[PATCH v8 25/42] ARM: davinci: dm644x: add new clock init using common clock framework

David Lechner
2018-03-16T02:55:52Z

This adds the new board-specific clock init in mach-davinci/dm644x.c
using the new common clock framework drivers.

The #ifdefs are needed to prevent compile errors until the entire
ARCH_DAVINCI is converted.

Also clean up the #includes since we are adding some here.

Signed-off-by: David Lechner <david@lechnology.com>
---

v8 changes:
- none

v7 changes:
- add clock platform device declarations
- register platform devices instead of registering clocks directly
- add davinci prefix to commit description

v6 changes:
- add blank lines between function calls

arch/arm/mach-davinci/board-dm644x-evm.c | 2 +
arch/arm/mach-davinci/board-neuros-osd2.c | 2 +
arch/arm/mach-davinci/board-sffsdr.c | 2 +
arch/arm/mach-davinci/davinci.h | 1 +
arch/arm/mach-davinci/dm644x.c | 83 +++++++++++++++++++++++++++----
5 files changed, 81 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 95b55aa..91c7525 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -768,6 +768,8 @@ static __init void davinci_evm_init(void)
struct clk *aemif_clk;
struct davinci_soc_info *soc_info = &davinci_soc_info;

+ dm644x_register_clocks();
+
ret = dm644x_gpio_register();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index f287577..ae17d3e 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -174,6 +174,8 @@ static __init void davinci_ntosd2_init(void)
struct clk *aemif_clk;
struct davinci_soc_info *soc_info = &davinci_soc_info;

+ dm644x_register_clocks();
+
ret = dm644x_gpio_register();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index 2922da9..933cc08 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -134,6 +134,8 @@ static __init void davinci_sffsdr_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;

+ dm644x_register_clocks();
+
platform_add_devices(davinci_sffsdr_devices,
ARRAY_SIZE(davinci_sffsdr_devices));
sffsdr_init_i2c();
diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index c865226..2861a6f 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -107,6 +107,7 @@ int dm365_gpio_register(void);
/* DM644x function declarations */
void dm644x_init(void);
void dm644x_init_time(void);
+void dm644x_register_clocks(void);
void dm644x_init_asp(void);
int dm644x_init_video(struct vpfe_config *, struct vpbe_config *);
int dm644x_gpio_register(void);
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 71a16fc..64f5193 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -8,28 +8,31 @@
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
-#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/serial_8250.h>
+#include <linux/clk-provider.h>
#include <linux/dmaengine.h>
-#include <linux/platform_device.h>
+#include <linux/init.h>
#include <linux/platform_data/edma.h>
#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>

#include <asm/mach/map.h>

+#include <mach/common.h>
#include <mach/cputype.h>
#include <mach/irqs.h>
-#include "psc.h"
#include <mach/mux.h>
-#include <mach/time.h>
#include <mach/serial.h>
-#include <mach/common.h>
+#include <mach/time.h>

+#include "asp.h"
#include "davinci.h"
-#include "clock.h"
#include "mux.h"
-#include "asp.h"
+
+#ifndef CONFIG_COMMON_CLK
+#include "clock.h"
+#include "psc.h"
+#endif

/*
* Device specific clocks
@@ -43,6 +46,7 @@
#define DM644X_EMAC_CNTRL_RAM_OFFSET 0x2000
#define DM644X_EMAC_CNTRL_RAM_SIZE 0x2000

+#ifndef CONFIG_COMMON_CLK
static struct pll_data pll1_data = {
.num = 1,
.phys_base = DAVINCI_PLL1_BASE,
@@ -326,6 +330,7 @@ static struct clk_lookup dm644x_clks[] = {
CLK("davinci-wdt", NULL, &timer2_clk),
CLK(NULL, NULL, NULL),
};
+#endif

static struct emac_platform_data dm644x_emac_pdata = {
.ctrl_reg_offset = DM644X_EMAC_CNTRL_OFFSET,
@@ -934,8 +939,68 @@ void __init dm644x_init(void)

void __init dm644x_init_time(void)
{
+#ifdef CONFIG_COMMON_CLK
+ struct clk *clk;
+
+ clk = clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DM644X_REF_FREQ);
+
+ davinci_timer_init(clk);
+#else
davinci_clk_init(dm644x_clks);
davinci_timer_init(&timer0_clk);
+#endif
+}
+
+static struct resource dm644x_pll1_resources[] = {
+ {
+ .start = DAVINCI_PLL1_BASE,
+ .end = DAVINCI_PLL1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm644x_pll1_device = {
+ .name = "dm644x-pll1",
+ .id = -1,
+ .resource = dm644x_pll1_resources,
+ .num_resources = ARRAY_SIZE(dm644x_pll1_resources),
+};
+
+static struct resource dm644x_pll2_resources[] = {
+ {
+ .start = DAVINCI_PLL2_BASE,
+ .end = DAVINCI_PLL2_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm644x_pll2_device = {
+ .name = "dm644x-pll2",
+ .id = -1,
+ .resource = dm644x_pll2_resources,
+ .num_resources = ARRAY_SIZE(dm644x_pll2_resources),
+};
+
+static struct resource dm644x_psc_resources[] = {
+ {
+ .start = DAVINCI_PWR_SLEEP_CNTRL_BASE,
+ .end = DAVINCI_PWR_SLEEP_CNTRL_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm644x_psc_device = {
+ .name = "dm644x-psc",
+ .id = -1,
+ .resource = dm644x_psc_resources,
+ .num_resources = ARRAY_SIZE(dm644x_psc_resources),
+};
+
+void __init dm644x_register_clocks(void)
+{
+ platform_device_register(&dm644x_pll1_device);
+ platform_device_register(&dm644x_pll2_device);
+ platform_device_register(&dm644x_psc_device);
}

int __init dm644x_init_video(struct vpfe_config *vpfe_cfg,
--
2.7.4