[v2] ACPI: support for NXP i2c controller
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Message ID 20190906075319.21244-1-biwen.li@nxp.com
State Queued, archived
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  • [v2] ACPI: support for NXP i2c controller
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Commit Message

Biwen Li Sept. 6, 2019, 7:53 a.m. UTC
From: Chuanhua Han <chuanhua.han@nxp.com>

Enable NXP i2c controller to boot with ACPI

Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
Signed-off-by: Biwen Li <biwen.li@nxp.com>
---
Change in v2:
	- Simplify code
	- Adjust header file order
	- Not use ACPI_PTR()

 drivers/acpi/acpi_apd.c      |  7 +++++++
 drivers/i2c/busses/i2c-imx.c | 17 +++++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

Comments

Andy Shevchenko Sept. 6, 2019, 10:31 a.m. UTC | #1
On Fri, Sep 6, 2019 at 11:03 AM Biwen Li <biwen.li@nxp.com> wrote:
>
> From: Chuanhua Han <chuanhua.han@nxp.com>
>
> Enable NXP i2c controller to boot with ACPI
>

Thanks, the code looks good to me,
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

though...

> Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
> Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
> Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>

This SoB chain is a bit odd. Who is the author of this? The first SoB
in the chain usually points to the first (main) author. There is also
possible to change that, though in that case for the rest we now use
Co-developed-by tag rather than SoB.
In any case, if Rafael and Wolfram are okay with this, I have no objections.

> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
> Change in v2:
>         - Simplify code
>         - Adjust header file order
>         - Not use ACPI_PTR()
>
>  drivers/acpi/acpi_apd.c      |  7 +++++++
>  drivers/i2c/busses/i2c-imx.c | 17 +++++++++++++----
>  2 files changed, 20 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
> index 7cd0c9ac71ea..71511ae2dfcd 100644
> --- a/drivers/acpi/acpi_apd.c
> +++ b/drivers/acpi/acpi_apd.c
> @@ -160,11 +160,17 @@ static const struct apd_device_desc hip08_i2c_desc = {
>         .setup = acpi_apd_setup,
>         .fixed_clk_rate = 250000000,
>  };
> +
>  static const struct apd_device_desc thunderx2_i2c_desc = {
>         .setup = acpi_apd_setup,
>         .fixed_clk_rate = 125000000,
>  };
>
> +static const struct apd_device_desc nxp_i2c_desc = {
> +       .setup = acpi_apd_setup,
> +       .fixed_clk_rate = 350000000,
> +};
> +
>  static const struct apd_device_desc hip08_spi_desc = {
>         .setup = acpi_apd_setup,
>         .fixed_clk_rate = 250000000,
> @@ -238,6 +244,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
>         { "HISI02A1", APD_ADDR(hip07_i2c_desc) },
>         { "HISI02A2", APD_ADDR(hip08_i2c_desc) },
>         { "HISI0173", APD_ADDR(hip08_spi_desc) },
> +       { "NXP0001", APD_ADDR(nxp_i2c_desc) },
>  #endif
>         { }
>  };
> diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
> index 15f6cde6452f..a3b61336fe55 100644
> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -20,6 +20,7 @@
>   *
>   */
>
> +#include <linux/acpi.h>
>  #include <linux/clk.h>
>  #include <linux/completion.h>
>  #include <linux/delay.h>
> @@ -255,6 +256,12 @@ static const struct of_device_id i2c_imx_dt_ids[] = {
>  };
>  MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);
>
> +static const struct acpi_device_id i2c_imx_acpi_ids[] = {
> +       {"NXP0001", .driver_data = (kernel_ulong_t)&vf610_i2c_hwdata},
> +       { }
> +};
> +MODULE_DEVICE_TABLE(acpi, i2c_imx_acpi_ids);
> +
>  static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)
>  {
>         return i2c_imx->hwdata->devtype == IMX1_I2C;
> @@ -1048,14 +1055,13 @@ static const struct i2c_algorithm i2c_imx_algo = {
>
>  static int i2c_imx_probe(struct platform_device *pdev)
>  {
> -       const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
> -                                                          &pdev->dev);
>         struct imx_i2c_struct *i2c_imx;
>         struct resource *res;
>         struct imxi2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
>         void __iomem *base;
>         int irq, ret;
>         dma_addr_t phy_addr;
> +       const struct imx_i2c_hwdata *match;
>
>         dev_dbg(&pdev->dev, "<%s>\n", __func__);
>
> @@ -1075,8 +1081,9 @@ static int i2c_imx_probe(struct platform_device *pdev)
>         if (!i2c_imx)
>                 return -ENOMEM;
>
> -       if (of_id)
> -               i2c_imx->hwdata = of_id->data;
> +       match = device_get_match_data(&pdev->dev);
> +       if (match)
> +               i2c_imx->hwdata = match;
>         else
>                 i2c_imx->hwdata = (struct imx_i2c_hwdata *)
>                                 platform_get_device_id(pdev)->driver_data;
> @@ -1089,6 +1096,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
>         i2c_imx->adapter.nr             = pdev->id;
>         i2c_imx->adapter.dev.of_node    = pdev->dev.of_node;
>         i2c_imx->base                   = base;
> +       ACPI_COMPANION_SET(&i2c_imx->adapter.dev, ACPI_COMPANION(&pdev->dev));
>
>         /* Get I2C clock */
>         i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
> @@ -1247,6 +1255,7 @@ static struct platform_driver i2c_imx_driver = {
>                 .name = DRIVER_NAME,
>                 .pm = &i2c_imx_pm_ops,
>                 .of_match_table = i2c_imx_dt_ids,
> +               .acpi_match_table = i2c_imx_acpi_ids,
>         },
>         .id_table = imx_i2c_devtype,
>  };
> --
> 2.17.1
>
Oleksij Rempel Sept. 6, 2019, 2:39 p.m. UTC | #2
On Fri, Sep 06, 2019 at 03:53:19PM +0800, Biwen Li wrote:
> From: Chuanhua Han <chuanhua.han@nxp.com>
> 
> Enable NXP i2c controller to boot with ACPI
> 
> Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
> Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
> Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
> Signed-off-by: Biwen Li <biwen.li@nxp.com>

