v4.10-rc4 to v4.10-rc5: battery regression on Nokia N900
From: Pavel Machek <hidden>
Date: 2017-01-23 23:26:58
Also in:
linux-omap, lkml
Subsystem:
hardware monitoring, the rest · Maintainers:
Guenter Roeck, Linus Torvalds
Hi!
quoted
quoted
I'll try to revert it on the top of v4.10-rc5 now... and yes, it fixes the issue. Any idea what went wrong and how to fix that? Anyway as we are at -rc5 and this is warning fix that caused a regression on different hardware... it should be reverted.Agreed. What exactly does "stopped working" mean ? That might help understanding what went wrong./sys files related to battery no longer appear. I beieve this has something to do with it: [ 2.374877] of_get_named_gpiod_flags: parsed 'reset-gpios' property of node '/ocp at 68000000/spi at 48098000/tsc2005 at 0[0]' - status (0) [ 2.375946] input: TSC2005 touchscreen as /devices/platform/68000000.ocp/48098000.spi/spi_master/spi1/spi1.0/input/input5 [ 2.392120] rx51-battery: probe of n900-battery failed with error -22
Mystery solved:
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index 3932f92..fe5ec82 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c@@ -545,8 +545,10 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata, int i, j, err, id; /* Do not accept invalid characters in hwmon name attribute */ - if (name && (!strlen(name) || strpbrk(name, "-* \t\n"))) + if (name && (!strlen(name) || strpbrk(name, "-* \t\n"))) { + printk("hwmon: Invalid character detected: %s\n", name); return ERR_PTR(-EINVAL); + } id = ida_simple_get(&hwmon_ida, 0, 0, GFP_KERNEL); if (id < 0)
pavel at n900:~$ dmesg | grep -5 Invalid [ 0.829650] of_get_named_gpiod_flags: parsed 'gpio-reset' property of node '/ocp at 68000000/i2c at 48072000/tlv320aic3x at 19[0]' - status (0) [ 0.833831] tsl2563 2-0029: model 7, rev. 0 [ 0.837768] of_get_named_gpiod_flags: parsed 'enable-gpio' property of node '/ocp at 68000000/i2c at 48072000/lp5523 at 32[0]' - status (0) [ 1.921417] omap_i2c 48072000.i2c: controller timed out [ 2.056823] lp5523x 2-0032: lp5523 Programmable led chip found [ 2.064147] hwmon: Invalid character detected: bq27200-0 [ 2.064544] bq27xxx-battery 2-0055: failed to register battery [ 2.064605] bq27xxx-battery: probe of 2-0055 failed with error -22 [ 2.065368] of_get_named_gpiod_flags: parsed 'power-gpio' property of node '/ocp at 68000000/i2c at 48072000/tpa6130a2 at 60[0]' - status (0) [ 2.083221] bq2415x-charger 2-006b: automode supported, waiting for events [ 2.084442] bq2415x-charger 2-006b: driver registered -- [ 2.369842] g_ether gadget: g_ether ready [ 2.377197] tsc2005 spi1.0: GPIO lookup for consumer reset [ 2.377227] tsc2005 spi1.0: using device tree for GPIO lookup [ 2.377288] of_get_named_gpiod_flags: parsed 'reset-gpios' property of node '/ocp at 68000000/spi at 48098000/tsc2005 at 0[0]' - status (0) [ 2.378936] input: TSC2005 touchscreen as /devices/platform/68000000.ocp/48098000.spi/spi_master/spi1/spi1.0/input/input5 [ 2.395111] hwmon: Invalid character detected: rx51-battery [ 2.402587] rx51-battery: probe of n900-battery failed with error -22 [ 2.410247] omap_hsmmc 4809c000.mmc: GPIO lookup for consumer cd [ 2.410247] omap_hsmmc 4809c000.mmc: using device tree for GPIO lookup [ 2.410278] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/ocp at 68000000/mmc at 4809c000[0]' [ 2.410278] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/ocp at 68000000/mmc@4809c000[0]' Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20170124/6b7e6316/attachment.sig>