diff mbox

[1/2,v2] ARM: shmobile: lager: add gpio/fixed regulator for SDHI

Message ID 878uwqo2df.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Superseded
Headers show

Commit Message

Kuninori Morimoto Nov. 15, 2013, 1:55 a.m. UTC
Fixed regulator is used for SDHI0/2 Vcc.
We should use da9063 driver for Vccq,
but, it doesn't have regulator support at this point.
This patch uses gpio-regulator for it as quick-hack.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
v1 -> v2

 - 2/2 become 1/2
 - FIXME comment was added

 arch/arm/mach-shmobile/board-lager.c |   83 +++++++++++++++++++++++++++++++++-
 1 file changed, 82 insertions(+), 1 deletion(-)

Comments

Laurent Pinchart Nov. 18, 2013, 11:35 a.m. UTC | #1
Hi Morimoto-san,

Thank you for the patch.

On Thursday 14 November 2013 17:55:12 Kuninori Morimoto wrote:
> Fixed regulator is used for SDHI0/2 Vcc.
> We should use da9063 driver for Vccq,
> but, it doesn't have regulator support at this point.
> This patch uses gpio-regulator for it as quick-hack.
> 
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> ---
> v1 -> v2
> 
>  - 2/2 become 1/2
>  - FIXME comment was added
> 
>  arch/arm/mach-shmobile/board-lager.c |   83 ++++++++++++++++++++++++++++++-
>  1 file changed, 82 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-shmobile/board-lager.c
> b/arch/arm/mach-shmobile/board-lager.c index fcf06fd..3d1640f 100644
> --- a/arch/arm/mach-shmobile/board-lager.c
> +++ b/arch/arm/mach-shmobile/board-lager.c
> @@ -31,7 +31,9 @@
>  #include <linux/platform_data/rcar-du.h>
>  #include <linux/platform_device.h>
>  #include <linux/phy.h>
> +#include <linux/regulator/driver.h>

I might be mistaken, but is this header really needed ?

>  #include <linux/regulator/fixed.h>
> +#include <linux/regulator/gpio-regulator.h>
>  #include <linux/regulator/machine.h>
>  #include <linux/sh_eth.h>
>  #include <mach/common.h>
> @@ -141,6 +143,71 @@ static struct regulator_consumer_supply
> fixed3v3_power_consumers[] = REGULATOR_SUPPLY("vmmc", "sh_mmcif.1"),
>  };
> 
> +/*
> + * SDHI regulator macro
> + *
> + ** FIXME**
> + * Lager board vqmmc is provided via DA9063 PMIC chip,
> + * and we should use ${LINK}/drivers/mfd/da9063-* driver for it.
> + * but, it doesn't have regulator support at this point.
> + * It uses gpio-regulator for vqmmc as quick-hack.
> + */
> +#define SDHI_REGULATOR(idx, vdd_pin, vccq_pin)				\
> +static struct regulator_consumer_supply vcc_sdhi##idx##_consumer =	\
> +	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi." #idx);		\
> +									\
> +static struct regulator_init_data vcc_sdhi##idx##_init_data = {		\
> +	.constraints = {						\
> +		.valid_ops_mask = REGULATOR_CHANGE_STATUS,		\
> +	},								\
> +	.consumer_supplies	= &vcc_sdhi##idx##_consumer,		\
> +	.num_consumer_supplies	= 1,					\
> +};									\
> +									\
> +static struct fixed_voltage_config vcc_sdhi##idx##_info = {		\

You can make this structure const.

