| Message ID | 20240208170410.67975-19-afd@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Remove pm_power_off use in drivers/power/reset | expand |
Hi Andrew, On Thu, Feb 08, 2024 at 11:04:09AM -0600, Andrew Davis wrote: > Currently all these device data elements are top level global variables. > Move these into a struct. This will be used in the next patch when > the global variable usage is removed. Doing this in two steps makes > the patches easier to read. > > Signed-off-by: Andrew Davis <afd@ti.com> > Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> > --- > drivers/power/reset/syscon-poweroff.c | 36 +++++++++++++++------------ > 1 file changed, 20 insertions(+), 16 deletions(-) > > diff --git a/drivers/power/reset/syscon-poweroff.c b/drivers/power/reset/syscon-poweroff.c > index 1b2ce7734260c..4899a019256e8 100644 > --- a/drivers/power/reset/syscon-poweroff.c > +++ b/drivers/power/reset/syscon-poweroff.c > @@ -15,15 +15,19 @@ > #include <linux/pm.h> > #include <linux/regmap.h> > > -static struct regmap *map; > -static u32 offset; > -static u32 value; > -static u32 mask; > +struct syscon_poweroff_data { > + struct regmap *map; > + u32 offset; > + u32 value; > + u32 mask; > +}; > + > +static struct syscon_poweroff_data *data; This patch is broken without the follow-up patch, since data is never allocated. You need to move the memory allocation from the next patch to this one. Greetings, -- Sebastian
On 2/11/24 5:52 PM, Sebastian Reichel wrote: > Hi Andrew, > > On Thu, Feb 08, 2024 at 11:04:09AM -0600, Andrew Davis wrote: >> Currently all these device data elements are top level global variables. >> Move these into a struct. This will be used in the next patch when >> the global variable usage is removed. Doing this in two steps makes >> the patches easier to read. >> >> Signed-off-by: Andrew Davis <afd@ti.com> >> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> >> --- >> drivers/power/reset/syscon-poweroff.c | 36 +++++++++++++++------------ >> 1 file changed, 20 insertions(+), 16 deletions(-) >> >> diff --git a/drivers/power/reset/syscon-poweroff.c b/drivers/power/reset/syscon-poweroff.c >> index 1b2ce7734260c..4899a019256e8 100644 >> --- a/drivers/power/reset/syscon-poweroff.c >> +++ b/drivers/power/reset/syscon-poweroff.c >> @@ -15,15 +15,19 @@ >> #include <linux/pm.h> >> #include <linux/regmap.h> >> >> -static struct regmap *map; >> -static u32 offset; >> -static u32 value; >> -static u32 mask; >> +struct syscon_poweroff_data { >> + struct regmap *map; >> + u32 offset; >> + u32 value; >> + u32 mask; >> +}; >> + >> +static struct syscon_poweroff_data *data; > > This patch is broken without the follow-up patch, since data is > never allocated. You need to move the memory allocation from the > next patch to this one. Ah, yes, seems I meant to make this struct point to a definition not just a declaration. But just moving the allocation to this patch seems to make this easier too, will do that, v4 on the way. Thanks, Andrew > > Greetings, > > -- Sebastian
diff --git a/drivers/power/reset/syscon-poweroff.c b/drivers/power/reset/syscon-poweroff.c index 1b2ce7734260c..4899a019256e8 100644 --- a/drivers/power/reset/syscon-poweroff.c +++ b/drivers/power/reset/syscon-poweroff.c @@ -15,15 +15,19 @@ #include <linux/pm.h> #include <linux/regmap.h> -static struct regmap *map; -static u32 offset; -static u32 value; -static u32 mask; +struct syscon_poweroff_data { + struct regmap *map; + u32 offset; + u32 value; + u32 mask; +}; + +static struct syscon_poweroff_data *data; static void syscon_poweroff(void) { /* Issue the poweroff */ - regmap_update_bits(map, offset, mask, value); + regmap_update_bits(data->map, data->offset, data->mask, data->value); mdelay(1000); @@ -35,22 +39,22 @@ static int syscon_poweroff_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; int mask_err, value_err; - map = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap"); - if (IS_ERR(map)) { - map = syscon_node_to_regmap(dev->parent->of_node); - if (IS_ERR(map)) { + data->map = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap"); + if (IS_ERR(data->map)) { + data->map = syscon_node_to_regmap(dev->parent->of_node); + if (IS_ERR(data->map)) { dev_err(dev, "unable to get syscon"); - return PTR_ERR(map); + return PTR_ERR(data->map); } } - if (of_property_read_u32(dev->of_node, "offset", &offset)) { + if (of_property_read_u32(dev->of_node, "offset", &data->offset)) { dev_err(dev, "unable to read 'offset'"); return -EINVAL; } - value_err = of_property_read_u32(dev->of_node, "value", &value); - mask_err = of_property_read_u32(dev->of_node, "mask", &mask); + value_err = of_property_read_u32(dev->of_node, "value", &data->value); + mask_err = of_property_read_u32(dev->of_node, "mask", &data->mask); if (value_err && mask_err) { dev_err(dev, "unable to read 'value' and 'mask'"); return -EINVAL; @@ -58,11 +62,11 @@ static int syscon_poweroff_probe(struct platform_device *pdev) if (value_err) { /* support old binding */ - value = mask; - mask = 0xFFFFFFFF; + data->value = data->mask; + data->mask = 0xFFFFFFFF; } else if (mask_err) { /* support value without mask*/ - mask = 0xFFFFFFFF; + data->mask = 0xFFFFFFFF; } if (pm_power_off) {