ARM: davinci: convert platform code to use clk_prepare/clk_unprepare
As a first step towards migrating davinci platforms to use common clock
framework, replace all instances of clk_enable() with clk_prepare_enable()
and clk_disable() with clk_disable_unprepare(). Until the platform is
switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just
adds a might_sleep() call and would work without any issues.
This will make it easy later to switch to common clk based implementation
of clk driver from DaVinci specific driver.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 88ebea8..cdf8d07 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -324,7 +324,7 @@
if (IS_ERR(aemif))
WARN("%s: unable to get AEMIF clock\n", __func__);
else
- clk_enable(aemif);
+ clk_prepare_enable(aemif);
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index 2f88103..d419545 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -246,7 +246,7 @@
if (IS_ERR(aemif))
WARN("%s: unable to get AEMIF clock\n", __func__);
else
- clk_enable(aemif);
+ clk_prepare_enable(aemif);
platform_add_devices(davinci_leopard_devices,
ARRAY_SIZE(davinci_leopard_devices));
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 1b4a8ad..5d49c75 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -478,7 +478,7 @@
aemif_clk = clk_get(NULL, "aemif");
if (IS_ERR(aemif_clk))
return;
- clk_enable(aemif_clk);
+ clk_prepare_enable(aemif_clk);
if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
"cpld") == NULL)
@@ -489,7 +489,7 @@
SECTION_SIZE);
fail:
pr_err("ERROR: can't map CPLD\n");
- clk_disable(aemif_clk);
+ clk_disable_unprepare(aemif_clk);
return;
}
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index f22572ce..a84dfcb 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -776,7 +776,7 @@
struct davinci_soc_info *soc_info = &davinci_soc_info;
aemif_clk = clk_get(NULL, "aemif");
- clk_enable(aemif_clk);
+ clk_prepare_enable(aemif_clk);
if (HAS_ATA) {
if (HAS_NAND || HAS_NOR)
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 144bf31..3e3e3af 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -188,7 +188,7 @@
struct davinci_soc_info *soc_info = &davinci_soc_info;
aemif_clk = clk_get(NULL, "aemif");
- clk_enable(aemif_clk);
+ clk_prepare_enable(aemif_clk);
if (HAS_ATA) {
if (HAS_NAND)
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index bd2f72b..d53612f 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -900,7 +900,7 @@
if (IS_ERR(da850_sata_clk))
return PTR_ERR(da850_sata_clk);
- ret = clk_enable(da850_sata_clk);
+ ret = clk_prepare_enable(da850_sata_clk);
if (ret)
goto err0;
@@ -931,7 +931,7 @@
return 0;
err1:
- clk_disable(da850_sata_clk);
+ clk_disable_unprepare(da850_sata_clk);
err0:
clk_put(da850_sata_clk);
return ret;
@@ -939,7 +939,7 @@
static void da850_sata_exit(struct device *dev)
{
- clk_disable(da850_sata_clk);
+ clk_disable_unprepare(da850_sata_clk);
clk_put(da850_sata_clk);
}
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index 1875740..24ddb0d 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -95,7 +95,7 @@
continue;
}
- clk_enable(uart_clk);
+ clk_prepare_enable(uart_clk);
p->uartclk = clk_get_rate(uart_clk);
if (!p->membase && p->mapbase) {
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 75da315..9847938 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -379,7 +379,7 @@
timer_clk = clk_get(NULL, "timer0");
BUG_ON(IS_ERR(timer_clk));
- clk_enable(timer_clk);
+ clk_prepare_enable(timer_clk);
/* init timer hw */
timer_init();
@@ -429,7 +429,7 @@
wd_clk = clk_get(&pdev->dev, NULL);
if (WARN_ON(IS_ERR(wd_clk)))
return;
- clk_enable(wd_clk);
+ clk_prepare_enable(wd_clk);
/* disable, internal clock source */
__raw_writel(0, base + TCR);