> +	.supply_name	= "SDHI" #idx "Vcc",				\
> +	.microvolts	= 3300000,					\
> +	.gpio		= vdd_pin,					\
> +	.enable_high	= 1,						\
> +	.init_data	= &vcc_sdhi##idx##_init_data,			\
> +};									\
> +									\
> +static struct regulator_consumer_supply vccq_sdhi##idx##_consumer=	\
> +	REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi." #idx);		\
> +									\
> +static struct regulator_init_data vccq_sdhi##idx##_init_data = {	\
> +	.constraints = {						\
> +		.input_uV	= 3300000,				\
> +		.min_uV		= 1800000,				\
> +		.max_uV		= 3300000,				\
> +		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |		\
> +				  REGULATOR_CHANGE_STATUS,		\
> +	},								\
> +	.consumer_supplies	= &vccq_sdhi##idx##_consumer,		\
> +	.num_consumer_supplies	= 1,					\
> +};									\
> +									\
> +static struct gpio vccq_sdhi##idx##_gpio =				\
> +	{ vccq_pin, GPIOF_OUT_INIT_HIGH, "vccq-sdhi" #idx };		\
> +									\
> +static struct gpio_regulator_state vccq_sdhi##idx##_states[] = {	\
> +	{ .value = 1800000, .gpios = 0 },				\
> +	{ .value = 3300000, .gpios = 1 },				\
> +};									\
> +									\
> +static struct gpio_regulator_config vccq_sdhi##idx##_info = {		\

You can make this structure const.

> +	.supply_name	= "vqmmc",					\
> +	.gpios		= &vccq_sdhi##idx##_gpio,			\
> +	.nr_gpios	= 1,						\
> +	.states		= vccq_sdhi##idx##_states,			\
> +	.nr_states	= ARRAY_SIZE(vccq_sdhi##idx##_states),		\
> +	.type		= REGULATOR_VOLTAGE,				\
> +	.init_data	= &vccq_sdhi##idx##_init_data,			\
> +};
> +
> +SDHI_REGULATOR(0, RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 29));
> +SDHI_REGULATOR(2, RCAR_GP_PIN(5, 25), RCAR_GP_PIN(5, 30));
> +
>  /* MMCIF */
>  static const struct sh_mmcif_plat_data mmcif1_pdata __initconst = {
>  	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
> @@ -198,6 +265,9 @@ static const struct pinctrl_map lager_pinctrl_map[] = {
> 
>  static void __init lager_add_standard_devices(void)
>  {
> +	int fixed_regulator_idx = 0;
> +	int gpio_regulator_idx = 0;
> +
>  	r8a7790_clock_init();
> 
>  	pinctrl_register_mappings(lager_pinctrl_map,
> @@ -211,7 +281,8 @@ static void __init lager_add_standard_devices(void)
>  	platform_device_register_data(&platform_bus, "gpio-keys", -1,
>  				      &lager_keys_pdata,
>  				      sizeof(lager_keys_pdata));
> -	regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
> +	regulator_register_always_on(fixed_regulator_idx++,
> +				     "fixed-3.3V", fixed3v3_power_consumers,
>  				     ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
>  	platform_device_register_resndata(&platform_bus, "sh_mmcif", 1,
>  					  mmcif1_resources, ARRAY_SIZE(mmcif1_resources),
> @@ -223,6 +294,16 @@ static void __init lager_add_standard_devices(void)
>  					  &ether_pdata, sizeof(ether_pdata));
> 
>  	lager_add_du_device();
> +
> +	platform_device_register_data(&platform_bus, "reg-fixed-voltage",
> fixed_regulator_idx++,
> +				      &vcc_sdhi0_info, sizeof(struct fixed_voltage_config));
> +	platform_device_register_data(&platform_bus, "reg-fixed-voltage",
> fixed_regulator_idx++,
> +				      &vcc_sdhi2_info, sizeof(struct fixed_voltage_config));
> +
> +	platform_device_register_data(&platform_bus, "gpio-regulator",
> gpio_regulator_idx++,
> +				      &vccq_sdhi0_info, sizeof(struct
> gpio_regulator_config));
> +	platform_device_register_data(&platform_bus, "gpio-regulator",
> gpio_regulator_idx++,
> +				      &vccq_sdhi2_info, sizeof(struct
> gpio_regulator_config)); }
> 
>  /*
Kuninori Morimoto Nov. 19, 2013, 5:14 a.m. UTC | #2
Hi Laurent

> >  #include <linux/platform_data/rcar-du.h>
> >  #include <linux/platform_device.h>
> >  #include <linux/phy.h>
> > +#include <linux/regulator/driver.h>
> 
> I might be mistaken, but is this header really needed ?

