From 6e408ed8be0e65d869af4525b53e363b83c9b739 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Wed, 18 May 2016 17:31:59 +0800 Subject: [PATCH] pinctrl: imx: fix initialization of imx_pinctrl_desc To i.MX7D, there are two iomux controllers, iomuxc and iomuxc_lpsr. They should not share one pin controller descriptor, otherwise the value filled into imx_pinctrl_desc when probing the first iomux controller will be overridden when probing the second one. In this patch, discard the static allcoated imx_pinctrl_desc and switch to dynamically allcate pin controller descriptor for each iomux controller. Signed-off-by: Peng Fan Cc: Shawn Guo Cc: Philipp Zabel Cc: Stefan Agner Cc: Vladimir Zapolskiy Signed-off-by: Linus Walleij --- drivers/pinctrl/freescale/pinctrl-imx.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c index 47ccfcc..be19a1b 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -513,13 +513,6 @@ static const struct pinconf_ops imx_pinconf_ops = { .pin_config_group_dbg_show = imx_pinconf_group_dbg_show, }; -static struct pinctrl_desc imx_pinctrl_desc = { - .pctlops = &imx_pctrl_ops, - .pmxops = &imx_pmx_ops, - .confops = &imx_pinconf_ops, - .owner = THIS_MODULE, -}; - /* * Each pin represented in fsl,pins consists of 5 u32 PIN_FUNC_ID and * 1 u32 CONFIG, so 24 types in total for each pin. @@ -722,6 +715,7 @@ int imx_pinctrl_probe(struct platform_device *pdev, { struct regmap_config config = { .name = "gpr" }; struct device_node *dev_np = pdev->dev.of_node; + struct pinctrl_desc *imx_pinctrl_desc; struct device_node *np; struct imx_pinctrl *ipctl; struct resource *res; @@ -776,9 +770,18 @@ int imx_pinctrl_probe(struct platform_device *pdev, } } - imx_pinctrl_desc.name = dev_name(&pdev->dev); - imx_pinctrl_desc.pins = info->pins; - imx_pinctrl_desc.npins = info->npins; + imx_pinctrl_desc = devm_kzalloc(&pdev->dev, sizeof(*imx_pinctrl_desc), + GFP_KERNEL); + if (!imx_pinctrl_desc) + return -ENOMEM; + + imx_pinctrl_desc->name = dev_name(&pdev->dev); + imx_pinctrl_desc->pins = info->pins; + imx_pinctrl_desc->npins = info->npins; + imx_pinctrl_desc->pctlops = &imx_pctrl_ops, + imx_pinctrl_desc->pmxops = &imx_pmx_ops, + imx_pinctrl_desc->confops = &imx_pinconf_ops, + imx_pinctrl_desc->owner = THIS_MODULE, ret = imx_pinctrl_probe_dt(pdev, info); if (ret) { @@ -789,7 +792,8 @@ int imx_pinctrl_probe(struct platform_device *pdev, ipctl->info = info; ipctl->dev = info->dev; platform_set_drvdata(pdev, ipctl); - ipctl->pctl = devm_pinctrl_register(&pdev->dev, &imx_pinctrl_desc, ipctl); + ipctl->pctl = devm_pinctrl_register(&pdev->dev, + imx_pinctrl_desc, ipctl); if (IS_ERR(ipctl->pctl)) { dev_err(&pdev->dev, "could not register IMX pinctrl driver\n"); return PTR_ERR(ipctl->pctl); -- 2.7.4