for i2c-imx.c:
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested on iMX6Q SabreSD
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>

> ---
> Change in v2:
> 	- Simplify code
> 	- Adjust header file order
> 	- Not use ACPI_PTR()
> 
>  drivers/acpi/acpi_apd.c      |  7 +++++++
>  drivers/i2c/busses/i2c-imx.c | 17 +++++++++++++----
>  2 files changed, 20 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
> index 7cd0c9ac71ea..71511ae2dfcd 100644
> --- a/drivers/acpi/acpi_apd.c
> +++ b/drivers/acpi/acpi_apd.c
> @@ -160,11 +160,17 @@ static const struct apd_device_desc hip08_i2c_desc = {
>  	.setup = acpi_apd_setup,
>  	.fixed_clk_rate = 250000000,
>  };
> +
>  static const struct apd_device_desc thunderx2_i2c_desc = {
>  	.setup = acpi_apd_setup,
>  	.fixed_clk_rate = 125000000,
>  };
>  
> +static const struct apd_device_desc nxp_i2c_desc = {
> +	.setup = acpi_apd_setup,
> +	.fixed_clk_rate = 350000000,
> +};
> +
>  static const struct apd_device_desc hip08_spi_desc = {
>  	.setup = acpi_apd_setup,
>  	.fixed_clk_rate = 250000000,
> @@ -238,6 +244,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
>  	{ "HISI02A1", APD_ADDR(hip07_i2c_desc) },
>  	{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },
>  	{ "HISI0173", APD_ADDR(hip08_spi_desc) },
> +	{ "NXP0001", APD_ADDR(nxp_i2c_desc) },
>  #endif
>  	{ }
>  };
> diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
> index 15f6cde6452f..a3b61336fe55 100644
> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -20,6 +20,7 @@
>   *
>   */
>  
> +#include <linux/acpi.h>
>  #include <linux/clk.h>
>  #include <linux/completion.h>
>  #include <linux/delay.h>
> @@ -255,6 +256,12 @@ static const struct of_device_id i2c_imx_dt_ids[] = {
>  };
>  MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);
>  
> +static const struct acpi_device_id i2c_imx_acpi_ids[] = {
> +	{"NXP0001", .driver_data = (kernel_ulong_t)&vf610_i2c_hwdata},
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(acpi, i2c_imx_acpi_ids);
> +
>  static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)
>  {
>  	return i2c_imx->hwdata->devtype == IMX1_I2C;
> @@ -1048,14 +1055,13 @@ static const struct i2c_algorithm i2c_imx_algo = {
>  
>  static int i2c_imx_probe(struct platform_device *pdev)
>  {
> -	const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
> -							   &pdev->dev);
>  	struct imx_i2c_struct *i2c_imx;
>  	struct resource *res;
>  	struct imxi2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
>  	void __iomem *base;
>  	int irq, ret;
>  	dma_addr_t phy_addr;
> +	const struct imx_i2c_hwdata *match;
>  
>  	dev_dbg(&pdev->dev, "<%s>\n", __func__);
>  
> @@ -1075,8 +1081,9 @@ static int i2c_imx_probe(struct platform_device *pdev)
>  	if (!i2c_imx)
>  		return -ENOMEM;
>  
> -	if (of_id)
> -		i2c_imx->hwdata = of_id->data;
> +	match = device_get_match_data(&pdev->dev);
> +	if (match)
> +		i2c_imx->hwdata = match;
>  	else
>  		i2c_imx->hwdata = (struct imx_i2c_hwdata *)
>  				platform_get_device_id(pdev)->driver_data;
> @@ -1089,6 +1096,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
>  	i2c_imx->adapter.nr		= pdev->id;
>  	i2c_imx->adapter.dev.of_node	= pdev->dev.of_node;
>  	i2c_imx->base			= base;