Unfortunately, the compile will error without it.
regulator_xxx / REGULATOR_XXX need it

> > +static struct fixed_voltage_config vcc_sdhi##idx##_info = {		\
> 
> You can make this structure const.
(snip)
> > +static struct gpio_regulator_config vccq_sdhi##idx##_info = {		\
> 
> You can make this structure const.

I see.
Thank you

Best regards
---
Kuninori Morimoto
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Laurent Pinchart Nov. 19, 2013, 12:45 p.m. UTC | #3
Hi Morimoto-san,

On Monday 18 November 2013 21:14:15 Kuninori Morimoto wrote:
> Hi Laurent
> 
> > >  #include <linux/platform_data/rcar-du.h>
> > >  #include <linux/platform_device.h>
> > >  #include <linux/phy.h>
> > > 
> > > +#include <linux/regulator/driver.h>
> > 
> > I might be mistaken, but is this header really needed ?
> 
> Unfortunately, the compile will error without it.
> regulator_xxx / REGULATOR_XXX need it

I believe you should include regulator/machine.h instead of 
regulator/driver.h.

> > > +static struct fixed_voltage_config vcc_sdhi##idx##_info = {		\
> > 
> > You can make this structure const.
> 
> (snip)
> 
> > > +static struct gpio_regulator_config vccq_sdhi##idx##_info = {		\
> > 
> > You can make this structure const.
> 
> I see.
> Thank you
Kuninori Morimoto Nov. 20, 2013, 7:37 a.m. UTC | #4
Hi Laurent

> > > >  #include <linux/platform_data/rcar-du.h>
> > > >  #include <linux/platform_device.h>
> > > >  #include <linux/phy.h>
> > > > 
> > > > +#include <linux/regulator/driver.h>
> > > 
> > > I might be mistaken, but is this header really needed ?
> > 
> > Unfortunately, the compile will error without it.
> > regulator_xxx / REGULATOR_XXX need it
> 
> I believe you should include regulator/machine.h instead of 
> regulator/driver.h.

This is the result.
What is your opinion ?

--- with regulator/machine.h --------
  CC      arch/arm/mach-shmobile/board-lager.o
In file included from /opt/usr/src/WORK/morimoto/gitlinux/linux/arch/arm/mach-shmobile/board-lager.c:36:0:
/opt/usr/src/WORK/morimoto/gitlinux/linux/include/linux/regulator/gpio-regulator.h:83:22: error: field 'type' has incomplete type
/opt/usr/src/WORK/morimoto/gitlinux/linux/arch/arm/mach-shmobile/board-lager.c:208:1: error: 'REGULATOR_VOLTAGE' undeclared here (not in a function)

--- with regulator/driver.h ------
  CC      arch/arm/mach-shmobile/board-lager.o
(no error)
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Laurent Pinchart Nov. 20, 2013, 10:57 a.m. UTC | #5
Hi Morimoto-san,

