From d2006bb79411c56b7bb6173f753a0ba6172d1fe6 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 22 Jan 2021 10:24:47 +0100 Subject: watchdog: pcwd: drop always-false if from remove callback If pcwd_isa_probe() succeeded pcwd_private.io_addr cannot be NULL. (And if pcwd_isa_probe() failed, pcwd_isa_remove() isn't called.) Acked-by: Guenter Roeck Acked-by: William Breathitt Gray Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20210122092449.426097-2-uwe@kleine-koenig.org Signed-off-by: Takashi Iwai --- drivers/watchdog/pcwd.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c index e86fa7f8351d..b95cd38f3ceb 100644 --- a/drivers/watchdog/pcwd.c +++ b/drivers/watchdog/pcwd.c @@ -956,9 +956,6 @@ static int pcwd_isa_remove(struct device *dev, unsigned int id) if (debug >= DEBUG) pr_debug("pcwd_isa_remove id=%d\n", id); - if (!pcwd_private.io_addr) - return 1; - /* Disable the board */ if (!nowayout) pcwd_stop(); -- cgit v1.2.3 From 7797b4e00faf3229ef67ac37015dd2ee8e4c7901 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 22 Jan 2021 10:24:48 +0100 Subject: media/radio: Make radio_isa_common_remove() return void Instead of an unconditional return 0, return no value. One of the two callers ignored the return value already before. This simplifies the next patch. Signed-off-by: Uwe Kleine-König Reviewed-by: Hans Verkuil Link: https://lore.kernel.org/r/20210122092449.426097-3-uwe@kleine-koenig.org Signed-off-by: Takashi Iwai --- drivers/media/radio/radio-isa.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/media/radio/radio-isa.c b/drivers/media/radio/radio-isa.c index ad2ac16ff12d..527f4c3b0ca4 100644 --- a/drivers/media/radio/radio-isa.c +++ b/drivers/media/radio/radio-isa.c @@ -273,8 +273,8 @@ err_dev_reg: return res; } -static int radio_isa_common_remove(struct radio_isa_card *isa, - unsigned region_size) +static void radio_isa_common_remove(struct radio_isa_card *isa, + unsigned region_size) { const struct radio_isa_ops *ops = isa->drv->ops; @@ -285,7 +285,6 @@ static int radio_isa_common_remove(struct radio_isa_card *isa, release_region(isa->io, region_size); v4l2_info(&isa->v4l2_dev, "Removed radio card %s\n", isa->drv->card); kfree(isa); - return 0; } int radio_isa_probe(struct device *pdev, unsigned int dev) @@ -342,7 +341,9 @@ int radio_isa_remove(struct device *pdev, unsigned int dev) { struct radio_isa_card *isa = dev_get_drvdata(pdev); - return radio_isa_common_remove(isa, isa->drv->region_size); + radio_isa_common_remove(isa, isa->drv->region_size); + + return 0; } EXPORT_SYMBOL_GPL(radio_isa_remove); -- cgit v1.2.3 From 30e88d017fcbeb50c4b07577fe059558361067e7 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 22 Jan 2021 10:24:49 +0100 Subject: isa: Make the remove callback for isa drivers return void The driver core ignores the return value of the remove callback, so don't give isa drivers the chance to provide a value. Adapt all isa_drivers with a remove callbacks accordingly; they all return 0 unconditionally anyhow. Acked-by: Marc Kleine-Budde # for drivers/net/can/sja1000/tscan1.c Acked-by: William Breathitt Gray Acked-by: Wolfram Sang # for drivers/i2c/ Reviewed-by: Takashi Iway # for sound/ Reviewed-by: Hans Verkuil # for drivers/media/ Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20210122092449.426097-4-uwe@kleine-koenig.org Signed-off-by: Takashi Iwai --- drivers/base/isa.c | 2 +- drivers/i2c/busses/i2c-elektor.c | 4 +--- drivers/i2c/busses/i2c-pca-isa.c | 4 +--- drivers/input/touchscreen/htcpen.c | 4 +--- drivers/media/radio/radio-isa.c | 4 +--- drivers/media/radio/radio-isa.h | 2 +- drivers/media/radio/radio-sf16fmr2.c | 4 +--- drivers/net/can/sja1000/tscan1.c | 4 +--- drivers/net/ethernet/3com/3c509.c | 3 +-- drivers/scsi/advansys.c | 3 +-- drivers/scsi/aha1542.c | 3 +-- drivers/scsi/fdomain_isa.c | 3 +-- drivers/scsi/g_NCR5380.c | 5 ++--- drivers/watchdog/pcwd.c | 4 +--- include/linux/isa.h | 2 +- sound/isa/ad1848/ad1848.c | 3 +-- sound/isa/adlib.c | 3 +-- sound/isa/cmi8328.c | 3 +-- sound/isa/cmi8330.c | 3 +-- sound/isa/cs423x/cs4231.c | 3 +-- sound/isa/cs423x/cs4236.c | 3 +-- sound/isa/es1688/es1688.c | 3 +-- sound/isa/es18xx.c | 5 ++--- sound/isa/galaxy/galaxy.c | 3 +-- sound/isa/gus/gusclassic.c | 3 +-- sound/isa/gus/gusextreme.c | 3 +-- sound/isa/gus/gusmax.c | 3 +-- sound/isa/gus/interwave.c | 3 +-- sound/isa/msnd/msnd_pinnacle.c | 3 +-- sound/isa/opl3sa2.c | 3 +-- sound/isa/opti9xx/miro.c | 3 +-- sound/isa/opti9xx/opti92x-ad1848.c | 5 ++--- sound/isa/sb/jazz16.c | 3 +-- sound/isa/sb/sb16.c | 3 +-- sound/isa/sb/sb8.c | 3 +-- sound/isa/sc6000.c | 3 +-- sound/isa/sscape.c | 3 +-- sound/isa/wavefront/wavefront.c | 3 +-- 38 files changed, 41 insertions(+), 83 deletions(-) (limited to 'drivers') diff --git a/drivers/base/isa.c b/drivers/base/isa.c index 2772f5d1948a..aa4737667026 100644 --- a/drivers/base/isa.c +++ b/drivers/base/isa.c @@ -51,7 +51,7 @@ static int isa_bus_remove(struct device *dev) struct isa_driver *isa_driver = dev->platform_data; if (isa_driver && isa_driver->remove) - return isa_driver->remove(dev, to_isa_dev(dev)->id); + isa_driver->remove(dev, to_isa_dev(dev)->id); return 0; } diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c index 140426db28df..b72a3c3ef2ab 100644 --- a/drivers/i2c/busses/i2c-elektor.c +++ b/drivers/i2c/busses/i2c-elektor.c @@ -282,7 +282,7 @@ static int elektor_probe(struct device *dev, unsigned int id) return -ENODEV; } -static int elektor_remove(struct device *dev, unsigned int id) +static void elektor_remove(struct device *dev, unsigned int id) { i2c_del_adapter(&pcf_isa_ops); @@ -298,8 +298,6 @@ static int elektor_remove(struct device *dev, unsigned int id) iounmap(base_iomem); release_mem_region(base, 2); } - - return 0; } static struct isa_driver i2c_elektor_driver = { diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c index f27bc1e55385..85e8cf58e8bf 100644 --- a/drivers/i2c/busses/i2c-pca-isa.c +++ b/drivers/i2c/busses/i2c-pca-isa.c @@ -161,7 +161,7 @@ static int pca_isa_probe(struct device *dev, unsigned int id) return -ENODEV; } -static int pca_isa_remove(struct device *dev, unsigned int id) +static void pca_isa_remove(struct device *dev, unsigned int id) { i2c_del_adapter(&pca_isa_ops); @@ -170,8 +170,6 @@ static int pca_isa_remove(struct device *dev, unsigned int id) free_irq(irq, &pca_isa_ops); } release_region(base, IO_SIZE); - - return 0; } static struct isa_driver pca_isa_driver = { diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c index 2f261a34f9c2..056ba76087e8 100644 --- a/drivers/input/touchscreen/htcpen.c +++ b/drivers/input/touchscreen/htcpen.c @@ -171,7 +171,7 @@ static int htcpen_isa_probe(struct device *dev, unsigned int id) return err; } -static int htcpen_isa_remove(struct device *dev, unsigned int id) +static void htcpen_isa_remove(struct device *dev, unsigned int id) { struct input_dev *htcpen_dev = dev_get_drvdata(dev); @@ -182,8 +182,6 @@ static int htcpen_isa_remove(struct device *dev, unsigned int id) release_region(HTCPEN_PORT_INDEX, 2); release_region(HTCPEN_PORT_INIT, 1); release_region(HTCPEN_PORT_IRQ_CLEAR, 1); - - return 0; } #ifdef CONFIG_PM diff --git a/drivers/media/radio/radio-isa.c b/drivers/media/radio/radio-isa.c index 527f4c3b0ca4..c591c0851fa2 100644 --- a/drivers/media/radio/radio-isa.c +++ b/drivers/media/radio/radio-isa.c @@ -337,13 +337,11 @@ int radio_isa_probe(struct device *pdev, unsigned int dev) } EXPORT_SYMBOL_GPL(radio_isa_probe); -int radio_isa_remove(struct device *pdev, unsigned int dev) +void radio_isa_remove(struct device *pdev, unsigned int dev) { struct radio_isa_card *isa = dev_get_drvdata(pdev); radio_isa_common_remove(isa, isa->drv->region_size); - - return 0; } EXPORT_SYMBOL_GPL(radio_isa_remove); diff --git a/drivers/media/radio/radio-isa.h b/drivers/media/radio/radio-isa.h index 2f0736edfda8..c9159958203e 100644 --- a/drivers/media/radio/radio-isa.h +++ b/drivers/media/radio/radio-isa.h @@ -91,7 +91,7 @@ struct radio_isa_driver { int radio_isa_match(struct device *pdev, unsigned int dev); int radio_isa_probe(struct device *pdev, unsigned int dev); -int radio_isa_remove(struct device *pdev, unsigned int dev); +void radio_isa_remove(struct device *pdev, unsigned int dev); #ifdef CONFIG_PNP int radio_isa_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id); diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c index 0388894cfe41..d0dde55b7930 100644 --- a/drivers/media/radio/radio-sf16fmr2.c +++ b/drivers/media/radio/radio-sf16fmr2.c @@ -293,11 +293,9 @@ static void fmr2_remove(struct fmr2 *fmr2) kfree(fmr2); } -static int fmr2_isa_remove(struct