> +	ACPI_COMPANION_SET(&i2c_imx->adapter.dev, ACPI_COMPANION(&pdev->dev));
>  
>  	/* Get I2C clock */
>  	i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
> @@ -1247,6 +1255,7 @@ static struct platform_driver i2c_imx_driver = {
>  		.name = DRIVER_NAME,
>  		.pm = &i2c_imx_pm_ops,
>  		.of_match_table = i2c_imx_dt_ids,
> +		.acpi_match_table = i2c_imx_acpi_ids,
>  	},
>  	.id_table = imx_i2c_devtype,
>  };
> -- 
> 2.17.1
> 
>
Biwen Li Sept. 11, 2019, 6:23 a.m. UTC | #3
、> 
> Caution: EXT Email
> 
> On Fri, Sep 6, 2019 at 11:03 AM Biwen Li <biwen.li@nxp.com> wrote:
> >
> > From: Chuanhua Han <chuanhua.han@nxp.com>
> >
> > Enable NXP i2c controller to boot with ACPI
> >
> 
> Thanks, the code looks good to me,
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> 
> though...
> 
> > Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
> > Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
> > Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
> 
> This SoB chain is a bit odd. Who is the author of this? The first SoB in the chain
> usually points to the first (main) author. There is also possible to change that,
> though in that case for the rest we now use Co-developed-by tag rather than
> SoB.
> In any case, if Rafael and Wolfram are okay with this, I have no objections.
Thanks.
> 
> > Signed-off-by: Biwen Li <biwen.li@nxp.com>
> > ---
> > Change in v2:
> >         - Simplify code
> >         - Adjust header file order
> >         - Not use ACPI_PTR()
> >
> >  drivers/acpi/acpi_apd.c      |  7 +++++++
> >  drivers/i2c/busses/i2c-imx.c | 17 +++++++++++++----
> >  2 files changed, 20 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index
> > 7cd0c9ac71ea..71511ae2dfcd 100644
> > --- a/drivers/acpi/acpi_apd.c
> > +++ b/drivers/acpi/acpi_apd.c
> > @@ -160,11 +160,17 @@ static const struct apd_device_desc
> hip08_i2c_desc = {
> >         .setup = acpi_apd_setup,
> >         .fixed_clk_rate = 250000000,
> >  };
> > +
> >  static const struct apd_device_desc thunderx2_i2c_desc = {
> >         .setup = acpi_apd_setup,
> >         .fixed_clk_rate = 125000000,
> >  };
> >
> > +static const struct apd_device_desc nxp_i2c_desc = {
> > +       .setup = acpi_apd_setup,
> > +       .fixed_clk_rate = 350000000,
> > +};
> > +
> >  static const struct apd_device_desc hip08_spi_desc = {
> >         .setup = acpi_apd_setup,
> >         .fixed_clk_rate = 250000000,
> > @@ -238,6 +244,7 @@ static const struct acpi_device_id
> acpi_apd_device_ids[] = {
> >         { "HISI02A1", APD_ADDR(hip07_i2c_desc) },
> >         { "HISI02A2", APD_ADDR(hip08_i2c_desc) },
> >         { "HISI0173", APD_ADDR(hip08_spi_desc) },
> > +       { "NXP0001", APD_ADDR(nxp_i2c_desc) },
> >  #endif
> >         { }
> >  };
> > diff --git a/drivers/i2c/busses/i2c-imx.c
> > b/drivers/i2c/busses/i2c-imx.c index 15f6cde6452f..a3b61336fe55 100644
> > --- a/drivers/i2c/busses/i2c-imx.c
> > +++ b/drivers/i2c/busses/i2c-imx.c
> > @@ -20,6 +20,7 @@
> >   *
> >   */
> >
> > +#include <linux/acpi.h>
> >  #include <linux/clk.h>
> >  #include <linux/completion.h>
> >  #include <linux/delay.h>
> > @@ -255,6 +256,12 @@ static const struct of_device_id i2c_imx_dt_ids[]
> > = {  };  MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);
> >