On Tuesday 19 November 2013 23:37:32 Kuninori Morimoto wrote:
> Hi Laurent
> 
> > > > >  #include <linux/platform_data/rcar-du.h>
> > > > >  #include <linux/platform_device.h>
> > > > >  #include <linux/phy.h>
> > > > > 
> > > > > +#include <linux/regulator/driver.h>
> > > > 
> > > > I might be mistaken, but is this header really needed ?
> > > 
> > > Unfortunately, the compile will error without it.
> > > regulator_xxx / REGULATOR_XXX need it
> > 
> > I believe you should include regulator/machine.h instead of
> > regulator/driver.h.
> 
> This is the result.
> What is your opinion ?
> 
> --- with regulator/machine.h --------
>   CC      arch/arm/mach-shmobile/board-lager.o
> In file included from
> /opt/usr/src/WORK/morimoto/gitlinux/linux/arch/arm/mach-shmobile/board-lage
> r.c:36:0:
> /opt/usr/src/WORK/morimoto/gitlinux/linux/include/linux/regulator/gpio-regu
> lator.h:83:22: error: field 'type' has incomplete type
> /opt/usr/src/WORK/morimoto/gitlinux/linux/arch/arm/mach-shmobile/board-lage
> r.c:208:1: error: 'REGULATOR_VOLTAGE' undeclared here (not in a function)
> 
> --- with regulator/driver.h ------
>   CC      arch/arm/mach-shmobile/board-lager.o
> (no error)

I believe the enum regulator_type definition should be moved out of 
regulator/driver.h, but that's out of scope of this patch set, so I'm fine 
with including regulator/driver.h for now.
Kuninori Morimoto Nov. 21, 2013, 1:53 a.m. UTC | #6
Hi Laurent

> > --- with regulator/machine.h --------
> >   CC      arch/arm/mach-shmobile/board-lager.o
> > In file included from
> > /opt/usr/src/WORK/morimoto/gitlinux/linux/arch/arm/mach-shmobile/board-lage
> > r.c:36:0:
> > /opt/usr/src/WORK/morimoto/gitlinux/linux/include/linux/regulator/gpio-regu
> > lator.h:83:22: error: field 'type' has incomplete type
> > /opt/usr/src/WORK/morimoto/gitlinux/linux/arch/arm/mach-shmobile/board-lage
> > r.c:208:1: error: 'REGULATOR_VOLTAGE' undeclared here (not in a function)
> > 
> > --- with regulator/driver.h ------
> >   CC      arch/arm/mach-shmobile/board-lager.o
> > (no error)
> 
> I believe the enum regulator_type definition should be moved out of 
> regulator/driver.h, but that's out of scope of this patch set, so I'm fine 
> with including regulator/driver.h for now.

Thank you

Best regards
---
Kuninori Morimoto
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diff mbox

Patch

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index fcf06fd..3d1640f 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -31,7 +31,9 @@ 
 #include <linux/platform_data/rcar-du.h>
 #include <linux/platform_device.h>
 #include <linux/phy.h>
+#include <linux/regulator/driver.h>
 #include <linux/regulator/fixed.h>
+#include <linux/regulator/gpio-regulator.h>
 #include <linux/regulator/machine.h>
 #include <linux/sh_eth.h>
 #include <mach/common.h>
@@ -141,6 +143,71 @@  static struct regulator_consumer_supply fixed3v3_power_consumers[] =
 	REGULATOR_SUPPLY("vmmc", "sh_mmcif.1"),
 };
 
