On Fri, Sep 06, 2019 at 03:53:19PM +0800, Biwen Li wrote: > From: Chuanhua Han <[email protected]> > > Enable NXP i2c controller to boot with ACPI > > Signed-off-by: Meenakshi Aggarwal <[email protected]> > Signed-off-by: Udit Kumar <[email protected]> > Signed-off-by: Chuanhua Han <[email protected]> > Signed-off-by: Biwen Li <[email protected]>
for i2c-imx.c: Acked-by: Oleksij Rempel <[email protected]> Tested on iMX6Q SabreSD Tested-by: Oleksij Rempel <[email protected]> > --- > 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 > > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
