diff mbox

[v2,2/4] ARM: shmobile: r8a7779: add VIN support

Message ID 201304200232.33731.sergei.shtylyov@cogentembedded.com (mailing list archive)
State Superseded
Headers show

Commit Message

Sergei Shtylyov April 19, 2013, 10:32 p.m. UTC
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>

Add VIN clocks and platform devices for R8A7779 SoC; add function to register
the VIN platform devices.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
[Sergei: added 'id' parameter check to r8a7779_add_vin_device(), renamed some
variables.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
Changes since the original posting:
- added 'id' parameter check to r8a7779_add_vin_device().

 arch/arm/mach-shmobile/clock-r8a7779.c        |   10 ++++++
 arch/arm/mach-shmobile/include/mach/r8a7779.h |    3 ++
 arch/arm/mach-shmobile/setup-r8a7779.c        |   38 ++++++++++++++++++++++++++
 3 files changed, 51 insertions(+)

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Comments

Sergei Shtylyov April 20, 2013, 12:10 a.m. UTC | #1
Hello.

On 04/20/2013 02:32 AM, Sergei Shtylyov wrote:

> From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
>
> Add VIN clocks and platform devices for R8A7779 SoC; add function to register
> the VIN platform devices.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> [Sergei: added 'id' parameter check to r8a7779_add_vin_device(), renamed some
> variables.]
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[...]

> Index: renesas/arch/arm/mach-shmobile/setup-r8a7779.c
> ===================================================================
> --- renesas.orig/arch/arm/mach-shmobile/setup-r8a7779.c
> +++ renesas/arch/arm/mach-shmobile/setup-r8a7779.c
> @@ -559,6 +559,33 @@ static struct resource ether_resources[]
>   	},
>   };
>   
> +#define R8A7779_VIN(idx) \
> +static struct resource vin##idx##_resources[] = {		\
> +	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),	\
> +	DEFINE_RES_IRQ(gic_iid(0x5f + (idx))),			\
> +};								\
> +								\
> +static struct platform_device_info vin##idx##_info = {		\

    Hm, probably should have marked this as '__initdata'... maybe
the resources too.

> +	.parent		= &platform_bus,			\
> +	.name		= "rcar_vin",				\
> +	.id		= idx,					\
> +	.res		= vin##idx##_resources,			\
> +	.num_res	= ARRAY_SIZE(vin##idx##_resources),	\
> +	.dma_mask	= DMA_BIT_MASK(32),			\
> +}
>
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Simon Horman April 22, 2013, 4:57 a.m. UTC | #2
On Sat, Apr 20, 2013 at 04:10:45AM +0400, Sergei Shtylyov wrote:
> Hello.
> 
> On 04/20/2013 02:32 AM, Sergei Shtylyov wrote:
> 
> >From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> >
> >Add VIN clocks and platform devices for R8A7779 SoC; add function to register
> >the VIN platform devices.
> >
> >Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> >[Sergei: added 'id' parameter check to r8a7779_add_vin_device(), renamed some
> >variables.]
> >Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> 
> [...]
> 
> >Index: renesas/arch/arm/mach-shmobile/setup-r8a7779.c
> >===================================================================
> >--- renesas.orig/arch/arm/mach-shmobile/setup-r8a7779.c
> >+++ renesas/arch/arm/mach-shmobile/setup-r8a7779.c
> >@@ -559,6 +559,33 @@ static struct resource ether_resources[]
> >  	},
> >  };
> >+#define R8A7779_VIN(idx) \
> >+static struct resource vin##idx##_resources[] = {		\
> >+	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),	\
> >+	DEFINE_RES_IRQ(gic_iid(0x5f + (idx))),			\
> >+};								\
> >+								\
> >+static struct platform_device_info vin##idx##_info = {		\
> 
>    Hm, probably should have marked this as '__initdata'... maybe
> the resources too.

That doesn't seem to be the case for other devices in
that or other shmobile files. Am I missing something
or should numerous other devices be updated?

> 
> >+	.parent		= &platform_bus,			\
> >+	.name		= "rcar_vin",				\
> >+	.id		= idx,					\
> >+	.res		= vin##idx##_resources,			\
> >+	.num_res	= ARRAY_SIZE(vin##idx##_resources),	\
> >+	.dma_mask	= DMA_BIT_MASK(32),			\
> >+}
> >
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> 
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Sergei Shtylyov April 22, 2013, 12:37 p.m. UTC | #3
Hello.

On 22-04-2013 8:57, Simon Horman wrote:

>>> From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>

>>> Add VIN clocks and platform devices for R8A7779 SoC; add function to register
>>> the VIN platform devices.