device *pdev, unsigned int ndev) +static void fmr2_isa_remove(struct device *pdev, unsigned int ndev) { fmr2_remove(dev_get_drvdata(pdev)); - - return 0; } static void fmr2_pnp_remove(struct pnp_dev *pdev) diff --git a/drivers/net/can/sja1000/tscan1.c b/drivers/net/can/sja1000/tscan1.c index 6ea802c66124..3dbba8d61afb 100644 --- a/drivers/net/can/sja1000/tscan1.c +++ b/drivers/net/can/sja1000/tscan1.c @@ -159,7 +159,7 @@ static int tscan1_probe(struct device *dev, unsigned id) return -ENXIO; } -static int tscan1_remove(struct device *dev, unsigned id /*unused*/) +static void tscan1_remove(struct device *dev, unsigned id /*unused*/) { struct net_device *netdev; struct sja1000_priv *priv; @@ -179,8 +179,6 @@ static int tscan1_remove(struct device *dev, unsigned id /*unused*/) release_region(pld_base, TSCAN1_PLD_SIZE); free_sja1000dev(netdev); - - return 0; } static struct isa_driver tscan1_isa_driver = { diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c index 667f38c9e4c6..53e1f7e07959 100644 --- a/drivers/net/ethernet/3com/3c509.c +++ b/drivers/net/ethernet/3com/3c509.c @@ -335,12 +335,11 @@ static int el3_isa_match(struct device *pdev, unsigned int ndev) return 1; } -static int el3_isa_remove(struct device *pdev, +static void el3_isa_remove(struct device *pdev, unsigned int ndev) { el3_device_remove(pdev); dev_set_drvdata(pdev, NULL); - return 0; } #ifdef CONFIG_PM diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 79830e77afa9..b1e97f75b0ba 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -11459,12 +11459,11 @@ static int advansys_isa_probe(struct device *dev, unsigned int id) return err; } -static int advansys_isa_remove(struct device *dev, unsigned int id) +static void advansys_isa_remove(struct device *dev, unsigned int id) { int ioport = _asc_def_iop_base[id]; advansys_release(dev_get_drvdata(dev)); release_region(ioport, ASC_IOADR_GAP); - return 0; } static struct isa_driver advansys_isa_driver = { diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c index dc5667afeb27..e0d8cca1c70b 100644 --- a/drivers/scsi/aha1542.c +++ b/drivers/scsi/aha1542.c @@ -1025,12 +1025,11 @@ static int aha1542_isa_match(struct device *pdev, unsigned int ndev) return 1; } -static int aha1542_isa_remove(struct device *pdev, +static void aha1542_isa_remove(struct device *pdev, unsigned int ndev) { aha1542_release(dev_get_drvdata(pdev)); dev_set_drvdata(pdev, NULL); - return 0; } static struct isa_driver aha1542_isa_driver = { diff --git a/drivers/scsi/fdomain_isa.c b/drivers/scsi/fdomain_isa.c index e0cdcd2003d0..2b4280a43a53 100644 --- a/drivers/scsi/fdomain_isa.c +++ b/drivers/scsi/fdomain_isa.c @@ -175,7 +175,7 @@ static int fdomain_isa_param_match(struct device *dev, unsigned int ndev) return 1; } -static int fdomain_isa_remove(struct device *dev, unsigned int ndev) +static void fdomain_isa_remove(struct device *dev, unsigned int ndev) { struct Scsi_Host *sh = dev_get_drvdata(dev); int base = sh->io_port; @@ -183,7 +183,6 @@ static int fdomain_isa_remove(struct device *dev, unsigned int ndev) fdomain_destroy(sh); release_region(base, FDOMAIN_REGION_SIZE); dev_set_drvdata(dev, NULL); - return 0; } static struct isa_driver fdomain_isa_driver = { diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 2df2f38a9b12..7ba3c9312731 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -720,12 +720,11 @@ static int generic_NCR5380_isa_match(struct device *pdev, unsigned int ndev) return 1; } -static int generic_NCR5380_isa_remove(struct device *pdev, - unsigned int ndev) +static void generic_NCR5380_isa_remove(struct device *pdev, + unsigned int ndev) { generic_NCR5380_release_resources(dev_get_drvdata(pdev)); dev_set_drvdata(pdev, NULL); - return 0; } static struct isa_driver generic_NCR5380_isa_driver = { diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c index b95cd38f3ceb..a793b03a785d 100644 --- a/drivers/watchdog/pcwd.c +++ b/drivers/watchdog/pcwd.c @@ -951,7 +951,7 @@ error_request_region: return ret; } -static int pcwd_isa_remove(struct device *dev, unsigned int id) +static void pcwd_isa_remove(struct device *dev, unsigned int id) { if (debug >= DEBUG) pr_debug("pcwd_isa_remove id=%d\n", id); @@ -968,8 +968,6 @@ static int pcwd_isa_remove(struct device *dev, unsigned int id) (pcwd_private.revision == PCWD_REVISION_A) ? 