_spdif_out);
 
         return 0;
 }
@@ -64,7 +64,7 @@ static int tegra20_spdif_runtime_resume(struct device *dev)
         struct tegra20_spdif *spdif = dev_get_drvdata(dev);
         int ret;
 
-        ret = clk_enable(spdif->clk_spdif_out);
+        ret = clk_prepare_enable(spdif->clk_spdif_out);
         if (ret) {
                 dev_err(dev, "clk_enable failed: %d\n", ret);
                 return ret;
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index f43edb364a1..bf5610122c7 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -56,8 +56,8 @@ static int tegra30_ahub_runtime_suspend(struct device *dev)
         regcache_cache_only(ahub->regmap_apbif, true);
         regcache_cache_only(ahub->regmap_ahub, true);
 
-        clk_disable(ahub->clk_apbif);
-        clk_disable(ahub->clk_d_audio);
+        clk_disable_unprepare(ahub->clk_apbif);
+        clk_disable_unprepare(ahub->clk_d_audio);
 
         return 0;
 }
@@ -77,12 +77,12 @@ static int tegra30_ahub_runtime_resume(struct device *dev)
 {
         int ret;
 
-        ret = clk_enable(ahub->clk_d_audio);
+        ret = clk_prepare_enable(ahub->clk_d_audio);
         if (ret) {
                 dev_err(dev, "clk_enable d_audio failed: %d\n", ret);
                 return ret;
         }
-        ret = clk_enable(ahub->clk_apbif);
+        ret = clk_prepare_enable(ahub->clk_apbif);
         if (ret) {
                 dev_err(dev, "clk_enable apbif failed: %d\n", ret);
                 clk_disable(ahub->clk_d_audio);
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 8596032985d..d308faaae14 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -62,7 +62,7 @@ static int tegra30_i2s_runtime_suspend(struct device *dev)
 
         regcache_cache_only(i2s->regmap, true);
 
-        clk_disable(i2s->clk_i2s);
+        clk_disable_unprepare(i2s->clk_i2s);
 
         return 0;
 }
@@ -72,7 +72,7 @@ static int tegra30_i2s_runtime_resume(struct device *dev)
         struct tegra30_i2s *i2s = dev_get_drvdata(dev);
         int ret;
 
-        ret = clk_enable(i2s->clk_i2s);
+        ret = clk_prepare_enable(i2s->clk_i2s);
         if (ret) {
                 dev_err(dev, "clk_enable failed: %d\n", ret);
                 return ret;
diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c
index 9515ce58ea0..6872c77a119 100644
--- a/sound/soc/tegra/tegra_asoc_utils.c
+++ b/sound/soc/tegra/tegra_asoc_utils.c
@@ -69,9 +69,9 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
         data->set_baseclock = 0;
         data->set_mclk = 0;
 
-        clk_disable(data->clk_cdev1);
-        clk_disable(data->clk_pll_a_out0);
-        clk_disable(data->clk_pll_a);
+        clk_disable_unprepare(data->clk_cdev1);
+        clk_disable_unprepare(data->clk_pll_a_out0);
+        clk_disable_unprepare(data->clk_pll_a);
 
         err = clk_set_rate(data->clk_pll_a, new_baseclock);
         if (err) {
@@ -87,19 +87,19 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
 
         /* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
 
-        err = clk_enable(data->clk_pll_a);
+        err = clk_prepare_enable(data->clk_pll_a);
         if (err) {
                 dev_err(data->dev, "Can't enable pll_a: %d\n", err);
                 return err;
         }
 
-        err = clk_enable(data->clk_pll_a_out0);
+        err = clk_prepare_enable(data->clk_pll_a_out0);
         if (err) {
                 dev_err(data->dev, "Can't enable pll_a_out0: %d\n", err);
                 return err;
         }
 
-        err = clk_enable(data->clk_cdev1);
+        err = clk_prepare_enable(data->clk_cdev1);
         if (err) {
                 dev_err(data->dev, "Can't enable cdev1: %d\n", err);
                 return err;