>>> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
>>> [Sergei: added 'id' parameter check to r8a7779_add_vin_device(), renamed some
>>> variables.]
>>> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

>> [...]

>>> Index: renesas/arch/arm/mach-shmobile/setup-r8a7779.c
>>> ===================================================================
>>> --- renesas.orig/arch/arm/mach-shmobile/setup-r8a7779.c
>>> +++ renesas/arch/arm/mach-shmobile/setup-r8a7779.c
>>> @@ -559,6 +559,33 @@ static struct resource ether_resources[]
>>>   	},
>>>   };
>>> +#define R8A7779_VIN(idx) \
>>> +static struct resource vin##idx##_resources[] = {		\
>>> +	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),	\
>>> +	DEFINE_RES_IRQ(gic_iid(0x5f + (idx))),			\
>>> +};								\
>>> +								\
>>> +static struct platform_device_info vin##idx##_info = {		\

>>     Hm, probably should have marked this as '__initdata'... maybe
>> the resources too.

> That doesn't seem to be the case for other devices in
> that or other shmobile files. Am I missing something
> or should numerous other devices be updated?

    If the device is registered using platform_device_register_*(), it seems 
worth marking the resources, the platfrom data and 'struct 
platform_device_info' as '__initdata' as they're copied to the memory 
allocated from heap anyway and hence not needed past the init phase...

WBR, Sergei

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Simon Horman April 23, 2013, 1:19 a.m. UTC | #4
On Mon, Apr 22, 2013 at 04:37:33PM +0400, Sergei Shtylyov wrote:
> Hello.
> 
> On 22-04-2013 8:57, Simon Horman wrote:
> 
> >>>From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> 
> >>>Add VIN clocks and platform devices for R8A7779 SoC; add function to register
> >>>the VIN platform devices.
> 
> >>>Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> >>>[Sergei: added 'id' parameter check to r8a7779_add_vin_device(), renamed some
> >>>variables.]
> >>>Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> 
> >>[...]
> 
> >>>Index: renesas/arch/arm/mach-shmobile/setup-r8a7779.c
> >>>===================================================================
> >>>--- renesas.orig/arch/arm/mach-shmobile/setup-r8a7779.c
> >>>+++ renesas/arch/arm/mach-shmobile/setup-r8a7779.c
> >>>@@ -559,6 +559,33 @@ static struct resource ether_resources[]
> >>>  	},
> >>>  };
> >>>+#define R8A7779_VIN(idx) \
> >>>+static struct resource vin##idx##_resources[] = {		\
> >>>+	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),	\
> >>>+	DEFINE_RES_IRQ(gic_iid(0x5f + (idx))),			\
> >>>+};								\
> >>>+								\
> >>>+static struct platform_device_info vin##idx##_info = {		\
> 
> >>    Hm, probably should have marked this as '__initdata'... maybe
> >>the resources too.
> 
> >That doesn't seem to be the case for other devices in
> >that or other shmobile files. Am I missing something
> >or should numerous other devices be updated?
> 
>    If the device is registered using platform_device_register_*(),
> it seems worth marking the resources, the platfrom data and 'struct
> platform_device_info' as '__initdata' as they're copied to the
> memory allocated from heap anyway and hence not needed past the init
> phase...

Thanks for the explanation, that make sense.
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diff mbox

Patch

Index: renesas/arch/arm/mach-shmobile/clock-r8a7779.c
===================================================================
--- renesas.orig/arch/arm/mach-shmobile/clock-r8a7779.c
+++ renesas/arch/arm/mach-shmobile/clock-r8a7779.c
@@ -112,7 +112,9 @@  static struct clk *main_clks[] = {
 };
 
 enum { MSTP323, MSTP322, MSTP321, MSTP320,
+	MSTP120,
 	MSTP116, MSTP115, MSTP114,
+	MSTP110, MSTP109, MSTP108,
 	MSTP103, MSTP101, MSTP100,
 	MSTP030,
 	MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
@@ -125,9 +127,13 @@  static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP322] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 22, 0), /* SDHI1 */
 	[MSTP321] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 21, 0), /* SDHI2 */
 	[MSTP320] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 20, 0), /* SDHI3 */
+	[MSTP120] = SH_CLK_MSTP32(&clks_clk, MSTPCR1, 20, 0), /* VIN3 */
 	[MSTP116] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 16, 0), /* PCIe */
 	[MSTP115] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 15, 0), /* SATA */
 	[MSTP114] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 14, 0), /* Ether */
+	[MSTP110] = SH_CLK_MSTP32(&clks_clk, MSTPCR1, 10, 0), /* VIN0 */
+	[MSTP109] = SH_CLK_MSTP32(&clks_clk, MSTPCR1,  9, 0), /* VIN1 */
+	[MSTP108] = SH_CLK_MSTP32(&clks_clk, MSTPCR1,  8, 0), /* VIN2 */
 	[MSTP103] = SH_CLK_MSTP32(&clks_clk, MSTPCR1,  3, 0), /* DU */
 	[MSTP101] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1,  1, 0), /* USB2 */
 	[MSTP100] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1,  0, 0), /* USB0/1 */
@@ -162,10 +168,14 @@  static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("peripheral_clk",	&clkp_clk),
 