2 : 4); pcwd_private.io_addr = 0x0000; cards_found--; - - return 0; } static void pcwd_isa_shutdown(struct device *dev, unsigned int id) diff --git a/include/linux/isa.h b/include/linux/isa.h index 41336da0f4e7..e30963190968 100644 --- a/include/linux/isa.h +++ b/include/linux/isa.h @@ -13,7 +13,7 @@ struct isa_driver { int (*match)(struct device *, unsigned int); int (*probe)(struct device *, unsigned int); - int (*remove)(struct device *, unsigned int); + void (*remove)(struct device *, unsigned int); void (*shutdown)(struct device *, unsigned int); int (*suspend)(struct device *, unsigned int, pm_message_t); int (*resume)(struct device *, unsigned int); diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c index 593c6e959afe..48f7cc57c3da 100644 --- a/sound/isa/ad1848/ad1848.c +++ b/sound/isa/ad1848/ad1848.c @@ -118,10 +118,9 @@ out: snd_card_free(card); return error; } -static int snd_ad1848_remove(struct device *dev, unsigned int n) +static void snd_ad1848_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/adlib.c b/sound/isa/adlib.c index 5105524b6f38..e6cd7c4da38e 100644 --- a/sound/isa/adlib.c +++ b/sound/isa/adlib.c @@ -97,10 +97,9 @@ out: snd_card_free(card); return error; } -static int snd_adlib_remove(struct device *dev, unsigned int n) +static void snd_adlib_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } static struct isa_driver snd_adlib_driver = { diff --git a/sound/isa/cmi8328.c b/sound/isa/cmi8328.c index faca5dd95bfe..3b9fbb02864b 100644 --- a/sound/isa/cmi8328.c +++ b/sound/isa/cmi8328.c @@ -403,7 +403,7 @@ error: return err; } -static int snd_cmi8328_remove(struct device *pdev, unsigned int dev) +static void snd_cmi8328_remove(struct device *pdev, unsigned int dev) { struct snd_card *card = dev_get_drvdata(pdev); struct snd_cmi8328 *cmi = card->private_data; @@ -420,7 +420,6 @@ static int snd_cmi8328_remove(struct device *pdev, unsigned int dev) snd_cmi8328_cfg_write(cmi->port, CFG2, 0); snd_cmi8328_cfg_write(cmi->port, CFG3, 0); snd_card_free(card); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c index 4669eb0cc8ce..19e258527d69 100644 --- a/sound/isa/cmi8330.c +++ b/sound/isa/cmi8330.c @@ -631,11 +631,10 @@ static int snd_cmi8330_isa_probe(struct device *pdev, return 0; } -static int snd_cmi8330_isa_remove(struct device *devptr, +static void snd_cmi8330_isa_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c index 2135963eba78..383ee621cea1 100644 --- a/sound/isa/cs423x/cs4231.c +++ b/sound/isa/cs423x/cs4231.c @@ -135,10 +135,9 @@ out: snd_card_free(card); return error; } -static int snd_cs4231_remove(struct device *dev, unsigned int n) +static void snd_cs4231_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c index fa3c39cff5f8..24688271e73f 100644 --- a/sound/isa/cs423x/cs4236.c +++ b/sound/isa/cs423x/cs4236.c @@ -487,11 +487,10 @@ static int snd_cs423x_isa_probe(struct device *pdev, return 0; } -static int snd_cs423x_isa_remove(struct device *pdev, +static void snd_cs423x_isa_remove(struct device *pdev, unsigned int dev) { snd_card_free(dev_get_drvdata(pdev)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c index 64610571a5e1..d99bb3f8f0c1 100644 --- a/sound/isa/es1688/es1688.c +++ b/sound/isa/es1688/es1688.c @@ -192,10 +192,9 @@ out: return error; } -static int snd_es1688_isa_remove(struct device *dev, unsigned int n) +static void snd_es1688_isa_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } static struct isa_driver snd_es1688_driver = { diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c index 5f8d7e8a5477..9beef8079177 100644 --- a/sound/isa/es18xx.c +++ b/sound/isa/es18xx.c @@ -2210,11 +2210,10 @@ static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev) } } -static int snd_es18xx_isa_remove(struct device *devptr, - unsigned int dev) +static void snd_es18xx_isa_remove(struct device *devptr, + unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/galaxy/galaxy.c b/sound/isa/galaxy/galaxy.c index 65f9f46c9f58..d33d69f29924 100644 --- a/sound/isa/galaxy/galaxy.c +++ b/sound/isa/galaxy/galaxy.c @@ -608,10 +608,9 @@ error: return err; } -static int snd_galaxy_remove(struct device *dev, unsigned int n) +static void snd_galaxy_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } static struct isa_driver snd_galaxy_driver = { diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c index 7419b1939754..015f88a11352 100644 --- a/sound/isa/gus/gusclassic.c +++ b/sound/isa/gus/gusclassic.c @@ -195,10 +195,9 @@ out: snd_card_free(card); return error; } -static int snd_gusclassic_remove(struct device *dev, unsigned int n) +static void snd_gusclassic_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } static struct isa_driver snd_gusclassic_driver = { diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c index ed2f9d64efae..c9f31b4fb887 100644 --- a/sound/isa/gus/gusextreme.c +++ b/sound/isa/gus/gusextreme.c @@ -324,10 +324,9 @@ out: snd_card_free(card); return error; } -static int snd_gusextreme_remove(struct device *dev, unsigned int n) +static void snd_gusextreme_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); - return 0; } static struct isa_driver snd_gusextreme_driver = { diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c index 05cd9be4dd8a..dc09fbd6f88d 100644 --- a/sound/isa/gus/gusmax.c +++ b/sound/isa/gus/gusmax.c @@ -338,10 +338,9 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev) return err; } -static int snd_gusmax_remove(struct device *devptr, unsigned int dev) +static void snd_gusmax_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #define DEV_NAME "gusmax" diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c index 3e9ad930deae..e4d412e72b75 100644 --- a/sound/isa/gus/interwave.c +++ b/sound/isa/gus/interwave.c @@ -825,10 +825,9 @@ static int snd_interwave_isa_probe(struct device *pdev, } } -static int snd_interwave_isa_remove(struct device *devptr, unsigned int dev) +static void snd_interwave_isa_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } static struct isa_driver snd_interwave_driver = { diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c index 24b34ecf5e5b..69647b41300d 100644 --- a/sound/isa/msnd/msnd_pinnacle.c +++ b/sound/isa/msnd/msnd_pinnacle.c @@ -1049,10 +1049,9 @@ cfg_error: #endif } -static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev) +static void snd_msnd_isa_remove(struct device *pdev, unsigned int dev) { snd_msnd_unload(dev_get_drvdata(pdev)); - return 0; } static struct isa_driver snd_msnd_driver = { diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c index 85a181acd388..7649a8a4128d 100644 --- a/sound/isa/opl3sa2.c +++ b/sound/isa/opl3sa2.c @@ -878,11 +878,10 @@ static int snd_opl3sa2_isa_probe(struct device *pdev, return 0; } -static int snd_opl3sa2_isa_remove(struct device *devptr, +static void snd_opl3sa2_isa_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c index 44ed1b65f6ce..20933342f5eb 100644 --- a/sound/isa/opti9xx/miro.c +++ b/sound/isa/opti9xx/miro.c @@ -1480,11 +1480,10 @@ static int snd_miro_isa_probe(struct device *devptr, unsigned int n) return 0; } -static int snd_miro_isa_remove(struct device *devptr, +static void snd_miro_isa_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #define DEV_NAME "miro" diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c index 881d3b5711d2..758f5b579138 100644 --- a/sound/isa/opti9xx/opti92x-ad1848.c +++ b/sound/isa/opti9xx/opti92x-ad1848.c @@ -1024,11 +1024,10 @@ static int snd_opti9xx_isa_probe(struct device *devptr, return 0; } -static int snd_opti9xx_isa_remove(struct device *devptr, - unsigned int dev) +static void snd_opti9xx_isa_remove(struct device *devptr, + unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/sb/jazz16.c b/sound/isa/sb/jazz16.c index ee379bbf70a4..0e2e0ab3b9e4 100644 --- a/sound/isa/sb/jazz16.c +++ b/sound/isa/sb/jazz16.c @@ -339,12 +339,11 @@ err_free: return err; } -static int snd_jazz16_remove(struct device *devptr, unsigned int dev) +static void snd_jazz16_remove(struct device *devptr, unsigned int dev) { struct snd_card *card = dev_get_drvdata(devptr); snd_card_free(card); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c index 479197c13803..db284b7b88a7 100644 --- a/sound/isa/sb/sb16.c +++ b/sound/isa/sb/sb16.c @@ -547,10 +547,9 @@ static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev) } } -static int snd_sb16_isa_remove(struct device *pdev, unsigned int dev) +static void snd_sb16_isa_remove(struct device *pdev, unsigned int dev) { snd_card_free(dev_get_drvdata(pdev)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c index 438109f167d6..8e3e67b9a341 100644 --- a/sound/isa/sb/sb8.c +++ b/sound/isa/sb/sb8.c @@ -192,10 +192,9 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev) return err; } -static int snd_sb8_remove(struct device *pdev, unsigned int dev) +static void snd_sb8_remove(struct device *pdev, unsigned int dev) { snd_card_free(dev_get_drvdata(pdev)); - return 0; } #ifdef CONFIG_PM diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c index 3d0bea44f454..def137579717 100644 --- a/sound/isa/sc6000.c +++ b/sound/isa/sc6000.c @@ -672,7 +672,7 @@ err_exit: return err; } -static int snd_sc6000_remove(struct device *devptr, unsigned int dev) +static void snd_sc6000_remove(struct device *devptr, unsigned int dev) { struct snd_card *card = dev_get_drvdata(devptr); char __iomem **vport = card->private_data; @@ -684,7 +684,6 @@ static int snd_sc6000_remove(struct device *devptr, unsigned int dev) release_region(mss_port[dev], 4); snd_card_free(card); - return 0; } static struct isa_driver snd_sc6000_driver = { diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c index 2e5a5c5279e8..e70ef9aee545 100644 --- a/sound/isa/sscape.c +++ b/sound/isa/sscape.c @@ -1183,10 +1183,9 @@ _release_card: return ret; } -static int snd_sscape_remove(struct device *devptr, unsigned int dev) +static void snd_sscape_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #define DEV_NAME "sscape" diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c index 9e0f6b226775..b750a4fd40de 100644 --- a/sound/isa/wavefront/wavefront.c +++ b/sound/isa/wavefront/wavefront.c @@ -565,11 +565,10 @@ static int snd_wavefront_isa_probe(struct device *pdev, return 0; } -static int snd_wavefront_isa_remove(struct device *devptr, +static void snd_wavefront_isa_remove(struct device *devptr, unsigned int dev) { snd_card_free(dev_get_drvdata(devptr)); - return 0; } #define DEV_NAME "wavefront" -- cgit v1.2.3 From 06e577b45db37e8a96ce04e7daa64480492b4ace Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 20 Jan 2021 22:49:53 +0100 Subject: mfd: arizona: Add MODULE_SOFTDEP("pre: arizona_ldo1") The (shared) probing code of the arizona-i2c and arizona-spi modules takes the following steps during init: 1. Call mfd_add_devices() for a set of early child-devices, this includes the arizona_ldo1 device which provides one of the core-regulators. 2. Bulk enable the core-regulators. 3. Read the device id. 4. Call mfd_add_devices() for the other child-devices. This sequence depends on 1. leading to not only the child-device being created, but also the driver for the child-device binding to it and registering its regulator. This requires the arizona_ldo1 driver to be loaded before the shared probing code runs. Add a softdep for this to both modules to ensure that this requirement is met. Note this mirrors the existing MODULE_SOFTDEP("pre: wm8994_regulator") in the wm8994 code, which has a similar init sequence. Reviewed-by: Andy Shevchenko Acked-by: Charles Keepax Signed-off-by: Hans de Goede Signed-off-by: Lee Jones --- drivers/mfd/arizona-i2c.c | 1 + drivers/mfd/arizona-spi.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c index 4b58e3ad6eb6..2a4a3a164d0a 100644 --- a/drivers/mfd/arizona-i2c.c +++ b/drivers/mfd/arizona-i2c.c @@ -115,6 +115,7 @@ static struct i2c_driver arizona_i2c_driver = { module_i2c_driver(arizona_i2c_driver); +MODULE_SOFTDEP("pre: arizona_ldo1"); MODULE_DESCRIPTION("Arizona I2C bus interface"); MODULE_AUTHOR("Mark Brown "); MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 2633e147b76c..704f214d2614 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -110,6 +110,7 @@ static struct spi_driver arizona_spi_driver = { module_spi_driver(arizona_spi_driver); +MODULE_SOFTDEP("pre: arizona_ldo1"); MODULE_DESCRIPTION("Arizona SPI bus interface"); MODULE_AUTHOR("Mark Brown "); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 039da225d644e523a3bbec78ee258b25fe0676f9 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 20 Jan 2021 22:49:54 +0100 Subject: mfd: arizona: Replace arizona_of_get_type() with device_get_match_data() Replace the custom arizona_of_get_type() function with the generic device_get_match_data() helper. Besides being a nice cleanup this also makes it easier to add support for binding to ACPI enumerated devices. While at it also fix a possible NULL pointer deref of the id