+/*
+ * SDHI regulator macro
+ *
+ ** FIXME**
+ * Lager board vqmmc is provided via DA9063 PMIC chip,
+ * and we should use ${LINK}/drivers/mfd/da9063-* driver for it.
+ * but, it doesn't have regulator support at this point.
+ * It uses gpio-regulator for vqmmc as quick-hack.
+ */
+#define SDHI_REGULATOR(idx, vdd_pin, vccq_pin)				\
+static struct regulator_consumer_supply vcc_sdhi##idx##_consumer =	\
+	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi." #idx);		\
+									\
+static struct regulator_init_data vcc_sdhi##idx##_init_data = {		\
+	.constraints = {						\
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,		\
+	},								\
+	.consumer_supplies	= &vcc_sdhi##idx##_consumer,		\
+	.num_consumer_supplies	= 1,					\
+};									\
+									\
+static struct fixed_voltage_config vcc_sdhi##idx##_info = {		\
+	.supply_name	= "SDHI" #idx "Vcc",				\
+	.microvolts	= 3300000,					\
+	.gpio		= vdd_pin,					\
+	.enable_high	= 1,						\
+	.init_data	= &vcc_sdhi##idx##_init_data,			\
+};									\
+									\
+static struct regulator_consumer_supply vccq_sdhi##idx##_consumer=	\
+	REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi." #idx);		\
+									\
+static struct regulator_init_data vccq_sdhi##idx##_init_data = {	\
+	.constraints = {						\
+		.input_uV	= 3300000,				\
+		.min_uV		= 1800000,				\
+		.max_uV		= 3300000,				\
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |		\
+				  REGULATOR_CHANGE_STATUS,		\
+	},								\
+	.consumer_supplies	= &vccq_sdhi##idx##_consumer,		\
+	.num_consumer_supplies	= 1,					\
+};									\
+									\
+static struct gpio vccq_sdhi##idx##_gpio =				\
+	{ vccq_pin, GPIOF_OUT_INIT_HIGH, "vccq-sdhi" #idx };		\
+									\
+static struct gpio_regulator_state vccq_sdhi##idx##_states[] = {	\
+	{ .value = 1800000, .gpios = 0 },				\
+	{ .value = 3300000, .gpios = 1 },				\
+};									\
+									\
+static struct gpio_regulator_config vccq_sdhi##idx##_info = {		\
+	.supply_name	= "vqmmc",					\
+	.gpios		= &vccq_sdhi##idx##_gpio,			\
+	.nr_gpios	= 1,						\
+	.states		= vccq_sdhi##idx##_states,			\
+	.nr_states	= ARRAY_SIZE(vccq_sdhi##idx##_states),		\
+	.type		= REGULATOR_VOLTAGE,				\
+	.init_data	= &vccq_sdhi##idx##_init_data,			\
+};
+
+SDHI_REGULATOR(0, RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 29));
+SDHI_REGULATOR(2, RCAR_GP_PIN(5, 25), RCAR_GP_PIN(5, 30));
+
 /* MMCIF */
 static const struct sh_mmcif_plat_data mmcif1_pdata __initconst = {
 	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
@@ -198,6 +265,9 @@  static const struct pinctrl_map lager_pinctrl_map[] = {
 
 static void __init lager_add_standard_devices(void)
 {
+	int fixed_regulator_idx = 0;
+	int gpio_regulator_idx = 0;
+
 	r8a7790_clock_init();
 
 	pinctrl_register_mappings(lager_pinctrl_map,
@@ -211,7 +281,8 @@  static void __init lager_add_standard_devices(void)
 	platform_device_register_data(&platform_bus, "gpio-keys", -1,
 				      &lager_keys_pdata,
 				      sizeof(lager_keys_pdata));
-	regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
+	regulator_register_always_on(fixed_regulator_idx++,
+				     "fixed-3.3V", fixed3v3_power_consumers,
 				     ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
 	platform_device_register_resndata(&platform_bus, "sh_mmcif", 1,
 					  mmcif1_resources, ARRAY_SIZE(mmcif1_resources),
@@ -223,6 +294,16 @@  static void __init lager_add_standard_devices(void)
 					  &ether_pdata, sizeof(ether_pdata));
 
 	lager_add_du_device();
+
+	platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
+				      &vcc_sdhi0_info, sizeof(struct fixed_voltage_config));
+	platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
+				      &vcc_sdhi2_info, sizeof(struct fixed_voltage_config));
+
+	platform_device_register_data(&platform_bus, "gpio-regulator", gpio_regulator_idx++,
+				      &vccq_sdhi0_info, sizeof(struct gpio_regulator_config));
+	platform_device_register_data(&platform_bus, "gpio-regulator", gpio_regulator_idx++,
+				      &vccq_sdhi2_info, sizeof(struct gpio_regulator_config));
 }
 
 /*