 	/* MSTP32 clocks */
+	CLKDEV_DEV_ID("rcar_vin.3", &mstp_clks[MSTP120]), /* VIN3 */
 	CLKDEV_DEV_ID("rcar-pcie", &mstp_clks[MSTP116]), /* PCIe */
 	CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */
 	CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */
 	CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */
+	CLKDEV_DEV_ID("rcar_vin.0", &mstp_clks[MSTP110]), /* VIN0 */
+	CLKDEV_DEV_ID("rcar_vin.1", &mstp_clks[MSTP109]), /* VIN1 */
+	CLKDEV_DEV_ID("rcar_vin.2", &mstp_clks[MSTP108]), /* VIN2 */
 	CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */
 	CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */
 	CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */
Index: renesas/arch/arm/mach-shmobile/include/mach/r8a7779.h
===================================================================
--- renesas.orig/arch/arm/mach-shmobile/include/mach/r8a7779.h
+++ renesas/arch/arm/mach-shmobile/include/mach/r8a7779.h
@@ -5,6 +5,7 @@ 
 #include <linux/pm_domain.h>
 #include <linux/sh_eth.h>
 #include <linux/usb/rcar-phy.h>
+#include <linux/platform_data/camera-rcar.h>
 
 struct platform_device;
 
@@ -35,6 +36,8 @@  extern void r8a7779_add_standard_devices
 extern void r8a7779_add_standard_devices_dt(void);
 extern void r8a7779_add_ether_device(struct sh_eth_plat_data *pdata);
 extern void r8a7779_add_usb_phy_device(struct rcar_phy_platform_data *pdata);
+extern void r8a7779_add_vin_device(int idx,
+				   struct rcar_vin_platform_data *pdata);
 extern void r8a7779_init_late(void);
 extern void r8a7779_clock_init(void);
 extern void r8a7779_pinmux_init(void);
Index: renesas/arch/arm/mach-shmobile/setup-r8a7779.c
===================================================================
--- renesas.orig/arch/arm/mach-shmobile/setup-r8a7779.c
+++ renesas/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -559,6 +559,33 @@  static struct resource ether_resources[]
 	},
 };
 
+#define R8A7779_VIN(idx) \
+static struct resource vin##idx##_resources[] = {		\
+	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),	\
+	DEFINE_RES_IRQ(gic_iid(0x5f + (idx))),			\
+};								\
+								\
+static struct platform_device_info vin##idx##_info = {		\
+	.parent		= &platform_bus,			\
+	.name		= "rcar_vin",				\
+	.id		= idx,					\
+	.res		= vin##idx##_resources,			\
+	.num_res	= ARRAY_SIZE(vin##idx##_resources),	\
+	.dma_mask	= DMA_BIT_MASK(32),			\
+}
+
+R8A7779_VIN(0);
+R8A7779_VIN(1);
+R8A7779_VIN(2);
+R8A7779_VIN(3);
+
+static struct platform_device_info *vin_info_table[] __initdata = {
+	&vin0_info,
+	&vin1_info,
+	&vin2_info,
+	&vin3_info,
+};
+
 static struct platform_device *r8a7779_devices_dt[] __initdata = {
 	&scif0_device,
 	&scif1_device,
@@ -610,6 +637,17 @@  void __init r8a7779_add_usb_phy_device(s
 					  pdata, sizeof(*pdata));
 }
 
+void __init r8a7779_add_vin_device(int id,
+				   struct rcar_vin_platform_data *pdata)
+{
+	BUG_ON(id < 0 || id > 3);
+
+	vin_info_table[id]->data = pdata;
+	vin_info_table[id]->size_data = sizeof(struct rcar_vin_platform_data);
+
+	platform_device_register_full(vin_info_table[id]);
+}
+
 /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
 void __init __weak r8a7779_register_twd(void) { }