argument to the probe functions (this could happen on e.g. manual driver binding through sysfs). Suggested-by: Andy Shevchenko Reviewed-by: Andy Shevchenko Acked-by: Charles Keepax Signed-off-by: Hans de Goede Signed-off-by: Lee Jones --- drivers/mfd/arizona-core.c | 11 ----------- drivers/mfd/arizona-i2c.c | 10 ++++++---- drivers/mfd/arizona-spi.c | 10 ++++++---- drivers/mfd/arizona.h | 9 --------- 4 files changed, 12 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 000cb82023e3..75f1bc671d59 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -797,17 +797,6 @@ const struct dev_pm_ops arizona_pm_ops = { EXPORT_SYMBOL_GPL(arizona_pm_ops); #ifdef CONFIG_OF -unsigned long arizona_of_get_type(struct device *dev) -{ - const struct of_device_id *id = of_match_device(arizona_of_match, dev); - - if (id) - return (unsigned long)id->data; - else - return 0; -} -EXPORT_SYMBOL_GPL(arizona_of_get_type); - static int arizona_of_get_core_pdata(struct arizona *arizona) { struct arizona_pdata *pdata = &arizona->pdata; diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c index 2a4a3a164d0a..5e83b730c4ce 100644 --- a/drivers/mfd/arizona-i2c.c +++ b/drivers/mfd/arizona-i2c.c @@ -23,14 +23,16 @@ static int arizona_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + const void *match_data; struct arizona *arizona; const struct regmap_config *regmap_config = NULL; - unsigned long type; + unsigned long type = 0; int ret; - if (i2c->dev.of_node) - type = arizona_of_get_type(&i2c->dev); - else + match_data = device_get_match_data(&i2c->dev); + if (match_data) + type = (unsigned long)match_data; + else if (id) type = id->driver_data; switch (type) { diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 704f214d2614..798b88295c77 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -23,14 +23,16 @@ static int arizona_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); + const void *match_data; struct arizona *arizona; const struct regmap_config *regmap_config = NULL; - unsigned long type; + unsigned long type = 0; int ret; - if (spi->dev.of_node) - type = arizona_of_get_type(&spi->dev); - else + match_data = device_get_match_data(&spi->dev); + if (match_data) + type = (unsigned long)match_data; + else if (id) type = id->driver_data; switch (type) { diff --git a/drivers/mfd/arizona.h b/drivers/mfd/arizona.h index 995efc6d7f32..801cbbcd71cb 100644 --- a/drivers/mfd/arizona.h +++ b/drivers/mfd/arizona.h @@ -50,13 +50,4 @@ int arizona_dev_exit(struct arizona *arizona); int arizona_irq_init(struct arizona *arizona); int arizona_irq_exit(struct arizona *arizona); -#ifdef CONFIG_OF -unsigned long arizona_of_get_type(struct device *dev); -#else -static inline unsigned long arizona_of_get_type(struct device *dev) -{ - return 0; -} -#endif - #endif -- cgit v1.2.3 From e933836744a2606e6cd42a6a83e5e43da2a60788 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 20 Jan 2021 22:49:55 +0100 Subject: mfd: arizona: Add support for ACPI enumeration of WM5102 connected over SPI The Intel Bay Trail (x86/ACPI) based Lenovo Yoga Tablet 2 series use a WM5102 codec connected over SPI. Add support for ACPI enumeration to arizona-spi so that arizona-spi can bind to the codec on these tablets. This is loosely based on an earlier attempt (for Android-x86) at this by Christian Hartmann, combined with insights in things like the speaker GPIO from the android-x86 android port for the Lenovo Yoga Tablet 2 1051F/L [1]. [1] https://github.com/Kitsune2222/Android_Yoga_Tablet_2-1051F_Kernel Cc: Christian Hartmann Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Acked-by: Charles Keepax Signed-off-by: Lee Jones --- drivers/mfd/arizona-spi.c | 127 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 798b88295c77..24a2c75d691a 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -7,7 +7,10 @@ * Author: Mark Brown */ +#include #include +#include +#include #include #include #include @@ -15,11 +18,128 @@ #include #include #include +#include #include #include "arizona.h" +#ifdef CONFIG_ACPI +const struct acpi_gpio_params reset_gpios = { 1, 0, false }; +const struct acpi_gpio_params ldoena_gpios = { 2, 0, false }; + +static const struct acpi_gpio_mapping arizona_acpi_gpios[] = { + { "reset-gpios", &reset_gpios, 1, }, + { "wlf,ldoena-gpios", &ldoena_gpios, 1 }, + { } +}; + +/* + * The ACPI resources for the device only describe external GPIO-s. They do + * not provide mappings for the GPIO-s coming from the Arizona codec itself. + */ +static const struct gpiod_lookup arizona_soc_gpios[] = { + { "arizona", 2, "wlf,spkvdd-ena", 0, GPIO_ACTIVE_HIGH }, + { "arizona", 4, "wlf,micd-pol", 0, GPIO_ACTIVE_LOW }, +}; + +/* + * The AOSP 3.5 mm Headset: Accessory Specification gives the following values: + * Function A Play/Pause: 0 ohm + * Function D Voice assistant: 135 ohm + * Function B Volume Up 240 ohm + * Function C Volume Down 470 ohm + * Minimum Mic DC resistance 1000 ohm + * Minimum Ear speaker impedance 16 ohm + * Note the first max value below must be less then the min. speaker impedance, + * to allow CTIA/OMTP detection to work. The other max values are the closest + * value from extcon-arizona.c:arizona_micd_levels halfway 2 button resistances. + */ +static const struct arizona_micd_range arizona_micd_aosp_ranges[] = { + { .max = 11, .key = KEY_PLAYPAUSE }, + { .max = 186, .key = KEY_VOICECOMMAND }, + { .max = 348, .key = KEY_VOLUMEUP }, + { .max = 752, .key = KEY_VOLUMEDOWN }, +}; + +static void arizona_spi_acpi_remove_lookup(void *lookup) +{ + gpiod_remove_lookup_table(lookup); +} + +static int arizona_spi_acpi_probe(struct arizona *arizona) +{ + struct gpiod_lookup_table *lookup; + acpi_status status; + int ret; + + /* Add mappings for the 2 ACPI declared GPIOs used for reset and ldo-ena */ + devm_acpi_dev_add_driver_gpios(arizona->dev, arizona_acpi_gpios); + + /* Add lookups for the SoCs own GPIOs used for micdet-polarity and spkVDD-enable */ + lookup = devm_kzalloc(arizona->dev, + struct_size(lookup, table, ARRAY_SIZE(arizona_soc_gpios) + 1), + GFP_KERNEL); + if (!lookup) + return -ENOMEM; + + lookup->dev_id = dev_name(arizona->dev); + memcpy(lookup->table, arizona_soc_gpios, sizeof(arizona_soc_gpios)); + + gpiod_add_lookup_table(lookup); + ret = devm_add_action_or_reset(arizona->dev, arizona_spi_acpi_remove_lookup, lookup); + if (ret) + return ret; + + /* Enable 32KHz clock from SoC to codec for jack-detect */ + status = acpi_evaluate_object(ACPI_HANDLE(arizona->dev), "CLKE", NULL, NULL); + if (ACPI_FAILURE(status)) + dev_warn(arizona->dev, "Failed to enable 32KHz clk ACPI error %d\n", status); + + /* + * Some DSDTs wrongly declare the IRQ trigger-type as IRQF_TRIGGER_FALLING + * The IRQ line will stay low when a new IRQ event happens between reading + * the IRQ status flags and acknowledging them. When the IRQ line stays + * low like this the IRQ will never trigger again when its type is set + * to IRQF_TRIGGER_FALLING. Correct the IRQ trigger-type to fix this. + * + * Note theoretically it is possible that some boards are not capable + * of handling active low level interrupts. In that case setting the + * flag to IRQF_TRIGGER_FALLING would not be a bug (and we would need + * to work around this) but so far all known usages of IRQF_TRIGGER_FALLING + * are a bug in the board's DSDT. + */ + arizona->pdata.irq_flags = IRQF_TRIGGER_LOW; + + /* Wait 200 ms after jack insertion */ + arizona->pdata.micd_detect_debounce = 200; + + /* Use standard AOSP values for headset-button mappings */ + arizona->pdata.micd_ranges = arizona_micd_aosp_ranges; + arizona->pdata.num_micd_ranges = ARRAY_SIZE(arizona_micd_aosp_ranges); + + return 0; +} + +static const struct acpi_device_id arizona_acpi_match[] = { + { + .id = "WM510204", + .driver_data = WM5102, + }, + { + .id = "WM510205", + .driver_data = WM5102, + }, + { } +}; +MODULE_DEVICE_TABLE(acpi, arizona_acpi_match); +#else +static int arizona_spi_acpi_probe(struct arizona *arizona) +{ + return -ENODEV; +} +#endif + static int arizona_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); @@ -77,6 +197,12 @@ static int arizona_spi_probe(struct spi_device *spi) arizona->dev = &spi->dev; arizona->irq = spi->irq; + if (has_acpi_companion(&spi->dev)) { + ret = arizona_spi_acpi_probe(arizona); + if (ret) + return ret; + } + return arizona_dev_init(arizona); } @@ -104,6 +230,7 @@ static struct spi_driver arizona_spi_driver = { .name = "arizona", .pm = &arizona_pm_ops, .of_match_table = of_match_ptr(arizona_of_match), + .acpi_match_table = ACPI_PTR(arizona_acpi_match), }, .probe = arizona_spi_probe, .remove = arizona_spi_remove, -- cgit v1.2.3