> > +static const struct acpi_device_id i2c_imx_acpi_ids[] = {
> > +       {"NXP0001", .driver_data = (kernel_ulong_t)&vf610_i2c_hwdata},
> > +       { }
> > +};
> > +MODULE_DEVICE_TABLE(acpi, i2c_imx_acpi_ids);
> > +
> >  static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)  {
> >         return i2c_imx->hwdata->devtype == IMX1_I2C; @@ -1048,14
> > +1055,13 @@ static const struct i2c_algorithm i2c_imx_algo = {
> >
> >  static int i2c_imx_probe(struct platform_device *pdev)  {
> > -       const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
> > -
> &pdev->dev);
> >         struct imx_i2c_struct *i2c_imx;
> >         struct resource *res;
> >         struct imxi2c_platform_data *pdata =
> dev_get_platdata(&pdev->dev);
> >         void __iomem *base;
> >         int irq, ret;
> >         dma_addr_t phy_addr;
> > +       const struct imx_i2c_hwdata *match;
> >
> >         dev_dbg(&pdev->dev, "<%s>\n", __func__);
> >
> > @@ -1075,8 +1081,9 @@ static int i2c_imx_probe(struct platform_device
> *pdev)
> >         if (!i2c_imx)
> >                 return -ENOMEM;
> >
> > -       if (of_id)
> > -               i2c_imx->hwdata = of_id->data;
> > +       match = device_get_match_data(&pdev->dev);
> > +       if (match)
> > +               i2c_imx->hwdata = match;
> >         else
> >                 i2c_imx->hwdata = (struct imx_i2c_hwdata *)
> >
> platform_get_device_id(pdev)->driver_data;
> > @@ -1089,6 +1096,7 @@ static int i2c_imx_probe(struct platform_device
> *pdev)
> >         i2c_imx->adapter.nr             = pdev->id;
> >         i2c_imx->adapter.dev.of_node    = pdev->dev.of_node;
> >         i2c_imx->base                   = base;
> > +       ACPI_COMPANION_SET(&i2c_imx->adapter.dev,
> ACPI_COMPANION(&pdev->dev));
> >
> >         /* Get I2C clock */
> >         i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
> > @@ -1247,6 +1255,7 @@ static struct platform_driver i2c_imx_driver = {
> >                 .name = DRIVER_NAME,
> >                 .pm = &i2c_imx_pm_ops,
> >                 .of_match_table = i2c_imx_dt_ids,
> > +               .acpi_match_table = i2c_imx_acpi_ids,
> >         },
> >         .id_table = imx_i2c_devtype,
> >  };
> > --
> > 2.17.1
> >
> 
> 
> --
> With Best Regards,
> Andy Shevchenko
Biwen Li Sept. 11, 2019, 6:25 a.m. UTC | #4
Hi rafael, wolfram
	Any comments about this?
> 
> Enable NXP i2c controller to boot with ACPI
> 
> Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
> Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
> Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
> Change in v2:
> 	- Simplify code
> 	- Adjust header file order
> 	- Not use ACPI_PTR()
> 
>  drivers/acpi/acpi_apd.c      |  7 +++++++
>  drivers/i2c/busses/i2c-imx.c | 17 +++++++++++++----
>  2 files changed, 20 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index
> 7cd0c9ac71ea..71511ae2dfcd 100644
> --- a/drivers/acpi/acpi_apd.c
> +++ b/drivers/acpi/acpi_apd.c
> @@ -160,11 +160,17 @@ static const struct apd_device_desc hip08_i2c_desc
> = {
>  	.setup = acpi_apd_setup,
>  	.fixed_clk_rate = 250000000,
>  };
> +
>  static const struct apd_device_desc thunderx2_i2c_desc = {
>  	.setup = acpi_apd_setup,
>  	.fixed_clk_rate = 125000000,
>  };
> 
