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Message-Id: <1521168778-27236-27-git-send-email-david@lechnology.com>
Date: Thu, 15 Mar 2018 21:52:42 -0500
From: David Lechner <david@...hnology.com>
To: linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Sekhar Nori <nsekhar@...com>,
Kevin Hilman <khilman@...nel.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Adam Ford <aford173@...il.com>, linux-kernel@...r.kernel.org,
David Lechner <david@...hnology.com>
Subject: [PATCH v8 26/42] ARM: davinci: dm646x: add new clock init using common clock framework
This adds the new board-specific clock init in mach-davinci/dm646x.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@...hnology.com>
---
v8 changes:
- register clkdev lookup for ref_clk and aux_clkin
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-dm646x-evm.c | 2 +
arch/arm/mach-davinci/davinci.h | 1 +
arch/arm/mach-davinci/dm646x.c | 85 +++++++++++++++++++++++++++++---
3 files changed, 80 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 2d37f5b..d672804 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -772,6 +772,8 @@ static __init void evm_init(void)
int ret;
struct davinci_soc_info *soc_info = &davinci_soc_info;
+ dm646x_register_clocks();
+
ret = dm646x_gpio_register();
if (ret)
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index 2861a6f..a200977 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -115,6 +115,7 @@ int dm644x_gpio_register(void);
/* DM646x function declarations */
void dm646x_init(void);
void dm646x_init_time(unsigned long ref_clk_rate, unsigned long aux_clkin_rate);
+void dm646x_register_clocks(void);
void dm646x_init_mcasp0(struct snd_platform_data *pdata);
void dm646x_init_mcasp1(struct snd_platform_data *pdata);
int dm646x_init_edma(struct edma_rsv_info *rsv);
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index e1d6e92..553782f 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -8,29 +8,33 @@
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/serial_8250.h>
-#include <linux/platform_device.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
#define DAVINCI_VPIF_BASE (0x01C12000)
@@ -46,6 +50,7 @@
#define DM646X_EMAC_CNTRL_RAM_OFFSET 0x2000
#define DM646X_EMAC_CNTRL_RAM_SIZE 0x2000
+#ifndef CONFIG_COMMON_CLK
static struct pll_data pll1_data = {
.num = 1,
.phys_base = DAVINCI_PLL1_BASE,
@@ -356,6 +361,7 @@ static struct clk_lookup dm646x_clks[] = {
CLK(NULL, "vpif1", &vpif1_clk),
CLK(NULL, NULL, NULL),
};
+#endif
static struct emac_platform_data dm646x_emac_pdata = {
.ctrl_reg_offset = DM646X_EMAC_CNTRL_OFFSET,
@@ -953,10 +959,73 @@ void __init dm646x_init(void)
void __init dm646x_init_time(unsigned long ref_clk_rate,
unsigned long aux_clkin_rate)
{
+#ifdef CONFIG_COMMON_CLK
+ struct clk *clk;
+
+ clk = clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, ref_clk_rate);
+ clk_register_clkdev(clk, "ref_clk", "dm646x-psc");
+ davinci_timer_init(clk);
+
+ clk = clk_register_fixed_rate(NULL, "aux_clkin", NULL, 0, aux_clkin_rate);
+ clk_register_clkdev(clk, "aux_clkin", "dm646x-psc");
+#else
ref_clk.rate = ref_clk_rate;
aux_clkin.rate = aux_clkin_rate;
davinci_clk_init(dm646x_clks);
davinci_timer_init(&timer0_clk);
+#endif
+}
+
+static struct resource dm646x_pll1_resources[] = {
+ {
+ .start = DAVINCI_PLL1_BASE,
+ .end = DAVINCI_PLL1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm646x_pll1_device = {
+ .name = "dm646x-pll1",
+ .id = -1,
+ .resource = dm646x_pll1_resources,
+ .num_resources = ARRAY_SIZE(dm646x_pll1_resources),
+};
+
+static struct resource dm646x_pll2_resources[] = {
+ {
+ .start = DAVINCI_PLL2_BASE,
+ .end = DAVINCI_PLL2_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm646x_pll2_device = {
+ .name = "dm646x-pll2",
+ .id = -1,
+ .resource = dm646x_pll2_resources,
+ .num_resources = ARRAY_SIZE(dm646x_pll2_resources),
+};
+
+static struct resource dm646x_psc_resources[] = {
+ {
+ .start = DAVINCI_PWR_SLEEP_CNTRL_BASE,
+ .end = DAVINCI_PWR_SLEEP_CNTRL_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm646x_psc_device = {
+ .name = "dm646x-psc",
+ .id = -1,
+ .resource = dm646x_psc_resources,
+ .num_resources = ARRAY_SIZE(dm646x_psc_resources),
+};
+
+void __init dm646x_register_clocks(void)
+{
+ platform_device_register(&dm646x_pll1_device);
+ platform_device_register(&dm646x_pll2_device);
+ platform_device_register(&dm646x_psc_device);
}
static int __init dm646x_init_devices(void)
--
2.7.4
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