From 0da4cebebc37b0f68c1ad991a1c6e4ecdb1bbc41 Mon Sep 17 00:00:00 2001 From: Chester Lin Date: Wed, 29 Mar 2023 12:16:30 +0800 Subject: [PATCH] pinctrl: s32: separate const device data from struct s32_pinctrl_soc_info The .data field in struct of_device_id is used as a const member so it's inappropriate to attach struct s32_pinctrl_soc_info with of_device_id because some members in s32_pinctrl_soc_info need to be filled by pinctrl-s32cc at runtime. For this reason, struct s32_pinctrl_soc_info must be allocated in pinctrl-s32cc and then create a new struct s32_pinctrl_soc_data in order to represent const .data in of_device_id. To combine these two structures, a s32_pinctrl_soc_data pointer is introduced in s32_pinctrl_soc_info. Besides, use of_device_get_match_data() instead of of_match_device() since the driver only needs to retrieve the .data from of_device_id. Link: https://lore.kernel.org/r/20230329041630.8011-1-clin@suse.com/ Suggested-by: Andy Shevchenko Signed-off-by: Chester Lin Reviewed-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/pinctrl/nxp/pinctrl-s32.h | 14 +++++++++----- drivers/pinctrl/nxp/pinctrl-s32cc.c | 30 ++++++++++++++++++------------ drivers/pinctrl/nxp/pinctrl-s32g2.c | 14 +++++--------- 3 files changed, 32 insertions(+), 26 deletions(-) diff --git a/drivers/pinctrl/nxp/pinctrl-s32.h b/drivers/pinctrl/nxp/pinctrl-s32.h index 2f7aecd..add3c77 100644 --- a/drivers/pinctrl/nxp/pinctrl-s32.h +++ b/drivers/pinctrl/nxp/pinctrl-s32.h @@ -34,24 +34,28 @@ struct s32_pin_range { unsigned int end; }; -struct s32_pinctrl_soc_info { - struct device *dev; +struct s32_pinctrl_soc_data { const struct pinctrl_pin_desc *pins; unsigned int npins; + const struct s32_pin_range *mem_pin_ranges; + unsigned int mem_regions; +}; + +struct s32_pinctrl_soc_info { + struct device *dev; + const struct s32_pinctrl_soc_data *soc_data; struct s32_pin_group *groups; unsigned int ngroups; struct pinfunction *functions; unsigned int nfunctions; unsigned int grp_index; - const struct s32_pin_range *mem_pin_ranges; - unsigned int mem_regions; }; #define S32_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) #define S32_PIN_RANGE(_start, _end) { .start = _start, .end = _end } int s32_pinctrl_probe(struct platform_device *pdev, - struct s32_pinctrl_soc_info *info); + const struct s32_pinctrl_soc_data *soc_data); int s32_pinctrl_resume(struct device *dev); int s32_pinctrl_suspend(struct device *dev); #endif /* __DRIVERS_PINCTRL_S32_H */ diff --git a/drivers/pinctrl/nxp/pinctrl-s32cc.c b/drivers/pinctrl/nxp/pinctrl-s32cc.c index 8373468..41e0241 100644 --- a/drivers/pinctrl/nxp/pinctrl-s32cc.c +++ b/drivers/pinctrl/nxp/pinctrl-s32cc.c @@ -106,7 +106,7 @@ s32_get_region(struct pinctrl_dev *pctldev, unsigned int pin) { struct s32_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); const struct s32_pin_range *pin_range; - unsigned int mem_regions = ipctl->info->mem_regions; + unsigned int mem_regions = ipctl->info->soc_data->mem_regions; unsigned int i; for (i = 0; i < mem_regions; i++) { @@ -688,8 +688,8 @@ int s32_pinctrl_suspend(struct device *dev) int ret; unsigned int config; - for (i = 0; i < info->npins; i++) { - pin = &info->pins[i]; + for (i = 0; i < info->soc_data->npins; i++) { + pin = &info->soc_data->pins[i]; if (!s32_pinctrl_should_save(ipctl, pin->number)) continue; @@ -713,8 +713,8 @@ int s32_pinctrl_resume(struct device *dev) struct s32_pinctrl_context *saved_context = &ipctl->saved_context; int ret, i; - for (i = 0; i < info->npins; i++) { - pin = &info->pins[i]; + for (i = 0; i < info->soc_data->npins; i++) { + pin = &info->soc_data->pins[i]; if (!s32_pinctrl_should_save(ipctl, pin->number)) continue; @@ -831,7 +831,7 @@ static int s32_pinctrl_probe_dt(struct platform_device *pdev, struct resource *res; struct regmap *map; void __iomem *base; - int mem_regions = info->mem_regions; + unsigned int mem_regions = info->soc_data->mem_regions; int ret; u32 nfuncs = 0; u32 i = 0; @@ -869,7 +869,7 @@ static int s32_pinctrl_probe_dt(struct platform_device *pdev, } ipctl->regions[i].map = map; - ipctl->regions[i].pin_range = &info->mem_pin_ranges[i]; + ipctl->regions[i].pin_range = &info->soc_data->mem_pin_ranges[i]; } nfuncs = of_get_child_count(np); @@ -904,20 +904,26 @@ static int s32_pinctrl_probe_dt(struct platform_device *pdev, } int s32_pinctrl_probe(struct platform_device *pdev, - struct s32_pinctrl_soc_info *info) + const struct s32_pinctrl_soc_data *soc_data) { struct s32_pinctrl *ipctl; int ret; struct pinctrl_desc *s32_pinctrl_desc; + struct s32_pinctrl_soc_info *info; #ifdef CONFIG_PM_SLEEP struct s32_pinctrl_context *saved_context; #endif - if (!info || !info->pins || !info->npins) { + if (!soc_data || !soc_data->pins || !soc_data->npins) { dev_err(&pdev->dev, "wrong pinctrl info\n"); return -EINVAL; } + info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->soc_data = soc_data; info->dev = &pdev->dev; /* Create state holders etc for this driver */ @@ -938,8 +944,8 @@ int s32_pinctrl_probe(struct platform_device *pdev, return -ENOMEM; s32_pinctrl_desc->name = dev_name(&pdev->dev); - s32_pinctrl_desc->pins = info->pins; - s32_pinctrl_desc->npins = info->npins; + s32_pinctrl_desc->pins = info->soc_data->pins; + s32_pinctrl_desc->npins = info->soc_data->npins; s32_pinctrl_desc->pctlops = &s32_pctrl_ops; s32_pinctrl_desc->pmxops = &s32_pmx_ops; s32_pinctrl_desc->confops = &s32_pinconf_ops; @@ -960,7 +966,7 @@ int s32_pinctrl_probe(struct platform_device *pdev, #ifdef CONFIG_PM_SLEEP saved_context = &ipctl->saved_context; saved_context->pads = - devm_kcalloc(&pdev->dev, info->npins, + devm_kcalloc(&pdev->dev, info->soc_data->npins, sizeof(*saved_context->pads), GFP_KERNEL); if (!saved_context->pads) diff --git a/drivers/pinctrl/nxp/pinctrl-s32g2.c b/drivers/pinctrl/nxp/pinctrl-s32g2.c index d9f3ff6..224a12c 100644 --- a/drivers/pinctrl/nxp/pinctrl-s32g2.c +++ b/drivers/pinctrl/nxp/pinctrl-s32g2.c @@ -721,7 +721,7 @@ static const struct s32_pin_range s32_pin_ranges_siul2[] = { S32_PIN_RANGE(942, 1007), }; -static struct s32_pinctrl_soc_info s32_pinctrl_info = { +static const struct s32_pinctrl_soc_data s32_pinctrl_data = { .pins = s32_pinctrl_pads_siul2, .npins = ARRAY_SIZE(s32_pinctrl_pads_siul2), .mem_pin_ranges = s32_pin_ranges_siul2, @@ -730,9 +730,8 @@ static struct s32_pinctrl_soc_info s32_pinctrl_info = { static const struct of_device_id s32_pinctrl_of_match[] = { { - .compatible = "nxp,s32g2-siul2-pinctrl", - .data = (void *) &s32_pinctrl_info, + .data = &s32_pinctrl_data, }, { /* sentinel */ } }; @@ -740,14 +739,11 @@ MODULE_DEVICE_TABLE(of, s32_pinctrl_of_match); static int s32g_pinctrl_probe(struct platform_device *pdev) { - const struct of_device_id *of_id = - of_match_device(s32_pinctrl_of_match, &pdev->dev); + const struct s32_pinctrl_soc_data *soc_data; - if (!of_id) - return -ENODEV; + soc_data = of_device_get_match_data(&pdev->dev); - return s32_pinctrl_probe - (pdev, (struct s32_pinctrl_soc_info *) of_id->data); + return s32_pinctrl_probe(pdev, soc_data); } static const struct dev_pm_ops s32g_pinctrl_pm_ops = { -- 2.7.4