> +static const struct apd_device_desc nxp_i2c_desc = {
> +	.setup = acpi_apd_setup,
> +	.fixed_clk_rate = 350000000,
> +};
> +
>  static const struct apd_device_desc hip08_spi_desc = {
>  	.setup = acpi_apd_setup,
>  	.fixed_clk_rate = 250000000,
> @@ -238,6 +244,7 @@ static const struct acpi_device_id acpi_apd_device_ids[]
> = {
>  	{ "HISI02A1", APD_ADDR(hip07_i2c_desc) },
>  	{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },
>  	{ "HISI0173", APD_ADDR(hip08_spi_desc) },
> +	{ "NXP0001", APD_ADDR(nxp_i2c_desc) },
>  #endif
>  	{ }
>  };
> diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index
> 15f6cde6452f..a3b61336fe55 100644
> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -20,6 +20,7 @@
>   *
>   */
> 
> +#include <linux/acpi.h>
>  #include <linux/clk.h>
>  #include <linux/completion.h>
>  #include <linux/delay.h>
> @@ -255,6 +256,12 @@ static const struct of_device_id i2c_imx_dt_ids[] =
> {  };  MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);
> 
> +static const struct acpi_device_id i2c_imx_acpi_ids[] = {
> +	{"NXP0001", .driver_data = (kernel_ulong_t)&vf610_i2c_hwdata},
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(acpi, i2c_imx_acpi_ids);
> +
>  static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)  {
>  	return i2c_imx->hwdata->devtype == IMX1_I2C; @@ -1048,14 +1055,13
> @@ static const struct i2c_algorithm i2c_imx_algo = {
> 
>  static int i2c_imx_probe(struct platform_device *pdev)  {
> -	const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
> -							   &pdev->dev);
>  	struct imx_i2c_struct *i2c_imx;
>  	struct resource *res;
>  	struct imxi2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
>  	void __iomem *base;
>  	int irq, ret;
>  	dma_addr_t phy_addr;
> +	const struct imx_i2c_hwdata *match;
> 
>  	dev_dbg(&pdev->dev, "<%s>\n", __func__);
> 
> @@ -1075,8 +1081,9 @@ static int i2c_imx_probe(struct platform_device
> *pdev)
>  	if (!i2c_imx)
>  		return -ENOMEM;
> 
> -	if (of_id)
> -		i2c_imx->hwdata = of_id->data;
> +	match = device_get_match_data(&pdev->dev);
> +	if (match)
> +		i2c_imx->hwdata = match;
>  	else
>  		i2c_imx->hwdata = (struct imx_i2c_hwdata *)
>  				platform_get_device_id(pdev)->driver_data;
> @@ -1089,6 +1096,7 @@ static int i2c_imx_probe(struct platform_device
> *pdev)
>  	i2c_imx->adapter.nr		= pdev->id;
>  	i2c_imx->adapter.dev.of_node	= pdev->dev.of_node;
>  	i2c_imx->base			= base;
> +	ACPI_COMPANION_SET(&i2c_imx->adapter.dev,
> ACPI_COMPANION(&pdev->dev));
> 
>  	/* Get I2C clock */
>  	i2c_imx->clk = devm_clk_get(&pdev->dev, NULL); @@ -1247,6 +1255,7
> @@ static struct platform_driver i2c_imx_driver = {
>  		.name = DRIVER_NAME,
>  		.pm = &i2c_imx_pm_ops,
>  		.of_match_table = i2c_imx_dt_ids,
> +		.acpi_match_table = i2c_imx_acpi_ids,
>  	},
>  	.id_table = imx_i2c_devtype,
>  };
> --
> 2.17.1
Wolfram Sang Sept. 13, 2019, 2:13 p.m. UTC | #5
On Fri, Sep 06, 2019 at 03:53:19PM +0800, Biwen Li wrote:
> From: Chuanhua Han <chuanhua.han@nxp.com>
> 
> Enable NXP i2c controller to boot with ACPI
> 
> Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
> Signed-off-by: Udit Kumar <udit.kumar@nxp.com>
> Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
> Signed-off-by: Biwen Li <biwen.li@nxp.com>

