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pinctrl: imx6ul: add IOMUXC SNVS pinctrl driver for i.MX 6ULL 

On i.MX 6ULL, the BOOT_MODEx and TAMPERx pin MUX and CTRL registers
are available in a separate IOMUXC_SNVS module. Add support for the
IOMUXC_SNVS module to the i.MX 6UL pinctrl driver.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Bai Ping 2018-01-06 15:25:53 +01:00 committed by Linus Walleij
parent ce8dc09433
commit ba33f4f42e
2 changed files with 50 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/pinctrl/fsl,imx6ul-pinctrl.txt
View File

@ -4,7 +4,8 @@ Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
and usage.
Required properties:
- compatible: "fsl,imx6ul-iomuxc"
- compatible: "fsl,imx6ul-iomuxc" for main IOMUX controller or
"fsl,imx6ull-iomuxc-snvs" for i.MX 6ULL's SNVS IOMUX controller.
- fsl,pins: each entry consists of 6 integers and represents the mux and config
setting for one pin. The first 5 integers <mux_reg conf_reg input_reg mux_val
input_val> are specified using a PIN_FUNC_ID macro, which can be found in

52
drivers/pinctrl/freescale/pinctrl-imx6ul.c
View File

@ -150,6 +150,21 @@ enum imx6ul_pads {
MX6UL_PAD_CSI_DATA07 = 128,
};
enum imx6ull_lpsr_pads {
MX6ULL_PAD_BOOT_MODE0 = 0,
MX6ULL_PAD_BOOT_MODE1 = 1,
MX6ULL_PAD_SNVS_TAMPER0 = 2,
MX6ULL_PAD_SNVS_TAMPER1 = 3,
MX6ULL_PAD_SNVS_TAMPER2 = 4,
MX6ULL_PAD_SNVS_TAMPER3 = 5,
MX6ULL_PAD_SNVS_TAMPER4 = 6,
MX6ULL_PAD_SNVS_TAMPER5 = 7,
MX6ULL_PAD_SNVS_TAMPER6 = 8,
MX6ULL_PAD_SNVS_TAMPER7 = 9,
MX6ULL_PAD_SNVS_TAMPER8 = 10,
MX6ULL_PAD_SNVS_TAMPER9 = 11,
};
/* Pad names for the pinmux subsystem */
static const struct pinctrl_pin_desc imx6ul_pinctrl_pads[] = {
IMX_PINCTRL_PIN(MX6UL_PAD_RESERVE0),
@ -283,20 +298,49 @@ static const struct pinctrl_pin_desc imx6ul_pinctrl_pads[] = {
IMX_PINCTRL_PIN(MX6UL_PAD_CSI_DATA07),
};
static struct imx_pinctrl_soc_info imx6ul_pinctrl_info = {
/* pad for i.MX6ULL lpsr pinmux */
static const struct pinctrl_pin_desc imx6ull_snvs_pinctrl_pads[] = {
IMX_PINCTRL_PIN(MX6ULL_PAD_BOOT_MODE0),
IMX_PINCTRL_PIN(MX6ULL_PAD_BOOT_MODE1),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER0),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER1),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER2),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER3),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER4),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER5),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER6),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER7),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER8),
IMX_PINCTRL_PIN(MX6ULL_PAD_SNVS_TAMPER9),
};
static const struct imx_pinctrl_soc_info imx6ul_pinctrl_info = {
.pins = imx6ul_pinctrl_pads,
.npins = ARRAY_SIZE(imx6ul_pinctrl_pads),
.gpr_compatible = "fsl,imx6ul-iomuxc-gpr",
};
static struct of_device_id imx6ul_pinctrl_of_match[] = {
{ .compatible = "fsl,imx6ul-iomuxc", },
static const struct imx_pinctrl_soc_info imx6ull_snvs_pinctrl_info = {
.pins = imx6ull_snvs_pinctrl_pads,
.npins = ARRAY_SIZE(imx6ull_snvs_pinctrl_pads),
.flags = ZERO_OFFSET_VALID,
};
static const struct of_device_id imx6ul_pinctrl_of_match[] = {
{ .compatible = "fsl,imx6ul-iomuxc", .data = &imx6ul_pinctrl_info, },
{ .compatible = "fsl,imx6ull-iomuxc-snvs", .data = &imx6ull_snvs_pinctrl_info, },
{ /* sentinel */ }
};
static int imx6ul_pinctrl_probe(struct platform_device *pdev)
{
return imx_pinctrl_probe(pdev, &imx6ul_pinctrl_info);
const struct imx_pinctrl_soc_info *pinctrl_info;
pinctrl_info = of_device_get_match_data(&pdev->dev);
if (!pinctrl_info)
return -ENODEV;
return imx_pinctrl_probe(pdev, pinctrl_info);
}
static struct platform_driver imx6ul_pinctrl_driver = {