Added Rafael's tag from v1 and applied to for-next, thanks!

Patch
diff mbox series

diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index 7cd0c9ac71ea..71511ae2dfcd 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -160,11 +160,17 @@  static const struct apd_device_desc hip08_i2c_desc = {
 	.setup = acpi_apd_setup,
 	.fixed_clk_rate = 250000000,
 };
+
 static const struct apd_device_desc thunderx2_i2c_desc = {
 	.setup = acpi_apd_setup,
 	.fixed_clk_rate = 125000000,
 };
 
+static const struct apd_device_desc nxp_i2c_desc = {
+	.setup = acpi_apd_setup,
+	.fixed_clk_rate = 350000000,
+};
+
 static const struct apd_device_desc hip08_spi_desc = {
 	.setup = acpi_apd_setup,
 	.fixed_clk_rate = 250000000,
@@ -238,6 +244,7 @@  static const struct acpi_device_id acpi_apd_device_ids[] = {
 	{ "HISI02A1", APD_ADDR(hip07_i2c_desc) },
 	{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },
 	{ "HISI0173", APD_ADDR(hip08_spi_desc) },
+	{ "NXP0001", APD_ADDR(nxp_i2c_desc) },
 #endif
 	{ }
 };
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 15f6cde6452f..a3b61336fe55 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -20,6 +20,7 @@ 
  *
  */
 
+#include <linux/acpi.h>
 #include <linux/clk.h>
 #include <linux/completion.h>
 #include <linux/delay.h>
@@ -255,6 +256,12 @@  static const struct of_device_id i2c_imx_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);
 
+static const struct acpi_device_id i2c_imx_acpi_ids[] = {
+	{"NXP0001", .driver_data = (kernel_ulong_t)&vf610_i2c_hwdata},
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, i2c_imx_acpi_ids);
+
 static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)
 {
 	return i2c_imx->hwdata->devtype == IMX1_I2C;
@@ -1048,14 +1055,13 @@  static const struct i2c_algorithm i2c_imx_algo = {
 
 static int i2c_imx_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
-							   &pdev->dev);
 	struct imx_i2c_struct *i2c_imx;
 	struct resource *res;
 	struct imxi2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	void __iomem *base;
 	int irq, ret;
 	dma_addr_t phy_addr;
+	const struct imx_i2c_hwdata *match;
 
 	dev_dbg(&pdev->dev, "<%s>\n", __func__);
 
@@ -1075,8 +1081,9 @@  static int i2c_imx_probe(struct platform_device *pdev)
 	if (!i2c_imx)
 		return -ENOMEM;
 
-	if (of_id)
-		i2c_imx->hwdata = of_id->data;
+	match = device_get_match_data(&pdev->dev);
+	if (match)
+		i2c_imx->hwdata = match;
 	else
 		i2c_imx->hwdata = (struct imx_i2c_hwdata *)
 				platform_get_device_id(pdev)->driver_data;
@@ -1089,6 +1096,7 @@  static int i2c_imx_probe(struct platform_device *pdev)
 	i2c_imx->adapter.nr		= pdev->id;
 	i2c_imx->adapter.dev.of_node	= pdev->dev.of_node;
 	i2c_imx->base			= base;
+	ACPI_COMPANION_SET(&i2c_imx->adapter.dev, ACPI_COMPANION(&pdev->dev));
 
 	/* Get I2C clock */
 	i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
@@ -1247,6 +1255,7 @@  static struct platform_driver i2c_imx_driver = {
 		.name = DRIVER_NAME,
 		.pm = &i2c_imx_pm_ops,
 		.of_match_table = i2c_imx_dt_ids,
+		.acpi_match_table = i2c_imx_acpi_ids,
 	},
 	.id_table = imx_i2c_devtype,
 };